Abstract：
OBJECTIVES:Athletes who train indoors during the winter months exhibit low serum 25-hydroxyvitamin D [25(OH)D] concentrations due to a lack of sunlight exposure. This has been linked to impaired exercise performance. The purpose of this study was to assess the effects of oral vitamin D₃ supplementation on selected physical fitness and injury parameters in elite ballet dancers. DESIGN:Controlled prospective study. METHODS:24 elite classical ballet dancers (intervention n=17; control n=7) participated in a controlled 4-month oral supplementation of vitamin D₃ (2000 IU per day). Isometric muscular strength and vertical jump height were measured pre and post intervention. Injury occurrence during the intervention period was also recorded by the in-house medical team. Repeated measures ANOVA and Mann-Whitney-U statistical tests were used and significance was set at p ≤ 0.05. RESULTS:Significant increases were noted for the intervention group for isometric strength (18.7%, p<0.01) and vertical jump (7.1%, p<0.01). The intervention group also sustained significantly less injuries than the controls during the study period (p<0.01). CONCLUSIONS:Oral supplementation of vitamin D₃ during the winter months has beneficial effects on muscular performance and injury occurrence in elite ballet dancers.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Wyon MA,Koutedakis Y,Wolman R,Nevill AM,Allen Ndoi
10.1016/j.jsams.2013.03.007subject
Has Abstractpub_date
2014-01-01 00:00:00pages
8-12issue
1eissn
1440-2440issn
1878-1861pii
S1440-2440(13)00055-8journal_volume
17pub_type
杂志文章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：:This study was undertaken to assess the reproducibility of a variable intensitycycling protocol using subjects of varying abilities, under warm humid conditions. Eleven subjects (Age 21.4+/-2.6 years; VO2peak 3.30+/-0.9 l x min(-1); peak power 322.8+/-86.3 W; mean+/-SD) performed a 60 min cycling trial punctuated with...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(02)80030-5
更新日期：2002-06-01 00:00:00
abstract：OBJECTIVES:Australian Football (AF) is a collision sport containing high injury rates in junior competition. Successful performance at the elite junior level not only requires superior specific football knowledge and skills, but also well developed fitness qualities. However, no studies have examined the link between p...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.09.005
更新日期：2013-07-01 00:00:00
abstract：OBJECTIVES:To survey injury/illness in the National Basketball Association over a 25-year period and examine the relationship of injury/illness to team performance. DESIGN:A retrospective correlational design. METHODS:Trends were examined in reported numbers of players injured/ill during a season and games missed due...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.05.005
更新日期：2015-05-01 00:00:00
abstract：:Jones's control model was adopted to investigate differences in the labelling of symptoms associated with pre-competition anxiety and self-confidence as a function of goal attainment expectation and competition goal generation. Team sport performers (N = 96) were divided into outcome, performance and process goal grou...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(05)80057-x
更新日期：2005-12-01 00:00:00
abstract：OBJECTIVES:To provide a systematic review of studies that investigated the effects of Active Break (AB) school-based interventions on Physical Activity (PA) levels, classroom behavior, cognitive functions, and academic performance in primary school children. DESIGN:Systematic review and meta-analysis. METHODS:Searche...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,meta分析
doi：10.1016/j.jsams.2019.10.008
更新日期：2020-04-01 00:00:00
abstract：OBJECTIVES:To examine the relationships between children's moderate-to-vigorous physical activity (MVPA), sedentary behaviours, and academic performance. DESIGN:This study investigated cross-sectional relationships between children's accelerometer-measured physical activity and sedentary behaviour patterns, and academ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.02.010
更新日期：2016-12-01 00:00:00
abstract：OBJECTIVES:To test the validity and intra-instrument reliability of the HJ-203 Omron pedometer when worn in different positions, under controlled and free-living conditions. DESIGN:Cross-sectional. METHODS:Forty healthy adults (20 men, 29.5±7.7 years) participated in three controlled tests, i.e. 20 step test, stair c...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.02.002
更新日期：2012-09-01 00:00:00
abstract：:Organised sports are a popular form of physical activity, but unfortunately, participation can result in injury. Despite this, there have been surprisingly few studies that have reported the population rate of sports injury. Data from the 2005 New South Wales (NSW, Australia) Population Health Survey were analysed to ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2009.04.003
更新日期：2010-05-01 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 aim of this study was to investigate if and to what extent small lateral wedges inserted under the ski boot, known as canting, could impact knee kinematics/kinetics, balance, and neuromuscular activity in recreational alpine skiers in the laboratory setting. DESIGN:Experimental, crossover study with rep...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.05.009
更新日期：2020-05-17 00:00:00
abstract：OBJECTIVES:To determine the incidence of Achilles tendinopathy in a large group of recreational runners and to determine risk factors for developing AT. DESIGN:Observational cohort study. METHODS:Runners registering for running events (5-42 km) in the Netherlands were eligible for inclusion. Main inclusion criteria w...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.12.013
