J Sport Rehabil. 2019 Sep 1;28(7):711-715. doi: 10.1123/jsr.2018-0041.
Foam rolling (FR) increases joint range of motion (RoM), but the optimal training parameters are unknown.
To investigate the effect of FR velocity on RoM and tissue stiffness.
Randomized, controlled crossover trial.
University.
A total of 17 healthy, physically active adults (10 females; 25 [2] y).
(1) Four 45-second high-velocity FR of the anterior thigh (FAST-FR), (2) four 45-second slow-velocity FR of the anterior thigh (SLOW-FR), and (3) inactive control.
Maximal knee-flexion RoM (ultrasonic movement analysis) and anterior thigh tissue stiffness (semielectronic tissue compliance meter) assessed pre, immediately post (T0), as well as 5 (T5) and 10 (T10) minutes postintervention. Statistical analysis included Friedman tests with adjusted post hoc comparisons (Wilcoxon tests).
According to omnibus testing, RoM remained unchanged in all 3 conditions and at all time points (P > .05), while differences were found for tissue stiffness (P < .05). Post hoc tests revealed significant decreases following FAST-FR (T5: -17%, T10: -24%; P < .05) and SLOW-FR (T10: -15%; P < .05). The observed stiffness changes were significant in comparison with control (P < .01), but no difference was found between the 2 FR conditions (P > .05).
FR of the anterior thigh decreases myofascial stiffness regardless of velocity. The lack of effects on RoM contrasts findings of recent literature and warrants further investigation.
泡沫轴滚动（FR）可增加关节活动度（RoM），但最佳训练参数尚不清楚。
研究 FR 速度对 RoM 和组织僵硬度的影响。
随机对照交叉试验。
大学。
共 17 名健康、活跃的成年人（10 名女性；25[2]岁）。
（1）4 次 45 秒高速大腿前侧 FR（FAST-FR），（2）4 次 45 秒低速大腿前侧 FR（SLOW-FR），和（3）无活性对照。
最大膝关节屈曲 RoM（超声运动分析）和大腿前侧组织僵硬度（半电子组织顺应性计）在干预前（T0）、即刻（T0）以及干预后 5 分钟（T5）和 10 分钟（T10）进行评估。统计分析包括 Friedman 检验和调整后的事后比较（Wilcoxon 检验）。
根据全面测试，所有 3 种条件下的 RoM 在所有时间点均无变化（P>.05），而组织僵硬度存在差异（P<.05）。事后检验显示 FAST-FR（T5：-17%，T10：-24%；P<.05）和 SLOW-FR（T10：-15%；P<.05）后显著降低。与对照组相比，观察到的僵硬度变化具有统计学意义（P<.01），但 2 种 FR 条件之间无差异（P>.05）。
大腿前侧 FR 降低筋膜硬度，与速度无关。对 RoM 无影响的结果与最近的文献结果相反，需要进一步研究。
