Medicina sportiva (Krakow, Poland : English ed.)最新文献_第8页

Validity of Self-Reported Dietary Intakes in Young Men and Women with Different Physical Activity 不同体力活动青年男女自我报告饮食摄入量的有效性

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-09-01 DOI: 10.2478/V10036-011-0020-2

G. Lutosławska, K. Mazurek, A. Kęska, A. Czajkowska, P. Żmijewski

引用次数: 3

Hydration status of male football players across a week of training and competition. 男子足球运动员一周训练和比赛的补水状况。

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-09-01 DOI: 10.2478/V10036-011-0021-1

Andrew J. Pickering, N. Rehrer, I. Hellemans

引用次数: 3

Physical Activity in Relation to Affective States and Labor Anxiety in Pregnant Women 孕妇体力活动与情感状态和劳动焦虑的关系

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-09-01 DOI: 10.2478/V10036-011-0019-8

M. Guszkowska

引用次数: 10

EFFECT OF CAFFEINE ON FATIGUE DURING SUBMAXIMAL ISOMETRIC CONTRACTIONS AT DIFFERENT KNEE ANGLES 咖啡因对不同膝关节角度次最大等距收缩时疲劳的影响

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-07-01 DOI: 10.2478/V10036-011-0027-8

M. Willems, D. Madigan

{"title":"EFFECT OF CAFFEINE ON FATIGUE DURING SUBMAXIMAL ISOMETRIC CONTRACTIONS AT DIFFERENT KNEE ANGLES","authors":"M. Willems, D. Madigan","doi":"10.2478/V10036-011-0027-8","DOIUrl":"https://doi.org/10.2478/V10036-011-0027-8","url":null,"abstract":"Introduction: In the knee extensors, the time to fatigue for intermittent isometric contractions can be increased by caffeine. Fatigue is muscle length dependent. Aim: We examined the effect of caffeine on fatigue of knee extensors at two joint angles. Methods: Ten male subjects (24±3 yr, 177±5 cm, 75±6 kg) with low caffeine intake (<200 mg·wk -1 ) volunteered. Study design was double-blind and counter-balanced. Subjects were administered caffeine (6 mg·kg -1 ) added to a non-caloric beverage or placebo, 1 hr before testing. Maximal voluntary isometric torque (MVIT) and intermittent contractions at 50%MVIT (15 s contraction, 5 s rest) were performed at knee angles of 30° and 90° (short and long length) until exhaustion. Fatigue was quantified by measurement of the MVIT 20 s post exhaustion. Surface EMG of m.vastus lateralis was analysed for root mean square (RMS). Data were analysed with 2-way ANOVA and paired t-tests with significance set at P<0.05. Results: MVIT values were similar for caffeine and placebo at both knee angles. Time to fatigue was higher at 30° for both conditions. Caffeine increased the time to fatigue, being equal by 15% (30°) and 13% (90°). The fatigue index was similar for both conditions and knee angles. Changes in RMS were similar for both conditions and knee angles [e.g. 30°: 154±14% (caffeine), 154±16% (placebo)]. Conclusions: Caffeine enhanced the time to fatigue during submaximal intermittent isometric contractions at different knee angles. However, potential mechanism(s) for the enhanced time to fatigue by caffeine do not seem to be muscle length dependent.","PeriodicalId":93474,"journal":{"name":"Medicina sportiva (Krakow, Poland : English ed.)","volume":"76 1","pages":"194-200"},"PeriodicalIF":0.0,"publicationDate":"2011-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86181393","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: 4

Physical Activity Patterns and Daily Steps in Brazilian Pregnant Women's Sample 巴西孕妇样本的身体活动模式和每日步数

