The trunk extensor flexor relationship in men and women by isokinetic dynamometry
Simbala, Marcia; Czaikoski, Camila Ksaveria; Eduardo, Fernanda Maria Cercal; Moser, Auristela Duarte de Lima; Bernardelli, Rafaella Stradiotto
Abstract
Introduction: The thoracolumbar musculature plays a key role in the balance and stability of the pelvis. The isokinetic dynamometer provides accurate assessment of muscle performance and treatment guidance. Objective: To compare the flexors / extensors of the trunk link between sedentary men and women, asymptomatic by isokinetic dynamometry. Method: An observational cross-sectional study. The sample consisted of 100 asymptomatic sedentary volunteers, 50 males and 50 females with a mean age of 22.2 ± 3.3 years. The collection was made in the center of isokinetic dynamometry of the university grew. The Cybex Norm isokinetic dynamometer Model 7000 TM, trunk module was used. The subjects were weighed and measured, made global warming a 5 minutes cycle ergometer unloaded. Tested the flexor and extensor muscles in concentric and eccentric contractions, with an interval of three minutes between each assessment. We adopted a range of 10 degrees of extension to 70 degrees of flexion, with five repetitions at angular velocity 60 ͨ / s performing maximal strength. Familiarity with the equipment was done in the way of submaximal intensity contraction. The analysis was performed using SPSS, version 20.0 (p <0.05). Results: muscle ratio for females was higher compared to males, demonstrating in men greater deficit flexors compared to extensors of the trunk. Conclusion: no significant neither for females nor for males difference. Confirming that the ratio of muscle strength agonist/antagonist of a joint should not change regardless of the mode of contraction is tested.
Keywords
References
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