Motriz-revista De Educacao Fisica最新文献_第5页

Effects of a deep-water running program on muscle function and functionality in elderly women community dwelling 深水跑步对社区老年妇女肌肉功能的影响

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700040002

D. Alberti, Leilane Lazarotto, P. Bento

引用次数: 2

Visual search strategy of soccer players according to different age groups 不同年龄段足球运动员的视觉搜索策略

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030022

Guilherme Machado, Felippe Cardoso, Israel Teoldo

{"title":"Visual search strategy of soccer players according to different age groups","authors":"Guilherme Machado, Felippe Cardoso, Israel Teoldo","doi":"10.1590/S1980-6574201700030022","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030022","url":null,"abstract":"Visual search has been considered one of the most important aspects within the process of decision-making in soccer (Williams and Davids, 1998). Literature shows that there are differences on visual search between different competitive levels but in relation to different age groups further investigation is still necessary. The sample comprised 51 youth soccer players. The instrument used to collect and analyse data was the Mobile Eye Tracking – XG (Applied Science Laboratories, Bedford, MA, EUA). This system is used to verify gaze behaviour through visual focus. Players were grouped according to their age group : U-13 (17), U-15 (17), U-17 (17). Video stimuli were the same as that employed by Mangas (1999). Visual search stimuli were grouped in five categories: “player in possession of the ball”; “ball”; “teammates”; “opponent”; “space”. The number of fixations made by players, in each stimuli category was analysed. Data distribution was verified through Shapiro-Wilk's test. One-way ANOVA was performed to compare mean values between the three groups. Results displayed significant differences in one of the categories. The “space” category displayed significant differences between U-13 (74.35±12.41), U-15 (58.78±14.22) and U-17 (61.88±16.44). No other significant differences were found in other categories. These findings are related to the specific sports development phase of each age group. The U-13 was the category that employed most of the visual search related with “space” unlike the U-15 and U-17 age groups. These differences might be related to the specific knowledge of soccer, which is usually lower in younger players. These findings are important for coaches and researchers to understand how visual search strategy change according to the age group.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125220941","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: 12

Motor control assessment of community-dwelling older adults with depressive symptoms 社区居住老年人抑郁症状的运动控制评估

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700040005

L. E. Bicalho, M. Albuquerque, J. D. Paula, G. Lage

引用次数: 0

Carbohydrate mouth rinse reduces rating of perceived exertion but does not affect performance and energy systems contribution during a high-intensity exercise 含碳水化合物的漱口水降低了感知运动的等级，但在高强度运动中不影响表现和能量系统的贡献

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030013

V. J. BASTOS-SILVA, G. G. Araujo, Sérgio Victor dos Santos Franco, Alan de Albuquerque Melo, Sara Learsi, A. Lima-Silva, R. Bertuzzi

{"title":"Carbohydrate mouth rinse reduces rating of perceived exertion but does not affect performance and energy systems contribution during a high-intensity exercise","authors":"V. J. BASTOS-SILVA, G. G. Araujo, Sérgio Victor dos Santos Franco, Alan de Albuquerque Melo, Sara Learsi, A. Lima-Silva, R. Bertuzzi","doi":"10.1590/S1980-6574201700030013","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030013","url":null,"abstract":"Aim: The study aimed to verify the effect of carbohydrate (CHO) mouth rinse on time to exhaustion, energy systems contribution and rating of perceived exertion (RPE) during a high-intensity exercise. Methods: Fourteen men performed an incremental exercise test to determine their maximal oxygen uptake and peak power output (PPO) and two time-to-exhaustion tests at 110% of PPO. Participants rinsed their mouth with 25ml of 6.4% of CHO or placebo (PLA) solution immediately before the time-to-exhaustion test, using a crossover design. The contribution of the energy systems was calculated using the free software GEDAE-LaB®. Results: Time to exhaustion was similar between the conditions (CHO:174.3±42.8s; PLA:166.7±26.3s; p=0.33). In addition, there was no difference between the CHO and PLA condition for aerobic (CHO:135.1±41.2kJ and PLA:129.8±35.3kJ, p=0.34), anaerobic lactic (CHO:57.6±17.1kJ and PLA:53.4±15.1kJ, p=0.10), and anaerobic alactic (CHO:10.4±8.4kJ and PLA:13.2±9.2kJ, p=0.37) contribution. Consequently, total energy expenditure was similar between conditions (CHO:203.2±46.4kJ and PLA:196.5±45.2kJ, p=0.15). However, CHO mouth rinse reduced the RPE at the moment of exhaustion (CHO:18.2±1.0units and PLA:19.1±1.1units; p=0.02). Conclusion: CHO mouth rinse neither increased time to exhaustion nor altered energy systems contribution during a high-intensity exercise, but reduced the perceived effort at the exhaustion.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129756066","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

