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 resistance training on immunological parameters of healthy elderly women.
PURPOSE To determine the effect of a 12-month moderate resistance training program on phenotypic and functional immunological parameters of previously sedentary , clinical ly healthy , elderly women . METHODS A total of 42 clinical ly healthy , sedentary females ( aged 60 - 77 yr old ) were r and omly assigned to either a moderate-intensity resistance training program or a control group during a 12-month longitudinal , r and omized , controlled , intervention study . Resistance training program consisted of three sets of 12 repetitions at 54.9 + /- 2.4 % 1RM for five different exercises performed three times per week during 12 months . Natural killer cell cytotoxic activity ( NKCA ) , lymphoproliferative response to the mitogen phytohemaglutinin ( PHA ) , and quantification of the lymphocytes ( CD3 , CD3CD19 , CD56 ) and sub population s ( CD4 , CD8 , CD56 , CD56 ) as well as cellular expression molecules ( CD25 , CD28 , CD45RA , CD45RO , CD69 , CD95 , HLA-DR ) were determined by immunological assays . RESULTS The experimental group increased muscle strength in 44 % and 48 % after 6 and 12 months , respectively ( P < 0.05 ) . There were no statistically significant differences between the groups or according to the time for quantitative ( CD3 , CD3CD19 , CD56 , CD4 , CD8 , CD45RA , CD45RO , CD56 , CD56 , CD95 , CD28 , CD25 , CD69 , HLA-DR ) and functional immunological parameters ( natural killer cell cytotoxic activity and lymphoproliferative response ) . CONCLUSION A 12-month moderate resistance training program increases muscle strength , but it does not change immune phenotypic and functional parameters of previously sedentary , clinical ly healthy , elderly women
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 .