Large Asymmetric Hypertrophy of Rectus Abdominis Muscle in Professional Tennis Players
Large Asymmetric Hypertrophy of Rectus Abdominis Muscle in Professional Tennis Players
复制标题
职业网球运动员腹直肌大面积不对称肥大
作者：
J. Sanchis;F. Idoate;C. Dorado;S. Alayón;J. Calbet
目的测量职业网球运动员腹直肌的体积和不对称程度。方法采用磁共振成像（MRI）测量8名职业男子网球运动员和6名非运动男性对照者的RA体积。结果网球运动员的右心房体积比对照组大58%（P = 0.01），这是由于优势侧（体积大34%，P = 0.02）和非优势侧（体积大82%，P = 0.01）的肥大所致。 在网球运动员中，RA的发育存在明显的不对称性，其体积在非优势侧比优势侧大35%（P<0.001）。相比之下，在对照组中未观察到RA体积的侧-侧差异（P = 0.75）。 从第一腰椎间盘到耻骨联合，侧侧不对称程度呈线性增加（r = 0.97，P<0.001）。 结论：职业网球运动与腹直肌明显肥大有关，腹直肌的体积比非运动对照组大58%。腹直肌肥大在非优势侧比优势侧更明显，特别是在更远的区域。我们的研究支持了这样一个概念，即人类可以有区别地招募腹直肌，但也可以招募每块肌肉的上部和下部区域。这种不平衡是否会增加受伤的风险还有待确定。
Purpose To determine the volume and degree of asymmetry of the musculus rectus abdominis (RA) in professional tennis players. Methods The volume of the RA was determined using magnetic resonance imaging (MRI) in 8 professional male tennis players and 6 non-active male control subjects. Results Tennis players had 58% greater RA volume than controls (P = 0.01), due to hypertrophy of both the dominant (34% greater volume, P = 0.02) and non-dominant (82% greater volume, P = 0.01) sides, after accounting for age, the length of the RA muscle and body mass index (BMI) as covariates. In tennis players, there was a marked asymmetry in the development of the RA, which volume was 35% greater in the non-dominant compared to the dominant side (P<0.001). In contrast, no side-to-side difference in RA volume was observed in the controls (P = 0.75). The degree of side-to-side asymmetry increased linearly from the first lumbar disc to the pubic symphysis (r = 0.97, P<0.001). Conclusions Professional tennis is associated with marked hypertrophy of the musculus rectus abdominis, which achieves a volume that is 58% greater than in non-active controls. Rectus abdominis hypertrophy is more marked in the non-dominant than in the dominant side, particularly in the more distal regions. Our study supports the concept that humans can differentially recruit both rectus abdominis but also the upper and lower regions of each muscle. It remains to be determined if this disequilibrium raises the risk of injury.
影响因子：
7.1
作者：
Lee, RC;Wang, ZM;Heymsfield, SB
通讯作者：
Heymsfield, SB