Research Center for Sports, Health Sciences and Human Development, CIDESD, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
Brazilian Army, Army Headquarters, Brasília/DF, Brazil.
J Strength Cond Res. 2018 Mar;32(3):756-763. doi: 10.1519/JSC.0000000000002322.
Matos, F, Neves, EB, Rosa, C, Reis, VM, Saavedra, F, Silva, S, Tavares, F, and Vilaça-Alves, J. Effect of cold-water immersion on elbow flexors muscle thickness after resistance training. J Strength Cond Res 32(3): 756-763, 2018-Cold-water immersion (CWI) is commonly applied to speed up the recovery process after exercise. Muscle damage may induce a performance reduction and consequence of the intramuscular pressure induced by the muscular swelling. The aim of the study was to verify the CWI effects on muscle thickness (MT) behavior of the elbow flexors after a strength training (ST) protocol. Eleven men were submitted to an ST, performed in 2 different weeks. In one of the weeks, subjects experienced a passive recovery. In the other, subjects were submitted to a CWI (20 minutes at 5-10° C). Ultrasound (US) images were taken before, after, as well as 24, 48, and 72 hours after exercise, to evaluate the MT. Muscle thickness in both exercise arm (EA) and control arm (CA) was significantly higher 48 and 72 hours after exercise when subjects were submitted to a passive recovery compared with the CWI (p = 0.029, p = 0.028, p = 0.009, and p = 0.001, 48 hours, 72 hours, EA, and CA, respectively). When each arm was analyzed with or without using CWI individually, significantly higher MT was observed in the EA with CWI: before exercise in relation to 72 hours after exercise (p = 0.042) and after exercise in relation to the other measurements (p = 0.003, p = 0.003, p = 0.038, and p < 0.0001, before exercise and 24, 48, 72 hours after exercise, respectively). The evaluation of MT by US provides evidence that CWI after ST (and 24 hours after exercise) may reduce muscle swelling in the postexercise days when compared with a passive recovery. Seems to be a paradox between the uses of CWI for an acute reduction of muscle swelling.
马托斯、F、内维斯、EB、罗莎、C、雷伊斯、VM、萨维德拉、F、席尔瓦、S、塔瓦雷斯、F 和维拉恰-阿尔维斯、J. 冷水浸泡对阻力训练后肘屈肌肌肉厚度的影响。J 力量与条件研究 32(3):756-763,2018-冷水浸泡 (CWI) 常用于加速运动后的恢复过程。肌肉损伤可能会导致运动表现下降，以及肌肉肿胀引起的肌内压后果。本研究的目的是验证 CWI 对力量训练 (ST) 方案后肘屈肌肌肉厚度 (MT) 行为的影响。11 名男性接受了 ST，在 2 周内进行。在其中一周，受试者经历了被动恢复。在另一周，受试者接受了 CWI（20 分钟，5-10°C）。在运动前后以及运动后 24、48 和 72 小时，使用超声 (US) 图像评估 MT。与接受 CWI 相比，在接受被动恢复时，运动侧 (EA) 和对照侧 (CA) 的肌肉厚度在运动后 48 和 72 小时显着升高（p = 0.029，p = 0.028，p = 0.009，p = 0.001，分别为 48 小时，72 小时，EA 和 CA）。当分别单独使用或不使用 CWI 分析每个手臂时，观察到在 CWI 下的 EA 中 MT 更高：与运动后 72 小时相比，运动前（p = 0.042）和运动后与其他测量值相比（p = 0.003，p = 0.003，p = 0.038，p <0.0001，分别为运动前和运动后 24、48、72 小时）。US 评估 MT 的结果表明，与被动恢复相比，ST 后（和运动后 24 小时）的 CWI 可能会减少运动后几天的肌肉肿胀。在 CWI 用于急性减轻肌肉肿胀方面似乎存在悖论。