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0008-Y

P. C. Teixeira, M. Poudevigne, S. Matsudo, V. Matsudo

{"title":"Physical Activity Patterns and Daily Steps in Brazilian Pregnant Women's Sample","authors":"P. C. Teixeira, M. Poudevigne, S. Matsudo, V. Matsudo","doi":"10.2478/V10036-011-0008-Y","DOIUrl":"https://doi.org/10.2478/V10036-011-0008-Y","url":null,"abstract":"Purpose: to analyze the physical activity (PA) level of pregnant women (PW) according to their gestational trimester and to evaluate multiple measurements of PA. Methods: 122 PW, 26.5 ± 5.5 years old, and between the 4th and 37th week of pregnancy participated. PA was evaluated by levels of frequency and intensity, duration of walking, and moderate and vigorous PA; and based on the calculation in METs, determined by IPAQ and a pedometer. Data analysis was done by the Kruskall-Wallis, significance level of P<.05. Results: a significant decrease was found in the duration of moderate PA in the second-trimester group when compared to the duration of the first and the third trimester groups. There were no differences in walking (4.8 days/week) and moderate PA frequency (3.1 days/week) on average across trimesters. When considering the weekly number of steps, PW had in the first trimester taken an average of 10,789.0 ± 5,676.8 steps, in the second trimester 6,812.1 ± 4,092.4 steps, and in the third trimester 6,746.8 ± 3,572.0 steps. There was no significant difference in the weekly total number of steps between trimesters. Conclusion: the PA level of PW, using IPAQ or pedometer, was similar regardless of the trimester of the pregnancy.","PeriodicalId":93474,"journal":{"name":"Medicina sportiva (Krakow, Poland : English ed.)","volume":"20 1","pages":"44-50"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74158098","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 High and Low Concentration Carbohydrate Solutions on Endurance Performance Consumed Prior to and During Intense, Intermittent Exercise 高浓度和低浓度碳水化合物溶液对高强度间歇运动前后耐力表现的影响

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0011-3

L. Ingle, C. Cooke, R. King

{"title":"Effects of High and Low Concentration Carbohydrate Solutions on Endurance Performance Consumed Prior to and During Intense, Intermittent Exercise","authors":"L. Ingle, C. Cooke, R. King","doi":"10.2478/V10036-011-0011-3","DOIUrl":"https://doi.org/10.2478/V10036-011-0011-3","url":null,"abstract":"The aim of the study was to compare the effects of high and low concentration carbohydrate (CHO) solutions on the endurance performance of recreational, male soccer players consumed prior to and during intense, intermittent exercise. Methods: Seven participants consumed four different fluids using a randomised double blind procedure, an 8% carbohydrate electrolyte solution (2.5% galactose and 5.5% glucose polymer) (8% CES), a 2.5% carbohydrate (2.5% galactose) electrolyte solution (2.5% CES), an electrolyte solution (E) and water (W). A further three participants acted as controls by consuming E only on four occasions. We used the Loughborough Intermittent Shuttle Test (LIST) to simulate the intense, intermittent nature of a soccer match. The LIST protocol consists of two parts: Part A required walking, jogging and sprinting, utilising a 20 m shuttle procedure, for 75 min, recovering for 3 min every 15 min. Part B required participants to perform intermittent running to exhaustion, alternating between 55% and 95% of their predicted maximal oxygen uptake. Each beverage was administered immediately prior to exercise (5 ml · kg-1) and every 15 min thereafter (2 ml · kg-1) until the conclusion of Part A. Results: The performance run times for Part B (mean ± SD) were 16.3 ± 1.5 min (8% CES), 11.1 ± 1.2 min (2.5% CES), 10.0 ± 1.0 min (E) and 9.3 ± 0.9 min (W). The 8% CES beverage produced a significantly greater time to exhaustion (Part B) than the other drinks (5.0 ± 1.5 min, P<0.05). Conclusions: A high CHO concentration formulation (8% CES) is associated with a significant increase in endurance performance during intense, intermittent exercise in recreational, male soccer players.","PeriodicalId":93474,"journal":{"name":"Medicina sportiva (Krakow, Poland : English ed.)","volume":"5 1","pages":"62-67"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86100344","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

The Effect of 8 Weeks Core Stabilization Training Program on Balance in Deaf Students 8周核心稳定训练对聋哑学生平衡能力的影响

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0010-4

Famin Farzaneh Hessari, A. Norasteh, H. Daneshmandi, S. M. Ortakand

引用次数: 24

The evaluation of nutritional habits and nutritional status of female athletes using and not using nutritional supplements. 使用和不使用营养补充剂的女运动员营养习惯和营养状况的评价。

