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The effects of artificial surface temperature on mechanical properties and player kinematics during landing and acceleration

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Journal of sport and Health Science 2016年第3期5卷 355-360页

作者： Laura Charalambous Hans Christian von Lieres und Wilkau Wolfgang Potthast Gareth Irwin Department of sport Science and physical activity University of Bedfordshire Cardiff School of sport Cardiff Metropolitan University institute of Biomechanics and Orthopaedics German Sport University Cologne

Background: Artificial turf is considered a feasible global alternative to natural turf by many sports governing bodies. Consequently, its ability to provide a safe and consistent playing surface regardless of climate becomes essential. The aims of this study were to determine the effects of artificial surface temperature on:(1) mechanical properties of the turf and(2) the kinematics of a turf-sport related ***: Two identical artificial turf pitches were tested: one with a cold surface temperature(1.8°C–2.4°C) and one with a warm surface temperature(14.5°C–15.2°C). Mechanical testing was performed to measure the surface properties. Four amateur soccer players performed a hurdle jump to sprint acceleration movement, with data(contact time, step length and hip, knee and ankle kinematics) collected using CODAsport(200 Hz).Results: The temperature difference had a significant influence on the mechanical properties of the artificial turf, including force absorption,energy restitution, rotational resistance, and the height where the head injury criterion was met. Both step length(p = 0.008) and contact time(p = 0.002) of the initial step after the landing were significantly longer on the warm surface. In addition, significant range of motion and joint angular velocity differences were ***: These findings highlight different demands placed on players due to the surface temperature and suggest a need for coaches,practitioners, and sports governing bodies to be aware of these differences.

关键词： Artificial turf Biomechanics Rugby Soccer Temperature

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Nutritional supplements use in high-performance athletes is related with lower nutritional inadequacy from food

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Journal of sport and Health Science 2016年第3期5卷 368-374页

作者： Mónica Sousa Maria J.Fernandes Pedro Carvalho José Soares Pedro Moreira Vitor Hugo Teixeira Centre of research Education Innovation and Intervention in Sport Faculty of Sport University of Porto Faculty of Nutrition and Food Sciences University of Porto research Centre on physical activity Health and Leisure Faculty of Sport University of Porto

Background: The use of nutritional supplements(NS) among athletes is widespread. However, little is known about the relationship between nutritional adequacy and NS usage. The aims of this study were to evaluate the NS usage and to compare the nutritional intake from food and prevalence of micronutrient inadequacy(PMI) between NS users and ***: Portuguese athletes from 13 sports completed an NS usage questionnaire and a semi-quantitative food-frequency questionnaire assessing information over the previous 12 months. The estimated average requirement cut-point method was used to calculate PMI. General linear models were used to compare nutritional intake and NS usage. Chi-squared tests and logistic regression were performed to study, respectively,relationships and associations between PMI and NS ***: From the 244 athletes(66% males, 13–37 years), 64% reported NS usage. After adjustment, NS users showed a higher intake from food(p < 0.05), for at least 1 gender, for energy, and for 7 of the 17 studied nutrients. The highest PMI were seen for vitamins D and E, calcium, folate,and magnesium. After adjustment, NS users, irrespective of gender, reported lower PMI for calcium(OR = 0.28, 95%CI: 0.12–0.65), and female users for magnesium(OR = 0.06, 95%CI: 0.00–0.98).Conclusion: Athletes using NS reported a higher nutritional intake from food, and a lower PMI for several nutrients. Perhaps, those who were taking NS were probably the ones who would least benefit from it.

