Abstract：
OBJECTIVES:This project examined the movement strategies adopted by highly experienced older aged lawn bowlers when performing Draw and Drive deliveries. DESIGN:Cross-sectional. METHODS:Twenty five experienced (10.2 ± 7.8 years) older aged lawn bowlers (67.3 ± 7.0 years) who play lawn bowls at least once per week volunteered to participate in this study. Participants performed 10 Draw and Drive deliveries at a target positioned 23 m away while standing on two force platforms (600 Hz), while an infrared motion capture system (200 Hz) recorded phases times and both foot and bowl positioning. Normalised root mean square (NoRMS) analyses was used to assess the bowl path consistency during the delivery phase. Correlation analyses assessed for relationships between age and experience and the spatiotemporal variables, with paired t-tests and effect size (ES) analyses used to examine differences between delivery types. RESULTS:None of the spatiotemporal or NoRMS data achieved more than low correlations with either age or playing experience (R2 < 0.2). Although bowl release velocities were significantly slower for the Draw 5.25 ± 0.72 m/s than for the Drive deliveries 6.40 ± 0.97 m/s (p < 0.001, ES = 1.96) there were limited changes in any of the spatiotemporal variables. NoRMS data remained largely unchanged between Draw (5.10 ± 1.65) and Drive (5.07 ± 1.49, p = 0.925, ES = 0.02) deliveries. CONCLUSIONS:These highly experienced lawn bowlers are adapting their technique to the different task demands of the two delivery types without altering their specific movement strategies.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Sayers MGLdoi
10.1016/j.jsams.2019.04.005subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1065-1070issue
9eissn
1440-2440issn
1878-1861pii
S1440-2440(18)31049-1journal_volume
22pub_type
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(01)80031-1
更新日期：2001-06-01 00:00:00
abstract：OBJECTIVES:To examine the effects of match-related and individual player characteristics on running performance in professional rugby league matches. DESIGN:Longitudinal observational study. METHODS:Global positioning system (GPS) and technical performance measures (attacking involvements and tackles made) were colle...
journal_title：Journal of science and medicine in sport
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abstract：OBJECTIVES:To assess the physiological and performance effects of a 12% carbohydrate-electrolyte beverage consumed at practically applicable time-points (i.e., before each half) throughout simulated soccer match-play. DESIGN:Randomised, counterbalanced, crossover. METHODS:Fed players (n=15) performed 90-min of soccer...
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.2017.04.015
更新日期：2017-12-01 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
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更新日期：2020-05-01 00:00:00
abstract：UNLABELLED:Previous studies on vibration training have all been based on protocols at different combinations of frequencies and amplitudes without controlling the loading intensity. OBJECTIVES:This study investigated the effect of an 8-week vibration training program, under identical acceleration loads with various fr...
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.2013.02.010
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:In winter terrain parks special airbags are used for skiers and snowboarders to practice jumps and achieve safe landings. However, in 2010 two skiers landed at the end of oval airbags. One suffered fatal, the other severe, injuries. The aim of this study was to identify parameters that lead to jumping over t...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.09.229
更新日期：2019-08-01 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...
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pub_type： 杂志文章,meta分析
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更新日期：2020-04-01 00:00:00
abstract：OBJECTIVES:This paper sought to determine the psychological characteristics and skills that are fundamental to batting success in the sport of cricket. DESIGN AND METHOD:Following on from the findings of an earlier qualitative investigation which suggested that a favourable mix of psychological attributes and skills a...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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journal_title：Journal of science and medicine in sport
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更新日期：2011-03-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
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更新日期：2003-12-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.02.008
更新日期：2019-07-01 00:00:00
abstract：:This study evaluated changes in range of motion (ROM) in competitive male and female junior tennis players participating in a specific conditioning program over a two-year period. Subjects were also compared to an age and sex-matched control group of players not performing the exercises. Fifty-one tennis players, 29 m...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(03)80008-7
更新日期：2003-03-01 00:00:00
abstract：OBJECTIVES:We investigated the level of cardiovascular stress associated with professional rugby union and whether these changes could be explained through external workload systems like GPS and video analysis. DESIGN:Urine samples (14 in game one and 13 in game two) were collected from professional rugby players befo...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2017-08-01 00:00:00
abstract：UNLABELLED:The punt kick is important in many football codes and support leg kinematics and ground reaction forces have been implicated in injury and performance in kicking. OBJECTIVES:To evaluate ground reaction forces and support leg kinematics in the punt kick. DESIGN:Cross sectional study. METHODS:Seven elite Au...
