共查询到20条相似文献，搜索用时 250 毫秒
1.
在现代社会高速发展的今天,高校体育与社会体育趋向融合,高校体育在逐渐社会化的过程中,社会角色不断转变,社会功能日益突显。正确认识高校体育的社会角色和功能,全面了解高校体育社会化发展的方向与意义所在,有利于准确把握高校体育的未来,推动全民健身事业的健康稳定发展。 相似文献
2.
目的:观察针刺对急性骨骼肌钝挫伤大鼠卫星细胞增殖的影响。方法:将采用打击装置造成后下肢腓肠肌钝挫伤的大鼠随机分为即刻组、针刺治疗组、自然愈合组。针刺治疗组采用阿是穴针刺疗法,自然愈合组不治疗。结果:针刺治疗组肌卫星细胞核数在大鼠伤后第2天时达高峰,而自然愈合组在伤后第4天达高峰,之后呈下降趋势。在损伤后第1天、第2天、第4天,针刺治疗组大鼠肌卫星细胞核数目均比自然愈合组多,且在损伤后第2天显著高于自然愈合组。结论:大鼠骨骼肌损伤后,针刺能促进肌卫星细胞的增殖并促使活跃期提前出现,促进肌肉再生,加速损伤愈合的进程。 相似文献
3.
学校体育是提高青少年健康素质的关健环节,改革开放以来,为加强学校体育工作,促进青少年参与体育锻炼,政府部门相继出台了一系列政策法规,但是,青少年学生的体质却持续下降。本文以辽宁省为例,利用问卷调查法、文理统计法等,对学校体育政策的执行情况进行调查研究,分析制约我国学投体育政策执行的因素,并据此提出对策建议。 相似文献
4.
现代排球扣球技术研究成果分析 总被引：2，自引：0，他引：2
扣球技术是排球运动中制胜的重要技术之一，是得分、得权的主要手段。在排球运动漫长的发展过程中，随着扣球技术的不断发展，人们对它的研究也越来越深入、系统，其研究的方法、手段日新月异，为了进一步了解目前世界上对扣球技术的研究动态，把握扣球技术发展状况与趋势，特对当今世界扣球技术最新研究成果进行综合、分析、比较，使其研究的信息为运动实践服务。 相似文献
5.
Ebine N Rafamantanantsoa HH Nayuki Y Yamanaka K Tashima K Ono T Saitoh S Jones PJ 《Journal of sports sciences》2002,20(5):391-397
To determine the daily energy requirements of professional soccer players during a competitive season, we measured total energy expenditure in seven players (age 22.1+/-1.9 years, height 1.75+/-0.05 m, mass 69.8+/-4.7 kg; mean +/- s) using the doubly labelled water method. Energy intake was simultaneously estimated from 7 day self-report dietary records. Mean total energy expenditure and energy intake were 14.8+/-1.7 MJ x day(-1) (3532+/-408 kcal x day(-1)) and 13.0+/-2.4 MJ x day(-1) (3113+/-581 kcal x day(-1)), respectively. Although there was a significant difference between total energy expenditure and energy intake (P < 0.01), there was a strong relationship between the two (r= 0.893, P< 0.01). Basal metabolic rate and recommended energy allowance calculated from the Recommended Dietary Allowances for the Japanese were 7.0+/-0.3 MJ x day(-1) (1683+/-81 kcal x day(-1)) and 15.6+/-0.8 MJ x day(-1) (3739+/-180 kcal x day(-1)), respectively. A physical activity level (total energy expenditure/ basal metabolic rate) of 2.11+/-0.30 indicated that, during the competitive season, professional soccer players undertake much routine physical activity, similar to that of competitive athletes during moderate training. Energy intake estimated using dietary records was under-reported, suggesting that its calculation from these data does not predict energy expenditure in soccer players. 相似文献
6.
董佼 《体育科技文献通报》2011,19(11):130-131
随着广告行业的发展,植入式广告已经出现在我们所接触到的各种媒介中,而在网络游戏盛行的现在,植入式广告找到了更加广阔的发展平台,但现阶段也呈现出一些问题,体育网游的出现在很大程度上为植入式广告的发展提供了新的契机。本文从网络游戏植入式广告的发展现状分析其存在的优势和不足,进而指出植入式广告在体育网游中的应用优势扣发展前景。 相似文献
7.