关键词： Carbohydrates Minerals Proteins sport Vitamins

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Effects of Recreational Soccer on Health Outcomes:A Narrative Review

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Journal of Science in sport and Exercise 2019年第2期1卷 142-150页

作者： Israel Castillo-Bellot Jose Mora-Gonzalez Luis Fradua Francisco B.Ortega Luis Gracia-Marco Department of physical Education and sport Faculty of Sport SciencesUniversity of GranadaGranadaSpain PROmoting FITness and Health Through physical activity(PROFITH)research Group Department of Physical Education and SportFaculty of Sport SciencesUniversity of GranadaGranadaSpain

Soccer is a very popular team sport that involves a variety of physical actions,such as sprints,accelerations,sudden decelera-tions,and jumps,among *** has placed recreational soccer in a good position as a strategy to increase physical activity levels and promote health across the *** this regard,recreational(non-competitive)soccer promotes social interaction and has the potential to increase long-term adherence to physical activity,even in those without prior experience in this *** this narrative review,we address the effects of recreational soccer on various health outcomes across the lifespan(i.e.,from childhood to the elderly years)in both *** addition,the beneficial effects of recreational soccer for people with prevalent pathologies,such as hypertension,type II diabetes mellitus,and cancer,are discussed.

关键词： physical fitness physical activity Hypertension Diabetes Cancer Football

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Associations of physical activity, sedentary time, and physical fitness with mental health during pregnancy: The GESTAFIT project

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Journal of sport and Health Science 2021年第3期10卷 379-386页

作者： Maria Rodriguez-Ayllon Pedro Acosta-Manzano Irene Coll-Risco Lidia Romero-Gallardo Milkana Borges-Cosic Fernando Estevez-Lopez Virginia A.Aparicio PROFITH“PROmoting FITness and Health through physical activity”research Group Sport and Health University Research Institute(iMUDS)Department of Physical Education and SportsFaculty of Sport SciencesUniversity of GranadaGranada 18071Spain Department of physical Education and sport Faculty of Sport SciencesUniversity of GranadaGranada 18071Spain sport and Health University research institute(iMUDS) University of GranadaGranada 18007Spain Department of Psychology Faculty of Social and Behavioral SciencesUtrecht UniversityCS Utrecht 3584the Netherlands Department of Physiology Faculty of Pharmacy and Institute of Nutrition and Food TechnologyUniversity of GranadaGranada 18011Spain

Purpose:This study was aimed to analyze the associations of objectively measured physical activity(PA),sedentary time,and physical fitness with mental health in the early second trimester(16§2 gestational weeks)of ***:From 229 women initially contacted,124 pregnant women participated in the present cross-sectional *** were collected between November 2015 and March *** participants wore Actigraph GT3X+Triaxial accelerometers for 9 consecutive days to objectively measure their PA levels and sedentary time.A performance-based test battery was used to measure physical ***-report questionnaires assessed psychological ill-being(i.e.,negative affect,anxiety,and depression),and psychological well-being(i.e.,emotional intelligence,resilience,and positive affect).Linear regression analyses were adjusted for age,educational level,accelerometer wear time,miscarriages,and low back ***:Moderate-to-vigorous PA was negatively associated with depression(b=0.222,adjusted R2=0.050,p=0.041).Higher levels of sedentary time were negatively associated with positive affect(b=0.260,adjusted R2=0.085,p=0.017).Greater upper-body flexibility was positively associated with better emotional regulation(b=0.195,adjusted R2=0.030,p=0.047).The remaining associations were not significant(all p>0.05).Conclusion:An active lifestyle characterized by higher levels of moderate-to-vigorous PA and lower levels of sedentary time during pregnancy might modestly improve the mental health of pregnant *** previous research has focused on the benefits of cardiorespiratory exercise,the present study shows that only upper-body flexibility is related to emotional regulation in early pregnant *** the present findings are corroborated in further experimental research,physical exercise programs should focus on enhancing flexibility to promote improvements in emotional regulation during early second-trimester of pregnancy.

