Scientific Journal of Sport and Performance最新文献_第7页

Motivational climate and attitudes towards doping among Kenyan endurance runners 肯尼亚耐力跑者对兴奋剂的激励气氛和态度

Scientific Journal of Sport and Performance Pub Date : 2022-09-22 DOI: 10.55860/prno5834

Kevin K. Kipchumba, E. Rintaugu, F. Mwangi

{"title":"Motivational climate and attitudes towards doping among Kenyan endurance runners","authors":"Kevin K. Kipchumba, E. Rintaugu, F. Mwangi","doi":"10.55860/prno5834","DOIUrl":"https://doi.org/10.55860/prno5834","url":null,"abstract":"Doping is a worldwide problem that harms athletes' health and undermines the spirit of sport. Studies have shown that male athletes are more prone to doping than female athletes. Athletes with mastery climate have been associated with anti-doping attitudes, while those with performance climate have pro-doping attitudes. However, it is unclear whether motivational climate is equally important to attitude towards doping for males and females. Data were collected from 323 runners in Elgeyo-Marakwet County, Kenya, using cross-sectional survey design. Runners self-reported their motivational climate using Perceived Motivational Climate in Sport Questionnaire and attitudes towards doping using Performance Enhancement Attitude Scale. Correlational analysis indicated significant inverse relationship between mastery climate and doping attitude (rho = -.242; p < .001) and significant positive correlation between performance climate and doping attitude, (rho = .362; p < .001). Hierarchical regression analysis revealed performance and mastery climate were significant predictors of attitudes towards doping (F (3, 319) = 28.24, p = .001), and gender did not moderate the relations between motivational climate and doping attitudes (β = -.028, p = .621). MANOVA results showed male athletes were significantly lower in performance climate scores (p = .045) and non-significantly low in mastery climate scores (p =.075) and doping attitude scores (p = .595) than females. In conclusion, performance climate was associated with doping attitudes in females- but not in males. Therefore, policy frameworks that buttresses the aspects of mastery climate as opposed to performance climate in females is likely to promote anti-doping attitudes.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131872120","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

Non-invasive approach for the assessment of oxidative stress after intense judo activities 无创方法评估高强度柔道活动后氧化应激

Scientific Journal of Sport and Performance Pub Date : 2022-09-22 DOI: 10.55860/wmaw9421

P. Sist, R. Urbani

引用次数: 0

Home-fitness and active ageing 在家健身和积极乐颐年

Scientific Journal of Sport and Performance Pub Date : 2022-09-22 DOI: 10.55860/iius3216

A. Capriotti, Valeria Patregnani, A. Federici

引用次数: 1

Inter-distance differences in aiming error and visual perception influence shooting performance in basketball 在篮球运动中，瞄准误差和视觉感知的距离差异影响投篮表现

Scientific Journal of Sport and Performance Pub Date : 2022-09-22 DOI: 10.55860/josj2411

N. Slegers

{"title":"Inter-distance differences in aiming error and visual perception influence shooting performance in basketball","authors":"N. Slegers","doi":"10.55860/josj2411","DOIUrl":"https://doi.org/10.55860/josj2411","url":null,"abstract":"This study is the first to use inter-distance differences in shooting direction error to investigate the influence of visual perception on basketball shooting performance. Thirty-two experienced basketball athletes (NCAA Division I-III: n = 15, Canadian U Sports Association: n = 13, National Basketball Association: n = 4) attempted blocks of 25 jump shots from a near (free throw) and far distance (three-point attempt). Differences in the root-mean-square deviation of lateral direction error as distance increased, ΔLDE, were used to measure an individual’s change in lateral accuracy as the target changed within their visual field. The mean ΔLDE was -0.18 degrees (p < .001, 95% CI: -0.25 – -0.11) indicating that an individual’s lateral direction accuracy worsened as shooting distance decreased and external visual cues transitioned away from their central vision. Shooting performance had a strong positive correlation with ΔLDE (r = 0.57, p = .001) indicating that better shooters have a higher ability to adapt to the changes in visual perception with distance and experienced smaller reductions in lateral accuracy as shooting distance decreased. These findings show that visual perception has a significant role in basketball shooting performance and that ΔLDE is a valuable measure for assessing how an athlete’s proficiency in visual perception contributes to their performance.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131992958","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

