Journal of Sports Medicine & Doping Studies最新文献_第3页

Time-Motion Analysis of Young Competitive Surfers: Southern Portugal 年轻冲浪运动员的时间运动分析:葡萄牙南部

Journal of Sports Medicine & Doping Studies Pub Date : 2017-08-17 DOI: 10.4172/2161-0673.1000194

B. Minghelli, Sara Graça, Sara Paulino, I. Sousa

{"title":"Time-Motion Analysis of Young Competitive Surfers: Southern Portugal","authors":"B. Minghelli, Sara Graça, Sara Paulino, I. Sousa","doi":"10.4172/2161-0673.1000194","DOIUrl":"https://doi.org/10.4172/2161-0673.1000194","url":null,"abstract":"Introduction: Time-motion analysis should be an integral part of the coaching process in competitive surf to help design training programs, as well as maximize athlete performance. There are a few studies that analyzed the timemotion of surfer activities during competition. Thus, the aim of this study was evaluate each activity’s time made by surfers during the heat competition, in order to account for the time spent in each surf activity. \u0000Methods: Forty-two young Portuguese surfers, both males and females, residing in southern Portugal, participated in the championship of the “School Sport” of the Algarve region. Each surfer was individually videoed for the entire duration of the heat using a video camera. The V-Note Video Analysis Software 2.1.2 was used to evaluate the movement´s time made by each surfer during the competition, in order to account for the time spent in each activity. The activities that the surfers were evaluated included: paddling; sprint paddle for wave; stationary; wave riding; miscellaneous (e.g. duck diving, recovery of the board, and other). \u0000Results: The surfers were paddling 58%, stationary 42%, sprint paddle for wave 3.8%, and wave riding 3.1% of the total time. The average of surfing activities were 15.2 seconds for paddling, 1.5 seconds to sprint paddle for wave, 8.8 seconds for stationary period, 4.4 for wave riding, and18.2 for miscellaneous activities. \u0000Conclusion: The data from this study revealed that, for this sample and competition analyzed, the activities that had a greater percentage of time included the paddling and miscellaneous activities. The results of this study show that surfing is an intermittent activity that is characterized by large variability of each activity that was analyzed, and these surfing activities seems to be controlled more by environmental factors than by surfer attitude.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"54 1","pages":"6-10"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87867277","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

Low Intensity Low Frequency Ultrasound Surface Acoustic WaveTreatment for Metatarsal Fractures 低强度低频超声表面声波治疗跖骨骨折

Journal of Sports Medicine & Doping Studies Pub Date : 2017-08-17 DOI: 10.4172/2161-0673.1000193

J. Rosenblum, S. Rosenblum, A. Karpf

引用次数: 1

Anti-doping Awareness among British and Japanese Judo Coaches 英国和日本柔道教练的反兴奋剂意识

Journal of Sports Medicine & Doping Studies Pub Date : 2017-04-14 DOI: 10.4172/2161-0673.1000191

Y. Tanabe, Colin Mclver, Joyce Heron, Satomi Suzuki, T. Akama

{"title":"Anti-doping Awareness among British and Japanese Judo Coaches","authors":"Y. Tanabe, Colin Mclver, Joyce Heron, Satomi Suzuki, T. Akama","doi":"10.4172/2161-0673.1000191","DOIUrl":"https://doi.org/10.4172/2161-0673.1000191","url":null,"abstract":"Objective: To reveal the understanding among judo coaches from different countries on anti-doping, and their understanding of how this is intrinsically valuable to sport. \u0000Design: Survey study. Participants: 74 British coaches (UK coaches) and 66 Japanese coaches (JPN coaches) certified by the British Judo Association or the All Japan Judo Federation, as appropriate. \u0000Results: Most of both countries' coaches knew National Anti-Doping Organization and World Anti-Doping Agency. Almost of JPN coaches had attended an anti-doping workshop, however many of UK coaches had never attended such a workshop. There are aimed to compare the two countries’ views of doping along the social, educational, ethical, and health-related aspects. The results from Question 7.1 (I agree with the act of doping), Question 7.6 (Doping enables judoka to improve their performance), and Question 7.9 (Prohibited substances are possibly included in certain legal medicines and food supplements) were significantly different between the UK coaches and JPN coaches groups. \u0000Conclusions: Judo coaches around the world should be educated on anti-doping regimes.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"309 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77788752","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