关键词： ActiGraph GT3X Emotional dysregulation Psychological health Sedentary behavior Stretching

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What is the most effective exercise protocol to improve cardiovascular fitness in overweight and obese subjects？

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Journal of sport and Health Science 2017年第4期6卷 454-461页

作者： Eliane Aparecida Castro Ana Belen Peinado Pedro Jose Benito MercedeS Galindo Marcela Gonzalez-Gross Rocio Cupeiro Department of Health and Human Performance Faculty of Physical Activity and Sport Sciences Universidad Polit~cnica de Madrid Madrid 28040 Spain LFE research Group Universidad PolitOcnica de Madrid Madrid 28040 Spain Faculty of physical activity and sport Sciences Universidad Politecnica de Madrid Madrid 28040 Spain ImFINE research Group Universidad PolitOcnica de Madrid Madrid 28040 Spain

Background: Increased peak oxygen consumption(VO2 peak) can reduce cardiovascular risks associated with obesity. Our aim was to analyze the effect of a weight loss program on cardiovascular fitness in overweight(W) and obese(O) ***: One hundred and sixty-seven subjects(77 males and 90 females), aged 18–50 years, performed a modified Bruce protocol before(pre)and after(post) a weight loss program of 24 weeks. This program combined physical training(strength, S; endurance, E; combined strength + endurance, SE; or physical activity recommendation, PA) 3 times per week, with a 25%–30% caloric restriction ***: VO2 peak improved in overweight and obese males(pre and post values in L/min, respectively; W = 3.2 ± 0.6 vs. 3.7 ± 0.5, p physical activity, can improve cardiovascular fitness in overweight subjects and obese males.

关键词： Combined training Endurance training Obesity Oxygen consumption physical activity Strength training Ventilatory threshold

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Does light-intensity physical activity moderate the relationship between sitting time and adiposity markers in adolescents?

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Journal of sport and Health Science 2022年第5期11卷 613-619页

作者： Ana María Contardo Ayala Jo Salmon David W.Dunstan Lauren Arundell Anna Timperio institute for physical activity and Nutrition(IPAN) School of Exercise and Nutrition SciencesDeakin UniversityGeelongVIA 3125Australia physical activity Laboratory Baker Heart and Diabetes InstituteMelbourneVIA 3004Australia Mary MacKillop institute for Health research Australian Catholic UniversityMelbourneVIA 3000Australia

Background:While the relationship between sedentary time and adiposity markers may be independent of moderate-to-vigorous intensity physical activity(MVPA) among adolescents,little is known about the role of light-intensity physical activity(LIPA) in this *** aim of this cross-sectional study was to examine whether device-measured LIPA and MVPA moderate the associations between objectively measured sitting time and adiposity markers(body mass index(BMI)) and waist circumference(WC)) among ***:This study included accelerometer and inclinometer data obtained from 219 adolescents(age=14.9±1.6 years,mean± SD),collected during 2014 and 2015 in Melbourne,*** GT3 X accelerometers were used to determine time spent in total-LIPA(101 counts/min to 3.99 metabolic equivalents(METs)) was dichotomized into low-LIPA(101-799 counts/min) and high LIPA(800 counts/min to 3.99 METs),and MVPA(> 4 METs).The average time spent sitting was obtained from activPAL *** measures were assessed by trained *** between sitting and total-LIPA,low-LIPA,high-LIPA,and MVPA on BMI z-score(zBMI) and WC z-score(zWC),respectively,were examined using linear regression,adjusting for age and sex;and moderation by total-LIPA,low-LIPA,high-LIPA,and MVPA were examined by adding interaction *** interaction effects were probed by comparing associations at the mean and at 1 SD below and above the ***:Total-LIPA significantly moderated the association between sitting time and zBMI,and low-LIPA significantly moderated the association between sitting time and zBMI and *** other associations were found for total-LIPA,high-LIPA,or ***,at high levels of total-LIPA(+1 SD),there is a negative association between sitting time and *** addition,at high levels of low-LIPA(+1 SD),there is a negative association between sitting time and zBMI and ***:Associations between sitting and adiposit

关键词： Adolescents Anthropometric measures Obesity physical activity Sedentary behavior Sitting time

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Journal of sport and Health Science 2021年第4期10卷 447-453页

