Clinical trial NCT05793242: Immediate and 24-hour Effects of HyperVolt, Body Tempering, and Cupping Compared to Stretching on Hamstring Flexibility
Official title: Immediate and 24-hour Effects of the HyperVolt Device, Body Tempering, and Cupping Compared to Static Stretching of the Hamstring Muscles to Increase Lower Extremity Range of Motion
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Hamstring Contractures
Muscle Tightness
Lead sponsor: University of South Carolina
Sponsor class: OTHER
First posted: 2023-03-31
Enrollment: 80
Sex: ALL
Minimum age (years): 18
Maximum age (years): 39
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to compare the effects of the HyperVolt percussive massage device, body tempering, and dry cupping to static stretching of the hamstrings of healthy adults aged 18-39 years on the active knee extension and back saver sit-and-reach test.While these modalities are frequently used in healthcare settings there is a paucity of research regarding effectiveness. If the effects on flexibility are comparable, patients could save time and money by performing static stretching.

Detailed description: Our study aims to compare the effects of the HyperVolt percussive massage device (HyperVolt), body tempering, and dry cupping compared to static stretching on flexibility and range of motion (ROM), specifically in those with active hamstring ROM limitations. Those individuals from the University of South Carolina community who are interested in becoming study participants will be identified by means of announcements made in the Seminar in Physical Therapy course which is attended by all Physical Therapy students, faculty, and staff each week. Interested individuals will be provided with Dr.Cathy Arnot's email address in order to schedule an evaluation session to determine whether or not they meet the study's inclusion and exclusion criteria. A flyer will also be posted in the Blatt PE Building with Sean Edmonds' contact information included. Interested individuals that contact Sean will be scheduled for screening by Dr.Cathy Arnot. Participants will be assigned to either the HyperVolt percussive massage device (HyperVolt) group, body tempering group, dry cupping group, or static stretching group via blocked randomization for sex and age, with at least twenty participants being placed into each group. The HyperVolt percussive massage group participants will receive a therapist-performed HyperVolt technique for a period of 5 minutes. The body tempering group participants will receive a therapist-performed body tempering technique for a period of 5 minutes. The dry cupping group participants will receive a therapist-performed dry cupping technique for a period of 5 minutes. The static stretch group participants will perform a self-facilitated stretch by looping a strap around the heel of their foot and grasping it with both hands followed by pulling the strap to raise the fully extended leg into hip flexion. The participant will then lift the leg until they reach their maximal tolerable point and then alternate between periods of resting and stretching for a total of 5 minutes. Measurements will be assessed at three time points: Immediately before the intervention, immediately after the intervention, and 24 hours after the intervention.

Eligibility criteria: Inclusion Criteria:

* Shortened hamstring length
* Male participants will display ≤141 degrees of knee extension
* Female participants will display ≤152 degrees of knee extension

Exclusion Criteria:

* history of knee injury
* hypertension
* thrombophlebitis
* inflammation
* myositis ossificans
* osteomyelitis
* open wounds
* unhealed fractures
* hematoma or hemophilia
* pregnancy
* cancer
* burns or skin grafts
* varicose veins
* synovitis
* currently taking any anticoagulation medications
* rheumatoid arthritis
* osteoporosis
* any other condition that would prevent safe participation

Primary outcomes:
measure: Active Knee Extension Test (AKE)
timeFrame: Immediately after intervention
measure: Active Knee Extension Test (AKE)
timeFrame: 24 hours after the intervention
measure: Back-Saver Sit-and-Reach Test
timeFrame: Immediately after intervention
measure: Back-Saver Sit-and-Reach Test
timeFrame: 24 hours after the intervention
Secondary outcomes:
Other outcomes:
Locations:
city: Columbia
country: United States
facility: University of South Carolina
state: South Carolina
Study officials:
affiliation: University of South Carolina
name: Cathy F Arnot, DPT
role: STUDY_DIRECTOR
References:
citation: Blazevich AJ, Gill ND, Kvorning T, Kay AD, Goh AG, Hilton B, Drinkwater EJ, Behm DG. No Effect of Muscle Stretching within a Full, Dynamic Warm-up on Athletic Performance. Med Sci Sports Exerc. 2018 Jun;50(6):1258-1266. doi: 10.1249/MSS.0000000000001539.
citation: Aguilar AJ, DiStefano LJ, Brown CN, Herman DC, Guskiewicz KM, Padua DA. A dynamic warm-up model increases quadriceps strength and hamstring flexibility. J Strength Cond Res. 2012 Apr;26(4):1130-41. doi: 10.1519/JSC.0b013e31822e58b6.
citation: Konrad A, Glashuttner C, Reiner MM, Bernsteiner D, Tilp M. The Acute Effects of a Percussive Massage Treatment with a Hypervolt Device on Plantar Flexor Muscles' Range of Motion and Performance. J Sports Sci Med. 2020 Nov 19;19(4):690-694. eCollection 2020 Dec.
citation: Taber CB, Colter RJ, Davis JJ, Seweje PA, Wilson DP, Foster JZ, Merrigan JJ. The Effects of Body Tempering on Force Production, Flexibility and Muscle Soreness in Collegiate Football Athletes. J Funct Morphol Kinesiol. 2022 Jan 11;7(1):9. doi: 10.3390/jfmk7010009.
citation: Williams JG, Gard HI, Gregory JM, Gibson A, Austin J. The Effects of Cupping on Hamstring Flexibility in College Soccer Players. J Sport Rehabil. 2019 May 1;28(4):350-353. doi: 10.1123/jsr.2017-0199. Epub 2018 Dec 4.
citation: Gunn LJ, Stewart JC, Morgan B, Metts ST, Magnuson JM, Iglowski NJ, Fritz SL, Arnot C. Instrument-assisted soft tissue mobilization and proprioceptive neuromuscular facilitation techniques improve hamstring flexibility better than static stretching alone: a randomized clinical trial. J Man Manip Ther. 2019 Feb;27(1):15-23. doi: 10.1080/10669817.2018.1475693. Epub 2018 Aug 1.