Comparison of a new bioelectrical impedance device and its use in the assessment of body composition 一种新的生物电阻抗装置的比较及其在身体成分评估中的应用

Scientific Journal of Sport and Performance Pub Date : 2022-08-08 DOI: 10.55860/esxr2311

Carlos Elvira, David Tomás-Casamian, M. J. Gomis-Gomis, Luis Wyche, Mario Terol-Sanchis, Pablo Pérez-Suárez

引用次数: 0

Relationship between dry-land upper-limb power and underwater stroke power using medicine ball overhead slam as a predictor of swimming speed by upper limbs only 旱地上肢力量与水下划水力量的关系，用实心球顶击作为上肢游泳速度的预测因子

Scientific Journal of Sport and Performance Pub Date : 2022-08-02 DOI: 10.55860/abxa5544

Yusuke Ikeda, R. Nara, Y. Baba, Shoichiro Yamashiro, Tetsuya Hisamitsu, Y. Shimoyama

{"title":"Relationship between dry-land upper-limb power and underwater stroke power using medicine ball overhead slam as a predictor of swimming speed by upper limbs only","authors":"Yusuke Ikeda, R. Nara, Y. Baba, Shoichiro Yamashiro, Tetsuya Hisamitsu, Y. Shimoyama","doi":"10.55860/abxa5544","DOIUrl":"https://doi.org/10.55860/abxa5544","url":null,"abstract":"The relationship between power output underwater and on land was investigated by evaluation of underwater power output by the back and upper limbs. Thirteen male competitive swimmers performed the one underwater arm stroke (OUAS) trial, medicine ball overhead slam (MBOS) trial, and lat pull-down test as a predictor of back and upper-limb strength and power underwater and on land. The maximum horizontal velocity of the greater trochanter in OUAS correlated with all vertical velocities of the MB at release in MBOS (r = 0.544 – 0.777), with 5 repetition maximums in the lat pull-down test (r = 0.555 – 0.729), and with FINA points (r = 0.783). In the OUAS trial, increases in horizontal velocity from the start of the OUAS to the maximum horizontal velocity correlated with horizontal velocity at the start of trial, and high-level swimmers accelerated their body in a manner that was dependent on horizontal velocity at the start of the OUAS. These results suggest that underwater power output using only the upper limbs is closely associated with power and strength in dry-land exercise, and that back and upper-limb power and strength are crucial physical elements for competitive swimmers.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123891614","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

Effects of a controlled exercise programme on anthropometric parameters, dietary habit and sleep quality of obese university students 控制运动计划对肥胖大学生人体测量参数、饮食习惯和睡眠质量的影响

Scientific Journal of Sport and Performance Pub Date : 2022-07-29 DOI: 10.55860/ooth5548

C. Adams, P. Oppong, Johnson Kwakye Worlanyo, Sarah Prudence Agblo, Stephan Owusu, Monday Omoniyi Moses

{"title":"Effects of a controlled exercise programme on anthropometric parameters, dietary habit and sleep quality of obese university students","authors":"C. Adams, P. Oppong, Johnson Kwakye Worlanyo, Sarah Prudence Agblo, Stephan Owusu, Monday Omoniyi Moses","doi":"10.55860/ooth5548","DOIUrl":"https://doi.org/10.55860/ooth5548","url":null,"abstract":"According to WHO, obesity has reached epidemic proportions globally. In spite of growing public awareness of the importance of weight loss, obesity prevalence continues to rise with at least 2.8 million people dying each year as a result of being overweight or obese. The main objective of this study was to investigate the effects of jogging exercise programme (JEP) on anthropometric parameters, dietary habit and sleep quality of obese Ghanaian university students. This randomised controlled study employed 33 obese (BMI > 30 kg/m2) students from a tertiary university in Ghana. The experimental group participated in a six-week, 3-5 times/week JEP for 45 and 40 minutes per session while the control group had intervention free session. Anthropometric parameters were assessed using the Omron body composition analyser and a standard tape measure. Sleep quality and Dietary habit were determined using a pre-validated Sleep Quality Scale and Performance of a Brief Dietary Assessment and Intervention tool for Health Professionals questionnaire respectively. The participants had a mean age of 21.70 ± 3.74 years. There were 14 (42.4%) males and 19 (57.6%) females of which 26 (80.8%) were indigenous and 7 (19.2%) were international students. There was significant decrease in body mass index, waist to hip ratio, and visceral fat; and increase in sleep quality (p < .05) at the end of the intervention period. However, the dietary habit of the experimental group did not change significantly (p > .05). In conclusion, JEP has positive impacts on anthropometric parameters and sleep quality of obese persons.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132291111","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

