Mawhinney Chris, Jones Helen, Low David A, Green Daniel J, Howatson Glyn, Gregson Warren
a Research Institute for Sport and Exercise Sciences , Liverpool John Moores University , Liverpool , UK.
b School of Sport Science, Exercise and Health , The University of Western Australia , Perth , Australia.
Eur J Sport Sci. 2017 Jun;17(5):519-529. doi: 10.1080/17461391.2017.1279222. Epub 2017 Jan 19.
This study determined the influence of cold (8°C) and cool (22°C) water immersion on lower limb and cutaneous blood flow following resistance exercise. Twelve males completed 4 sets of 10-repetition maximum squat exercise and were then immersed, semi-reclined, into 8°C or 22°C water for 10-min, or rested in a seated position (control) in a randomized order on different days. Rectal and thigh skin temperature, muscle temperature, thigh and calf skin blood flow and superficial femoral artery blood flow were measured before and after immersion. Indices of vascular conductance were calculated (flux and blood flow/mean arterial pressure). The colder water reduced thigh skin temperature and deep muscle temperature to the greatest extent (P < .001). Reductions in rectal temperature were similar (0.2-0.4°C) in all three trials (P = .69). Femoral artery conductance was similar after immersion in both cooling conditions, with both conditions significantly lower (55%) than the control post-immersion (P < .01). Similarly, there was greater thigh and calf cutaneous vasoconstriction (40-50%) after immersion in both cooling conditions, relative to the control (P < .01), with no difference between cooling conditions. These findings suggest that cold and cool water similarly reduce femoral artery and cutaneous blood flow responses but not muscle temperature following resistance exercise.
本研究确定了在进行抗阻运动后，冷水（8°C）浸泡和凉水（22°C）浸泡对下肢及皮肤血流的影响。12名男性完成了4组每组10次最大重复次数的深蹲运动，然后以随机顺序在不同日期半躺浸入8°C或22°C的水中10分钟，或坐在座位上休息（对照组）。在浸泡前后测量直肠温度、大腿皮肤温度、肌肉温度、大腿和小腿皮肤血流以及股浅动脉血流。计算血管传导指数（血流量和血流/平均动脉压）。较冷的水使大腿皮肤温度和深部肌肉温度降低的幅度最大（P < 0.001）。在所有三项试验中，直肠温度的降低幅度相似（0.2 - 0.4°C）（P = 0.69）。在两种冷却条件下浸泡后，股动脉传导相似，两种条件下均显著低于浸泡后的对照组（55%）（P < 0.01）。同样，与对照组相比，在两种冷却条件下浸泡后，大腿和小腿皮肤的血管收缩程度更大（40 - 50%）（P < 0.01），两种冷却条件之间无差异。这些研究结果表明，冷水和凉水在抗阻运动后同样会降低股动脉和皮肤的血流反应，但不会降低肌肉温度。
