Finally , muscle power testing was found to be safe in older people with a broad range of health and functional states
Background Muscle power has been proposed to be the primary therapeutic target for resistance training interventions aim ed at enhancing physical function in older adults .
However , no recommendations exist on ideal testing protocol s to assess muscle power in older adults , and the safety of this procedure has not been adequately evaluated in the literature .
Methods A systematic review was conducted to identify studies evaluating muscle power exerted by older people in resistance exercises through May 2017 .
Increased trunk extension endurance is associated with meaningful improvement in balance among older adults with mobility problems.
OBJECTIVE To determine whether trunk extension endurance changes with training are associated with clinical ly meaningful improvements in balance among mobility-limited older adults . DESIGN Longitudinal data from a r and omized controlled trial . SETTING Outpatient rehabilitation research center . PARTICIPANTS Community-dwelling older adults ( N=64 ; mean age , 75.9y ) with mobility limitations as defined by a score of 4 to 10 on the Short Physical Performance Battery . INTERVENTIONS Sixteen weeks of progressive resistance training . MAIN OUTCOME MEASURES Outcomes were the Berg Balance Scale ( BBS ) and the Unipedal Stance Time ( UST ) . Predictors included leg strength , leg power , trunk extension endurance , and the product of heart rate and blood pressure ( RPP ) at the final stage of an exercise tolerance test . We performed an analysis of data from participants who completed 16 weeks of training by using binary outcomes defined by a clinical ly meaningful change ( CMC ) from baseline to completion of the intervention ( BBS=4 units ; UST=5s ) . The association of predictor variables with balance outcomes was examined separately and together in multivariate adjusted logistic regression models . RESULTS Trunk extension endurance in seconds ( 1.04 [ 1.00 - 1.09 ] ) was independently associated with CMC on the BBS . Trunk extension endurance ( 1.02 [ 1.00 - 1.03 ] ) was independently associated with CMC on the UST . Other physical attributes were not associated with meaningful change in balance . CONCLUSIONS Improvements in trunk extension endurance were independently associated with CMCs in balance in older adults . Leg strength , leg power , and RPP were not associated with CMC in balance . Poor trunk extension endurance may be a rehabilitative impairment worthy of further study as a modifiable factor linked to balance among older adults
Finally , muscle power testing was found to be safe in older people with a broad range of health and functional states
Background Muscle power has been proposed to be the primary therapeutic target for resistance training interventions aim ed at enhancing physical function in older adults .
However , no recommendations exist on ideal testing protocol s to assess muscle power in older adults , and the safety of this procedure has not been adequately evaluated in the literature .
Methods A systematic review was conducted to identify studies evaluating muscle power exerted by older people in resistance exercises through May 2017 .