Naoyuki Ebine Hoby Hasina Rafamantanantsoa Youichirou Nayuki Kunio Yamanaka Kouzou Tashima Takeshi Ono 《Journal of sports sciences》2013,31(5):391-397
To determine the daily energy requirements of professional soccer players during a competitive season, we measured total energy expenditure in seven players (age 22.1 - 1.9 years, height 1.75 - 0.05 m, mass 69.8 - 4.7 kg; mean - s ) using the doubly labelled water method. Energy intake was simultaneously estimated from 7 day self-report dietary records. Mean total energy expenditure and energy intake were 14.8 - 1.7 MJ · day -1 (3532 - 408 kcal· day -1 ) and 13.0 - 2.4 MJ · day -1 (3113 - 581 kcal· day -1 ), respectively. Although there was a significant difference between total energy expenditure and energy intake ( P ? 0.01), there was a strong relationship between the two ( r = 0.893, P ? 0.01). Basal metabolic rate and recommended energy allowance calculated from the Recommended Dietary Allowances for the Japanese were 7.0 - 0.3 MJ ·day -1 (1683 - 81 kcal· day -1 ) and 15.6 - 0.8 MJ · day -1 (3739 - 180 kcal· day -1 ), respectively. A physical activity level (total energy expenditure/ basal metabolic rate) of 2.11 - 0.30 indicated that, during the competitive season, professional soccer players undertake much routine physical activity, similar to that of competitive athletes during moderate training. Energy intake estimated using dietary records was under-reported, suggesting that its calculation from these data does not predict energy expenditure in soccer players. 相似文献
8.
9.
The purpose of this study was to establish the effect of exercise at different times of day on saliva flow rate, immunoglobulin A (sIgA) concentration and secretion rate, and alpha-amylase activity, and to establish how these parameters change following a second exercise bout performed on the same day. In a counterbalanced design, eight male volunteers participated in three experimental trials separated by at least 4 days. On the trial with afternoon exercise only, the participants cycled for 2 h at 60% VO2max starting at 14:00 h. On the other two trials, participants performed either two bouts of exercise at 60% VO2max for 2 h (the first started at 09:00 h and the second started at 14:00 h) or a separate resting trial. Unstimulated saliva samples were obtained 10 min before exercise, after 58 - 60 min and during the last 2 min of exercise, and at 1 h and 2 h after exercise. Venous blood samples were taken 5 min before exercise and immediately after exercise for both bouts. Participants remained fasted between 23:00 h on the day before the trials and 18:00 h on the day of the trial. Circadian variations were found in sIgA concentration, which decreased with time from its highest value in the early morning to its lowest value in the evening, and salivary alpha-amylase secretion rate, which increased from its lowest value in the morning to its highest value in the late afternoon. Cycling at 60% VO2max for 2 h significantly decreased saliva flow rate, increased sIgA concentration and alpha-amylase activity, but did not influence sIgA secretion rate. Performing prolonged cycling at different times of day did not differentially affect the salivary and plasma hormonal responses in the short term. Performance of a second prolonged exercise bout elicited a greater plasma stress hormone response but did not appear to compromise oral immunity acutely. These findings also suggest that, in terms of saliva secretion, sIgA and alpha-amylase responses, a 3 h rest is enough to recover from previous strenuous exercise. During such exercise, sympathetic stimulation appears to be strong enough to inhibit saliva flow rate; however, it appears that it does not increase sIgA output via transcytosis. 相似文献
10.
目的:为探讨福建省优秀女子400米栏运动员基本训练周计划的科学合理性,发现优势与不足,并加以完善。方法:文献资料、访谈调查、逻辑分析等。结论:在全年训练中,基本训练周被采用得最多,尤其是在准备期,基本训练周是最主要的周型;基本训练周计划大体上存在"综合训练课一周三次并间隔一天,调整课安排在中间"的共有规律;一周中的不同训练日交替安排不同的训练内容,其中2-3次大负荷训练课分布安排在力量、耐力、综合素质等训练中,使得不同训练内容合理的交替,值得一提的是周四调整课中安排足球游戏,进而调整运动员的情绪。 相似文献
11.
Hung-Tsung Wang Shu-Man Chen Shin-Da Lee Mei-Chich Hsu Kun-Ning Chen Yuh-Feng Liou 《Journal of sports sciences》2013,31(3):291-297
Abstract Several lines of evidence suggest that dehydroepiandrosterone sulphate (DHEA-S) is invariably consumed following different types of acute stress, implicating its role in stress coping and recovery. The role of DHEA-S in the mood adjustment against negative outcome for athletic competition has not previously been investigated. In the current study, 14 elite golfers participating in a major national golf tournament were subsequently divided into two groups according to their competition outcomes: made the cut (n = 8) and failed to make the cut (n = 8). The Profile of Mood States (POMS) inventory and plasma concentrations of DHEA-S and cortisol were measured 1 day before the beginning of competition (baseline) and 1, 3, and 5 days after the players' final competition, in the morning (08.00–08.30 h) under fasted conditions. Results showed that the total mood disturbance scores and DHEA-S were not changed for the group that made the cut throughout the entire observation period. DHEA-S concentration for the group that failed to make the cut fell significantly below baseline values on day 1 and remained lower for 5 days. The Depression subscale of the POMS for the group that failed to make the cut was increased only on day 1 post-competition, reflecting a situational reaction to the event. Cortisol concentration for the group that made the cut fell significantly below baseline values on day 1 only after competition and no change was observed for the group that failed to make the cut. In conclusion, although the overall mood state post-competition was well-maintained for those golfers who had a negative competition outcome, plasma DHEA-S concentration was reduced for 5 days, suggesting that it has a role in the coping mechanism against psychological challenge. 相似文献
12.
