Document Type : Research Paper
Authors
Abstract
The aim of this study was to investigate the effect of 8 weeks resistance training accompany with Omega_3 fatty acid supplement on muscle strength, aerobic endurance and body composition of healthy elderly women. Twenty-four elderly women (mean±SD; age: 79.6 ± 4.2 y, height 151.7± 4.2cm, weight 60.8±7.8kg) were selected and randomly divided into 3 groups, resistance training, resistance training accompany with Omega_3 fatty acid supplement and control groups. The subjects in resistance training group performed resistance training for duration of 8 weeks by 60 to 80 percent 1 RM. The subjects of resistance training accompany with Omega_3 fatty acid group in addition to resistance training consumed Omega_3 fatty acid supplement 3 gram daily, but the subjects in the control group didn't receive any treatment. Strength of upper extremities (left and right hand), lower extremities strength, aerobic endurance and body composition were evaluated before and after 8 weeks training program. Data were analyzed using dependent t- test, variance analysis and Tukey's test (P ≤ 0.05). After 8 weeks, a significant difference (P<0.05) was observed in upper extremities strength, lower extremities strength among 3 groups, as resistance training group and resistance training accompany with Omega_3 fatty acid supplement group had more strength than control group. In addition to this, the resistance training accompany with Omega_3 fatty acid group were stronger than resistance training. Regarding aerobic endurance similar results were observed. In relation to body compositions, a significant decrease of waist hip ratio in resistance training accompany with Omega_3 fatty acid supplement group was found. Same results were observed for BMI. It can be concluded that the resistance training along with Omega_3 fatty acid supplement have more effect on muscle strength, aerobic endurance and body compositions of healthy elderly women, therefore, to improve performance of healthy elderly women, resistance training accompany with consuming Omega_3 fatty supplement are recommended.
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