Patent ID: 12201866

DESCRIPTION

The phrases “in one embodiment.” “in various embodiments,” “in some embodiments,” and the like are used repeatedly. Such phrases do not necessarily refer to the same embodiment. The terms “comprising.” “having.” and “including” are synonymous, unless the context dictates otherwise.

“Additional,” “adjacent,” “adjusted,” “advancing,” “alternatively.” “arranged,” “attached.” “auditory,” “back,” “before.” “both,” “caused,” “central,” “closed-chain,” “comprising,” “conditional,” “configured,” “contained,” “contiguous,” “covered,” “during.” “dynamic.” “clastic.” “end.” “engaging,” “enormous,” “exceeding.” “extending,” “factory-built,” “flexible,” “force-multiplying.” “greater,” “gripped.” “hanging.” “heavy . . . ” “herein,” “hinged,” “inelastic,” “inward,” “large,” “less,” “limited,” “local,” “mobile,” “more,” “moved,” “narrow.” “nominal,” “numerous.” “offsite.” “onsite,” “open,” “open-chain,” “outward,” “over.” “overlapping.” “portable.” “possible,” “prevented,” “primary.” “projecting,” “protective,” “real time,” “remaining.” “retracted,” “revealed.” “robust,” “single,” “spanning,” “static,” “substantially.” “suddenly,” “sufficient,” “supported,” “thereof.” “therethrough,” “through,” “tightening.” “top,” “under.” “various,” “vertical,” “visible.” “wherein,” “while,” “wider.” “wireless,” “within,” “without,” or other such descriptors herein are used in their normal yes-or-no sense, not merely as terms of degree, unless context dictates otherwise. In light of the present disclosure those skilled in the art will understand from context what is meant by “configured” or “enough” and by other such relational descriptors used herein.

Reference is now made in detail to the description of the embodiments as illustrated in the drawings. While embodiments are described in connection with the drawings and related descriptions, there is no intent to limit the scope to the embodiments disclosed herein. On the contrary, the intent is to cover all alternatives, modifications and equivalents. In alternate embodiments, additional devices, or combinations of illustrated devices, may be added to, or combined, without limiting the scope to the embodiments disclosed herein.

Turning now toFIG.1, there is shown a system100configured to repurpose a bedroom, office, hallway or other indoor space (as a local facility120B, for example) to facilitate one or more open chain exercises (wood choppers, for example) or closed chain exercises (or both) performed by one or more local users190. In some variants such facilitation may include interaction with a cloud server or remote server200(at a central facility120A, for example). An image capture module131may (optionally) be configured to allow a live instructor of other human consultant to view image data135A (video clips, e.g.) obtained via upload141via (one or more cameras of) a client device300local to the exercise space. Alternatively or additionally a dialog initiation132resident on a server may provide real-time feedback data135B (transmitted via a wireless linkage145as a download142across a free space medium146, e.g.).

In some contexts such feedback data135B may include (one or more instances of) auditory guidance151, visual guidance152, a structured dialog153, or safety information154(an email message sent as a conditional response to an upload141that indicates equipment is not being used safely, e.g.). Alternatively or additionally, such interactions may include synchronization signals (signaling an appropriate speed for doing an exercise, e.g.).

As shown the exercise space is bounded by a door105upon which is mounted a primary member160having one or more inelastic straps101in contact with a top121and bottom122thereof. In some variants the one or more inelastic straps101may be (1) greater than 2.5 centimeters in width, (2) up to about 1 millimeter in thickness. (3) wrapped diagonally around corners of the door105or vertically as shown, (4) more than 50% woven polymer by weight, or (5) more than one of these.

As shown one or more primary members160may each include one or more force-multiplying tightening mechanisms180by which longitudinal leverage115may be artificially amplified. One or more clampable levers181may be configured to exert a static tension191greater than 10 newtons upon the primary member160and thereby upon the top121and bottom122of the door105so as to avoid slippage. In some variants, for example, such levers may be configured to engage a ratchet185having a pawl187configured to engage a rotary succession of teeth188surrounding a gear189. As shown a series of several loops109are provided at various vertical positions spanning a vertical range175greater than one meter. When pulled upon via an extension171A clipped to one or more of the loops109, moreover, a dynamic tension192on the order of 1 kilonewton may be exerted longitudinally via the primary member160upon the top121and bottom122of the door105.

