Abstract：
:Although it has been generally assumed that the risk of decompression sickness is virtually zero during a single breath-hold dive in humans, repeated dives may result in a cumulative increase in the tissue and blood nitrogen tension. Many species of marine mammals perform extensive foraging bouts with deep and long dives interspersed by a short surface interval, and some human divers regularly perform repeated dives to 30-40 m or a single dive to more than 200 m, all of which may result in nitrogen concentrations that elicit symptoms of decompression sickness. Neurological problems have been reported in humans after single or repeated dives and recent necropsy reports in stranded marine mammals were suggestive of decompression sickness-like symptoms. Modelling attempts have suggested that marine mammals may live permanently with elevated nitrogen concentrations and may be at risk when altering their dive behaviour. In humans, non-pathogenic bubbles have been recorded and symptoms of decompression sickness have been reported after repeated dives to modest depths. The mechanisms implicated in these accidents indicate that repeated breath-hold dives with short surface intervals are factors that predispose to decompression sickness. During deep diving, the effect of pulmonary shunts and/or lung collapse may play a major role in reducing the incidence of decompression sickness in humans and marine mammals.
journal_name
J Sports Scijournal_title
Journal of sports sciencesauthors
Lemaitre F,Fahlman A,Gardette B,Kohshi Kdoi
10.1080/02640410903121351subject
Has Abstractpub_date
2009-12-01 00:00:00pages
1519-34issue
14eissn
0264-0414issn
1466-447Xpii
917440109journal_volume
27pub_type
杂志文章,评审abstract：:Recent research has challenged the typical pre-match and half-time (HT) interval warm-up (WU) routines currently used by professional soccer players. This study surveyed 2010/11 season WU strategies and their underpinning scientific reasoning and situational factors via an internet-based questionnaire, which was distr...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2013.792946
更新日期：2013-01-01 00:00:00
abstract：:The purpose was to evaluate the traditional method, of visually focusing on the ball, in comparison to focusing on the hole, during the putting stroke. The study design consisted of a pretest, a 4-week practice period, and a posttest. Participants (n = 31, handicap: 18.7 ± 10.4) practised using only one of the two gaz...
journal_title：Journal of sports sciences
pub_type： 临床试验,杂志文章
doi：10.1080/02640414.2011.591418
更新日期：2011-09-01 00:00:00
abstract：:The aim of the present study was to examine reliability and construct convergent validity of Player Load™ (PL) from trunk-mounted accelerometry, expressed as a cumulative measure and an intensity measure (PL · min-1). Fifteen male participants twice performed an overground football match simulation that included four ...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2016.1229015
更新日期：2017-09-01 00:00:00
abstract：:The aim of this study was to investigate the effects of adding vertical/horizontal plyometrics to the soccer training routine on jumping and sprinting performance in U-20 soccer players. The vertical jumping group (VJG) performed countermovement jumps (CMJ), while the horizontal jumping group (HJG) executed horizontal...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2015.1081394
更新日期：2015-01-01 00:00:00
abstract：:When analysing physical activity (PA) levels using accelerometry, the epoch setting is critical to capture intensity-specific PA correctly. The aim of the present study was to investigate the PA intensity signatures related to metabolic health in children using different epoch settings. A sample of 841 Norwegian child...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2019.1693320
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
pub_type： 杂志文章
doi：10.1080/02640414.2012.711487
更新日期：2012-01-01 00:00:00
abstract：:Children and adolescents mature at different rates such that individuals competing in the same competition may differ in physical and biological maturity despite being of similar chronological age. Whether or not differences translate into on-field performance in competition is relatively unknown. This study investiga...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2013.843016
更新日期：2014-01-01 00:00:00
abstract：:Although research into coaching has increased considerably during the last two decades, an area of neglect has been that of the professional youth coach. The aim of this study was to investigate the working behaviours of six top-level professional soccer coaches. Data were collected using a modified version of the Ari...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640410500131944
更新日期：2006-04-01 00:00:00
abstract：:The aim of the present study was to investigate the influence of different types of tasks performed with or without an electronic device (tablet) on pre-sleep alertness, subsequent sleep quality and next-day athletic performance. Eight highly trained netball players attended a sleep laboratory for pre-sleep testing, p...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2017.1287936
更新日期：2018-01-01 00:00:00
abstract：:This study examines the association between prolonged sedentary time and breaks in sedentary time with cardiometabolic risk in 10-14-year-old children. This cross-sectional design study analysed accelerometry-determined sedentary behaviour and physical activity collected over 7 days from 111 (66 girls) UK schoolchildr...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2016.1260150
更新日期：2017-11-01 00:00:00
abstract：:In any situation where heat production as a result of physical exercise exceeds heat elimination from the body by radiation and convection, the body will depend on sweat secretion and evaporation for its thermoregulation. Sweat secretion will reach maximal levels at high energy expenditures in the heat but will be lim...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640419108729871
更新日期：1991-07-01 00:00:00
abstract：:The aim of this study was to determine the effects of frequency of verbal encouragement during maximal exercise testing. Twenty-eight participants (12 males, 16 females) aged 20.9 +/- 1.5 years (mean +/- s) performed a maximal exercise test (VO2max) on a treadmill without any verbal encouragement. The participants wer...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/026404102753576125
更新日期：2002-04-01 00:00:00
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
pub_type： 杂志文章
doi：10.1080/02640414.2012.738922
更新日期：2013-01-01 00:00:00
abstract：:The number and type of landings performed after blocking during volleyball matches has been related to the potential risk of ACL injury. The aim of the present study was to determine whether gender affects the frequency of specific blocking landing techniques with potential risk of ACL injury from the perspective of f...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2017.1346817
更新日期：2018-04-01 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
pub_type： 杂志文章
doi：10.1080/02640418708729763
更新日期：1987-04-01 00:00:00
abstract：:The aims of this study were: (1) to characterize selected fitness and health attributes of two types of habitual recreational off-road vehicle riders - off-road motorcyclists and all-terrain vehicle riders; (2) to explore differences among riders in terms of vehicle type, age, and gender; and (3) to compare the fitnes...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2010.510847
更新日期：2010-11-01 00:00:00
abstract：:A high ambient temperature reduces the capacity to perform prolonged exercise. Total carbohydrate oxidation is less, and thus glycogen depletion is not limiting. Fluid ingestion in the heat should, therefore, focus on maintenance of hydration status rather than on substrate provision. Six healthy males cycled to exhau...
