Kathleen A Bieryla1, Michael L Madigan. 1. Department of Biomedical Engineering, Bucknell University, 701 Moore Avenue, Lewisburg, PA 17837, USA. k.bieryla@bucknell.edu
Abstract
OBJECTIVE: To investigate the efficacy of perturbation-based balance training (PBBT) on time to stabilization (TTS) after a nonstepping response to a postural perturbation in older adults at a high risk for falls. DESIGN: Single-subject design. Participants completed 4 baseline tests, 1 month of PBBT, and posttraining tests both 1 week and 1 month after training. SETTING: Assisted-living facility. PARTICIPANTS: Older adults (N=5; mean ± SD age, 85±6.5y; residents of assisted-living facility) at a high risk for falls. INTERVENTION: PBBT involved 3 sessions a week for 4 weeks. Each session involved standing for 50 trials on a pneumatic instrumented moving platform that translated 0 to 0.08m forward or 0 to 0.13m backward in approximately 390ms (average velocity, 0.25m/s). MAIN OUTCOME MEASURES: Time to stabilization of center of pressure (COP) after a perturbation on the moving platform. RESULTS: TTS of COP was 41.6% shorter than baseline tests (P<.001) 1 week after completing PBBT and 46.3% shorter than baseline tests (P<.001) 1 month after completing PBBT. CONCLUSIONS: PBBT improved TTS after a postural perturbation in older adults at a high risk for falls, and these improvements were retained for 1 month.
OBJECTIVE: To investigate the efficacy of perturbation-based balance training (PBBT) on time to stabilization (TTS) after a nonstepping response to a postural perturbation in older adults at a high risk for falls. DESIGN: Single-subject design. Participants completed 4 baseline tests, 1 month of PBBT, and posttraining tests both 1 week and 1 month after training. SETTING: Assisted-living facility. PARTICIPANTS: Older adults (N=5; mean ± SD age, 85±6.5y; residents of assisted-living facility) at a high risk for falls. INTERVENTION: PBBT involved 3 sessions a week for 4 weeks. Each session involved standing for 50 trials on a pneumatic instrumented moving platform that translated 0 to 0.08m forward or 0 to 0.13m backward in approximately 390ms (average velocity, 0.25m/s). MAIN OUTCOME MEASURES: Time to stabilization of center of pressure (COP) after a perturbation on the moving platform. RESULTS:TTS of COP was 41.6% shorter than baseline tests (P<.001) 1 week after completing PBBT and 46.3% shorter than baseline tests (P<.001) 1 month after completing PBBT. CONCLUSIONS:PBBT improved TTS after a postural perturbation in older adults at a high risk for falls, and these improvements were retained for 1 month.
Authors: Jon D Lurie; Alexandra B Zagaria; Lisa Ellis; Dawna Pidgeon; Kathleen M Gill-Body; Christina Burke; Kurt Armbrust; Sharil Cass; Kevin F Spratt; Christine M McDonough Journal: Phys Ther Date: 2020-07-19
Authors: Anne Krause; Kathrin Freyler; Albert Gollhofer; Thomas Stocker; Uli Brüderlin; Ralf Colin; Harald Töpfer; Ramona Ritzmann Journal: Front Physiol Date: 2018-08-07 Impact factor: 4.566