Sekine Yuta, Hirose Norikazu
Nippon Sport Science University, Faculty of Sport Science, 7-1-1, Fukasawa, Setagaya-ku, 158-0081, Tokyo, Japan.
Waseda University, Graduate School of Sport Sciences, 2-579-15, Mikajima, Tokorozawa, 359-1192, Saitama, Japan.
Int J Adolesc Med Health. 2017 Nov 23;32(2):/j/ijamh.2020.32.issue-2/ijamh-2017-0117/ijamh-2017-0117.xml. doi: 10.1515/ijamh-2017-0117.
Background This study examines age-related changes in the quadriceps femoris (QF), subdivided into the vastus medialis oblique (VMO), vastus medialis (VM), rectus femoris (RF), vastus intermedius (VI) and vastus lateralis (VL) in basketball players. Subjects Seventy male basketball players were divided into four groups according to age (12-13, 14-15, 16-17, and 18-20 years). Methods Ultrasonography was used to measure muscle architecture of the VMO, VM, RF, VI and VL. We created cubic approximate expressions and calculated inflexion points to evaluate peak growth age of each muscle head. Results Significant interactions were observed for all QF parts (p < 0.01-0.001). Muscle thickness (MT) in all QF parts was significantly lower in 12-13-year olds than in 18-20-year olds (p < 0.01-0.001). Significant differences were recognised between 12-13 and 16-17-year olds in VM (p < 0.001), RF (p < 0.001) and VL (p = 0.007). MT was significantly lower in 14-15-year olds than in 16-17-year olds in the VM (p = 0.007) and RF (p = 0.026) and in 18-20 year olds in the VM (p < 0.001), RF (p = 0.036) and VI (p < 0.001). Peak growth age was estimated for each QF part (VMO, 155.0 months; VM, 187.8 months; RF, 212.2 months, VI, 188.9 months; VL, 181.1 months). Conclusion QF parts have different growth rates due to differing functions in each muscle head.
背景 本研究调查了篮球运动员股四头肌（QF）各部分与年龄相关的变化，股四头肌分为股内侧斜肌（VMO）、股内侧肌（VM）、股直肌（RF）、股中间肌（VI）和股外侧肌（VL）。
受试者 70 名男性篮球运动员按年龄分为四组（12 - 13岁、14 - 15岁、16 - 17岁和18 - 20岁）。
方法 采用超声测量VMO、VM、RF、VI和VL的肌肉结构。我们创建了三次近似表达式并计算拐点，以评估每个肌头的生长高峰期年龄。
结果 在所有股四头肌部分均观察到显著的交互作用（p < 0.01 - 0.001）。12 - 13岁组所有股四头肌部分的肌肉厚度（MT）均显著低于18 - 20岁组（p < 0.01 - 0.001）。在VM（p < 0.001）、RF（p < 0.001）和VL（p = 0.007）方面，12 - 13岁组与16 - 17岁组之间存在显著差异。在VM（p = 0.007）和RF（p = 0.026）方面，14 - 15岁组的MT显著低于16 - 17岁组；在VM（p < 0.001）、RF（p = 0.036）和VI（p < 0.001）方面，14 - 15岁组的MT显著低于18 - 20岁组。估计了每个股四头肌部分的生长高峰期年龄（VMO，155.0个月；VM，187.8个月；RF，212.2个月，VI，188.9个月；VL，181.1个月）。
结论 由于每个肌头功能不同，股四头肌各部分的生长速率也不同。