Football coaches’ development in Brazil: a focus on the content of learning 巴西足球教练员的发展:关注学习内容

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030017

A. B. Tozetto, L. Galatti, A. Scaglia, Tiago Duarte, M. Milistetd

{"title":"Football coaches’ development in Brazil: a focus on the content of learning","authors":"A. B. Tozetto, L. Galatti, A. Scaglia, Tiago Duarte, M. Milistetd","doi":"10.1590/S1980-6574201700030017","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030017","url":null,"abstract":"— Aim: The aim of the study was to analyze the lifelong content of learning of coaches. Methods: Eight coaches inserted in an Elite Football Club participated. Rappaport Time Line and semi-structured interviews were used to obtain the data. The coaches’ learning was organized according to the theory of Lifelong Learning. 1-4 Results: The coaches presented in their personal experiences, with their families and as athletes, content of learning such as “leadership development” and “formation of values”. In professional experiences, such as in academic training, coach assistants and even coaching, they are also reported as essential in obtaining content of learning (general and specific knowledge, training methods, leadership development, self-control). Finally, the reflexive process is considered by most coaches as a potentiator of learning, with interference on the “coach-athlete relationship”, “activity adjustment,” among other content of learning. Conclusion: The content learned throughout the life were defined in certain episodes for presenting different meanings in the life of the coaches, in which they related to a new experience according to their biographies. Therefore, the various episodes offer coaches new experiences, in which they can incorporate, reinforce or renew the content about the coaching process and are responsible for the development of the coach. there I came to understand that these games are interconnected, zonal marking in handball, the transitions that basketball requires, the fast decision making in futsal and I searched to associate a lot of what we learn with football.”","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130908053","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: 18

Constant-blocked practice: variation of parameters improves motor skill acquisition 持续阻塞练习:参数的变化改善了运动技能的习得

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030026

C. Matos, M. Vieira, Bruno Roberto Santos, G. Lage, Herbert Ugrinowitsch

引用次数: 2

Moderate physical training counterbalances harmful effects of low-protein diet on heart: metabolic, oxidative and morphological parameters 适度的体育锻炼可以抵消低蛋白饮食对心脏代谢、氧化和形态参数的有害影响

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030019

Déborah S. Carthagenes, M. P. Barreto, C. Freitas, A. Pedroza, M. P. Fernandes, D. Ferreira, C. Lagranha, Luciana Nascimento, L. B. Evêncio

{"title":"Moderate physical training counterbalances harmful effects of low-protein diet on heart: metabolic, oxidative and morphological parameters","authors":"Déborah S. Carthagenes, M. P. Barreto, C. Freitas, A. Pedroza, M. P. Fernandes, D. Ferreira, C. Lagranha, Luciana Nascimento, L. B. Evêncio","doi":"10.1590/S1980-6574201700030019","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030019","url":null,"abstract":"Aims: Maternal low-protein diet induces several impairments on cardiac system. Conversely, moderate exercise has been widely recommended to health improvement due to its effects on heart function. Thus, we investigated whether the moderate physical training is capable to offset the lasting injuries of a maternal protein restriction on the hearts of male adult rats. Methods: Pregnant rats were divided into two groups: Control (C=17% casein) and undernutrition (U=8% casein). Offspring from the undernutrition group, at 60 days of life, were subdivided into undernutrition (U) and undernutrition+exercise (UT) groups. Treadmill exercise was performed: (8 weeks, 5 days/week, 60 min/day at 70% of VO2máx). 48 hours after last exercise session, tissues were collected for morphological and biochemical analysis. Results: Despite the deleterious effect induced by low-protein diet, physical training was able to restore morphological parameters to similar levels to the control group. Additionally, oxidative stress index was also improved in UT group, due to the increase in antioxidant enzymatic defense. In metabolic enzymes, maternal low-protein diet induced a change in metabolism, and moderate physical training improved oxidative metabolism. Conclusion: We demonstrated that moderate physical training can offset the cardiac metabolism in adult rats that were exposed to a maternal low-protein diet.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122508428","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