论武术套路运动的艺术美 总被引：2，自引：0，他引：2
中华武术是古老东方文化的瑰宝和精华，发展至今已有套路和搏斗两种运动形式。武术套路艺术美是武术实用自然美和艺术美的辩证统一体。艺术使武术套路源于生活，高于生活，以其独特的个性魅力推动世界体育文化的大发展。文章讨论了武术艺术的发展史以及武术套路的4个美学特征，这一探索对武术的继承、发展、变革、创新是必要和重要的。 相似文献
13.
Short-term effect of physical activity on sleep health: A population-based study using accelerometry
《运动与健康科学(英文)》2022,11(5):630-638
BackgroundRegular physical activity (PA) is an important behavior in improving sleep health. However, the short-term effects of PA on sleep are still controversial. This study aimed to verify the effect of different intensities of PA practiced in different periods of the day on the subsequent sleep night in a population-based cohort of young adults.Methods: Prospective analyses were conducted for PA performed during the day and its effect on the following sleep night using data from the 22-year follow-up of the 1993 Pelotas Birth Cohort in Brazil (mean age of participants = 22.6 years). Wrist-worn accelerometry was used to measure both PA and sleep parameters. Regarding intensity, we analyzed the sleep effect of light PA (LPA), moderate PA, and vigorous PA, stratified by sex. Sleep variables were sleep time window (STW; the difference between sleep onset and sleep end), total sleep time (TST; the sum of minutes classified as sleep in STW), and sleep percent (SP; SP = (TST/STW); expressed in percentage). We performed generalized estimating equations using Stata software.Results: The means of STW, TST, and SP were 443.6 min/day, 371.1 min/day, and 84%, respectively. Time spent in moderate PA and vigorous PA in the morning and afternoon was not associated with sleep variables. Among men, 10 min/day of morning LPA increased TST by 2.56 min/day. Among women, 10 min/day of morning LPA increased SP by 0.15 percentage points. Afternoon LPA also increased SP by 0.09 percentage points for women. Night PA seems to have an inverse effect on sleep variables for any intensity and both sexes.Conclusion: The effect of PA on sleep health is intrinsically related to the period of the day in which it is performed. The effect magnitude is different between sexes. For better sleep health, it is preferable that PA be performed during the day. 相似文献
14.
彭小丹 《西安体育学院学报》2004,(Z1)
中国职业篮球联赛CBA举办以来,已取得了很大成功,但随着NBA的全球化,CBA已经成为NBA的选 材基地,自身的发展却受到严重影响。NBA在篮球王国50年的打拼中生存下来,且日益强大,自有其成功的奥秘。 因此,有必要借鉴NBA在完善制度、平衡实力、把握商机等方面的成功经验,以求构建具有中国特色的、全新的CB A联赛机制,推动篮球运动的发展。 相似文献
15.
我国西南部地区特有的地理条件为开展多种体育旅游项目提供了有利的地形资源。随着西南部的开发以及体育旅游逐渐成为一种时尚,到西南部体育旅游的人与日俱增。笔者运用文献与调查方法从我国西南部地理、气候、气象条件等方面,分析西南部体育旅游保健的特殊性,并根据其特点提出西南部体育旅游应采取的保健措施和开发研制相应的保健产品的思路。 相似文献
16.
中国传统武术是中国五千年文化的分支,目前却面临着传承的危机与失传.文章以文献资料法、归纳法、比较研究法等研究方法,从社会不同的角度对传统武术传承困难的原因进行了比较分析与总结.并得出只有保持传统武术的文化特色,转变理论模式,改革管理交流的方式,才能加快传统武术在现代化进程中的普及与推广,重现新的繁荣. 相似文献
17.