As used herein a value is “on the order of” another if they differ by less than a factor of ten (i.e. an order of magnitude). As used herein “substantially inelastic” refers to materials or structures that elongate less than 10% when pulled with a force of 100 newtons and “nominally inelastic” refers to materials or structures that elongate less than 5% when pulled with such a force. Unqualifiedly “inelastic” likewise refers to materials or structures that elongate less than 5% when pulled with such a force. As used herein “elastic” refers to materials or structures that elongate at least 10% when pulled with such a force. As used herein, a plain reference numeral (like171, e.g.) may refer generally to a member of a class of items (like extensions, e.g.) exemplified with a hybrid numeral (like171A, e.g.) and it will be understood that every item identified with a hybrid numeral is also an exemplar of the class.

FIG.2illustrates several components of an exemplary server200(like that ofFIG.1, e.g.). In some embodiments, server200may include many more components than those shown inFIG.2. However, it is not necessary that all conventional components be shown in order to disclose an illustrative embodiment. As shown inFIG.2, one or more servers200include a data network interface206(for connecting via the Internet or other networks to or within respective facilities120A-B ofFIG.1, e.g.). Server200may also include one or more instances of processing units202, memory204, user inputs208, and display hardware212all interconnected along with the network interface206via a bus216. Memory204generally comprises a random access memory (“RAM”), a read only memory (“ROM”), and a permanent mass storage device, such as a disk drive.

Memory204may likewise contain one or more instances of operating systems210, hosting services214, download services224, or other modules. This can occur, for example, in a context in which such servers200implement an Internet of Things (IoT) hub, for example. These and other digital components may be loaded from a non-transitory computer readable storage medium218into memory204of the server200using a drive mechanism (not shown) associated with a non-transitory computer readable storage medium218, such as a floppy disc, tape, DVD/CD-ROM drive, flash card, memory card, or the like. In some embodiments, digital components may also be loaded via the network interface206, rather than via a computer readable storage medium218. Special-purpose circuitry222may, in some variants, include some or all of the event-sequencing logic described below and one or more security features260(e.g. for preventing digital hacks).

Such special-purpose circuitry222may (optionally) be implemented as an Application-Specific Integrated Circuit (ASIC) or in a UI governance server, e.g.—in which some or all of the functional modules described below may be implemented. Transistor-based circuitry comprises one or more instances of an event-sequencing structure generally as described in U.S. Pat. Pub. No. 20150094046 but configured as described herein. Circuitry222includes one or more instances of pattern recognition module, for example, each including an electrical node set upon which one or more (instances of) responses, identifiers, descriptions, alarms, or other informational indications are represented digitally as a corresponding voltage configuration. Moreover one or more such modules may be configured to generate one or more rankings by comparing image data or other performance indications against one or more designer-defined exercise patterns (provided by an onsite camera or microphone, e.g.), all within the abilities of one of ordinary skill without any undue experimentation in light of teachings herein.

FIG.3illustrates several components of an exemplary client device300(like that ofFIG.1, e.g.). In some embodiments, client device300may include many more components than those shown inFIG.3. However, it is not necessary that all conventional components be shown in order to disclose an illustrative embodiment. As shown inFIG.3, client device300includes a data network interface306(for connecting via the Internet or other networks to or within respective facilities120A-B ofFIG.1, e.g.). Client device300may also include one or more instances of processing units302, memory304, user inputs308, and display hardware312all interconnected along with the network interface306via a bus316. Memory304generally comprises a random access memory (“RAM”), a read only memory (“ROM”), and a permanent mass storage device, such as a disk drive.

Memory304may likewise contain one or more instances of operating systems310, browsers314(configured to interact with a hosting service214, e.g.), or other local apps324or additional modules or other updates (of operational settings, e.g.) downloaded from a download service224at central facility120A. This can occur, for example, in a context in which such devices300implement an Internet of Things (IoT) hub, for example, or a building-mounted or handheld device. These and other digital components may be loaded from a non-transitory computer readable storage medium318into memory304of the client device300using a drive mechanism (not shown) associated with a non-transitory computer readable storage medium318, such as a floppy disc, tape, DVD/CD-ROM drive, flash card, memory card, or the like. In some embodiments, digital components may also be loaded via the network interface306, rather than via a computer readable storage medium318. Special-purpose circuitry322may, in some variants, include some or all of the event-sequencing logic described below and one or more security features360(e.g. for preventing digital hacks).

