International Journal of Sport and Health Science最新文献_第8页

The Effects of Differences in the Timing of Ice Ingestion before Exercise on Endurance Cycling Capacity, Body Temperature and Perceptual Sensation in the Heat* 运动前不同食冰时间对热环境下耐力循环能力、体温和知觉的影响*

International Journal of Sport and Health Science Pub Date : 2016-07-07 DOI: 10.5432/IJSHS.201615

Takashi Naito, Y. Yamaguchi, T. Ogaki

{"title":"The Effects of Differences in the Timing of Ice Ingestion before Exercise on Endurance Cycling Capacity, Body Temperature and Perceptual Sensation in the Heat*","authors":"Takashi Naito, Y. Yamaguchi, T. Ogaki","doi":"10.5432/IJSHS.201615","DOIUrl":"https://doi.org/10.5432/IJSHS.201615","url":null,"abstract":"The timing at which ice is ingested prior to exercise may be important for optimizing internal pre-cooling eŠects. However, previous reports have not evaluated the in‰uence of timing of ice ingestion on internal pre-cooling in the heat. The purpose of this study was to investigate the eŠects of diŠerences in the timing of ice ingestion on endurance cycling capacity, body temperature and perceptional sensation in the heat. Seven healthy males [age ＝ 26 ± 2 yr, height ＝ 1.71 ± 0.04 m, body mass ＝ 63.6 ± 2.8 kg, body surface area ＝ 1.74 ± 0.03 m 2 , maximal oxygen uptake ( _VO 2 max) ＝ 49.7 ± 4.4 mL ･ kg － 1 ･ min － 1 ] ingested ice for 30 minutes before exercise under three separate conditions: ice ingestion at 30- (30D), 15- (15D) and 5- (5D) minute intervals. The total volume of ice ingestion was identical during 30D, 15D, 5D and was divided equally by the number of drinking times in each experiment. Subjects performed cycling to exhaustion at 70 z _VO 2 max in a hot environment (35 9 C room temperature and 30 z relative humidity). Rating of thermal sensation was lower in 5D at 15 min period during exercise than those under the other conditions ( p ＜ .05). Rating of perceived exertion was lower in 5D at 20 and 25 min periods during exercise than those under the other conditions ( p ＜ .05). There were no signiˆcant diŠerences in rectal temperature, mean skin temperature or exhaustion time between the three conditions. These results suggest that there are no signiˆcant diŠerences in exhaustion time and rectal temperature if the total volume of ice ingestion is identical, although the ice ingestion until just before exercise attenuated the perceptual sensation during exercise in a hot environment.","PeriodicalId":341890,"journal":{"name":"International Journal of Sport and Health Science","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114370667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Association Between Previous Experience of Strength Training Under Appropriate Supervision and Knowledge of Squats Among University Students who Exercise Regularly 大学生在适当的监督下进行力量训练的经验与深蹲知识的关系

International Journal of Sport and Health Science Pub Date : 2016-06-28 DOI: 10.5432/IJSHS.201606

K. Oshita, G. Hagiwara, Takafumi Monma, Tempei Tsuno, K. Koizumi, Yasuhumi Oyama, K. Yamaguchi, Tomoki Tashiro, Kyotaro Funatsu

引用次数: 2

Community-based Management: Developing the Fan Base of Professional Baseball Teams 社区管理:发展职业棒球队的球迷基础

International Journal of Sport and Health Science Pub Date : 2016-06-28 DOI: 10.5432/IJSHS.201526

Yukako Wada, Hirotaka Matsuoka

{"title":"Community-based Management: Developing the Fan Base of Professional Baseball Teams","authors":"Yukako Wada, Hirotaka Matsuoka","doi":"10.5432/IJSHS.201526","DOIUrl":"https://doi.org/10.5432/IJSHS.201526","url":null,"abstract":"The purpose of this study is to examine the concept of community-based management (CBM) and to elucidate the in‰uential factors formulating the strategies for developing the fan base of professional baseball teams. Semi-structured interviews were conducted among staŠ members of four Paciˆc League teams on having regional team names and adopting ``community-based management'' or ``regional outreach activities'' in their team philosophy. In‰uenced by the reorganization of the Nippon Professional Baseball organization, the Paciˆc League teams have focused on a speciˆc community or region, rather than the entire nation, for better management. Teams are concentrating on garnering customer loyalty from avid fan club members and repeat customers, and then trying to retain and attract customers while expanding the customer target area in their community. The community-based approach implies developing a bond between local residents and teams. Through this study, CBM is deˆned as ``developing consumers' attachment to and building their bond with a team through various local promotional or outreach activities within their speciˆc area.'' There are two signiˆcant factors emerged that in‰uence formulating the strategies for developing the fan base: (1) agreements between teams and stadium proprietors, and (2) relationships with local promotional vehicles such as local media companies and a railway company.","PeriodicalId":341890,"journal":{"name":"International Journal of Sport and Health Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129470475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in Life Skills of Top College Athletes over Four Years and Its Relation to Career Outcomes 高校优秀运动员四年生活技能变化及其与职业结局的关系

