首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   12篇
  体育   12篇
  2018年   3篇
  2017年   3篇
  2016年   3篇
  2015年   1篇
  2010年   2篇
排序方式: 共有12条查询结果,搜索用时 31 毫秒
1.
大强度间歇训练心肌细胞分子适应机制   总被引:1,自引:1,他引:0  
运动强度可能是影响心脏功能的一个非常重要的运动学参数。运动诱导心肌细胞内在的分子变化机制表明大强度间歇训练可能是提高心脏功能最佳的运动方式。  相似文献
2.
周期性耐力项目训练负荷的生物学基础是不同运动方式的能量供应和能量利用特征。随着对能量代谢特征认识的深入,有氧训练对周期性耐力项目的重要性逐渐达成共识,无氧训练在周期性耐力项目中的受关注度逐渐增加。有氧训练以低强度持续训练为主,无氧训练更加关注高强度间歇训练。  相似文献
3.
目前国外对高强性间歇训练法的运用和研究较多,但国内速滑界对高强度间歇训练提高有氧耐力一直存在不同的认识和理解。通过文献资料法、实验法对黑龙江省队的速滑运动员进行为期4周的高强度间歇训练实验,表明高强度间歇训练方法可以在一个较短的时期提高速滑运动员的有氧耐力能力,对有氧耐力素质的提高有积极的作用,是发展运动员机体糖酵解供能代谢系统比较好的手段。  相似文献
4.
目的:探讨8周高强度间歇训练(High Intensity Interval Training,HIIT)对男子赛艇公开级运动员血红蛋白和身体成分的影响。方法某省16名男子赛艇公开级运动员作为研究对象,采取随机抽样的方式分成对照组和高强度间歇组(HIIT组),每组各8例。连续8周对照组采用一般日常训练,HIIT组增加高强度间歇训练。比较训练前后两组血红蛋白和身体成分指标变化情况。结果 HIIT组8名队员训练前后血红蛋白水平有显著提高(P<0.05),对照组不显著(P>0.05);体重和脂肪百分比含量下降,对照组显著(p<0.05),HIIT组极显著(p<0.01);而瘦体重和去脂体重,HIIT组有显著增加(p<0.05),对照组变化不明显(p>0.05)。结论8周HIIT训练能明显提高赛艇男子公开级运动员血红蛋白水平,并显著降低体脂,增加瘦体重和去脂体重。  相似文献
5.
赛艇是一项力量耐力性运动项目,在全程2000m比赛过程中,高质量的力量和耐力水平,对取得优异的比赛成绩,具有极其重要的作用。人们对于机体能力的关注,经历了一个漫长的阶段。从持续训练法到法特莱克训练法,从间歇训练及其机制的不断探索到赛艇专项代谢基础研究,从乳酸阈模式到两极化模式,到现在的高强度间歇性训练,耐力训练方式的不断更新,推动着运动员能力的不断提升。因此,如何最大限度地提高赛艇运动员力量和耐力,是赛艇项目教练员一直以来最为关注的问题。  相似文献
6.
Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted of two rounds of 4 × 30 s sprints. Foods were offered at a regular school lunch immediately following HIIT and SED and were matched between conditions. All food was covertly weighed before and after the meal. Hunger, fullness and prospective consumption were reported immediately before and after HIIT/SED, using visual analogue scales. Heart rate was higher during HIIT than SED (159.3 ± 23.1 vs. 76.9 ± 2.2 bpm, < 0.05). Lunch energy intake was not different (P = 0.52) following HIIT, compared to SED (2.06 ± 0.35 vs. 2.09 ± 0.29 MJ, respectively). There were no significant differences in macronutrient intake or subjective appetite (P > 0.05). Results suggest that HIIT can be implemented in a PE lesson immediately before lunch, without causing a compensatory increase in food consumption.  相似文献
7.
High Intensity Interval Training (HIIT) may be effective for accumulating VPA. However, the contribution of HIIT to overall physical activity is unknown. Our primary aim was to explore the impact of school-based HIIT on physical activity. The secondary aim was to explore within-individual changes in physical activity after participating in HIIT. Participants [n = 65; 15.8(0.6)years] were randomized to a HIIT or control group. Intervention groups participated in three HIIT sessions/week. GENEActiv accelerometers assessed objective physical activity at baseline and week-one, to detect changes in MPA and VPA. Intervention effects were examined using linear mixed models and evidence of a change in physical activity (i.e., compensation) were examined using multilevel linear regression models. The group-by-time interaction effects for MPA and VPA were small and moderate, respectively. Adjusted difference between groups for VPA was 1.70 min/day, 95%CI –1.96 to 5.36; p = 0.354; d = 0.55). Embedding HIIT within the school-day had a moderate effect on VPA compared to controls. Compensation analyses (i.e., individual level) suggested that adolescents were more active on days when they participated in HIIT. Further studies are needed to test the effects of HIIT on adolescents’ physical activity over extended time periods.  相似文献
8.
This study examined the validity and reliability of a 30-second running sprint test using two non-motorized treadmills compared to the established Wingate Anaerobic Test. Twenty-four participants completed three sessions in a randomized order on a: (1) manual mode treadmill (Woodway); (2) specialized interval training treadmill (HiTrainer); and (3) Wingate cycle ergometer. In a subset of 15 participants, 2 additional sessions were completed on both treadmills to establish the test–retest reliability. Peak (Woodway: r = .68; HiTrainer: r = .58; p < .003), average (Woodway: r = .82; HiTrainer: r = .72, p < .001), and minimum (Woodway: r = .64; HiTrainer: r = .42, p < .043) speed indices were moderately to very strongly correlated with corresponding Wingate Anaerobic Test outputs and had excellent test–retest reliability (all intraclass correlation coefficients > .75). Fatigue index during the Wingate Anaerobic Test (51.20 ± 7.14%) was moderately correlated with the Woodway (32.9 ± 10.9%, r = .55, p = .005) only. This 30-second running sprint test may be a valid and reliable mode-specific alternative to the Wingate Anaerobic Test.  相似文献
9.
10.
Recently, there has been growing interest in high-intensity interval training (HIT) as a strategy to improve health. In this pilot study, we examined the feasibility of a 4-week low-volume HIT and its effects on cardiorespiratory fitness (CRF), blood pressure (BP) and enjoyment in overweight and obese youth. Twelve adolescents (body mass index (BMI): 34.8 ± 3.9 kg · m2, 14.9 ± 1.5 years) participated in 12 sessions of HIT (10 × 60 s cycling bouts eliciting ~90% maximal heart rate, interspersed with 90 s recovery, 30 min/session, 3 sessions/week) over ~4 weeks. All the participants completed the study and exercise attendance averaged 92%. Despite no changes in body weight and total fat, HIT resulted in significant (P < 0.01) increases in CRF (pre: 20.1 versus post: 22.2 ml · kg‒1 · min‒1) and exercise time (pre: 425 versus post: 509 s) during peak oxygen uptake test, and a reduction in resting systolic BP (pre: 115.8 versus post: 107.6 mmHg). The majority of study participants (83%) enjoyed HIT and more than half of the participants (58%) reported that HIT is a more enjoyable form of exercise compared to other types of exercises. Low-volume HIT is a useful strategy to promote exercise participation and improve cardiovascular health in overweight and obese youth.  相似文献
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号