Validity and reliability of a unique aerobic field test for estimating VO2max among basketball players 一种估算篮球运动员最大摄氧量的独特有氧野外测试的效度和信度

Scientific Journal of Sport and Performance Pub Date : 2022-06-01 DOI: 10.55860/trmf2461

Roni Gottlieb, Asaf Shalom, P. Alcaraz, J. Calleja-González

{"title":"Validity and reliability of a unique aerobic field test for estimating VO2max among basketball players","authors":"Roni Gottlieb, Asaf Shalom, P. Alcaraz, J. Calleja-González","doi":"10.55860/trmf2461","DOIUrl":"https://doi.org/10.55860/trmf2461","url":null,"abstract":"This study aimed at developing and validating an innovative field test for measuring the aerobic capacity of basketball players during games. Such capacity is necessary for recovering from high frequency anaerobic actions such as sprinting and continuing to perform well. To recover, the body must rebuild its creatine phosphate reserve and emit accumulated phosphate in very short periods of time. The participants included 21 male basketball players on an elite youth league in Israel, aged 16.4 years on average. In addition to participating in the proposed test (Yo-Yo Recovery Test for Basketball Players) twice (test/re-test), the players also performed three previously validated tests (Bruce Protocol Stress Test, Yo-Yo Intermittent Recovery Level 1 Test, and Yo-Yo Endurance Test). For each test, the players’ time and distance covered were documented, as were their maximum oxygen consumption and heartrate during recovery, and their perceived level of exertion. Our findings indicate the validity and reliability of the proposed aerobic field test for basketball players. Moreover, the test requires shorter times and distances for obtaining results than the other three tests. As such, this tool could be highly beneficial for basketball coaches in creating optimal training programs and game plans for each individual player and for the entire team.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133724279","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: 3

The effect of sensor position shifts on tensiomyographic parameters 传感器位置移位对张力肌图参数的影响

Scientific Journal of Sport and Performance Pub Date : 2022-06-01 DOI: 10.55860/rpzl3362

Stefanie John, Nico Leon Stallmach, K. Witte

{"title":"The effect of sensor position shifts on tensiomyographic parameters","authors":"Stefanie John, Nico Leon Stallmach, K. Witte","doi":"10.55860/rpzl3362","DOIUrl":"https://doi.org/10.55860/rpzl3362","url":null,"abstract":"Tensiomyography (TMG) is a non-invasive method to determine contractile parameters of skeletal muscles. Several methodological factors, however, might affect TMG results. The aim of this study was to investigate the effect of specific sensor position shifts on tensiomyographic parameters. 14 healthy males (age: 22.6 ± 1.2 years) participated in the study. TMG measurements were performed for rectus femoris (RF), gastrocnemius medialis (GM) and gastrocnemius lateralis (GL) on five sensor positions. The original sensor position (OP) was the recommended position on the muscle belly while for the shifted positions, the sensor was displaced one centimetre medially, laterally, proximally, and distally. TMG parameters measured were maximum radial displacement (Dm) and contraction time (Tc). To investigate the effect of sensor position shift, repeated-measures ANOVAs were performed. The ANOVAs revealed significant differences across the five sensor positions for RF and GM. Posthoc analysis showed significant reductions in Dm by 10 % (p = .03) and in Tc by 12 % (p = .008) in the laterally shifted sensor position for RF. For GM, Dm was significantly reduced by 20 % (p = .038) in the medially displaced sensor position. The results suggest that incorrect sensor positioning has an impact on TMG parameters, especially when incorrectly positioned in the medial-lateral direction.","PeriodicalId":224249,"journal":{"name":"Scientific Journal of Sport and Performance","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134317339","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

Evolution of throwing techniques in men’s shot put 男子铅球投掷技术的演变

Scientific Journal of Sport and Performance Pub Date : 2022-06-01 DOI: 10.55860/ozzy9305

Satashi Hatase, Yuta Takanashi

引用次数: 1