Such special-purpose circuitry322may (optionally) be implemented as an Application-Specific Integrated Circuit (ASIC)—in which some or all of the functional modules described below may be implemented. Transistor-based circuitry comprises one or more instances of an event-sequencing structure generally as described in U.S. Pat. Pub. No. 20150094046 but configured as described herein. Circuitry322includes one or more instances of pattern recognition module, for example, each including an electrical node set upon which one or more (instances of) responses, identifiers, descriptions, alarms, or other informational indications are represented digitally as a corresponding voltage configuration. Such modules may include or otherwise interact with one or more cameras or other sensors, moreover, or may implement a Global Positioning System (GPS) tracker by which a mobile device may be located. Moreover one or more such modules may be configured to generate one or more Boolean indications by comparing quantified sensor data or other indications against one or more designer-defined thresholds, all within the abilities of one of ordinary skill without any undue experimentation in light of teachings herein.

In the interest of concision and according to standard usage in information management technologies, the functional attributes of modules described herein are set forth in natural language expressions. It will be understood by those skilled in the art that such expressions (functions or acts recited in English, e.g.) adequately describe structures identified below so that no undue experimentation will be required for their implementation. For example, any records or other informational data identified herein may easily be represented digitally as a voltage configuration on one or more electrical nodes (conductive pads of an integrated circuit, e.g.) of an event-sequencing structure without any undue experimentation. Each electrical node is highly conductive, having a corresponding nominal voltage level that is spatially uniform generally throughout the node (within a device or local system as described herein, e.g.) at relevant times (at clock transitions, e.g.). Such nodes (lines on an integrated circuit or circuit board, e.g.) may each comprise a forked or other signal path adjacent one or more transistors. Moreover many Boolean values (yes-or-no decisions, e.g.) may each be manifested as either a “low” or “high” voltage, for example, according to a complementary metal-oxide-semiconductor (CMOS), emitter-coupled logic (ECL), or other common semiconductor configuration protocol. In some contexts, for example, one skilled in the art will recognize an “electrical node set” as used herein in reference to one or more electrically conductive nodes upon which a voltage configuration (of one voltage at each node, for example, with each voltage characterized as either high or low) manifests a yes/no decision or other digital data.

FIG.4depicts another system400configured to repurpose an indoor space to facilitate exercises performed by one or more users490, optionally as an instance of system100. In some variants the exercise space is bounded by a door405upon which is mounted (a primary member that includes) one or more inelastic straps401in contact with a top421and bottom thereof. In some variants the one or more inclastic straps401as shown may be (1) greater than 3 centimeters in width, (2) about 1 millimeter in thickness486, (3) wrapped diagonally around opposite corners of the door405or vertically, (4) more than 50% woven polymer by weight, or (5) more than one of these. Alternatively or additionally such primary members may each include one or more force-multiplying tightening mechanisms180by which longitudinal leverage115may be artificially amplified, such as with one or more clampable levers181configured to exert a static tension191greater than 20 newtons upon the primary member and thereby upon the top421and bottom of the door405so as to avoid slippage. Moreover when so mounted and pulled (generally laterally, i.e. less than 45 degrees from horizontal) upon via an extension171, a dynamic tension192on the order of 1 kilonewton may be exerted longitudinally (i.e. generally vertically or diagonally within 45 degrees) via the primary member160upon the top421and bottom of the door405.

