Serious adverse events were rare , and no serious events were reported to be directly related to the exercise programme .
This review provides evidence that PRT is an effective intervention for improving physical functioning in  older people , including improving strength and the performance of some simple and complex activities .
BACKGROUND Muscle weakness in old age is associated with physical function decline .
Progressive resistance strength training ( PRT ) exercises are design ed to increase strength .
OBJECTIVES To assess the effects of PRT on older people and identify adverse events .
Effect of high-intensity strength-training on functional measures of balance ability in balance-impaired older adults.
OBJECTIVE The aim of this study was to evaluate the effect of a 10-week , high-intensity strength-training program targeting key lower extremity muscles for the purpose of improving postural control in balance-impaired older adults . METHODS A quasi-experimental , delayed entry controlled design was used to evaluate balance ability in balance-impaired older adults after participation in 10 weeks of high-intensity strength training focused on the quadriceps , hamstrings , tibialis anterior , and gastrocnemius muscles . Participants were evaluated using vali date d clinical measures of functional balance ability : the Berg Balance Scale , the Timed Up and Go , and the Activities-Specific Balance Confidence Scale . RESULTS After strength training , the exercisers were significantly stronger than the control subjects . They improved significantly on the Berg Balance Scale ( P = .030 ) from a mean score of 48.8 + /- 2.4 of 56 before training to 51.2 + /- 4.3 of 56 after training . The Timed Up and Go ( P = .045 ) and the Activities-Specific Balance Confidence Scale ( P = .038 ) also improved significantly in the experimental group . These changes are associated with a decrease in fall risk . CONCLUSIONS High-intensity strength training can safely and effectively strengthen lower extremity muscles in balance-impaired older adults , result ing in significant improvements in functional balance ability and decreased fall risk
Serious adverse events were rare , and no serious events were reported to be directly related to the exercise programme .
This review provides evidence that PRT is an effective intervention for improving physical functioning in  older people , including improving strength and the performance of some simple and complex activities .
BACKGROUND Muscle weakness in old age is associated with physical function decline .
Progressive resistance strength training ( PRT ) exercises are design ed to increase strength .
OBJECTIVES To assess the effects of PRT on older people and identify adverse events .