长期运动对增龄大鼠血浆胸主动脉内皮素-1的影响 总被引：3，自引：0，他引：3
为探讨长期不同持续时间和频率的游泳运动对增龄大鼠血浆、胸主动脉ET-1分泌的影响,选取2月龄雄性SD大鼠作为青年安静对照组,9-10月龄大鼠作为增龄组。增龄组又分为安静对照组和运动组,运动方式为无负重游泳,运动时间分别为每次1h和2h,运动频率为每周6次和3次,游泳运动周数总计14周。采用放免方法测定血浆、胸主动脉ET-1浓度。结果:⑴增龄时血浆ET-1的变化没有显著性;而胸主动脉ET-1随着增龄而升高(P<0 01)。⑵不同游泳运动后增龄大鼠血浆ET-1有升高的趋势,但差异无统计学意义,运动组之间的差异也没有显著性;运动后,胸主动脉ET-1的含量均下降(P<0 01)。结论:①增龄时胸主动脉ET-1水平明显升高,可能与增龄导致的内皮细胞损伤有关;增龄时血浆ET-1水平没有变化,提示血浆ET-1浓度不能准确地反应胸主动脉ET-1水平;②当增龄诱导的胸主动脉ET-1明显升高时,运动可以有效地降低其浓度,从而减弱ET-1的致病作用;③运动后各组血浆ET-1浓度适度升高可能有助于加强心肌收缩力。 相似文献
18.
E. L. J. Eyre V. M. Cox S. L. Birch M. J. Duncan 《European Journal of Sport Science》2016,16(3):381-390
Integrating physical activity (PA) within a school curriculum is a promising approach for increasing PA in children. To date, no research has examined its effectiveness in increasing the low levels of PA witnessed in deprived South Asian (SA) children. The study aims to ascertain whether an integrated school-based curriculum and pedometer intervention could increase PA in children from deprived SA backgrounds. Following ethical approval and informed consent, 134 deprived SA children (63 boys, 71 girls, control (n?=?40, mean age?=?11.12 years, SD?=?0.32 years) and intervention (n?=?94, mean age?=?9.48 years, SD?=?0.62 years)) from a primary school in England, UK, completed a 6-week integrated PA intervention based on virtually walking from their school (middle of the country) to the coast and back (March–July 2013). Habitual PA was determined at baseline and post 6 weeks intervention for both groups, and determined weekly during the intervention in the experimental group. The results indicated that average daily steps were significantly higher at post 6 weeks compared to baseline for the intervention group (intervention mean change?=?8694 steps/day, SD?=?7428 steps/day vs. control mean change?=??1121 steps/day, SD?=?5592 steps/day, 95% CI of difference, 6726–7428 steps/day, P?=?.001, d?=?1.76). In addition, significant decreases in BF% and waist circumference were observed in the intervention group post 6 weeks (mean change for BF%?=??4.5%, mean change for WC?=??1.7?cm, P?=?.001). School-based integrated curriculum and pedometer interventions provide a feasible and effective mechanism for increasing habitual PA in primary school children from deprived SA backgrounds. 相似文献
19.
从"飞石索"看纳西族原始体育的起源 总被引：1，自引：1，他引：0
纳西族因其独特的地理位置和民族发展历史,至今得以保存产生于旧石器中期的复合工具--"飞石索",并在纳西族古老的东巴经及民俗活动中大量保存了与"飞石索"密切相关的民间传说、原始宗教仪式及娱乐活动,为揭开纳西族原始体育起源之谜,提供丰厚的材料.运用文化人类学、历史学的理论和研究方法,分析整理田野调查、查阅文献收集到的大量资料,再现了"飞石索"从远古狩猎、战争工具.通过原始巫术逐渐演变成原始体育并流传至今的发展变化过程,并提出了纳西族原始体育起源于巫术的观点. 相似文献
20.
Brittany Star Overstreet Scott E. Crouter George A. Butler Cary M. Springer David R. Bassett 《Measurement in physical education and exercise science》2016,20(3):140-145
The purpose of this article was to examine the validity of self-reported pedometer steps/day. Forty-seven participants were provided a New Lifestyles NL-2000 (NL-2000; Lees Summit, MO, USA) pedometer and a physical activity (PA) diary for 3 weeks, but not informed of the data-storing capabilities. For weeks 2 and 3, each participant was given a step goal of 3,000 steps/day above week 1 average. A 2 × 3 repeated measures analysis of variance (ANOVA) was used to examine differences between reported steps/day. Bland–Altman plots assessed the mean bias and limits of agreement between reporting methods. Mean self-reported and NL-2000 steps/day were 9,264 ± 3,555 and 8,971 ± 3,590 steps/day (n = 26, p > .05). Mean biases were 216 ± 1,753 (week 1), –506 ± 1,355 (week 2), and –590 ± 1,360 (week 3) steps/day. Negative mean bias values indicate higher self-reported steps/day. Mean steps/day were similar between recording methods, but large differences were observed among individuals, suggesting self-reported steps/day may be valid for PA research at the population level, but not the individual level. 相似文献