Thermoneutral immersion exercise accelerates heart rate recovery: A potential novel training modality     

Mauricio Garzon  Olivier Dupuy  Laurent Bosquet  Anil Nigam  Alain Steve Comtois  Martin Juneau 《European Journal of Sport Science》2017,17(3):310-316

This study compared heart rate recovery (HRR) after incremental maximal exercise performed at the same external power output (P_ext) on dry land ergocycle (DE) vs. immersible ergocycle (IE). Fifteen young healthy participants (30?±?7 years, 13 men and 2 women) performed incremental maximal exercise tests on DE and on IE. The initial P_ext on DE was 25?W and was increased by 25?W/min at a pedalling cadence between 60 and 80?rpm, while during IE immersion at chest level in thermoneutral water (30°C), the initial P_ext deployment was at a cadence of 40?rpm which was increased by 10?rpm until 70?rpm and thereafter by 5?rpm until exhaustion. Gas exchange and heart rate (HR) were measured continuously during exercise and recovery for 5?min. Maximal HR (DE: 176?±?15 vs. IE 169?±?12?bpm) reached by the subjects in the two conditions did not differ (P?>?.05). Parasympathetic reactivation parameters (ΔHR from 10 to 300?s) were compared during the DE and IE HR recovery recordings. During the IE recovery, parasympathetic reactivation in the early phase was more predominant (HRR at Δ10–Δ60?s, P?<?.05), but similar in the late phase (HRR at Δ120–Δ300?s, P?>?.05) when compared to the DE condition. In conclusion, incremental maximal IE exercise at chest level immersion in thermoneutral water accelerates the early phase parasympathetic reactivation compared to DE in healthy young participants.  相似文献   

Sand training: Exercise-induced muscle damage and inflammatory responses to matched-intensity exercise     

Henry Brown  Brian Dawson  Martyn J. Binnie  Hugh Pinnington  Marc Sim  Tristan D. Clemons 《European Journal of Sport Science》2017,17(6):741-747

This study compared markers of muscle damage and inflammation elevated by a matched-intensity interval running session on soft sand and grass surfaces. In a counterbalanced, repeated-measures and crossover design, 10 well-trained female athletes completed 2 interval-based running sessions 1 week apart on either a grass or a sand surface. Exercise heart rate (HR) was fixed at 83–88% of HR maximum. Venous blood samples were collected pre-, post- and 24?h post-exercise, and analysed for myoglobin (Mb) and C-reactive protein (CRP). Perceptual ratings of exertion (RPE) and muscle soreness (DOMS) were recorded immediately post- and 24?h post-exercise. A significant time effect showed that Mb increased from pre- to post-exercise on grass (p?=?.008) but not on sand (p?=?.611). Furthermore, there was a greater relative increase in Mb on grass compared with that on sand (p?=?.026). No differences in CRP were reported between surfaces (p?>?.05). The HR, RPE and DOMS scores were not significantly different between conditions (p > .05). These results suggest that in response to a matched-intensity exercise bout, markers of post-exercise muscle damage may be reduced by running on softer ground surfaces. Such training strategy may be used to minimize musculoskeletal strain while still incurring an equivalent cardiovascular training stimulus.  相似文献   

创建运动恢复理论新体系   总被引：1，自引：0，他引：1  

宋继新  李如喜 《北京体育大学学报》1999,(2)

为完善竞技运动理论体系,提高运动恢复的质量和效益,针对过去训练理论偏重生物性恢复,忽略心理和社会性恢复的现实,构建了由生物学、心理学和社会学三方位组合的运动恢复理论新体系。  相似文献   

过度训练理论研究综论   总被引：1，自引：0，他引：1  

卢高峰  戴金彪 《山西师大体育学院学报》2004,19(4):109-111

过度训练直接影响运动员的健康和运动能力,因此受到国内外体育界的密切关注。通过对近年国内外过度训练文献的回顾,对过度训练从5个方面加以论述：即概念问题,类型,表现症状和诊断指标,预防以及恢复手段。  相似文献   

A mathematical model for power output in rowing on an ergometer     

Scott?GordonEmail author 《Sports Engineering》2003,6(4):221-234

A mathematical model relating power output of rower to stroke rate on an ergometer (the Concept II Indoor Rower TM, Model C) is studied. The model is used to analyse the ergometer performance of a particular rower. It is determined that he can be more efficient (i.e. decrease power output while maintaining fixed velocity) by decreasing stroke rate, but at the expense of increasing force during the drive. It is also shown that he can be more efficient by increasing the drag factor (using higher vent setting) without increasing force. Dependence of power output on rowing style (the shape of the force curve) is also examined. It is shown that variation of force during the drive has little effect on efficiency, but efficiency is reduced by asymmetry of the force curve that favours the legs.  相似文献   

篮球运动性疲劳的诊断和恢复     

韩玉彬 《体育科技文献通报》2007,15(6):69-71

运用文献资料和逻辑分析等研究方法,在分析篮球运动性疲劳产生机制的前提下,总结出几种判断篮球运动员运动性疲劳的方法:生理指标测定法、自我感觉、一般观察法。提出几种有效的恢复手段:教育学恢复方法、医学生物学恢复方法、合理的营养补充、心理学恢复方法。以期为运动员训练比赛后疲劳的诊断和恢复提供理论参考。  相似文献   

对常见的运动损伤与恢复性练习的探讨     

张旭东  杨忠玉 《哈尔滨体育学院学报》2007,25(4):133-135

在运动过程中或多或少常会有不同程度的运动损伤,一旦受到严重的运动损伤,需要休息很长时间,并重新参加训练,方可达到以前的运动水平,所以可以根据发病的规律和特点,及时的采取各种措施,合理安排伤后的训练,以及用运一些辅助的恢复性练习方法加速功能的恢复,这是很有必要的。  相似文献   

埃塞俄比亚加里农业示范区生态恢复树种选择的思考(英文)     

汪洋  赵利华 《湖北生态工程职业技术学院学报》2007,(3)

在埃塞俄比亚加里农业示范区的生态恢复项目中,树种选择至关重要,必须充分考虑了不同植物品种在不同农业气候带,海拔区域,在景观中的特殊生境,土壤要求,抗旱能力等因素。本文建立了植物品种选择模式,该模式体现了控制水土流失和实现生态恢复的一种观念。  相似文献   

运动性疲劳及其恢复   总被引：13，自引：0，他引：13  

许弟锋 《湖北体育科技》2004,23(4):470-472

运动性疲劳包括运动性生理疲劳和运动性心理疲劳，通过分析其产生的机理，采用适当的、针对性的恢复措施，消除运动性疲劳，从而提高运动训练效果。  相似文献   

耐力训练与静电场对大白鼠心肌细胞超微结构的影响   总被引：2，自引：0，他引：2  

徐绍曾  黄淑珍  何秋文  王晓光  刘宝垣 《体育科学》1997,(1)

分析非训练型与训练型大白鼠力竭运动后心肌细胞超微结构的变化及在恢复过程中经静电场短时间处理,心肌细胞恢复的实验结果,认为动物在力竭运动后经静电场短时间处理,可加速细胞结构的恢复过程,其加速恢复的作用与长期训练所起的作用相类似。  相似文献