Gallego-Pérez Anabel, Benito-Martínez Elisa, Alonso-Cortés Fradejas Beatriz
San Juan de Dios Foundation, 28016 Madrid, Spain.
Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28350 Madrid, Spain.
Bioengineering (Basel). 2025 Jul 16;12(7):767. doi: 10.3390/bioengineering12070767.
Studying normative values for muscle activation in the vastus lateralis (VL), vastus medialis (VM), and biceps femoris (BF), as well as the hamstrings/quadriceps (H:Q) ratio during the Countermovement Jump (CMJ). Determine whether there were differences between the CMJ and the trial of 5 consecutive CMJs (5 CMJ) and between the take-off and landing phases. A cross-sectional descriptive study. Thirty-one participants (20 females and 11 males, 22.52 ± 3.295 years, BMI 24.32, weight 58.23 ± 4.32 Surface electromyography has been used to determine muscle activation during the CMJ and 5 CMJ. Muscle activation in the VL, VM, and BF, as well as the hamstrings/quadriceps ratio in take-off and landing phases of the CMJ and 5 CMJ. The results show normative values in the VL, VM, and BF during both the CMJ and 5 CMJ, with the exception of the BF during the landing phase of the 5 CMJ. In conclusion, the activation in the take-off phase of the VM and VL is greater than during the landing phase. The BF shows similar activation in both the take-off and landing phases. The 5 CMJ does not induce greater muscular fatigue than the CMJ.
研究在反向纵跳（CMJ）过程中股外侧肌（VL）、股内侧肌（VM）和股二头肌（BF）的肌肉激活规范值，以及腘绳肌/股四头肌（H:Q）比率。确定CMJ与连续5次CMJ试验（5 CMJ）之间以及起跳和着陆阶段之间是否存在差异。一项横断面描述性研究。31名参与者（20名女性和11名男性，年龄22.52±3.295岁，BMI 24.32，体重58.23±4.32）。表面肌电图已用于确定CMJ和5 CMJ期间的肌肉激活情况。CMJ和5 CMJ的起跳和着陆阶段VL、VM和BF的肌肉激活情况以及腘绳肌/股四头肌比率。结果显示了CMJ和5 CMJ期间VL、VM和BF的规范值，但5 CMJ着陆阶段的BF除外。总之，VM和VL起跳阶段的激活大于着陆阶段。BF在起跳和着陆阶段显示出相似的激活。5 CMJ不会比CMJ引起更大的肌肉疲劳。
