Abstract：
:To examine the strength and direction of the relationship between physical activity level, screen use and BMI in a cohort at ages 6, 8, 10 and 14 yrs as part of a prospective longitudinal cohort study. The sample comprised 1403 males and females who participated in the follow-up survey at 14 yrs of age between 2003 and 2005. Exploratory structural equation modelling was used to examine the interrelationships between physical activity level, BMI and screen time at 6, 8, 10 and 14 yrs. Predictors of BMI at 6, 8, 10 and 14 yrs explained 1.3, 76.1, 80.1 and 73.1 percent of the variances, respectively, with previous BMI the largest predictor [χ(2)=43.082, df=36, p=194]. Increased screen time predicted higher BMI and lower physical activity at 8 and 10 yrs but not 14 yrs. At 14 yrs, physical activity predicted BMI. Sedentary patterns of behaviour in early childhood were predictive of later and concurrent obesity, whereas physical activity was predictive of obesity in adolescence. Different intervention targets are required for children and adolescents.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Hands BP,Chivers PT,Parker HE,Beilin L,Kendall G,Larkin Ddoi
10.1016/j.jsams.2011.03.011subject
Has Abstractpub_date
2011-09-01 00:00:00pages
397-403issue
5eissn
1440-2440issn
1878-1861pii
S1440-2440(11)00073-9journal_volume
14pub_type
杂志文章abstract：OBJECTIVES:This study investigated the effects of a previously recommended dose of sprint training (ST) in young male soccer players of differing maturity status. DESIGN:Quasi-experimental design. METHODS:Male soccer players from two professional academies were divided into Pre-PHV (Training: n=12; Control: n=13) and...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.09.012
更新日期：2018-05-01 00:00:00
abstract：:One component of the recent obesity epidemic is the sedentary behaviour of children and adolescents e.g., use of video games consoles. The new generation of video games requires body movements and might thus increase activity. The aim of this study was to evaluate whether such games could have an effect on physical ac...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2010.07.009
更新日期：2011-01-01 00:00:00
abstract：OBJECTIVES:To determine the incidence of illness, and identify the relationship between sleep, training load and illness in nationally competitive Australian football athletes. Second, to assess multivariate effect between training load and/or sleep variables. DESIGN:Cohort study. METHODS:Retrospective analyses of pr...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.06.011
更新日期：2019-02-01 00:00:00
abstract：OBJECTIVES:To evaluate the effect of acute resistance exercise on multiple cognitive measures in late middle-aged adults and to address the question of whether general or selective cognitive improvements occur. DESIGN:A counterbalanced repeated-measures experimental design. METHODS:Thirty adults (mean age=58.1 ± 3.0 ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.02.007
更新日期：2014-01-01 00:00:00
abstract：:The primary aim of the study was to establish a link between aerobic adaptation and both the recovery from maximal short duration exercise, and the ability to maintain power output in a subsequent bout. The question as to whether the aerobic adaptations facilitating recovery are centrally or peripherally located was a...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(09)60005-0
更新日期：1998-12-01 00:00:00
abstract：OBJECTIVES:This study presents a comprehensive examination of the Sport Drug Control Model via survey data of elite Australian athletes. DESIGN:A cross-sectional nationwide mail survey. METHODS:A mail survey of 1237 elite Australian athletes was conducted. Structural equation modelling was employed to test the model....