International Journal of Sport and Health Science Pub Date : 2016-06-04 DOI: 10.5432/IJSHS.201516

S. Shimizu, Kohei Shimamoto, T. Kukidome, Hironobu Tsuchiya

引用次数: 3

Effects of Body-weight Squat Training on Muscular Size, Strength and Balance Ability in Physically Frail Older Adults 体重深蹲训练对体弱老年人肌肉大小、力量和平衡能力的影响

International Journal of Sport and Health Science Pub Date : 2016-05-31 DOI: 10.5432/IJSHS.201504

Eiji Fujita, N. Takeshima, Yoshiji Kato, Daisuke Koizumi, M. Narita, Hiroki Nakamoto, M. Rogers

引用次数: 6

Blood Glucose and Lactate Kinetics during an Incremental Running Test in Endurance Runners 耐力跑者在增量跑步试验中的血糖和乳酸动力学

International Journal of Sport and Health Science Pub Date : 2016-05-24 DOI: 10.5432/IJSHS.201517

Kazuteru Nakamura, Y. Sengoku, H. Ogata, Koichi Watanabe, Yusuke Shirai, Y. Nabekura

{"title":"Blood Glucose and Lactate Kinetics during an Incremental Running Test in Endurance Runners","authors":"Kazuteru Nakamura, Y. Sengoku, H. Ogata, Koichi Watanabe, Yusuke Shirai, Y. Nabekura","doi":"10.5432/IJSHS.201517","DOIUrl":"https://doi.org/10.5432/IJSHS.201517","url":null,"abstract":"Aim : We examined the diŠerence in blood glucose and lactate kinetics between highly and moderately trained runners during an incremental running test, and to examine the relationship between GT and LT in diŠerent training states. Methods : Eight highly trained (25.9 ± 5.6 years, 167.6 ± 5.2 cm, 57.5 ± 6.0 kg) and eight moderately trained (23.8 ± 3.7 years, 173.6 ± 3.8 cm, 62.4 ± 4.6 kg) male runners performed the incremental running test. Each stage of the test consisted of running for 4 min on a treadmill. The velocity was increased by 0.6 km ･ h － 1 ･ stage － 1 until exhaustion. Blood glucose and lactate were measured after each stage, and GT and LT were determined using the log-log method. Results : During the incremental running test, blood lactate increased signiˆcantly in both groups, whereas blood glucose increased signiˆcantly only in highly trained runners. In highly trained runners, LT and GT did not diŠer signiˆcantly (15.2 ± 1.0 and 15.7 ± 1.3 km ･ h － 1 , respectively; p ＝ 0.08), but were signiˆcantly correlated ( r ＝ 0.906, p ＜ 0.01). In moderately trained runners, however, LT was signiˆcantly lower than GT (12.1 ± 0.8 and 13.7 ± 1.6 km ･ h － 1 , respectively; p ＝ 0.02), and no signiˆcant correlation was observed between LT and GT ( r ＝ 0.596, p ＝ 0.16). Conclusions : The relationship between blood glucose and lactate kinetics diŠers according to training state, so that the relationship of blood glucose and lactate kinetics and appearance pattern of GT re‰ects a diŠerent exercise capacity than that of LT. were analyzed in seven subjects.","PeriodicalId":341890,"journal":{"name":"International Journal of Sport and Health Science","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126750514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Herpes Zoster in a World Class Triathlete: A Case Report and Evaluation of Training Schedules in Relation to Immune Status 世界级铁人三项运动员的带状疱疹:一个病例报告和与免疫状态相关的训练计划的评估

International Journal of Sport and Health Science Pub Date : 2015-12-14 DOI: 10.5432/IJSHS.201420

L. Lai, J. Shilt, John S. Georgy

引用次数: 0

Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics 球棒握拍位置变化对棒球棒挥棒时机、地面反作用力和肌肉激活特性的影响