更新日期：2020-05-01 00:00:00
abstract：OBJECTIVES:To compare 12 weeks of exercise training at two intensities on oxidative stress, antioxidants and inflammatory biomarkers in patients with type 2 diabetes (T2D). DESIGN:Randomized trial. METHODS:Thirty-six participants with T2D were randomized to complete either 12 weeks of treadmill based high-intensity i...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jsams.2017.03.014
更新日期：2017-10-01 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：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：:The purpose of this investigation was to determine if a single set of strenuous squat exercise would result in an acute oxidative stress, as demonstrated previously by a single sprint. Thirteen resistance trained men performed one set of 15 repetitions of barbell squats using 70% of one repetition maximum and a 30 s m...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2006.07.014
更新日期：2007-12-01 00:00:00
abstract：OBJECTIVES:To investigate the architectural and strength adaptations of the hamstrings following 6-weeks of inertial flywheel resistance training. DESIGN:Randomised, stratified training intervention METHODS: Twenty healthy males undertook 6-weeks of a conventional (n=10) or eccentrically biased (n=10) flywheel leg-cur...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.04.007
更新日期：2020-11-01 00:00:00
abstract：OBJECTIVES:To determine the effects of "strides" with a weighted-vest during a warm-up on endurance performance and its potential neuromuscular and metabolic mediators. A bout of resistance exercise can enhance subsequent high-intensity performance, but little is known about such priming exercise for endurance performa...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.12.005
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVES:The purpose of this meta-analysis was to examine the effect of flywheel (FW) resistance training with Eccentric Overload (FW-EOT) on muscle size and functional capacities (i.e. strength and power) in athletes and healthy subjects, and to compare FW-induced adaptations with those triggered by traditional resi...
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.2017.03.004
更新日期：2017-10-01 00:00:00
abstract：:This study examined the relationship between the bowling workload of first-class fast bowlers and injury with the aim of identifying a "safe" fast bowling workload threshold. Twelve male fast bowlers (mean age 25 years) from an Australian state cricket squad were observed for the 1999--2000 cricket season. Workload wa...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(04)80014-8
更新日期：2004-06-01 00:00:00
abstract：:The purpose of the present study was to accurately and reliably analyse the nature of movement undertaken by National Rugby League (NRL) referees during matches played in the 2000 season. The movements of NRL referees (n=5) were analysed from videotape footage of ten games. The researchers assigned each movement to on...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(03)80027-0
更新日期：2003-09-01 00:00:00
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：:Many overweight and obese individuals have difficulty in performing aerobic fitness tests that require maximal exertion. Therefore, the purpose of this study was to investigate the reliability of the Aerobic Power Index (API) submaximal aerobic exercise test, as well as associated variables consisting of oxygen uptake...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2006.05.024
更新日期：2007-06-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jsams.2017.04.016
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVES:Our primary objective was to report the presence of a conditioned pain modulation (CPM) effect in people with localised mid-portion Achilles tendinopathy and whether changes occur over a 12-week period. Our secondary objectives were to quantify the proportion of participants who present for tendinopathy rese...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.10.015
更新日期：2020-11-04 00:00:00
abstract：OBJECTIVES:The aim of this study was to tailor lumbo-pelvic-hip (LPH) injury reduction programmes in professional rugby union players based on screening data and examine its effectiveness. DESIGN:Prospective case controlled study. METHODS:Twenty-eight professional rugby union players were screened pre- and immediatel...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.07.004
更新日期：2018-03-01 00:00:00
abstract：:Osteoarthritis (OA) is the most common form of arthritis and is a major cause of disability in people aged over 65. Despite the major socioeconomic burden imposed by OA, the aetiology of this condition remains unclear. Although controversial, several metabolic factors have been implicated in the disease pathogenesis. ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/s1440-2440(04)80030-6
更新日期：2004-09-01 00:00:00
abstract：OBJECTIVES:This research explores snowsport injury trends in western Canadian resorts over the decade 2008-2018. DESIGN:Ecological study. METHODS:Injury and participation data on alpine skiing and snowboarding was provided by the Canada West Ski Areas Association for 2008-2018. Inclusion criteria were met by 29 of 52...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.12.001
更新日期：2020-12-11 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：:The purpose of this study was to determine if three training loads equated by volume differed in terms of the temporal, kinematic and kinetic characteristics of each set. Twelve experienced weightlifters (30.2+/-10.6 years old and 75.8+/-13.0 kg) performed three sets (6 x 30% 1RM, 3 x 60% 1RM and 2 x 90% 1RM) of balli...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(04)80004-5
更新日期：2004-06-01 00:00:00