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0009-X

K. Łagowska, J. Jeszka

引用次数: 2

CARDIORESPIRATORY POWER AND FORCE-VELOCITY CHARACTERISTICS IN ROAD CYCLING: THE EFFECT OF AGING AND UNDERLYING PHYSIOLOGICAL MECHANISMS 公路骑行中心肺功能和力-速度特征:衰老的影响和潜在的生理机制

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0012-2

P. Nikolaïdis, Vassilios Papadopoulos

{"title":"CARDIORESPIRATORY POWER AND FORCE-VELOCITY CHARACTERISTICS IN ROAD CYCLING: THE EFFECT OF AGING AND UNDERLYING PHYSIOLOGICAL MECHANISMS","authors":"P. Nikolaïdis, Vassilios Papadopoulos","doi":"10.2478/V10036-011-0012-2","DOIUrl":"https://doi.org/10.2478/V10036-011-0012-2","url":null,"abstract":"Introduction: Although a considerable amount of research is available describing the physiological characteristics of competitive adolescent and senior level cyclists, research describing the same characteristics in master level cyclists is rare. Aim of this study was to compare cardiorespiratory power and force-velocity characteristics between two groups, one of master and one of senior level cyclists in an attempt to examine the effect of aging on these parameters. Methods: Eighteen master (43.25±5.37 y) and 13 senior level male road cyclists (28.78±4.95 y) were examined for anthropometric characteristics, body composition, and they performed the anaerobic force-velocity test and a graded exercise test to determine maximal oxygen consumption and anaerobic threshold. Results: Maximal heart rate (accordingly 176.9±13.8 bpm vs. 189.1±8.3 bpm) and heart rate at anaerobic threshold (157±13.9 bpm vs. 170.5±8.3 bpm) were the only parameters that differed significantly (P<0.001). Conclusions: Based on these results, it was concluded that optimal training could attenuate the decline of physiological parameters in cyclists until the beginning of the 5 th decade of human life. In addition, considering the variability of heart rate values (either maximal or at anaerobic threshold), i.e. wider range of scores in master than in senior level participants, it was suggested the need for individualized data, especially in master level road cyclists.","PeriodicalId":93474,"journal":{"name":"Medicina sportiva (Krakow, Poland : English ed.)","volume":"04 1","pages":"68-74"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80178495","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: 4

Physical activity levels during a 6-week, school-based, active videogaming intervention using the gamercize power stepper in British children 以英国儿童为研究对象，以学校为基础，积极参与电子游戏干预6周期间的身体活动水平

Medicina sportiva (Krakow, Poland : English ed.) Pub Date : 2011-06-01 DOI: 10.2478/V10036-011-0014-0

M. Duncan, S. Birch, L. Woodfield, J. Hankey

{"title":"Physical activity levels during a 6-week, school-based, active videogaming intervention using the gamercize power stepper in British children","authors":"M. Duncan, S. Birch, L. Woodfield, J. Hankey","doi":"10.2478/V10036-011-0014-0","DOIUrl":"https://doi.org/10.2478/V10036-011-0014-0","url":null,"abstract":"Introduction: Active video games have been purported to offer an alternative means by which children can be physically active but few data have examined this issue in ecologically valid settings. This study sought to assess physical activity levels during active videogame play and compare this to ‘free play’ associated with recess activity in a sample of British primary school children. Methods: Forty children (ages 10-11, 20 boys, 20 girls) from central England were randomly selected to participate in a 6 week, lunchbreak based, active video gaming intervention (n=20) or act as controls (n=20). Repeated measures analysis of covariance (controlling for body mass index) was used to examine any differences in physical activity, determined by pedometry and heart rate monitoring. Results: Children in the intervention accumulated significantly greater steps/min than controls during the first week of the intervention. The steps/min values were not significantly different at the mid point or during the last week of the assessment period. Irrespective of time point, children engaging in active video game play spent a lesser percentage of time engaged in MVPA than controls undertaking ‘traditional’ recess activity. Conclusion: Active video game physical activity using the Gamercize power stepper appears to be similar to physical activity levels during traditional school lunchbreak over a 6 week period. Active videogaming may therefore provide an alternative means to engage children in physical activity in the school setting.","PeriodicalId":93474,"journal":{"name":"Medicina sportiva (Krakow, Poland : English ed.)","volume":"62 1","pages":"81-87"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83709627","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: 20