Acute effects of maximal isometric muscle action of the elbow extensors on contralateral dynamic task of the elbow flexors: a pilot study 肘关节伸肌的最大等长肌动作对肘关节屈肌对侧动态任务的急性影响:一项初步研究

Motriz-revista De Educacao Fisica Pub Date : 2017-12-21 DOI: 10.1590/S1980-6574201700030018

C. V. Teixeira, Diego R Cortes, A. Evangelista, Luís Felipe Tubagi Polito, D. Bocalini, P. Costa, R. Simão, P. H. Marchetti

{"title":"Acute effects of maximal isometric muscle action of the elbow extensors on contralateral dynamic task of the elbow flexors: a pilot study","authors":"C. V. Teixeira, Diego R Cortes, A. Evangelista, Luís Felipe Tubagi Polito, D. Bocalini, P. Costa, R. Simão, P. H. Marchetti","doi":"10.1590/S1980-6574201700030018","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030018","url":null,"abstract":"Aim: the aim was to investigate the influence of a maximal isometric muscle action of the elbow extensors on the contralateral dynamic task of the elbow flexors. Methods: Seventeen recreationally trained men (23.3 ± 4.9 yrs, BMI: 24.8 ± 2.2 Kg/m2) underwent two randomized different testing sessions separated by one week. In the control session (CON) all subjects performed a maximum number of repetitions test (RMs) at 75%1RM using the right elbow flexors. The experimental session (EXP) was similar to the CON; however, all subjects were instructed to perform RMs at 75%1RM by using the right elbow flexors and maintaining the maximal voluntary contraction of the left elbow extensors during the test. RMs, rating of perceived exertion (RPE), and training volume (TV) were measured and compared between sessions. Results: The EXP showed a significant 10.4% increase on the RMs (13.8 vs. 12.5, p < 0.001, d = 0.44) and 12.1% increase in TV (238.0 vs. 212.4 kg, p < 0.001, d = 0.43) than CON. No differences were observed for RPE between sessions. Conclusion: The maximum voluntary contraction of the left elbow extensors increased the RMs of the contralateral elbow flexors, reflecting a higher TV, and no differences in the RPE. Our results suggest that the investigated method may be a viable and practical alternative to increase the acute strength performance of elbow flexors when using submaximal loads.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132345132","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

Exercise training reverse autonomic dysfunction and hypertension in rats fed with high-fat diet 运动训练逆转高脂饮食大鼠的自主神经功能障碍和高血压

Motriz-revista De Educacao Fisica Pub Date : 2017-12-18 DOI: 10.1590/S1980-6574201700040004

Carla Cristina de Sordi, M. Lemos, M. Marocolo, R. Chriguer, E. L. Mendes, G. Mota, O. Neto

引用次数: 2

Functional independence and mobility in kidney transplanted patients: cross-sectional study 肾移植患者的功能独立性和活动能力:横断面研究

Motriz-revista De Educacao Fisica Pub Date : 2017-12-11 DOI: 10.1590/S1980-6574201700030025

T. Maia, Lívia G. Rocha, S. D. Bezerra, P. Marinho

{"title":"Functional independence and mobility in kidney transplanted patients: cross-sectional study","authors":"T. Maia, Lívia G. Rocha, S. D. Bezerra, P. Marinho","doi":"10.1590/S1980-6574201700030025","DOIUrl":"https://doi.org/10.1590/S1980-6574201700030025","url":null,"abstract":"- Aim — To assess functional independence, balance and mobility of kidney transplant recipients, to verify transplant time, donor type, regular exercise practice, musculoskeletal complaints, as well as association among these variables. Methods: Observational study with 86 kidney transplant individuals, subjected to evaluation of the Functional Independence Measure (FIM) and Timed Up and Go test (TUG). Results: The mean age of the study population was 43.98 years old, 50% of these individuals were between 5-10 years of transplantation and 50% between 10-15 years. Changes in mobility and balance (TUG) were found in 9.3% of transplant patients, while 2.3% had deficits in functional independence (FIM). The association between TUG and the FIM (χ2= 19.964, p< 0.001) was found in 25% of the 9.3% of individuals who showed changes in TUG. It was found that only 20.9% of kidney transplant between 5-10 years and 14.0% between 11 and 15 years performed regular physical exercises (χ2= 0.727, p= 0.394) and 67.4% presented prevalent complaints on lower limbs musculoskeletal. Conclusion: Although the level of dependence and impairments in mobility and balance found in renal transplants are low, deficits in mobility and balance may lead to changes in the ability to perform their functional activities independently.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121117839","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