School of Physical Education, Federal University of Rio Grande do Sul. Exercise Research Laboratory, Brazil.
J Hum Kinet. 2014 Jul 8;41:23-32. doi: 10.2478/hukin-2014-0029. eCollection 2014 Jun 28.
This study aimed to describe the neuromuscular activity of elite athletes who performed various roller figure skating jumps, to determine whether the muscle activation is greater during jumps with more rotations and in which phase the muscles are more active. This study also aimed to analyze if there is any difference in the muscle activity pattern between female and male skaters. Four elite skaters were evaluated, and each participated in two experimental sessions. During the first session, anthropometric data were collected, and the consent forms were signed. For the second session, neuromuscular data were collected during jumps, which were performed with skates at a rink. The following four roller figure skating jumps were evaluated: single Axel, double Axel, double Mapes and triple Mapes. The neuromuscular activity of the following seven muscles was obtained with an electromyograph which was fixed to the waist of each skater with a strap: biceps femoris, lateral gastrocnemius, tibialis anterior, rectus femoris, vastus lateralis, vastus medialis and gluteus maximus. The signal was transmitted wirelessly to a laptop. During the roller figure skating jumps, the lateral gastrocnemius, rectus femoris, vastus lateralis, biceps femoris and gluteus maximus, showed more activation during the jumps with more rotations, and the activation mainly occurred during the propulsion and flight phases. Female skaters demonstrated higher muscle activities in tibialis anterior, vastus lateralis, vastus medialis and gluteus maximus during the landing phase of the triple Mapes, when compared to their male counterparts. The results obtained in this study should be considered when planning training programs with specific exercises that closely resemble the roller figure skating jumps. This may be important for the success of elite skaters in competitions.
本研究旨在描述进行各种轮滑图形跳跃的精英运动员的神经肌肉活动,以确定在旋转次数更多的跳跃中肌肉的激活程度是否更大,以及肌肉在哪个阶段更为活跃。本研究还旨在分析女运动员和男运动员之间的肌肉活动模式是否存在差异。评估了四名精英滑冰运动员,每位运动员都参加了两个实验环节。在第一个环节中,收集了人体测量数据并签署了同意书。在第二个环节中,运动员在溜冰场的轮滑鞋上进行跳跃时,收集了神经肌肉数据。评估了以下四个轮滑图形跳跃:阿克塞尔单跳、阿克塞尔两周跳、玛普斯两周跳和玛普斯三周跳。使用肌电图仪获得了以下七个肌肉的神经肌肉活动数据,肌电图仪通过皮带固定在每个运动员的腰部:股二头肌、外侧比目鱼肌、胫骨前肌、股直肌、股外侧肌、股中间肌和臀大肌。信号通过无线传输到笔记本电脑。在轮滑图形跳跃中,外侧比目鱼肌、股直肌、股外侧肌、股二头肌和臀大肌在旋转次数更多的跳跃中表现出更高的激活程度,激活主要发生在推进和飞行阶段。与男运动员相比,女运动员在完成玛普斯三周跳的落地阶段时,胫骨前肌、股外侧肌、股中间肌和臀大肌的肌肉活动更高。在制定与轮滑图形跳跃非常相似的特定练习的训练计划时,应考虑本研究中获得的结果。这对于精英运动员在比赛中的成功可能很重要。