journal_title：Journal of science and medicine in sport
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doi：10.1016/j.jsams.2012.10.008
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVES:To investigate the effects of custom-made foot orthoses on the torque- and power-cadence relationships and perceived comfort during maximal cycling exercises in a population of competitive road cyclists. DESIGN:Randomised, repeated measures, participant-blinded controlled study. METHODS:Twenty-four competi...
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.2015.04.015
更新日期：2016-05-01 00:00:00
abstract：:The progress of injury prevention research in Australian football to date has been slow despite its recognition as a public health goal. In particular, field-based studies to identify injury risk factors and evaluate the effectiveness of injury prevention strategies need to be undertaken to ensure safety gains in this...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(03)80259-1
更新日期：2003-06-01 00:00:00
abstract：OBJECTIVES:To profile multi-year injury incidence and severity trends in elite junior tennis players from a national program. DESIGN:Prospective cohort. METHODS:Injury data was collated by sex, age and region for all nationally-supported Australian junior players (58m, 43f 13-18y) between 2012-2016. Injury was define...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2019-01-01 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
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doi：10.1016/j.jsams.2020.12.001
更新日期：2020-12-11 00:00:00
abstract：:The relationships between lower limb strength and two Australian football (AF) skills were assessed for 19 sub-elite AF players. Knee extension (KE) and knee flexion (KF) strength were assessed using a Biodex isokinetic dynamometer at angular velocities of 60, 240 and 360 degrees/sec. The two AF skills evaluated were ...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
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更新日期：2001-09-01 00:00:00
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更新日期：2002-12-01 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
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更新日期：2017-12-01 00:00:00
abstract：:Tendinopathy is characterised by a disorganised, haphazard healing response with no histological signs of inflammation. Research on tendon injuries is limited to the description of the condition and its management, and the pathogenesis is still ill defined. Together with known intrinsic and extrinsic factors, genetics...
journal_title：Journal of science and medicine in sport
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更新日期：2008-06-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/j.jsams.2014.11.001
更新日期：2016-01-01 00:00:00
abstract：OBJECTIVES:Biochemical (e.g. creatine kinase (CK)) and neuromuscular (e.g. peak power output (PPO)) markers of recovery are expensive and require specialist equipment. Perceptual measures are an effective alternative, yet most validated scales are too long for daily use. DESIGN:This study utilises a longitudinal multi...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.09.012
更新日期：2017-05-01 00:00:00
abstract：OBJECTIVES:While several cross-sectional studies have investigated the acute effects of shoe drop on running biomechanics, the long-term consequences are currently unknown. This study aimed to investigate if the drop of standard cushioned shoes induces specific adaptations in running technique over a six-month period 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.2017.01.238
更新日期：2017-08-01 00:00:00
abstract：:Agility skill is important in Australian Rules football (ARF) as it enables an attacking player to successfully evade an opponent. To date, no research has examined offensive agility techniques in ARF. There were two purposes of this study: first, to compare the change of direction (COD) speed of three offensive agili...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2010.06.002
更新日期：2011-01-01 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:To explore the impact of uninterrupted sitting versus sitting with resistance-type activity breaks on adolescents' postprandial glucose responses while consuming a diet varying in energy. DESIGN:Cross-over randomised trial. METHODS:Thirteen healthy participants (16.4±1.3years) completed a four-treatment cr...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.06.002
更新日期：2018-03-01 00:00:00
abstract：OBJECTIVE:To describe secular trends in the prevalence of overweight and obesity in Australian children in each state and territory. DESIGN:Systematic search and numerical meta-analysis. METHODS:A systematic search was conducted to identify all sources that objectively measured the height and weight of Australian chi...
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.2016.09.014
更新日期：2017-05-01 00:00:00
