Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
J Sports Sci. 2013;31(8):856-66. doi: 10.1080/02640414.2012.753158. Epub 2012 Dec 21.
The study aimed to assess the role of deep and superficial massage and passive stretching recovery on blood lactate concentration ([La(-)]) kinetics after a fatiguing exercise compared to active and passive recovery. Nine participants (age 23 ± 1 years; stature 1.76 ± 0.02 m; body mass 74 ± 4 kg) performed on five occasions an 8-min fatiguing exercise at 90% of maximum oxygen uptake, followed by five different 10-min interventions in random order: passive and active recovery, deep and superficial massage and stretching. Interventions were followed by 1 hour of recovery. Throughout each session, maximum voluntary contraction (MVC) of the knee extensor muscles, [La(-)], cardiorespiratory and metabolic variables were determined. Electromyographic signal (EMG) from the quadriceps muscles was also recorded. At the end of the fatiguing exercise, [La(-)], MVC, EMG amplitude, and metabolic and cardiorespiratory parameters were similar among conditions. During intervention administration, [La(-)] was lower and metabolic and cardiorespiratory parameters were higher in active recovery compared to the other modalities (P < 0.05). Stretching and deep and superficial massage did not alter [La(-)] kinetics compared to passive recovery. These findings indicate that the pressure exerted during massage administration and stretching manoeuvres did not play a significant role on post-exercise blood La(-) levels.
本研究旨在评估深度和浅层按摩以及被动拉伸恢复与主动和被动恢复相比,对疲劳运动后血乳酸浓度 ([La(-)]) 动力学的影响。9 名参与者(年龄 23 ± 1 岁;身高 1.76 ± 0.02 m;体重 74 ± 4 kg)在 5 次以 90%最大摄氧量进行 8 分钟疲劳运动,随后以随机顺序进行 5 次不同的 10 分钟干预:被动和主动恢复、深度和浅层按摩以及拉伸。干预后进行 1 小时恢复。在每个会话中,都测定了膝关节伸肌的最大自主收缩 (MVC)、[La(-)]、心肺和代谢变量。还记录了股四头肌的肌电图 (EMG) 信号。在疲劳运动结束时,[La(-)]、MVC、EMG 幅度以及代谢和心肺参数在条件之间相似。在干预过程中,与其他模式相比,主动恢复时 [La(-)] 更低,代谢和心肺参数更高 (P < 0.05)。与被动恢复相比,拉伸和深度和浅层按摩并未改变 [La(-)] 的动力学。这些发现表明,按摩和拉伸操作过程中施加的压力对运动后血乳酸水平没有显著影响。
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