Energy Demands and Metabolic Equivalents (METS) in U-19 Basketball Refereeing During Official Games U-19篮球裁判在正式比赛中的能量需求和代谢当量(METS)

Journal of Sports Medicine & Doping Studies Pub Date : 2017-04-07 DOI: 10.4172/2161-0673.1000190

M. A. Nabli, N. B. Abdelkrim, C. Castagna, I. Jabri, Tahar Batikh, K. Chamari

{"title":"Energy Demands and Metabolic Equivalents (METS) in U-19 Basketball Refereeing During Official Games","authors":"M. A. Nabli, N. B. Abdelkrim, C. Castagna, I. Jabri, Tahar Batikh, K. Chamari","doi":"10.4172/2161-0673.1000190","DOIUrl":"https://doi.org/10.4172/2161-0673.1000190","url":null,"abstract":"The metabolic demands among U-19 basketball players were studied; however, physical and physiological demands of U-19 basketball refereeing during competition are rather scant. The aim of this study was to analyze the energy expenditure (EE) and the exercise intensity of basketball refereeing during official game and determined as Metabolic Equivalent (METs). Sixteen elite level basketball referees were studied during U-19 basketball games (n=8) for time motion analyses (TMA). The EE data were calculated, using specific equations, from the time spent by the referee in each exercise-intensity zone. During game, referees spent a mean EE of 504.4 ± 77.7 kcal. A significant difference was observed between 113.5 ± 18.2 kcal in the 1st quarter (Q1) and 137 ± 27.5 kcal in the Q4 (p=0.007). The averaged EE (~5 kcal.kg-1.h-1) corresponded to “moderate energy intensity” (~5 METs) with a large contribution of the aerobic energy pathway. In all, during 88% of game the intensity was equal or lower than 3.8 METs and in 12% it was higher than 9.8 METs which were considered as low to high-intensity thresholds, respectively. The energetic profile studied in this research confirms that basketball refereeing may be regarded as a clearly intermittent-activity mode with a predominantly aerobic metabolism solicitation. Referees officiating in U-19 basketball games should carry out a physical conditioning regime that prepares them for such an effort.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"39 1","pages":"6-11"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77344747","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: 9

Effect of One and Two Split Aerobic Exercise Sessions on Circadian Rhythm of Heart Rate and Blood Pressure 一次和两次分割有氧运动对心率和血压昼夜节律的影响

Journal of Sports Medicine & Doping Studies Pub Date : 2017-03-13 DOI: 10.4172/2161-0673.1000189