作者： Kate Parker Anna Timperio Jo Salmon Karen Villanueva Helen Brown Irene Esteban-Cornejo Veronica Cabanas-Sánchez José Castro-Pinero David Sánchez-Oliva OscarL.Veiga School of Exercise and Nutrition Sciences Institute for Physical Activity and Nutrition(IPAN)Deakin UniversityGeelongVIC 3220Australia Centre for Urban research School of Global Urban and Social StudiesRMIT UniversityMelbourneVIC 3000Australia Center for Cognitive and Brain Health Department of PsychologyNortheastern UniversityBostonMA 02115USA PROmoting FITness and Health through physical activity(PROFITH)research group Department of Physical Education and SportsFaculty of Sport SciencesUniversity of GranadaGranada 18010Spain Department of physical Education Sports and Human MovementAutonomous University of MadridMadrid 28049Spain research Centre in physical activity Health and Leisure(CIAFEL)Faculty of SportUniversity of PortoPorto 4099-002Portugal Department of physical Education Faculty of Education SciencesUniversity of CadizPuerto Real 11003Spain Biomedical research and Innovation institute of Cadiz(INiBICA) Cadiz 11003Spain

Background:Children and adolescents can be distinguished by different typologies(clusters) of physical activity and sedentary *** physical activity and sedentary behaviors change over time within different typologies is not *** study examined longitudinal changes in physical activity and sedentary time among children and adolescents with different baseline typologies of activity-related ***:In this longitudinal study(3 annual time points) of children(n=600,age=9.2±0.4 years(mean±SD),50.3% girls) and adolescents(n=1037,age=13.6±1.7 years,48.4% girls),participants were recruited in Spain in *** class analyses identified typologies based on self-reported screen,educational,social and relaxing sedentary behaviors,active travel,muscle strengthening activity,and sport at *** each typology,linear mixed growth models explored longitudinal changes in accelerometer-derived moderate-to-vigorous physical activity and sedentary time,as well as time by class ***:Three typologies were identified among children( "social screenies",12.8%;"exercisers",61.5%;and "non-sporty active commuters",25.7%) and among adolescents "active screenies",43.5%;"active academics",35.0%;and "non-sporty active commuters",21.5%) at *** time increased within each typology among children and adolescents,with no significant differences between *** changes in physical activity were found in any typology among *** adolescents,physical activity declined within all typologies,with "non-sporty active commuters" declining significantly more than "active screenies" over 3 ***:These results support the need for interveation to promote physical activity and prevent increases in sedentary time during childhood and *** characterized as "non-sporty active commuters" may require specific interventions to maintain their physical activity over time.

关键词： Behavior change physical activity Sedentary behavior Typologies Youth

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Heart rate variability to assess ventilatory thresholds in professional basketball players

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Journal of sport and Health Science 2017年第4期6卷 468-473页

作者： Domingo Jesús Ramos-Campo Jacobo A. Rubio-Arias Vicente Avila-Gandia Cristian Marin-Pagan Antonio Luque Pedro E. Alcaraz Department of physical activity and sport Science Faculty of Sports Catholic University ofMurcia Murcia 30107 Spain Department of Physiology Catholic University ofMurcia Murcia 30}07 Spain UCAM research Center for High Performance sport Mureia 30107 Spain

Purpose: The aim of this study was to determine if heart rate variability(HRV) during incremental test could be used to estimate ventilatory threshold(VT) in professional basketball players, with sufficient precision to be used in their training. Furthermore, the second aim was to analyse the association between HRV and 3 methods of VT determination by gas ***: Twenty-four professional basketball players(age: 23.4 ± 4.9 years; height: 195.4 ± 9.8 cm; body mass: 92.2 ± 11.9 kg) performed an incremental running test to exhaustion. First ventilatory threshold(VT1) was determined by ventilatory equivalent(VE) and HRV and second ventilatory threshold(VT2) was determined by 3 methods of gases analysis(V-slope, VE and gas exchange ratio(R), and HRV). Pearson's coefficient(r) was used to detect differences between data and the strength of each relationship. The mean of absolute differences and Bland–Altman analysis were used to evaluate whether there was ***: The results showed no significant differences in HR and oxygen consumption(VO2) at VT1 between the 2 methods. Furthermore, no significant differences among the methods of gases analysis and HRV were observed in speed, HR, and VO2 at VT2. Moreover, VTs estimated using HRV and gas methods were significantly correlated. Correlation in HR values was higher between R and HRV(r = 0.96) and VE and HRV(r = 0.96) than V-slope and HRV(r = 0.90).Conclusion: These findings provide a practical, inexpensive approach for evaluating specific training loads when determining VT2 in basketball players. Therefore, HRV is an alternative method to determine VT2 without the application of expensive technology that limits its use to laboratories.

