Ubiquitous computing in sports: A review and analysis.

abstract：:The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the dem...

journal_title：Journal of sports sciences

authors： Thomson E,Lamb K,Nicholas C

更新日期：2013-01-01 00:00:00

abstract：:The length of telomeres is an objective measure of biologic ageing. This study evaluated the extent minutes of walking per week are associated with leukocyte telomere length (LTL) in a random sample of 5,823 U.S. adults. The investigation was cross-sectional and data were obtained from the National Health and Nutritio...

journal_title：Journal of sports sciences

authors： Tucker LA

更新日期：2020-05-01 00:00:00

abstract：:Application of machine learning techniques has the potential to yield unseen insights into movement and permits visualisation of complex behaviours and tangible profiles. The aim of this study was to identify profiles of relative motor competence (MC) and movement behaviours in pre-school children using novel analytic...

journal_title：Journal of sports sciences

authors： Clark CCT,Duncan MJ,Eyre ELJ,Stratton G,García-Massó X,Estevan I

更新日期：2020-01-01 00:00:00

abstract：:Deci and Ryan's causality orientations theory suggests that there are individual differences in motivational orientation towards initiating and regulating behaviour. They described three causality orientations: autonomy, control and impersonal. The aim of this paper is to describe the development and concurrent validi...

journal_title：Journal of sports sciences

authors： Rose EA,Markland D,Parfitt G

更新日期：2001-06-01 00:00:00

abstract：:This study examined the changes in running performance, maximal blood lactate concentrations and running kinematics between 85%BM anti-gravity (AG) running and normal over-ground (OG) running over an 8-week training period. Fifteen elite male developmental cricketers were assigned to either the AG or over-ground (CON)...

journal_title：Journal of sports sciences

authors： Brennan CT,Jenkins DG,Osborne MA,Oyewale M,Kelly VG

更新日期：2018-10-01 00:00:00

abstract：:This study examined the relationship between sit-to-stand (STS) power and physical function in adults with severe obesity. Thirty-eight adults (age: 44 ± 12 years; body mass index [BMI]: 45.2 ± 7.8 kg/m2) completed evaluations of STS power, strength and functional performance. STS power was measured with a wearable in...

journal_title：Journal of sports sciences

authors： Orange ST,Marshall P,Madden LA,Vince RV

更新日期：2019-06-01 00:00:00

abstract：:Agility is an essential part of many athletic activities. Currently, agility drill duration is the sole criterion used for evaluation of agility performance. The relationship between drill duration and factors such as acceleration, deceleration and change of direction, however, has not been fully explored. This paper ...

journal_title：Journal of sports sciences

authors： Arshi AR,Nabavi H,Mehdizadeh S,Davids K

更新日期：2015-01-01 00:00:00

abstract：:We aimed to compare multilayer perceptron (MLP) neural networks, radial basis function neural networks (RBF) and linear models (LM) accuracy to predict the centre of mass (CM) horizontal speed at low-moderate, heavy and severe swimming intensities using physiological and biomechanical dataset. Ten trained male swimmer...

journal_title：Journal of sports sciences

authors： de Jesus K,de Jesus K,Ayala HVH,Dos Santos Coelho L,Vilas-Boas JP,Fernandes RJP

更新日期：2019-07-01 00:00:00

abstract：:This study aimed to compare the recovery kinetics of physical performance and subjective ratings in response to a soccer-specific exercise simulation on natural grass and artificial turf. Physical performance tests and subjective ratings were assessed on 13 professional soccer players before, immediately after, 24 h a...

journal_title：Journal of sports sciences

authors： Nédélec M,McCall A,Carling C,Le Gall F,Berthoin S,Dupont G

更新日期：2013-01-01 00:00:00

abstract：:Ankle sprains are one of the most severe musculoskeletal soft tissue injuries during physical activity. Although many risk factors have been offered, it is unclear why some individuals develop noncontact ankle sprains when participating in comparable levels of physical exertion under identical environmental conditions...

journal_title：Journal of sports sciences

authors： Shang X,Li Z,Cao X,Xie C,Gu M,Chen P,Yang X,Cai J

更新日期：2015-01-01 00:00:00

abstract：:There is a positive association between motor competence and physical activity in child populations. Little is known about the relative variance explained in physical activity when process- versus product-oriented approaches are used for evaluating motor competence. This study aimed to examine associations between pro...

