Title | Validity of the Instrumented Push and Release Test to Quantify Postural Responses in Persons With Multiple Sclerosis. |
Publication Type | Journal Article |
Year of Publication | 2017 |
Authors | El-Gohary M, Peterson D, Gera G, Horak FB, Huisinga JM |
Journal | Arch Phys Med Rehabil |
Volume | 98 |
Issue | 7 |
Pagination | 1325-1331 |
Date Published | 2017 07 |
ISSN | 1532-821X |
Keywords | Actigraphy, Adult, Cross-Sectional Studies, Female, Foot, Humans, Lumbar Vertebrae, Male, Middle Aged, Multiple Sclerosis, Physical Therapy Modalities, Postural Balance, Walking |
Abstract | OBJECTIVE: To test the validity of wearable inertial sensors to provide objective measures of postural stepping responses to the push and release clinical test in people with multiple sclerosis. DESIGN: Cross-sectional study. SETTING: University medical center balance disorder laboratory. PARTICIPANTS: Total sample N=73; persons with multiple sclerosis (PwMS) n=52; healthy controls n=21. MAIN OUTCOME MEASURES: Stepping latency, time and number of steps required to reach stability, and initial step length were calculated using 3 inertial measurement units placed on participants' lumbar spine and feet. RESULTS: Correlations between inertial sensor measures and measures obtained from the laboratory-based systems were moderate to strong and statistically significant for all variables: time to release (r=.992), latency (r=.655), time to stability (r=.847), time of first heel strike (r=.665), number of steps (r=.825), and first step length (r=.592). Compared with healthy controls, PwMS demonstrated a longer time to stability and required a larger number of steps to reach stability. CONCLUSIONS: The instrumented push and release test is a valid measure of postural responses in PwMS and could be used as a clinical outcome measures for patient care decisions or for clinical trials aimed at improving postural control in PwMS. |
DOI | 10.1016/j.apmr.2017.01.030 |
Alternate Journal | Arch Phys Med Rehabil |
PubMed ID | 28279660 |
PubMed Central ID | PMC5558828 |
Grant List | KL2 TR000119 / TR / NCATS NIH HHS / United States L30 HD070256 / HD / NICHD NIH HHS / United States R01 AG006457 / AG / NIA NIH HHS / United States |