FIG.5depicts another example of a primary member560usable in system400, optionally as an instance of primary member160, mounted on a door405. Primary member560includes one or more inelastic straps401A in contact with door405. As shown the one or more inelastic straps401A are each greater than 3 centimeters in width and about 1 millimeter in thickness579. Primary member560also includes one or more force-multiplying tightening mechanisms580(on either side of the door405) by which longitudinal leverage115manually exerted by a user490(seeFIG.9) may be artificially amplified (doubled or more, e.g.). As shown a ratcheting lever581may be configured to exert a static tension191greater than 10 newtons upon the primary member560and thereby upon the top and bottom of the door405so as to avoid slippage during use. In some variants, for example, such levers may be configured to engage a ratchet185having a pawl587configured to engage a rotary succession of ten or more teeth588surrounding a gear189, wherein the tightening mechanism180,580is factory-built as a single contiguous hinged force-multiplying assembly having a total mass exceeding 200 grams; and wherein the teeth588are sufficiently numerous so that each is configured to limit (in conjunction with the pawl587a backward rotation of the gear189to an amount less than 45 degrees. This can occur, for example in a context in which the first tightening mechanism180,580is adhered or otherwise affixed to a sponge or other viscoelastic cushion503; in which the cushion503is thick enough to prevent the first tightening mechanism180,580from touching or damaging the door405even when a lateral force of more than 50 newtons exerted upon by an extension171upon the one or more inelastic straps401A is suddenly released (after an exercise, e.g.); and wherein such a massive tightening mechanism180,580would otherwise damage the door405. In some contexts, for example, the cushion503may comprise a viscoelastic layer or a fabric padding layer (or both) having a median thickness577of about 1 millimeter. (As used herein “about” indicates a positive or other numerical difference having a margin of less than 50% unless context dictates otherwise.) Alternatively or additionally, a system100,400as described herein may (optionally) be configured so that all athletic exercises in which primary member560is used are performed with only one strap401A engaging the door405(i.e. with a single inelastic strap401A engaging both the top and bottom of the door).

FIG.6depicts another example of a primary member660usable in system400, optionally as an instance of primary member160. Primary member660includes one or more inelastic straps401A (consisting of a webbing611more than half of which, by weight, is a synthetic polymer such as nylon, e.g.). As shown the one or more inelastic straps401A are each greater than 2.5 centimeters in width and about 1 millimeter in thickness579. Primary member660also includes one or more force-multiplying tightening mechanisms by which longitudinal leverage115manually exerted by a user190,490(seeFIG.9) may be artificially amplified. As shown a lever581,681may be configured to engage a ratchet185having a pawl587configured to engage a rotary succession of numerous teeth surrounding a gear689, wherein the tightening mechanism is built as a single hinged force-multiplying assembly having a total mass exceeding 200 grams; and wherein the teeth are sufficiently numerous so that each is configured to limit (in conjunction with the pawl587a backward rotation of the gear689to an amount less than 45 degrees. This can occur, for example in a context in which all athletic exercises in which primary member660is used are performed without any other mechanical systems (other than hinges) affixed to the door.

FIG.7depicts an acrylic casing796held by user490and suitable for (at least partly) covering primary member660. One or more lips798thereof fit over (a horizontal portion of) lever681as shown.

FIG.8depicts a system400A (as an instance of the system400ofFIG.4, e.g.) configured to repurpose an indoor space to facilitate exercises performed by one or more users490. One or more substantially inelastic straps401thereof are in contact with a top421and bottom of the door405. In addition to one or more features depicted inFIGS.1-6(this instance of) primary member860includes a mounting896having one or more grippers899A-B configured to securely support a mobile client device300A configured to present auditory or visual guidance151-152or to handle other digital information. In soma variants this may include a structured dialog153presenting auditory options and having a limited local vocabulary of less than 100 utterance patterns. This can implement several numbered options recognizable via a speech recognition module (as a component of app324, e.g.) functioning within facility120B, for example, without requiring any remote communication (with device300A in airplane mode, e.g.). Alternatively or additionally such digital information may include safety information154relating to installing system400A or even synchronizing a performance of a series of exercises with auditory or visual guidance while the mobile device300A is mechanically supported by mounting896. This can occur, for example, in a context in which the mobile device300A is supported by the door within a field of view of a user190,490while the user is performing at least one of the exercises (e.g. seeFIG.1,10, or11), in which large horizontal (components of) forces are exerted (as dynamic tension192, e.g.) via one or more extensions171engaging one or more loops109A during the exercises, in which a sudden release of such extension(s)171would—with a more conventional design-result in mobile client device300A suddenly becoming dislodged, and in which such problems are prevented by one or more effective mounting technologies described herein. In a context in which mounting896provides more than 200 grams of ballast, for example by implementing a casing796supporting a heavy-duty ratchet assembly, such ballast may be sufficient to prevent mobile client device300A from becoming dislodged. Alternatively or additionally, such accidents may be prevented in some variants by mounting the mobile client device300A within 30 centimeters of the top421of the door405as shown or by providing one or more supplemental cushions503adjacent the door405(or both).

FIG.9depicts another system400B (as an instance of the system400ofFIG.4, e.g.) configured to repurpose an indoor space to facilitate exercises performed by one or more users490. In addition to one or more features depicted inFIGS.1-8above (this instance of) primary member160,560,660includes a series of several loops109B-D (metal D-rings, e.g.) anchored to the primary member and spanning a vertical range175greater than one meter. As shown the substantially inelastic strap(s)401B of system400B wrap around door405from top921to bottom922. Padding or other cushioning (generally like that ofFIG.5, e.g.) is glued, sewn or otherwise affixed onto the tightening mechanism980, causing the mechanism not to damage the door405even when suddenly released.

FIG.10depicts another system400C (as an instance of the system400ofFIG.4, e.g.) configured to repurpose an indoor space to facilitate exercises performed by one or more users490. In addition to one or more features depicted inFIGS.1-9above (this instance of) primary member160,560,660is attached (via one or more loops109, e.g.) to one or more substantially inelastic extensions171B and supporting the user490while performing an assisted squat.

FIG.11depicts another system400D (as an instance of the system400ofFIG.4, e.g.) configured to repurpose an indoor space to facilitate exercises performed by one or more users490. In addition to one or more method or system features described with reference toFIGS.1-10above (this instance of) primary member160,560,660is attached (via one or more loops109, e.g.) to one or more (nominally) elastic extensions171C and supporting the user490while setting up to perform a woodchopper (exercise). In addition to contemporaneous visual guidance152within a field of view1149of user490during a performance of a particular exercise, in some variants timely prior safety information154may be provided. For example such safety information154may (optionally) include, when first unwrapping elastic extensions171C for use, a warning not to use them for substantially supporting the user490(in an assisted squat, e.g., as shown inFIG.10).

FIG.12depicts a magnified view of the system400D ofFIG.11. As shown a bag1278smaller than 30 centimeters in diameter is configured to contain (some variants of) systems described herein. The containment bag1278with a drawstring1276is (directly or otherwise) attached to a carabiner1274to contain one or more other exercise accessories (extensions171not in use, e.g.). In some variants the entire system400D is prepackaged in such a bag1278before its initial use such that the bag1278and contents thereof weigh less than 20 newtons (i.e. about 4.5 lbs.) in total. This appropriately balances portability with durability in robust variants, for example, (1) in which a contiguous or other metal component of the primary member160,560,660as described herein weighs more than 20% of the total bag and contents, (2) in which a contiguous or other polymer component of the primary member160,560,660weighs more than 30% of the total, (3) in which all of the substantially inelastic straps101,401thereof together weigh more than 40% of the total, (4) in which the primary member160,560,660weighs more than 80% of the total, or (5) more than one of the above. In many contexts such features allow a safe implementation of one or more systems100,400even when configured to facilitate exercise by a user while on a side of the door405(as shown) on which hinges1273of the door405are visible to the user while exercising.

In some variants the bag1278may contain the one or more substantially inelastic straps401, the one or more extensions171, and the force-multiplying tightening mechanism with the bag1278weighing less than 20 newtons. This can occur, for example, in a context in which the one or more straps weigh more than 40% of (a weight of) the total bag and contents (i.e. as a “kit”); in which the primary member weighs more than 80% of (the weight of) the total bag and contents; and in which the kit would otherwise be too heavy or clumsy for travelers or too flimsy for use by adults.

In light of teachings herein, numerous existing techniques may be applied for configuring special-purpose circuitry or other structures effective for facilitating exercise as described herein without undue experimentation. See, e.g., U.S. Pat. No. 9,656,111 (“Climbing wall configuration systems and methods”); U.S. Pat. No. 8,038,581 (“Climbing wall assembly”); U.S. Pat. No. 7,963,368 (“Suspended anchored climbing device with safety features”); U.S. Pat. No. 6,908,418 (“Door mounted deadman for exercise devices”); U.S. Pat. No. 6,322,483 (“Adjustable strap and band exercise device mountable on door”); U.S. Pub. No. 20170348583 (“Wearable technology for enhancing kinesthetic performance”); U.S. Pub. No. 20150099613 (“Wall structure for exercising and attaching fitness and physical activity elements”); U.S. Pub. No. 20130184124 (“Portable modular hanging and pulling system”); and U.S. Pub. No. 20040087420 (“Door/wall/natural structure exerciser anchor”).