journal_title：Journal of sports sciences

authors： Hulteen RM,True L,Pfeiffer KA

更新日期：2020-02-01 00:00:00

abstract：:The purpose was to assess the mechanical work and physiological responses to cross country mountain bike racing. Participants (n = 7) cycled on a cross country track at race speed whilst VO2, power, cadence, speed, and geographical position were recorded. Mean power during the designated start section (68.5 ± 5.5 s) w...

journal_title：Journal of sports sciences

authors： Macdermid PW,Stannard S

更新日期：2012-01-01 00:00:00

abstract：:The aim of this study was to compare selected physiological variables and performance markers of soldiers from two "elite" units of the British Army. Ten soldiers from each of the two units were recruited for this study (n = 20). All participants completed three tests while carrying a 20 kg backpack load: (1) a maxima...

journal_title：Journal of sports sciences

authors： Simpson RJ,Gray SC,Florida-James GD

更新日期：2006-06-01 00:00:00

abstract：:Despite recent popularity of wrist-worn accelerometers for assessing free-living physical behaviours, there is a lack of user-friendly methods to characterize physical activity from a wrist-worn ActiGraph accelerometer. Participants in this study completed a laboratory protocol and/or 3-8 hours of directly observed fr...

journal_title：Journal of sports sciences

authors： Montoye AHK,Clevenger KA,Pfeiffer KA,Nelson MB,Bock JM,Imboden MT,Kaminsky LA

更新日期：2020-11-01 00:00:00

abstract：:The aims of this study were to determine the validity of fat mass of the trunk as a predictor for visceral fat area at the umbilicus level and to develop equations to predict visceral fat mass at the umbilicus level using fat mass of the trunk measured by dual-energy X-ray absorptiometry (DXA) and bioelectrical impeda...

journal_title：Journal of sports sciences

authors： Demura S,Sato S

更新日期：2007-05-01 00:00:00

abstract：:Maximal oxygen uptake VO(2max)) is considered the optimal method to assess aerobic fitness. The measurement of VO(2max), however, requires special equipment and training. Maximal exercise testing with determination of maximal power output offers a more simple approach. This study explores the relationship between [Vdo...

journal_title：Journal of sports sciences

authors： Dencker M,Thorsson O,Karlsson MK,Lindén C,Wollmer P,Andersen LB

更新日期：2008-11-01 00:00:00

abstract：:In order to investigate further the use of standardization procedures to determine training effects on cardiac dimension and function, two groups of subjects were analysed noninvasively. A control group of sedentary men (n = 7) and an experimental group of weight lifters (n = 12) volunteered for a standard M-mode echo...

journal_title：Journal of sports sciences

authors： Brown SP,Thompson WR

更新日期：1987-07-01 00:00:00

abstract：:The use of large cross-sectional norms on Brazilian children and youths aged 7 to 18 years within a six level competition plan helps to assess development status and monitor change. Non-athletic prototypes for comparative purposes are illustrated by the use of the lowest competitive level of 18 year olds to assess dif...

journal_title：Journal of sports sciences

authors： Matsudo VK,Rivet RE,Pereira MH

更新日期：1987-04-01 00:00:00

abstract：:The purpose of this study was to compare the kinetics, kinematics, and muscle activation patterns of the countermovement jump, the power clean, and the jump squat with the expectation of gaining a better understanding of the mechanism of transfer from the power clean to the vertical jump. Ground reaction forces, elect...

journal_title：Journal of sports sciences

authors： MacKenzie SJ,Lavers RJ,Wallace BB

更新日期：2014-01-01 00:00:00

abstract：:To observe the associations between single nucleotide polymorphisms (SNPs) of nicotinamide N-methyltransferase (NNMT) gene and sport performance and to analyse genotype associations of the associated SNPs with sport performance and relative maximal oxygen uptake ([Formula: see text]). Participants were selected from 6...