journal_title：Journal of sports sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/026404100402403
更新日期：2000-05-01 00:00:00
abstract：:The main purpose of this study was to compare the effects of resistance training (RT) performed with different training volumes on phase angle (PhA), body water components, and muscle quality (MQ) in untrained older adult women. A second purpose was to assess the relationship between PhA and MQ. Sixty-two older adult ...
journal_title：Journal of sports sciences
pub_type： 杂志文章,随机对照试验
doi：10.1080/02640414.2018.1479103
更新日期：2018-12-01 00:00:00
abstract：:The inflammatory responsive cytokine interleukin-6 (IL-6) helps regulate immune responses to exercise. Evidence suggests that increases in IL-6 are related to exercise duration and intensity. However, the moderating effect of sex and underlying mediators have received limited attention. We compared plasma IL-6 respons...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640410500245645
更新日期：2006-08-01 00:00:00
abstract：:The purpose of this study was to provide electromyographic feedback for (1) pedagogical advice in motor learning, (2) the ergonomics of materials choice and (3) competition. For these purposes: (1) EMG data were collected for the Stem Christie, the Stem Turn and the Parallel Christie (three basic ski initiation drills...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640419408732169
更新日期：1994-06-01 00:00:00
abstract：:The aim of this study was to assess isokinetic torque, work and power between non-injured, ACL (anterior cruciate ligament)-deficient and ACL-reconstructed individuals. Ten healthy, non-injured individuals, seven unilateral ACL-deficient individuals and six unilateral ACL-reconstructed individuals were assessed for is...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/026404102320219392
更新日期：2002-09-01 00:00:00
abstract：:Generally, swimmers pace themselves using their own judgement and the poolside clock during swimming training, fitness testing protocols or scientific investigation. The Aquapacer is a new pacing device that can be used to pace the swimming speed or stroke rate of the swimmer. The aims of this study were to determine ...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/026404102760000044
更新日期：2002-07-01 00:00:00
abstract：:Officiating bias is thought to contribute to home advantage. Recent research has shown that sports with subjective officiating tend to experience greater home advantage and that referees' decisions can be influenced by crowd noise, but little work has been done to examine whether individual referees vary in their home...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640410601038576
更新日期：2007-09-01 00:00:00
abstract：:The presence of the relative age effect (RAE) has been widely reported; however, its underlying causes have not yet been determined. With this in mind, the present study examined if anthropometry and performance were different amongst older and younger soccer players born in the same year. Eighty-eight young soccer pl...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2013.832355
更新日期：2014-01-01 00:00:00
abstract：:A plausible explanation for the ancient long jump records from Greek antiquity is sought on the basis of pictorial and written sources, and corroborated with practical tests. Ancient sources report that athletes jumped more than 15 m with weights in their hands, which enabled them to jump further than without these we...
journal_title：Journal of sports sciences
pub_type： 历史文章,杂志文章
doi：10.1080/02640410400022037
更新日期：2005-10-01 00:00:00
abstract：:This paper investigates how tennis players control stroke-induced vibration. Its aim is to characterise how a tennis player deals with entering vibration waves or how he/she has the ability to finely adjust them. A specific experimental procedure was designed, based on simultaneously collecting sets of kinematic, vibr...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2016.1227868
更新日期：2017-08-01 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
pub_type： 杂志文章,随机对照试验
doi：10.1080/02640414.2012.738923
更新日期：2013-01-01 00:00:00
abstract：:Coaches are central to talent development in youth soccer and what they say and do impacts on players' achievements and well-being. Researchers have systematically observed coach behaviour and practice activities within this setting (i.e. 'what coaches do'). We review this research in light of contemporary discussion ...
journal_title：Journal of sports sciences
pub_type： 杂志文章,评审
doi：10.1080/02640414.2012.721930
更新日期：2012-01-01 00:00:00
abstract：:The purpose of the study was to investigate the sensitivity of an alternative maximal accumulated oxygen deficit (MAODALT) method to discriminate the "anaerobic" capacity while comparing: least trained (LT) participants (n = 12), moderately trained (MT) participants (n = 12), endurance trained (ET) participants (n = 1...
journal_title：Journal of sports sciences
pub_type： 杂志文章
doi：10.1080/02640414.2016.1273539
更新日期：2017-12-01 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
pub_type： 杂志文章
doi：10.1080/0264041031000101980
更新日期：2003-08-01 00:00:00
