Abstract：
:The purpose of this project was to determine whether changing patterns of temperature and humidity, as expected in the morning versus afternoon, had a differential effect on thermoregulation and endurance performance. Eight male distance runners each participated in two heat pattern tests consisting of two hours treadmill running at 70%-maximum oxygen consumption. The mean heat load for each test was identical (22.2 degrees C wet bulb temperature) but either dry bulb temperature increased (24 to 27.5 degrees C) or decreased (27.5 to 24 degrees C) over the course of the two hour heat stress test. Whole body sweat rate was 10.7% higher (p<0.05) and there was greater plasma volume loss (2.7 versus 1.6%, p<0.05) in the cooling versus warming pattern test. Mean skin and body temperature changed in a significantly different (p<0.05) manner between the two patterns and closely followed ambient dry bulb temperature change. The thermoregulatory variables of heart rate and rectal temperature were not affected and performance did not differ between pattern tests. Ratings of perceived exertion (RPE) and oxygen consumption were also not significantly different between cooling and warming test. In summary, although some minor differences were noted, thermal homeostasis was maintained equally well during either warming or cooling for wet bulb temperatures between 24 and 27 degrees C. The mean heat load is therefore more important than changing patterns of temperature and humidity in determining an individual's physiological response to exercise in a warm environment.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Cochrane DJ,Sleivert GGdoi
10.1016/s1440-2440(99)80005-xkeywords:
subject
Has Abstractpub_date
1999-12-01 00:00:00pages
322-32issue
4eissn
1440-2440issn
1878-1861pii
S1440-2440(99)80005-Xjournal_volume
2pub_type
杂志文章abstract：OBJECTIVES:The purpose of this study was to examine the use of home exercise equipment in the form of exergame cycling compared to a stationary recumbent bicycle ergometer in front of TV in the home over 3 months among parents of an intervention with their inactive children. The primary outcome was bike use (total week...
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.2018.03.013
更新日期：2018-10-01 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: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：OBJECTIVES:This study examined whether young (15-19 years old) high-performance netball players exhibit different landing mechanics compared to female controls who do not participate in sports requiring frequent landings. DESIGN:Comparative, cross-sectional. METHODS:Lower limb kinematics and kinetics from 23 youth hi...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.08.017
更新日期：2020-01-01 00:00:00
abstract：:To delineate and compare the isokinetic neck strength profile of senior elite rugby players. One hundred and eighty-nine rugby players (mean; 95% confidence intervals: 24.31; 23.87-24.75 years) were sampled from South African provincial teams and assessed anthropometrically and isokinetically according to a set protoc...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.01.009
更新日期：2008-04-01 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：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
doi：10.1016/j.jsams.2018.06.006
更新日期：2019-01-01 00:00:00
abstract：OBJECTIVES:This is the first study to evaluate the mechanical sensitivity, clinical classifications and prevalence of groin pain in Australian football players. DESIGN:Case-control. METHODS:Professional (n=66) and semi-professional (n=9) Australian football players with and without current or previous groin injuries ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2015.12.516
更新日期：2016-10-01 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:This study aimed to determine adjustments in spring-mass model characteristics, plantar loading and foot mobility induced by an exhaustive run. DESIGN:Within-participants repeated measures. METHODS:Eleven highly-trained adolescent middle-distance runners ran to exhaustion on a treadmill at a constant veloc...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.01.007
更新日期：2015-03-01 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：:Attraction to physical activity is important to an individual's intrinsic motivation to engage in play, games and sports. While there are instruments designed to measure attraction to physical activity in middle childhood years, the lack of authentic measures in young children has impeded research in this area. In thi...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2009.05.009
更新日期：2009-09-01 00:00:00
abstract：OBJECTIVES:While there is some evidence that aerobic fitness is positively associated with executive functioning in children, evidence for a relation between children's daily physical activity and their executive functioning is limited. The objective was to examine associations between objectively measured daily physic...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.09.006
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:To investigate changes in renal status from exercise in the heat with acclimatisation and to evaluate surrogates markers of Acute Kidney Injury. DESIGN:Prospective observational cohort study. METHODS:20 male volunteers performed 60 min standardised exercise in the heat, at baseline and on four subsequent o...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.04.010
更新日期：2019-09-01 00:00:00
abstract：:Children's physical activity (PA) patterns change from day to day. This intra-individual variability affects precision when measuring key physical activity and sedentary behaviour variables. This paper discusses strategies used to reduce the random error associated with intra-individual variability and demonstrates th...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2008.09.009
更新日期：2009-09-01 00:00:00
abstract：:Recently Sports Medicine Australia (SMA) and the Australian Association for Exercise and Sport Science (AAESS) developed guidelines for pre-exercise screening and supervision of fitness testing, based on the American College of Sports Medicine (ACSM) system. The procedure involves classifying individuals into one of t...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(98)80007-8
更新日期：1998-01-01 00:00:00
abstract：OBJECTIVES:To compare knee confidence and kinesiophobia (fear of re-injury) in those with and without knee osteoarthritis following anterior cruciate ligament reconstruction, and determine whether poorer knee confidence is associated with greater kinesiophobia, worse knee-related symptoms, and functional impairments in...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.09.011
更新日期：2015-09-01 00:00:00
abstract：OBJECTIVES:With increasingly sedentary lifestyles, opportunities for physical activity such as active transport to school need to be promoted in adolescents. This study examines personal, social and environmental correlates of active transport to school among adolescents including sociodemographics, behavioural pattern...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.06.012
更新日期：2015-07-01 00:00:00
abstract：OBJECTIVES:To examine urban/rural differences in children's independent mobility; associations between mobility licences and children's independent mobility; and potential correlates of mobility licences. DESIGN:Cross-sectional study of 430 primary (48% boys; 72% urban) and 258 secondary schoolchildren (52% boys; 51.6...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.03.005
更新日期：2012-11-01 00:00:00
abstract：OBJECTIVES:We tested the hypothesis that fast skeletal muscle troponin I (fsTnI) concentration in serum would increase more than those of slow skeletal muscle troponin I (ssTnI) after eccentric exercise of the elbow flexors using a sensitive blood marker to track fibre specific muscle damage. DESIGN:Observational comp...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.05.006
更新日期：2013-01-01 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：:Reaction time (RT), movement time (MT), total response time (RMT) and accuracy of elite and novice fencers was studied under three levels of target choice (single-, two- and four-targets) with three variations of movement distance (short, medium and long lunge). In addition, electromyographic activity (EMG) of selecte...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(00)80011-0
更新日期：2000-12-01 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: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：OBJECTIVES:To compare the efficacy of two exercise programmes in reducing pain and disability for individuals with non-specific low back pain and to examine the underlying mechanical factors related to pain and disability for individuals with NSLBP. DESIGN:A single-blind, randomized controlled trial. METHODS:Eighty p...
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.2014.11.006
更新日期：2015-11-01 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: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
doi：10.1016/j.jsams.2011.07.003
更新日期：2012-01-01 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 aimed to assess the feasibility and efficacy of the Great Leaders Active StudentS (GLASS) program, a school-based peer-led physical activity and object control skill intervention. DESIGN:The study employed a quasi-experimental design. METHODS:The study was conducted in two elementary schools, on...
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：:Sports-related injuries are a significant health problem within Australia, and constitute a national health priority. There is limited Australian research data available on factors that contribute to triathlon injuries, and in particular on how training patterns relate to injury risk. This study examined the associati...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(04)80262-7
更新日期：2004-12-01 00:00:00
