Resistance training increased 6-minute walk distance compared to no training , but had no other benefits on cardiac function , exercise capacity , or quality of life if used alone or as an adjunct to aerobic training in people with chronic heart failure .
QUESTION Does resistance training , either alone or as an adjunct to aerobic training , improve cardiac function , exercise capacity and quality of life in people with chronic heart failure ?
High intensity knee extensor training, in patients with chronic heart failure. Major skeletal muscle improvement.
Skeletal muscle adaptations to high intensity knee extensor strength and /or endurance training in patients with chronic heart failure were investigated . Eleven patients with chronic heart failure were r and omized into two groups and exercised the m. quadriceps femoris 3 days/week for 8 weeks . After training , the maximal exercise intensity tolerated on the ergometer cycle was raised from 99 ( 32 ) to 114 ( 40 ) watts ( W , P < 0.05 ) for all 11 patients . Peak dynamic knee extensor work rate showed the greatest increase after endurance training ( 40 % , P < 0.01 ) . Maximal dynamic and isometric strength were elevated by 40 - 45 % ( P < 0.05 ) after strength training . The cross-sectional area of m. quadriceps femoris was increased in the strength-trained legs ( 9 % , P < 0.05 ) , and the capillary per fibre ratio of m. vastus lateralis was raised by 47 and 58 % in the endurance-trained legs ( P < 0.05 ) . The oxidative enzyme activity in m. vastus lateralis was significantly raised above 50 % after endurance training , whereas glycolytic enzyme activity was unaltered . The peripheral skeletal musculature in patients with chronic heart failure adapts fairly quickly to high intensity knee extensor training . This results in a marked rise in local , and a small rise in total work capacity , indicating maintained plasticity of skeletal muscle in chronic heart failure patients
Resistance training increased 6-minute walk distance compared to no training , but had no other benefits on cardiac function , exercise capacity , or quality of life if used alone or as an adjunct to aerobic training in people with chronic heart failure .
QUESTION Does resistance training , either alone or as an adjunct to aerobic training , improve cardiac function , exercise capacity and quality of life in people with chronic heart failure ?