S. Nikookheslat, V. S. Sarraf, Mahmoud Ahmadzadeh

{"title":"Effect of One and Two Split Aerobic Exercise Sessions on Circadian Rhythm of Heart Rate and Blood Pressure","authors":"S. Nikookheslat, V. S. Sarraf, Mahmoud Ahmadzadeh","doi":"10.4172/2161-0673.1000189","DOIUrl":"https://doi.org/10.4172/2161-0673.1000189","url":null,"abstract":"The present study investigated the circadian rhythm variations of heart rate and blood pressure due to 1 (60 minutes) and 2 split exercise sessions (2 × 30 minutes) a day. Fourteen healthy students from the University of Tabriz volunteered to participate in current study. Two groups of subjects in a crossover design were randomly allocated as group I (one session per day, twice a day) and vice versa for group II. Having completed the test (treadmill running with an intensity of 70 per cent of Maximum Heart rate), heart rate and blood pressure (both systolic and diastolic) were measured every two hours for 24 hours. Repeated measure (ANOVA) was used for analysis. Each of variables showed normal circadian rhythm. Compared to two split exercise sessions a day, one session a day demonstrated that the level of heart rate circadian rhythm has been set at a rate of five percent below. Circadian rhythm of systolic and diastolic blood pressure in the two split sessions compared with one session a day tended to be set at a lower level and higher level respectively. One aerobic exercise session compared to two split sessions a day with the same total time of exercise a day may decrease systolic blood pressure and heart rate within 24 hours following aerobic treadmill running exercise. Split exercise session could be an appropriate approach for increasing more calories and lowering blood pressure among health seekers while it may delay recovery for the next day training or competition for professional athletes.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"100 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80653697","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

The Levels of C-Reactive Protein, Malondialdehyde and Absolute Lymphocyte Counts in Pre and Post-Acute Exercise 急性运动前后c -反应蛋白、丙二醛和绝对淋巴细胞计数水平的变化

Journal of Sports Medicine & Doping Studies Pub Date : 2017-01-25 DOI: 10.4172/2161-0673.1000188

E. F. Alfred, Akinshipe Benson Olu, E. I. Joy, J. Sunday, A. Dennis, Etikerentse Martins

引用次数: 5

Left Ventricular Function Improve after Bench Press: A Speckle Tracking and 3D Echocardiography Study 卧推后左心室功能改善:斑点跟踪和三维超声心动图研究

Journal of Sports Medicine & Doping Studies Pub Date : 2017-01-01 DOI: 10.4172/2161-0673.1000186

M. R. Bailén, C. Jesus

{"title":"Left Ventricular Function Improve after Bench Press: A Speckle Tracking and 3D Echocardiography Study","authors":"M. R. Bailén, C. Jesus","doi":"10.4172/2161-0673.1000186","DOIUrl":"https://doi.org/10.4172/2161-0673.1000186","url":null,"abstract":"Background: The speckle tracking echocardiography is a powerful tool that is expanding knowledge on cardiovascular physiology. At present fitness is an increasing sport, and the bench press is a typical exercise. The aim of this study was to investigate by speckle tracking echocardiography the systolic and diastolic properties of the left ventricle during bench press. Methods: Interventional study. We perform an echocardiogram before, during and immediately after a bench press. During the bench press we assessed the changes suffered in systolic and diastolic functions. Speckle tracking parameter and 3D volume were calculated for left ventricle. Results: In the study were included 59 male athletes with mean age 34.28 ± 9.54 years. Left ventricle ejection fraction is increased by 2D and 3D echocardiography (0.58 ± 0.07 versus 0.62 ± 0.07, p=0.017). The strain, strain rate, and systolic and diastolic velocities of longitudinal left ventricular fibers (by Speckle Tracking) are higher during exercise [(Strain -21.1 ± 4.09 versus -27.28 ± 3.73, p<0.01) (Strain Rate -1.48 ± 0,30 versus -2.30 ± 0.57; p<0.0001]. The E/E' ratio was unchanged but improved diastolic function improve by Speckle Tracking echocardiography. After the exercise there was more left intraventricular synchrony. Strength training degree could be associated with compliance and synchrony of left ventricle. Conclusion: During bench press a discrete increase in ejection fraction and large variations in myocardial deformation occurs. Diastolic function is unchanged by 2D echocardiography. Strength training degree could be associated with compliance and synchrony of left ventricle.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82091552","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

Cause and Management of Hamstring Injuries in College Sprinters - AQualitative Approach 大学短跑运动员腿筋损伤的原因和处理——定性方法

Journal of Sports Medicine & Doping Studies Pub Date : 2017-01-01 DOI: 10.4172/2161-0673.1000192