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.10.249
更新日期：2014-11-01 00:00:00
abstract：OBJECTIVES:We aimed to clarify whether a short-term whole body vibration training has a beneficial effect on bone mass and structure in elderly men and women. DESIGN:Randomised controlled trial. METHODS:A total of 49 non-institutionalised elderly (20 men and 29 women) volunteered to participate in the study. Particip...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.jsams.2013.04.020
更新日期：2014-03-01 00:00:00
abstract：OBJECTIVES:To determine injury risk-workload associations in collegiate American Football. DESIGN:Retrospective analysis. METHODS:Workload and injury data was recorded from 52 players during a full NCAA football season. Acute, chronic, and a range of acute:chronic workload ratios (ACWR: 7:14, 7:21 and 7:28 day) calcu...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.05.019
更新日期：2018-12-01 00:00:00
abstract：:The aim of this study was to examine the variability in physiological and perceptual responses and time-motion profiles of various small-sided soccer game (SSG) formats (2 versus 2, 4 versus 4 and 6 versus 6 players) and regimes (interval and continuous). Typical error (TE) was calculated for mean heart rate as a perc...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.07.006
更新日期：2008-09-01 00:00:00
abstract：:The epidemiological rationale for a focus on physical activity (PA) among Aboriginal and Torres Strait Islander (ATSI) people is compelling. PA programs have significant potential to benefit ATSI people and their communities through their contribution to reducing chronic disease, improving physical and mental health a...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/s1440-2440(04)80276-7
更新日期：2004-04-01 00:00:00
abstract：OBJECTIVES:To assess the effect of ankle, knee, and hip kinematics on patellofemoral and tibiofemoral joint reaction forces (JRF) during bicycling. Secondarily, to assess if sex, horizontal saddle position, or crank arm length were related to JRFs, after accounting for kinematics. DESIGN:Experimental cross-sectional s...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.07.001
更新日期：2021-01-01 00:00:00
abstract：:Although injuries to golfers are not common, both survey studies and hospital emergency department records have provided objective evidence that golfers are sometimes at risk of injury. While many golf injury studies describe the associated mechanisms and types of injuries, less attention has been given to research re...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/s1440-2440(00)80049-3
更新日期：2000-03-01 00:00:00
abstract：OBJECTIVES:Muscular strength is an important component of fitness that enables the execution of a range of daily activities across the lifespan including sport participation. The purpose of this study was to examine changes in children's standing broad jump, an indicator of muscular strength, between 1985 and 2015. DE...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.04.005
更新日期：2018-10-01 00:00:00
abstract：:A paucity of empirical research exists into surf lifesaving competition from which coaches and athletes may formulate training and recovery strategies. Seventeen (male=9; female=8) high-performance surf lifesavers (21.2+/-3.9 years) contested multiple rounds of team and individual events at a 2-day surf lifesaving com...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.10.008
更新日期：2009-01-01 00:00:00
abstract：OBJECTIVES:We evaluated the benefits and relationship of the number of steps per day to the cardiometabolic risk factors: adiposity indicators; insulin resistance; and metabolic syndrome (MetS) in apparently healthy Brazilian middle-aged men. DESIGN:Cross-sectional. METHODS:Apparently healthy men (age: 50 ± 5 years; ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.04.017
更新日期：2014-05-01 00:00:00
abstract：:The purpose of this study was to investigate the differences of momentum transfer from the trunk and upper extremities to the racket between open and square stances for different skill levels players in the two-handed backhand stroke. The motion capture system with twenty-one reflective markers attached on anatomic la...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2009.06.002
更新日期：2010-07-01 00:00:00
abstract：OBJECTIVES:To compare catastrophic injury rates between the 14 South African Provincial Rugby Unions. DESIGN:A prospective, population-based study conducted among all South African Unions between 2008-2014. METHODS:Player numbers in each Union were obtained from South African Rugby's 2013 Census. Catastrophic injurie...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.01.232
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVES:To characterise foot strike and observe change in foot strike patterns with increasing distance during a 15km recreational running road race. To assess the impact of foot strike on running performance. DESIGN:Observational cross-sectional study. METHODS:Foot strike patterns were determined at the 3km and 1...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.12.018
