Posturographic Characteristics of Eccentric, Isometric and Concentric Movements

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.

Study Overview

• Status: Withdrawn
• Conditions: Musculoskeletal Pain; Chronic Pain
• Intervention / Treatment: Other: Posturographic evaluation

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.

• Study Type: Interventional
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Georgia
    • Savannah, Georgia, United States, 31405
      • Optim Orthopedics - DeRenne

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• subjects with chronic, orthopedic conditions / pain

Exclusion Criteria:

• involving the lower extremities

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Other: subjects; participant undergoing posturographic evaluation

Other: Posturographic evaluation; Subjects will undergo CDP testing using the modified Clinical Testing of Sensory Integration in Balance (mCTSIB) protocol. Subsequently, subjects will be asked to stand first on the right leg and then on the left leg 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).

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Stability Score	The Stability Score (calculated as percentage ratio of the actual sway and the theoretical limit of stability) will be used to investigate if there is any difference between healthy controls and subjects affected by chronic pain not involving the lower extremities. Statistical tools such t-tests and correlation coefficients will be used for assess if there is a difference between the two groups	immediately after data collection

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
average velocity moment [mm^2/s]	The average velocity moment (calculated as as the product of sway velocity path length) will be used to investigate if there is any difference between healthy controls and subjects affected by chronic pain not involving the lower extremities. Statistical tools such t-tests and correlation coefficients will be used for assess if there is a difference between the two groups	immediately after data collection
sway path length [mm]	The sway path length (the distance traveled during the test) will be used to investigate if there is any difference between healthy controls and subjects affected by chronic pain not involving the lower extremities. Statistical tools such t-tests and correlation coefficients will be used for assess if there is a difference between the two groups	immediately after data collection
frequency content [Hz]	The frequency content (calculated using FFT) will be used to investigate if there is any difference between healthy controls and subjects affected by chronic pain not involving the lower extremities. Statistical tools such t-tests and correlation coefficients will be used for assess if there is a difference between the two groups	immediately after data collection

Collaborators and Investigators

• Sponsor: Carrick Institute for Graduate Studies

Study record dates

Study Major Dates

• Study Start: October 1, 2015
• Primary Completion (Actual): January 1, 2017
• Study Completion (Actual): January 1, 2017

Study Registration Dates

• First Submitted: October 2, 2015
• First Submitted That Met QC Criteria: October 14, 2015
• First Posted (Estimate): October 16, 2015

Study Record Updates

• Last Update Posted (Actual): February 20, 2017
• Last Update Submitted That Met QC Criteria: February 16, 2017
• Last Verified: February 1, 2017

More Information

Terms related to this study

• Keywords: balance, postural; postural equilibrium
• Additional Relevant MeSH Terms: Pain; Neurologic Manifestations; Musculoskeletal Diseases; Muscular Diseases; Chronic Pain; Musculoskeletal Pain
• Other Study ID Numbers: CI-IRB-20150818005