journal_title：Journal of sports sciences

authors： Li JH,Chen W,Zhu XJ,Lin YJ,Qiu LQ,Cai CX,Wang YH,Xiong Q,Chen F,Chen LH

更新日期：2017-11-01 00:00:00

abstract：:The aim of this study was to examine the effect of concentric warm-up exercise on eccentrically induced changes in muscle strength, range of motion, and soreness of the elbow flexors. Ten resistance-exercise naive participants performed intermittent incremental eccentric actions (42 in total) of the elbow flexor muscl...

journal_title：Journal of sports sciences

authors： Ingham SA,van Someren KA,Howatson G

更新日期：2010-11-01 00:00:00

abstract：:The purpose of this study was to determine the foot strike patterns (FSP), rearfoot position at initial contact (RPic, i.e., No INV/EVE) and foot rotation in children in relation to age. A total of 932 children aged 3 to 16 years participated in this study. A sagittal and frontal-plane video was recorded using a high-...

journal_title：Journal of sports sciences

authors： Latorre Román PÁ,Redondo Balboa F,Párraga Montilla J,Soto Hermoso VM,Consuegra González PJ,García Pinillos F

更新日期：2019-03-01 00:00:00

abstract：:This study used a quasi-applied research model to identify and develop potentially talented female soccer players. Athletes aged 15-19 years with a background in team ball sports or athletics were targeted for recruitment using advertisements and promotions through various media. Interested athletes attended a 2-day p...

journal_title：Journal of sports sciences

authors： Hoare DG,Warr CR

更新日期：2000-09-01 00:00:00

abstract：:In this study, we examined the influence of internal and external attention instructions on the performance of a pitch shot by golfers who were either highly skilled (mean handicap = 4) or low skilled (mean handicap = 26). Ten golfers in each skill group used a 9-iron to pitch a ball as close as possible to an orange ...

journal_title：Journal of sports sciences

authors： Perkins-Ceccato N,Passmore SR,Lee TD

更新日期：2003-08-01 00:00:00

abstract：:In this paper we examined the influence of opposing players constraining the decision-making of an attacker during shooting performance in futsal. Performance during 10 competitive matches was recorded and examined from the moment a shot was taken until the ball was intercepted or entered the goal in sequences of play...

journal_title：Journal of sports sciences

authors： Vilar L,Araújo D,Davids K,Correia V,Esteves PT

更新日期：2013-01-01 00:00:00

abstract：:Collective efficacy research has begun to progress from simply trying to verify the relationship between collective efficacy and performance to examining the mechanisms through which collective efficacy impacts on performance. To test hypotheses concerning the impact of collective efficacy on group goal selection and ...

journal_title：Journal of sports sciences

authors： Greenlees I,Graydon J,Maynard I

更新日期：2000-06-01 00:00:00

abstract：:Artificial turf is being used more and more often. It is more available than natural turf for use, requires much less maintenance and new products are able to comply with sport performance and athletes' safety. The purpose of this paper is to compare the mechanical and biomechanical responses of two different artifici...

journal_title：Journal of sports sciences

authors： Zanetti EM,Bignardi C,Franceschini G,Audenino AL

更新日期：2013-01-01 00:00:00

abstract：:The purpose of this study was to examine the effects of task and ego goal orientation and moral identity on prosocial and antisocial judgement and behaviour in football. The interaction between task and ego orientation in predicting these variables was also examined. Participants were 210 adult male footballers (age 2...

journal_title：Journal of sports sciences

authors： Sage L,Kavussanu M,Duda J

更新日期：2006-05-01 00:00:00

abstract：:In swimming relay races, various start techniques are performed by swimmers, but it remains unclear which technique leads to a better start performance. Therefore, the purpose of the present study was to compare the kinematic characteristics of different relay start techniques with the new starting block Omega OSB11. ...

journal_title：Journal of sports sciences

authors： Qiu X,Veiga S,Calvo AL,Kibele A,Navarro E

更新日期：2020-12-18 00:00:00

abstract：:The purpose of this meta-analytic review was to examine the extent and quality of research on the post-activation potentiation acute effect of rest interval manipulation on jumping performance. This manuscript adopted the recommendations from the Preferred Reporting Items for Systematic Reviews and Meta-Analyses State...

journal_title：Journal of sports sciences

authors： Gouvêa AL,Fernandes IA,César EP,Silva WA,Gomes PS

更新日期：2013-01-01 00:00:00