Clinical trial NCT02577653: Posturographic Characteristics of Eccentric, Isometric and Concentric Movements
Official title: Posturographic Characteristics of Eccentric, Isometric and Concentric Movements
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Chronic Pain
Musculoskeletal Pain
Keywords: balance, postural
postural equilibrium
Lead sponsor: Carrick Institute for Graduate Studies
Sponsor class: OTHER
First posted: 2015-10-16
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: BASIC_SCIENCE

Brief summary: Determine the posturographic characteristics of eccentric, isometric and concentric movements in healthy subjects as well as in subjects with chronic, orthopedic conditions / pain not involving the lower extremities. The squatting movement (going down from a stand up position, bending the ankle, knee and hip joints, and then returning to the stand up position, while not lifting the feet from the supporting ground surface) is a simple motion that involves all three types of movements: eccentric (the going down), isometric (holding the down position for a couple of seconds) and concentric (the coming up). It is hypothesized that non-healthy subjects will not have "smooth" movements, and posturography could be used to separate between healthy and non-healthy subjects.

Detailed description: Subjects will undergo Computerized Dynamic Posturography (CDP) testing using the modified Clinical Testing of Sensory Integration in Balance (mCTSIB) protocol: the subjects will be required to stand on a hard or compliant surface (a 4" tall foam cushion of known mechanical properties) in a comfortable posture, feet shoulder width, with eyes open or closed, head straight and arms to the side and free to move, gazing forward, and breathing normally. Subsequently, subjects will be asked to stand first on the right leg and then on the left leg, raising the other leg (flexing the hip about 45 degrees), bending (flexing) the knee 90 degrees, keeping the arms extended and moving them laterally (abduct shoulders to 45 degrees and extend both elbows) to help maintaining balance with eyes open. Finally, subjects will be asked to perform 10 repetition of the squatting movement, with the operator pacing them (telling them when to start and when to stop the movements). The results of the mCTSIB, combined with an initial physical and neurological examination will be used to classify the subjects into the healthy and non healthy group.

Eligibility criteria: Inclusion Criteria:

* subjects with chronic, orthopedic conditions / pain

Exclusion Criteria:

* involving the lower extremities

Primary outcomes:
measure: Stability Score
timeFrame: immediately after data collection
Secondary outcomes:
measure: average velocity moment [mm^2/s]
timeFrame: immediately after data collection
measure: sway path length [mm]
timeFrame: immediately after data collection
measure: frequency content [Hz]
timeFrame: immediately after data collection
Other outcomes:
Locations:
city: Savannah
country: United States
facility: Optim Orthopedics - DeRenne
state: Georgia
Study officials:
affiliation: Carrick Institute for Graduate Studies
name: Frederick R Carrick, PhD
role: PRINCIPAL_INVESTIGATOR
References: