Differences in Muscle Oxygenation, Perceived Fatigue and Recovery between Long-Track and Short-Track Speed Skating.
Differences in Muscle Oxygenation, Perceived Fatigue and Recovery between Long-Track and Short-Track Speed Skating.
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DOI：
10.3389/fphys.2016.00619
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发表时间：
2016
影响因子：
4
通讯作者：
Cooper CE
中科院分区：
文献类型：
--
作者：
Hettinga FJ;Konings MJ;Cooper CE
由于速度滑冰的技术性质，这是影响生理机制，如氧合和血液流动，这项运动提供了一个独特的设置，使我们能够发现新的机制的见解，生理反应的运动在精英中距离和耐力运动。本研究旨在探讨不同滑冰模式（短道与长道）对优秀速度滑冰运动员肌肉氧合、知觉疲劳和恢复的影响。采用近红外光谱法对12名优秀短道速滑运动员在最大努力的长道（LT）和短道（ST）滑冰计时赛中的肌肉氧合进行了连续监测。双腿股外侧肌。对每个测试阶段进行视频捕获，以进一步解释肌肉氧合。为了确定恢复情况，在每次测试后2小时和4小时测量自感劳累。重复测量ANOVA用于统计分析（p < 0.05）。在开始后，两条腿的饱和度迅速下降，在LT过程中发现两条腿之间的肌肉氧合不对称（组织饱和度-指数（TSI%）-斜率：左侧= 0.053 ± 0.032;右侧= 0.023 ± 0.020，p < 0.05）和ST速滑（TSI%斜率：左= 0.050 ± 0.052，右= 0.001 ± 0.053，p < 0.05）。ST组右腿的再饱和度相对较低。对于左腿，在肌肉氧合方面，两种滑冰模式之间没有差异。分别为2（ST = 5.8 ± 2.0; LT = 4.2 ± 1.5）和4 h（ST = 4.6 ± 1.9; LT = 3.1 ± 1.6），在时间试验后，ST的感知用力率更高。根据我们的结果，ST似乎更具生理要求，与LT相比，训练后需要更长的恢复时间。运动模式特有的技术方面似乎会影响氧合，影响与运动强度调节相关的过程，如疲劳和恢复。
Due to the technical nature of speed skating, that is affecting physiological mechanisms such as oxygenation and blood flow, this sport provides a unique setting allowing us to uncover novel mechanistic insights of the physiological response to exercise in elite middle-distance and endurance sports. The present study aimed to examine the influence of skating mode (short-track vs. long-track) on muscle oxygenation, perceived fatigue, and recovery in elite speed skating. Muscle oxygenation of 12 talented short-track speed skaters was continuously monitored during a long-track (LT) and a short-track (ST) skating time-trial of maximal effort using near-infrared spectroscopy (NIRS) on the m. vastus lateralis for both legs. Video captures were made of each testing session for further interpretation of the muscle oxygenation. To determine recovery, perceived exertion was measured 2 and 4 h after each testing sessions. Repeated measures ANOVA's were used for statistical analysis (p < 0.05). After a rapid desaturation in both legs directly after the start, an asymmetry in muscle oxygenation between both legs was found during LT (tissue saturation-index (TSI%)-slope: left = 0.053 ± 0.032; right = 0.023 ± 0.020, p < 0.05) and ST speed skating (TSI%-slope: left = 0.050 ± 0.052, right = 0.001 ± 0.053, p < 0.05). Resaturation of the right leg was relatively lower in ST compared to LT. For the left leg, no difference was found between skating modes in muscle oxygenation. Respectively, two (ST = 5.8 ± 2.0; LT = 4.2 ± 1.5) and 4 h (ST = 4.6 ± 1.9; LT = 3.1 ± 1.6) after the time-trials, a higher rate of perceived exertion was found for ST. Based on our results, ST seems more physiologically demanding, and longer periods of recovery are needed after training compared to LT. Technical aspects unique to the exercise mode seem to impact on oxygenation, affecting processes related to the regulation of exercise intensity such as fatigue and recovery.
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影响因子：
3
作者：
Macfarlane, D. J.;Wong, P.
通讯作者：
Wong, P.
影响因子：
2.9
作者：
Loenneke, Jeremy P.;Kim, Daeyeol;Bemben, Michael G.
通讯作者：
Bemben, Michael G.
影响因子：
2.8
作者：
Murthy, G;Hargens, AR;Rempel, DM
通讯作者：
Rempel, DM
DOI：
10.1097/00005768-199702000-00014
发表时间：
1997-02-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Rundell, KW;Nioka, S;Chance, B
通讯作者：
Chance, B
DOI：
10.1249/mss.0b013e31822f8942
发表时间：
2012-03-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Hesford, Catherine Mary;Laing, Stewart J.;Cooper, Chris E.
通讯作者：
Cooper, Chris E.