Gender variability in electromyographic activity, invivo behaviour of the human gastrocnemius and mechanical capacity during the take-off phase of a countermovement jump

被引:7
作者
Angel Rubio-Arias, Jacobo [1 ,2 ,3 ]
Jesus Ramos-Campo, Domingo [1 ,2 ,3 ]
Pena Amaro, Jose [4 ]
Esteban, Paula [3 ]
Mendizabal, Susana [3 ]
Fernando Jimenez, Jose [3 ]
机构
[1] Catholic Univ San Antonio, UCAM, Fac Sports, Dept Phys Act & Sports Sci, Murcia, Spain
[2] Catholic Univ San Antonio, UCAM, Res Ctr High Performance Sport, Murcia, Spain
[3] Univ Castilla La Mancha, Fac Phys Act & Sports Sci, Dept Sports Sci & Phys Act, Performance & Sport Rehabil Lab, Toledo, Spain
[4] Univ Cordoba, Fac Med, Maimonides Inst Biomed Res IMIBIC, Histol Sect,Dept Morphol Sci, Cordoba, Spain
关键词
countermovement jump; ground reaction forces; muscle performance; muscular architecture; surface electromyography; SHORTENING CYCLE EXERCISE; MYOELECTRICAL POTENTIATION; MUSCLE ARCHITECTURE; SEX-DIFFERENCES; ELASTIC ENERGY; TRICEPS SURAE; SURFACE EMG; SQUAT JUMP; STRENGTH; MEN;
D O I
10.1111/cpf.12369
中图分类号
Q4 [生理学];
学科分类号
071003 [生理学];
摘要
Purpose: The purpose of this study was to analyse gender differences in neuromuscular behaviour of the gastrocnemius and vastus lateralis during the take-off phase of a countermovement jump (CMJ), using direct measures (ground reaction forces, muscle activity and dynamic ultrasound). Methods: Sixty-four young adults (aged 18-25 years) participated voluntarily in this study, 35 men and 29 women. The firing of the trigger allowed obtainment of data collection vertical ground reaction forces (GRF), surface electromyography activity (sEMG) and dynamic ultrasound gastrocnemius of both legs. Results: Statistically significant gender differences were observed in the jump performance, which appear to be based on differences in muscle architecture and the electrical activation of the gastrocnemius muscles and vastus lateralis. So while men developed greater peak power, velocity take-offs and jump heights, jump kinetics compared to women, women also required a higher electrical activity to develop lower power values. Additionally, the men had higher values pennation angles and muscle thickness than women. Conclusion: Men show higher performance of the jump test than women, due to significant statistical differences in the values of muscle architecture (pennation angle and thickness muscle), lower Neural Efficiency Index and a higher amount of sEMG activity per second during the take-off phase of a CMJ.
引用
收藏
页码:741 / 749
页数:9
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