The Effect of Six Weeks of Trampoline Training on Balance and Leg Muscle Strength in Obese and Overweight Women

Document Type : Original Articles




Introduction: Imbalance is one of the common problems in overweight people; disproportionate exercise may increase the risk of injury in these people. Trampoline exercises are one of the highly safe exercises; therefore, the purpose of this research was to investigate the effect of six weeks of trampoline training on balance and leg muscle strength in obese and overweight women.
Materials and Methods: For this semi-experimental pre-post study the target population were all 16-23 years old inactive, obese or overweight women (BMI ≥ 27.5 kg/m2) living in Zahedan city in 1401 among which 20 volunteers met inclusion criteria and were divided into equal experimental and control groups.They were evaluated by static, and dynamic balance and quadriceps strength tests. The experimental group took part in trampoline exercises for 6 weeks, 4 sessions per week. 1.5 hours per session; 48 hours after the last exercise session, a post-test was taken from both groups in the same conditions as the pre-test stage. Statistical analysis was performed using paired t tests, independent t tests and ANCOVA tests at significance level 0.05.
Results: The results showed that there was no significant difference between the pre- and post-test results of the experimental group in static balance (P = 0.12), although dynamic balance (P=0.04) and quadriceps muscle strength (P = 0.03) significantly improved. Also, between-group comparison revealed no significant difference in static balance (P = 0.10); the experimental group showed significantly better  values of dynamic balance (P = 0.03) and quadriceps muscle strength (P = 0.04) v.s. the control group.
Conclusion: it seems that trampoline exercises increased dynamic balance and strength of quadriceps muscles in obese and overweight women.