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 .
Cost-effectiveness of aerobic and resistance exercise in seniors with knee osteoarthritis.
PURPOSE The purpose of this study was to determine , in a r and omized clinical trial of 439 individuals with knee osteoarthritis , the incremental cost-effectiveness of aerobic versus weight resistance training , compared with an education control intervention . METHODS Cost estimates of the intervention were based upon the cost of purchasing from the community similar services to provide exercise or health education . Effect at 18 months was measured using several variables , including : self-reported disability score , 6-min walking distance , stair climb , lifting and carrying task , car task , and measures of pain frequency and pain intensity on ambulation and transfer . RESULTS The total cost of the educational intervention was $ 343.98 per participant . The aerobic exercise intervention cost $ 323.55 per participant , and the resistance training intervention cost $ 325.20 per participant . On all but two of the outcome variables , the incremental savings per incremental effect for the resistance exercise group was greater than for the aerobic exercise group . CONCLUSION The data obtained from this study suggest that , compared with an education control , resistance training for seniors with knee osteoarthritis is more economically efficient than aerobic exercise in improving physical function . However , the magnitude of the difference in efficiency between the two approaches is small
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 .