International Journal of Sport and Health Science Pub Date : 2015-10-28 DOI: 10.5432/IJSHS.201519

Y. Ohta, Hiroki Nakamoto

{"title":"Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics","authors":"Y. Ohta, Hiroki Nakamoto","doi":"10.5432/IJSHS.201519","DOIUrl":"https://doi.org/10.5432/IJSHS.201519","url":null,"abstract":"This study aimed to clarify the eŠects of changing to a short bat grip position from the long bat grip position on baseball bat swing timing, peak ground reaction force with the front leg, and activation of the upper and lower limb muscles. Nine male college baseball players participated in this study. By using a batting simulator, the coincident timing task was to swing the bat coincidentally with the arrival timing of a moving target by using the long or short bat grip position. The batter performed 10 sets of four swings for a total of 40 swings for the coincident timing task. During the four swings, the batter swung the bat by using the long grip position in the ˆrst, second, and fourth swings. Only in the third swing did the batter use the short grip position. The ground reaction force with the front leg was measured, and electromyograms of the upper and lower limb muscles were obtained during the coincident timing task. Our results indicated no signiˆcant diŠerences in absolute and variable timing errors between the long and short bat grip positions. In contrast, the constant timing error was signiˆcantly increased with the short bat grip position. Moreover, the time to peak ground reaction force and time to peak muscle activation of both the upper and lower limb muscles were signiˆcantly delayed when the short bat grip position was employed. Signiˆcant positive relationships were observed between the constant timing error and time to peak ground reaction force, which showed diŠerences between the second and third swings. No signiˆcant diŠerence in swing time was observed between the long and short bat grip positions. These ˆndings indicate that changing to the short bat grip position from the long bat grip position will not improve the batter's swing timing. Furthermore, changing to the short bat grip position could delay the batter's swing timing, probably because the change causes a delay in swing preparation.","PeriodicalId":341890,"journal":{"name":"International Journal of Sport and Health Science","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125383534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of Low-intensity Exercise in the Morning on Afternoon Exercise Performance 上午低强度运动对下午运动表现的影响

International Journal of Sport and Health Science Pub Date : 2015-10-09 DOI: 10.5432/IJSHS.201511

Manabu Sakai, Kazuki Nishimura, K. Nagasaki, H. Yamaguchi, A. Yoshioka, S. Onodera, N. Takamoto

{"title":"Effects of Low-intensity Exercise in the Morning on Afternoon Exercise Performance","authors":"Manabu Sakai, Kazuki Nishimura, K. Nagasaki, H. Yamaguchi, A. Yoshioka, S. Onodera, N. Takamoto","doi":"10.5432/IJSHS.201511","DOIUrl":"https://doi.org/10.5432/IJSHS.201511","url":null,"abstract":"This study examined the eŠects of low-intensity exercise in the morning on exercise performance in the afternoon. Fifteen healthy men were exposed to two measurement conditions: 30 min of bicycle exercise at 40 z of maximum oxygen consumption (morning exercise) or rest in the sitting posture (control) at 8:30 AM. Physiological parameters were measured at 4:00 PM with the participant at rest in the supine position. Physical ˆtness tests and anaerobic power tests began at 4:30 PM. The two conditions demonstrated no signiˆcant diŠerence in heart rate, systolic or diastolic blood pressure, double product, total power of R-R interval variability, ln HF (index of cardiovascular parasympathetic nervous system activity), or oral temperature. Morning exercise was associated with signiˆcantly better 20-m shuttle run, standing long jump, and sit-and-reach performance compared to the control condition. No signiˆcant diŠerences in other physical ˆtness tests were observed. Thus, participants had signiˆcantly higher total physical ˆtness test scores and signiˆcantly greater maximum anaerobic power under the morning exercise condition. Our results indicate that low-intensity exercise in the morning might enhance afternoon exercise performance and may be considered an eŠective conditioning method on the day of a sporting event.","PeriodicalId":341890,"journal":{"name":"International Journal of Sport and Health Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130264206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Relationships between the Normative Performance Profiles and the Winning of Sets in Women's Singles Matches of Professional Tennis 职业网球女单规范性表现与局胜的关系

International Journal of Sport and Health Science Pub Date : 2015-05-23 DOI: 10.5432/IJSHS.201506

Hiroo Takahashi, S. Murakami, T. Kitamura, T. Wada, Akira Maeda

引用次数: 0