Abstract:
:Six men performed a total of 23 modified Wingate power tests against 5.5 kp (53.9 N) resistance on a Monark 864 ergometer. Breath-by-breath VO2 was measured using a SensorMedics 4400 metabolic cart. Peak anaerobic power (highest 5 s; mean(s.e.m.)) was 819(16) W (11.1(0.6) W kg-1) and anaerobic capacity (work in 30 s; mean(s.e.m.)) was 18.2(0.2) kJ (248(11) J kg-1). Contributions of ATP-PC, glycolytic and aerobic systems each 5 s were estimated. ATP-PC power (mean(s.e.m.)) peaked at 750(14) W (10.2(0.6) W kg-1) in the first 5 s; glycolytic power (mean(s.e.m.] peaked at 497(11) W (6.8(0.7) W kg-1) between 10 and 15 s into the test; aerobic power (mean(s.e.m.)) peaked at 157(5) W (2.1(0.3) W kg-1) during the last 5 s of the test, and VO2 exceeded 90% VO2peak Over the entire 30 s, aerobic contribution was 16%, glycolytic contribution was 56%, and ATP-PC contribution was 28%. It is concluded that glycolytic power peaks within the first 15 s of high power exercise; also, aerobic metabolism responds quickly during 'anaerobic' exercise and makes a significant contribution to the work performed.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Smith JC,Hill DWdoi
10.1136/bjsm.25.4.196subject
Has Abstractpub_date
1991-12-01 00:00:00pages
196-9issue
4eissn
0306-3674issn
1473-0480journal_volume
25pub_type
杂志文章abstract:BACKGROUND:The ability to predict injury is difficult. Prior injury is the only risk factor that has been reported consistently in multiple research studies. Convenient and easy to perform, physical performance tests (PPTs) have great allure as prognostic factors. METHODS:11 PPTs were issued to 359 participants over t...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-094885
更新日期:2016-11-01 00:00:00
abstract::Soccer is the world's most popular sport, with over 200 million participants world wide. Fractures account for only 4-9% of acute injuries, and hip fracture-dislocation is extremely uncommon. The potentially serious long term sequelae require that team physicians have an awareness of this injury. Two cases of traumati...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2003.005736
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVES:The 6-minute walk test (6MWT) is a frequently used indicator of functional exercise capacity. The goals of this study were to compare the 6-minute walk performance of three paediatric patient groups with that of healthy peers, to assess differences between published reference values and to investigate which ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2008.048512
更新日期:2010-03-01 00:00:00
abstract::Tournament water skiing is an increasingly popular and internationally successful sport in Great Britain, despite the climate. The kinematics and injury patterns of the three disciplines will be unfamiliar to most clinicians and are described, with estimation of the stresses. Advances in equipment over the last 15 yea...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.30.2.90
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:The current methods measuring sports activity after anterior cruciate ligament (ACL) injury are commonly restricted to the most knee-demanding sports, and do not consider participation in multiple sports. We therefore developed an online activity survey to prospectively record the monthly participation in al...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-092075
更新日期:2014-05-01 00:00:00
abstract::During the competitive season of 1990, 155 British triathletes whose competitive distances varied from sprint to full ironman, and who self-classified themselves as recreational, intermediate or élite, kept a training diary for an 8-week period. They gave details of injuries sustained while training for, or competing ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.3.191
更新日期:1994-09-01 00:00:00
abstract::Sleep is fundamental to normal physiological and cognitive function. Sleep promotion strategies have been used extensively in clinical settings, as a treatment for various ailments (ie, insomnia). However, sleep problems are prevalent outside these realms, with 56% of American, 31% of Western European and 29% of Japan...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-095759
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVE:To assess whether a platelet-rich plasma (PRP) injection leads to an enhanced tendon structure and neovascularisation, measured with ultrasonographic techniques, in chronic midportion Achilles tendinopathy. DESIGN:Double-blind, randomised, placebo-controlled clinical trial. SETTING:Sports medical department...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2010.076398
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:High knee abduction moment (KAM) landing mechanics, measured in the biomechanics laboratory, can successfully identify female athletes at increased risk for anterior cruciate ligament (ACL) injury. METHODS:The authors validated a simpler, clinic-based ACL injury prediction algorithm to identify female athle...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2010.072843
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVES:Patients with thoracic outlet syndrome (TOS) complain of many subjective symptoms that are difficult to measure and quantify. In this study we have tried to assess the weakness (muscle strength) and fatigue (endurance) of these patients with an objective measurement method, isokinetic muscle testing. METHOD...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2004.013706
更新日期:2005-03-01 00:00:00
abstract::Rubella is now an uncommon disease, and its neurological complications are rarely encountered. One complication, acute transverse myelitis, has been described in a few case reports and usually has an unfavourable outcome. The case is presented of an elite swimmer who developed transverse myelitis after rubella, which ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.020685
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:Accumulating evidence emphasises a relationship between prolonged sitting and increased risk for cardiometabolic disorders and premature death irrespective of the protective effects of physical activity. Primary care physicians have the potential to play a key role in modifying patients' sedentary behaviour ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsports-2012-091357
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:Several stressors such as cold water immersion, hyperoxic exposure and decompression-induced circulating bubbles can alter arterial circulation after a dive. The aim of this study was to investigate the arterial modifications induced by a specific diving training including repeated hyperbaric exposures and ph...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.043364
更新日期:2009-07-01 00:00:00
abstract::In his comments on our previous article, Hinton-Bayre advocates the use of the regression based approach in most cases of determining reliable change. This article comments on Hinton-Bayre's argument, discusses cases where the regression method might not be the preferred method, and presents adjustments that make the ...
