Torrente Queenie Mae, Killingback Alban, Robertson Claire, Adds Philip J
Anatomy, St George's, University of London.
Medical Physics, St George's Hospital NHS Trust.
Int J Sports Phys Ther. 2022 Jun 1;17(4):636-642. doi: 10.26603/001c.35591. eCollection 2022.
Maintenance of patellar stability requires a balance between the vastus medialis oblique (VMO) and the vastus lateralis (VL). The imbalance between these muscles is thought to be implicated in the etiology of patellofemoral pain (PFP). Where there is hypertrophy of the VL in PFP patients, self-myofascial release (SMR) may be utilized for its management. However, there is no current evidence regarding SMR and its effects on VMO and VL architecture. The aim of this study, therefore, was to use ultrasound to gain further understanding of the effects of a program of SMR on the fiber angles of the VMO and VL.
There will be a significant decrease in the pennation angles of the VMO and VL after seven weeks of SMR using a foam roller.
Cohort Study.
Twenty-five young, athletic, male participants were recruited to use a foam roller, along the full length of both anterior thighs, three times weekly, on three separate days, for seven weeks. Ultrasound was used to determine the initial and final VMO and VL pennation angles on both limbs. One eligible participant was chosen as an intra-rater control and did not partake in the SMR regimen.
There was a statistically significant (p < 0.001) decrease in the pennation angles of the VMO and VL after the SMR regime. Mean combined right and left VL angle change was -6.65° (-18% mean change) and the mean combined right and left VMO angle change was -7.65° (-11.5% mean change). A weak negative correlation was found between initial VMO fiber angle and the angle change (Rsquared = -0.21), as well as moderate negative correlation for the VL (Rsquared = -0.51).
A program of SMR on the anterior thighs of young, asymptomatic males resulted in changes to the fiber angles of both the VMO and VL. There was a significant decrease in pennation angle after seven weeks of SMR using a foam roller.
维持髌骨稳定性需要股内侧斜肌（VMO）和股外侧肌（VL）之间保持平衡。这些肌肉之间的失衡被认为与髌股疼痛（PFP）的病因有关。在PFP患者中，若存在VL肥大，可采用自我肌筋膜放松（SMR）进行治疗。然而，目前尚无关于SMR及其对VMO和VL结构影响的证据。因此，本研究的目的是利用超声进一步了解SMR方案对VMO和VL纤维角度的影响。
使用泡沫轴进行7周的SMR后，VMO和VL的羽状角将显著减小。
队列研究。
招募25名年轻、活跃的男性参与者，让他们每周在三个不同的日子里，沿着双侧大腿前侧全长使用泡沫轴三次，持续7周。使用超声确定双下肢初始和最终的VMO和VL羽状角。选择一名符合条件的参与者作为组内评分对照，不参与SMR方案。
在SMR方案后，VMO和VL的羽状角有统计学意义的显著减小（p < 0.001）。左右VL平均综合角度变化为-6.65°（平均变化-18%），左右VMO平均综合角度变化为-7.65°（平均变化-11.5%）。初始VMO纤维角度与角度变化之间存在弱负相关（R平方 = -0.21），VL则存在中度负相关（R平方 = -0.51）。
对年轻无症状男性大腿前侧进行SMR方案导致VMO和VL的纤维角度发生变化。使用泡沫轴进行7周的SMR后，羽状角显著减小。
