The contribution of the association of isokinetic muscle strengthening exercises in a training protocol for obese women (about 80 cases)
Prof Sameh GHROUBIa, Dr Saoussan MAHERSIa, Dr Wafa ELLEUCHa, Dr Samar ALILAa, Prof Mohamed Habib ELLEUCHa
a Service de Médecine Physique et de Réadaptation, CHU Habib Bourguiba, Sfax, Tunisie, et Unité de recherche de l’évaluation des pathologies de l’appareil locomoteur UR12ES18, université de Sfax
Objective : To evaluate the contribution of combined training protocol involving aerobic exercises associated with the isokinetic strength training in obese women and to compare it to an aerobic training protocol alone.
Patients and Methods: Prospective study including 80 obese patients randomized into two groups: a group of aerobic training (AT) who underwent a training program on treadmill and a group of combined training (CT) who underwent treadmill exercises associated with program of isokinetic strength training of the extensor and flexor muscles of both lower limbs and spine. Evaluation was performed before, one week after, and one year after the end of the protocol. The evaluation comported anthropometric and cardiovascular parameters, muscle strength, dosage of biological parameters and an assessment of psychological status and quality of life.
Results: After rehabilitation, a significantly greater improvement of anthropometric parameters in the CT were noted compared to AT with an improvement of the weighting reduction of 23.82% in the CT versus 12.3% in the AT group (p <0.001) and BMI decrease of 19.07% in the CT versus 11.11% in the AT (p <0.001). The improvement of biological parameters and cardiovascular parameters were also statistically more significant in the RC (p <0.001). In the two groups an amelioration in the peak of torque of both knees and spine extensor and flexor muscles was noted in the three test speeds. This improvement was significantly more important in the RC (p <0.001 ). Also, we found an improvement in psychological status and quality of life in the two groups which was significantly more important in the RC (P <0.001). The improvement of all parameters was maintained at the first year.
Discussion - Conclusion: Several recent publications have recommended the association of aerobic exercises and muscle strengthening in the rehabilitation to effort of obese . However, no study has particularly used isokinetism as means of muscle strengthening.Our study confirmed the beneficial effect of the combination of isokinetic strength training to aerobic training on anthropometric, biological and cardiovascular parameters well as muscle strength in obese women.
-Willis L, Slentz C, Bateman L and al. J Appl Physiol 2012; 113: 1831-1837
Keywords : isokinetic, obese women, muscle strengthening,rehabilitation to effort.