Contribution of isokinetic muscle strengthening in the rehabilitation of obese subjects.

Abstract Aims Our objective was to evaluate the specific effect of isokinetic muscle strength enhancement in the rehabilitation of obese subjects by comparing two groups (isokinetic muscle exercising associated with aerobic exercising or only aerobic exercising). Patients and methods This was a randomized, prospective study from January 2008 to December 2009 involving 40 obese patients randomized into two groups. The first group G1 ( n  = 20) followed a program of aerobic training and isokinetic exercising of the extensor and flexor muscles of lower limbs and spine. The second group G2 ( n  = 20) followed only a program of aerobic exercising. All patients completed their rehabilitation protocols comprising 3 sessions per week for two months. The parameters evaluated before and after the program were anthropometric parameters (weight, stature, body mass index, body fat and lean body mass percentages), cardiovascular parameters by stress test on electromagnetic ergo-cycle, an assessment of muscle strength by isokinetic dynamometer and an assessment of psychological status and quality of life. Results We recruited 36 women and 4 men. Initially, the 2 groups were comparable. After training, in both groups we noted an improvement in anthropometric parameters, with an average weight loss of 1.83 kg/week ( P P P Conclusion Isokinetic muscle strengthening increases the effects of aerobic exercising in the obese by improving muscle strength, increasing lean body mass and reducing body fat.