关键词： Anaerobic threshold Basketball Oxygen uptake Performance Training Ventilatory threshold

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Effects of hyperbaric oxygen therapy on human psychomotor performance:A review

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Journal of Integrative Medicine 2023年第5期21卷 430-440页

作者： Dorota Olex-Zarychta institute of sport Sciences Academy of Physical Education in Katowice40-065 KatowicePoland

Psychomotor performance is the coordination of a sensory or ideational(cognitive)process and a motor *** sensorimotor processes involved in planning and execution of voluntary movements need oxygen supply and seem to be significantly disrupted in states of *** oxygen therapy has become a widely used treatment in routine medicine and sport medicine due to its beneficial effects on different aspects of human physiology and *** paper presents state-of-the-art data on the effects of hyperbaric oxygen therapy on different aspects of human psychomotor *** therapy’s influence on musculoskeletal properties and motor abilities as well as the effects of hyperbaric oxygenation on cognitive,myocardial and pulmonary functions are *** this review the molecular and physiological processes related to human psychomotor performance in response to hyperbaric oxygen are discussed to contribute to this fast-growing field of research in integrative medicine.

关键词： Hyperbaric oxygen therapy Hypoxia Psychomotor performance Oxidative metabolism

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Factors that affect heart rate variability following acute resistance exercise:A systematic review and meta-analysis

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Journal of sport and Health Science 2022年第3期11卷 376-392页

作者： Sajith U.Marasingha-Arachchige JacoboÁ.Rubio-Arias Pedro E.Alcaraz Linda H.Chung UCAM research Center for High Performance sport Catholic University of MurciaMurcia 30107Spain LFE research Group Department of Health and Human PerformanceFaculty of Physical Activity and Sport Science-INEFUniversidad Politécnica de MadridMadrid 28040Spain Faculty of sport Catholic University of MurciaMurcia 30107Spain

Background:There is controversial evidence regarding the effect of acute resistance exercise(ARE) on heart rate variability(HRV) parameters,which indicates the activities of the cardiac autonomic nervous *** aim of this study was to perform a systematic review and meta-analysis of the literature on the effect of ARE on HRV parameters and identify its possible moderating ***:The PubMed-Medline,Web of Science,sportDiscus,and Cochrane Library databases were *** Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA) declaration was followed,and the methodological quality of the studies was *** level of significance was set at p≤***-six studies met the inclusion *** effect analyses between pre-and post-test interventions demonstrated an increase in normalized units low frequency(p <0.001;standardized mean difference(SMD)=0.78;95% confidence interval(95%CI):0.46-1.11) and low frequency/high frequency ratio(p <0.001;SMD=0.82;95%CI:0.64-0.99) and a decrease in standard deviation of the normal-to-normal(NN)interval(p <0.001;SMD=-0.58;95%CI:-0.85 to-0.30),root mean square of the successive differences(p <0.001;SMD=-1.01;95%CI:-1.29 to-0.74),and normalized units high frequency(p <0.001;SMD:-1.08;95%CI:-1.43 to-0.73) following ARE in healthy individuals range:15 ± 1 to 48 ± 2 years;mean ± SD).Results:There were differences between the subgroups in the number of sets used in an exercise(p=0.05) for root mean square of the successive differences,as well as for exercise intensity(p=0.01) and rest between sets(p=0.05) for normalized units high ***,there were differences between the subgroups in training volume for root mean square of the successive differences(p=0.01),normalized units high frequency(p=0.003) and normalized units low frequency(p=0.02).Conclusion:Overall,there was a withdrawal of cardiac parasympathetic and activation of cardiac sympathetic modulations following ARE,and th

关键词： Cardiac Parasympathetic Sympathetic

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