With respect to the numbered clauses and claims expressed below, those skilled in the art will appreciate that recited operations therein may generally be performed in any order. Also, although various operational flows are presented in a sequence(s), it should be understood that the various operations may be performed in other orders than those which are illustrated or may be performed concurrently. Examples of such alternate orderings may include overlapping, interleaved, interrupted, reordered, incremental, preparatory, supplemental, simultaneous, reverse, or other variant orderings, unless context dictates otherwise. Furthermore, terms like “responsive to,” “related to,” or other past-tense adjectives are generally not intended to exclude such variants, unless context dictates otherwise. Also in the numbered clauses below, specific combinations of aspects and embodiments are articulated in a shorthand form such that (1) according to respective embodiments, for each instance in which a “component” or other such identifiers appear to be introduced (with “a” or “an,” e.g.) more than once in a given chain of clauses, such designations may either identify the same entity or distinct entities; and (2) what might be called “dependent” clauses below may or may not incorporate, in respective embodiments, the features of “independent” clauses to which they refer or other features described above.

Clauses

1. (Independent) A method for using a system (depicted in one or more ofFIGS.1-12herein, e.g.) to engage a door105,405and thereby to (enable or otherwise) facilitate one or more athletic exercises, the method comprising:positioning one or more substantially inelastic straps101,401wider than 2.5 centimeters in contact with a top121,421,921of and with a bottom122,922of the door105,405, wherein the one or more substantially inelastic straps101,401wider than 2.5 centimeters comprise a primary (assembly or other primary) member160;engaging the one or more substantially inelastic straps101,401with a force-multiplying tightening mechanism180,580adjacent one or more cushions503between the force-multiplying tightening mechanism180,580and the door105,405;actuating the force-multiplying tightening mechanism180,580so as to exert longitudinal leverage115upon the primary (assembly or other primary) member160around the top121,421,921of and the bottom122,922of the door105,405and thereby to exert a static tension191greater than 10 newtons therebetween; andattaching one or more extensions171A-C onto a first loop109,609so as to complete an assembly of the system, wherein the one or more substantially inelastic straps101,401includes a series of several loops109,609at various vertical positions spanning a vertical range175greater than one meter along the one or more substantially inelastic straps101,401and wherein the several loops109at various vertical positions include the first loop109,609.

2. The method of claim1, wherein the force-multiplying tightening mechanism180,580is a single contiguous force-multiplying assembly having a total mass exceeding 200 grams; wherein the one or more cushions503between the force-multiplying tightening mechanism180,580and the door105,405includes a first cushion503; wherein the first tightening mechanism180,580is (adhesed or otherwise) affixed to a first cushion503thick enough to prevent the first tightening mechanism180,580from touching or damaging the door405even after a lateral displacement force of more than 50 newtons exerted via one or more extensions171A-C is suddenly released by a user190,490; and wherein such a massive first tightening mechanism180,580would otherwise damage the door405after being suddenly released.

3. The method of any of the above CLAUSES, wherein a first cushion503of the one or more cushions503comprises a viscoelastic layer.

4. The method of any of the above CLAUSES, wherein a first cushion503of the one or more cushions503comprises a fabric padding layer.

5. The method of any of the above CLAUSES, wherein a first cushion503of the one or more cushions503comprises one or more layers having a median thickness577of at least about 1 millimeter.

6. The method of any of the above CLAUSES, wherein a first cushion503of the one or more cushions503comprises one or more layers having a median thickness577of about 1 millimeter.

7. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises (reps of an assisted squat, e.g.) of the one or more athletic exercises with visual guidance152pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported (directly or otherwise) by the one or more substantially inelastic straps101,401.

8. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with visual guidance152pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a mounting896mechanically supported (directly or otherwise) by the one or more substantially inelastic straps101,401.

9. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with visual guidance152pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a plurality of grippers899of a mounting896mechanically supported by the one or more substantially inelastic straps101,401.

10. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with visual guidance152pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a plurality of grippers899of a mounting896mechanically supported by the one or more substantially inelastic straps101,401, wherein the mounting896is a casing796configured (at least partly) to cover the force-multiplying tightening mechanism180,580.

11. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with visual guidance152pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a plurality of grippers899of a mounting896mechanically supported by the one or more substantially inelastic straps101,401, wherein the mounting896is a casing796configured (at least partly) to cover the force-multiplying tightening mechanism180,580and wherein the mobile device300is within a field of view1149of a user190,490performing the first series of exercises.

12. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises (reps of a wood chopper exercise, e.g.) of the one or more athletic exercises with auditory guidance151pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by the one or more substantially inelastic straps101,401.

13. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with auditory guidance151pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a mounting896mechanically supported by the one or more substantially inelastic straps101,401.

14. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with auditory guidance151pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a plurality of grippers899of a mounting896mechanically supported by the one or more substantially inelastic straps101,401.

15. The method of any of the above CLAUSES, comprising:synchronizing a performance of a first series of exercises of the one or more athletic exercises with auditory guidance151pertaining specifically to the first exercise via a mobile device300while the mobile device300is mechanically supported by a plurality of grippers899of a mounting896mechanically supported by the one or more substantially inelastic straps101,401, wherein the mounting896is a casing796configured (at least partly) to cover the force-multiplying tightening mechanism180,580.

16. The method of any of the above CLAUSES, comprising:performing a first series of closed-chain exercises as a component of the one or more athletic exercises so as to cause dynamic tension192on the order of 1 kilonewton upon the primary (assembly or other primary) member160around the top121,421,921of and the bottom122,922of the door105,405.

17. The method of any of the above CLAUSES, comprising:performing a first series of open-chain exercises as a component of the one or more athletic exercises so as to cause dynamic tension192on the order of 1 kilonewton upon the primary member160and around the top121,421,921of and the bottom122,922of the door105,405.

18. The method of any of the above CLAUSES, wherein the one or more substantially inelastic straps101,401are wider than 3 centimeters.

19. The method of any of the above CLAUSES, wherein at least one of the one or more substantially inelastic straps101,401has a (nominal) thickness579of about 1 millimeter.

20. The method of any of the above CLAUSES, wherein the system100,400is configured so that all athletic exercises in which a primary member560is used are performed with only one strap401A engaging the door405(i.e. with a single inelastic strap401A engaging both the top121and bottom122of the door).

21. The method of any of the above CLAUSES, wherein (at least) the one or more cushions503between the force-multiplying tightening mechanism180,580and the door105,405prevent the force-multiplying tightening mechanism180,580from touching the door105,405and wherein the one or more cushions503are made of padding having a median thickness777greater than 1 millimeter.

22. The method of any of the above CLAUSES, wherein the force-multiplying tightening mechanism180,580comprises one or more levers181, one or more teeth188of one or more gears189, and one or more pawls187configured to engage at least one of the one or more teeth; and wherein at least one of the levers181is configured to advance at least one of the one or more gears189so as to tighten at least one of the one or more substantially inelastic straps101,401and thereby create a static tension191greater than 10 newtons.

23. The method of any of the above CLAUSES, wherein the force-multiplying tightening mechanism180,580comprises one or more levers181configured to engage a ratchet185having a pawl587configured to engage a rotary succession of ten or more teeth588surrounding a gear189; wherein the force-multiplying tightening mechanism180,580is factory-built as a single contiguous hinged force-multiplying assembly having a total mass exceeding 200 grams; and wherein the teeth588are sufficiently numerous so that each is configured to limit (in conjunction with the pawl587) a backward rotation of the gear189to an angular amount less than 45 degrees.

24. The system constructed and arranged according to any of the CLAUSES as described above.

25. The system constructed and arranged according to CLAUSE24, further comprisingone or more substantially inelastic extensions171B configured to support a user490while performing an assisted squat.

26. The system constructed and arranged according to CLAUSE24, further comprisingone or more substantially inelastic extensions171B configured to support a user490while performing an assisted squat, wherein the one or more substantially inelastic extensions171B is an additional substantially inelastic strap (e.g. as depicted inFIG.10).

While various system, method, article of manufacture, or other embodiments or aspects have been disclosed above, also, other combinations of embodiments or aspects will be apparent to those skilled in the art in view of the above disclosure. The various embodiments and aspects disclosed above are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated in the final claim set that follows.