更新日期：2020-06-01 00:00:00
abstract：:Prior electromyographic (EMG) analyses of the tennis serve have focused on the muscles in the hitting arm and shoulder region. This preliminary study aimed to examine the muscle activation patterns of selected lower trunk muscles during three different types of tennis serve--flat, topspin, and slice. Five male highly ...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(03)80276-1
更新日期：2003-12-01 00:00:00
abstract：OBJECTIVES:Tendinopathy, the most prevalent tendon disorder which is considered as the clinical diagnosis of pain and dysfunction, is common in sports and its prevalence is ever-increasing. Despite the lack of clarity about risk factors, various preventive interventions for tendinopathy have been investigated. The main...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/j.jsams.2015.03.008
更新日期：2016-03-01 00:00:00
abstract：OBJECTIVES:This study investigated the association between high-speed running (HSR) and sprint running (SR) and injuries within elite soccer players. The impact of intermittent aerobic fitness as measured by the end speed of the 30-15 intermittent fitness test (30-15VIFT) and high chronic workloads (average 21-day) as ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.05.016
更新日期：2018-03-01 00:00:00
abstract：:While taper is a well-established practice in most endurance sports, no study has investigated the effects of taper on repeated-sprint ability (RSA). Eleven female, recreational, team-sport athletes (mean+/-SD: age = 19+/-3 y, VO2max = 39.0+/-6.4 mLxkg(-1)xmin(-1)) trained intensively three times per week for six week...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(05)80011-8
更新日期：2005-06-01 00:00:00
abstract：OBJECTIVES:Many adolescents are not physically active enough to receive associated health benefits. Furthermore, participation in physical activity generally declines during adolescence, and to a greater degree for females. Longitudinal research is required to better understand the determinants of change in physical ac...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.09.012
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:This study investigated isometric and isokinetic hip strength in individuals with and without symptomatic femoroacetabular impingement (FAI). The specific aims were to: (i) determine whether differences exist in isometric and isokinetic hip strength measures between groups; (ii) compare hip strength agonist/...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2015.10.002
更新日期：2016-09-01 00:00:00
abstract：:The aim was to investigate the effects of fatigue induced by electrical stimulation superimposed onto voluntary muscular contractions on postural abilities and strategy (n=8). Two groups of subjects performed a fatiguing of the triceps surae, the first by voluntary muscular contractions (group VOL) and the second (n=8...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.10.006
更新日期：2009-01-01 00:00:00
abstract：OBJECTIVES:Despite physical literacy receiving increased attention as a potential gateway to physical activity participation, research establishing the link between physical literacy as a higher-order latent construct and physical activity is scant. The purpose of this study was to identify physical literacy profiles o...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.05.007
更新日期：2020-11-01 00:00:00
abstract：OBJECTIVES:To investigate the independent and combined associations of objectively measured moderate-to-vigorous physical activity (MVPA) and sedentary time (ST) with reading and arithmetic skills. DESIGN:Cross-sectional/prospective. METHODS:Participants were 89 boys and 69 girls aged 6-8 years. MVPA and ST were meas...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.11.003
更新日期：2017-06-01 00:00:00
abstract：OBJECTIVES:The aims of the present study were: (1) to characterize vBMD, bone structure and strength with peripheral quantitative computerized tomography (pQCT) in adolescent swimmers and compare it to normo-active controls (CG); and (2) to evaluate the possible interaction that weight-bearing sports might have on swim...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2015.11.007
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVES:To explore the hip and knee joint kinematics as well as muscle activation between participants with patellofemoral pain syndrome (PFPS) and controls, and to investigate the immediate effect of proximal femoral rotational taping on pain, joint kinematics, and muscle activation during single-leg squat (SLS). ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.07.009
更新日期：2015-07-01 00:00:00
abstract：OBJECTIVES:Resistance training in untrained adolescents can positively effect health-related fitness as well as improve muscular power and sports performance. The impact of resistance training on adolescent athletes is less clear. The purpose of this review is to determine the effectiveness of resistance training progr...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jsams.2012.02.005
更新日期：2012-11-01 00:00:00