Amir Shah, Muhammad Talha Iftakhar

引用次数: 0

Urine Fingerprints of Stanozolol Treated Horses by Liquid Chromatography High Resolution Mass Spectrometry 用液相色谱-高分辨质谱法测定施他诺唑尔处理过的马的尿液指纹图谱

Journal of Sports Medicine & Doping Studies Pub Date : 2017-01-01 DOI: 10.4172/2161-0673.1000196

Natali Stojiljkovic, S. Bubanj, M. Djordjevic, S. Mazić, C. Junot, M. Popot, Y. Bonnaire, J. Tabet

{"title":"Urine Fingerprints of Stanozolol Treated Horses by Liquid Chromatography High Resolution Mass Spectrometry","authors":"Natali Stojiljkovic, S. Bubanj, M. Djordjevic, S. Mazić, C. Junot, M. Popot, Y. Bonnaire, J. Tabet","doi":"10.4172/2161-0673.1000196","DOIUrl":"https://doi.org/10.4172/2161-0673.1000196","url":null,"abstract":"The current detection methods for stanozolol are all based on targeted approach. The present study aimed to assess the global biological effect of stanozolol-treatment by means of chemometric models, after generating and comparing horse urine LC-HRMS fingerprints collected from control and stanozolol-treated horses. The animal study was conducted according to an ethically approved protocol at two different places in France: Chamberet and Coye la Foret. The total duration of the animal phase was seven months and only females were selected to partake. The sixteen mares in this study were not actively racing horses, but were in good physical condition. SIMCA-P+ software and R free software environment were used for multivariate data analysis. Principal Component Analysis (PCA) and Orthogonal Projections to Latent Structures-Discriminant Analysis (OPLS-DA) were applied to build some descriptive and predictive models. The analyzed horse urine fingerprints based on the 220 features selected after suppression of confounding factors show changes in metabolic states after chronic stanozolol treatment. This proof of concept study confirms the power of untargeted approach in doping control since the changes are present over seven months after anabolic administration.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"24 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81682410","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

Self-Regulatory Mechanisms of Doping Intentions in Elite Athletes: The Role of Self-Determined Motivation in Sport 优秀运动员兴奋剂意图的自我调节机制:自我决定动机在体育运动中的作用

Journal of Sports Medicine & Doping Studies Pub Date : 2017-01-01 DOI: 10.4172/2161-0673.1000197

K. Corrion, Stéphanie Scoffier-Mériaux, F. Longueville

{"title":"Self-Regulatory Mechanisms of Doping Intentions in Elite Athletes: The Role of Self-Determined Motivation in Sport","authors":"K. Corrion, Stéphanie Scoffier-Mériaux, F. Longueville","doi":"10.4172/2161-0673.1000197","DOIUrl":"https://doi.org/10.4172/2161-0673.1000197","url":null,"abstract":"Objective: Although research on the personal and psychosocial predictors of doping has been extensive, the factors related to the socio-cognitive self-regulatory mechanisms of doping remain unexplored. The aim of this study was to test an integrated multi-theory model examining the role of self-determined motivation in sport in the self-regulatory mechanisms of doping intentions in elite athletes. Methods: A cross-sectional survey was employed. Two hundred and sixty-four elite athletes completed a survey that included measures of self-determination (autonomous vs. controlled), affective self-regulatory efficacy, resistive self-regulatory efficacy, moral disengagement, and doping intentions. Results: Structural equation modeling showed that the model predicted 47.3% of the variance in doping intentions and indicated that both autonomous and controlled motivations were indirectly associated with doping intentions through the mediating role of affective self-regulatory efficacy, resistive self-regulatory efficacy, and moral disengagement. Conclusion: Self-determination theory provides insight into how motivation in sport influences athletes’ doping intentions through its impact on socio-cognitive self-regulatory mechanisms.","PeriodicalId":17085,"journal":{"name":"Journal of Sports Medicine & Doping Studies","volume":"70 6 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77465219","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: 13