journal_title:British journal of sports medicine
pub_type: 评论,杂志文章,评审
doi:10.1136/bjsm.2005.023713
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:To examine whether people with recurrent ankle sprain, have specific physical and sensorimotor deficits. DESIGN:A systematic review of journal articles in English using electronic databases to September 2009. Included articles compared physical or sensorimotor measures in people with recurrent (≥2) ankle spr...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsm.2010.077404
更新日期:2011-06-01 00:00:00
abstract::A case of cervical disc herniation occurring in close association with playing football is reported. The handling of neck injuries in football players is outlined. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.19.1.43
更新日期:1985-03-01 00:00:00
abstract:OBJECTIVE:To review and determine the effectiveness of exercise treatment in osteoarthritis of the knee. METHODS:A computerised literature search of Medline was carried out searching between June 1966 and January 2000. RESULTS:Twenty three randomised controlled trials were identified from the literature. Only three t...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.34.5.326
更新日期:2000-10-01 00:00:00
abstract:BACKGROUND:Very little data have been published on medical imaging services at disability games. 7.9 million euros (£6.6 million, US$11 million) were invested in setting up radiology facilities within purpose built polyclinics at the London 2012 Olympic and Paralympic games. This paper details imaging services at the 2...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-093386
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Home and supervised exercise programmes consisting of stretching and eccentric exercises have been recommended for the management of lateral elbow tendinopathy (LET). No studies have examined their comparative efficacy effectiveness. OBJECTIVE:In this study, whether a home exercise programme is more success...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.049759
更新日期:2010-06-01 00:00:00
abstract::Jet skiing is a rapidly growing sport. The craft incorporate safety features and the manufacturers issue detailed safety instructions. Racing is conducted with adequate attention to clothing, safety and insurance. However, casual use is widespread and is sometimes irresponsible. Serious injuries to riders are uncommon...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.25.4.232
更新日期:1991-12-01 00:00:00
abstract:OBJECTIVE:No studies have been performed on cruising sailors who spend most of the year on offshore cruising sailboats. To gain a better understanding of this population, traumatic events occurring in this group of sailors were studied to define appropriate means of prevention. DESIGN, SETTING AND PATIENTS:Primary car...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.033175
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:There seems to be a discrepancy between the available heat stress guidelines and the actual risk of heat-related illness among professional beach volleyball players competing under hot and humid conditions. OBJECTIVE:To monitor heat stress and record cases of heat-related medical forfeits on the Swatch FIVB...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-091102
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Growth factor technologies are increasingly used to enhance healing in musculoskeletal injuries, particularly in sports medicine. Two such products; platelet-rich plasma (PRP) and autologous blood, have a growing body of supporting evidence. No previous trial has directly compared the efficacy of these two m...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2010.082503
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVES:To evaluate injury patterns of snowbladers and compare them with those of skiers and snowboarders. To determine possible effects of helmet use in these sports on injury to the head and neck. METHODS:This prospective case series observational study was conducted by collecting the injury reports from the ski ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.37.6.511
更新日期:2003-12-01 00:00:00
abstract:OBJECTIVES:To compare versions 8 and 10 of the Orchard Sports Injury Classification System (OSICS) to determine whether the revised version of OSICS has improved its use in a sports medicine setting, and to assess the inter-rater reliability of OSICS-10. METHODS:Injury surveillance data, gathered over a 2 year period ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.051979
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:To determine whether there are objective findings of tendinosis in a rabbit tendinopathy model on exercised and contralateral (non-exercised) Achilles tendons. DESIGN:Four groups of six New Zealand white rabbits per group were used. The animals of one (control) group were not subjected to exercise/stimulatio...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2009.068122
更新日期:2011-04-01 00:00:00
abstract::In Part II of the study, the British Olympic track (sprint) squad cyclists demonstrated reductions in body fat index, % body fat and endomorphy (p greater than .05), increased Hb and PCV % (p greater than .05), and lowered HR at rest and in warm-up exercise (p greater than .05), but no change in leg power. Repeated in...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.16.1.13
更新日期:1982-03-01 00:00:00
abstract:OBJECTIVE:To investigate the efficacy and safety of dietary supplements for patients with osteoarthritis. DESIGN:An intervention systematic review with random effects meta-analysis and meta-regression. DATA SOURCES:MEDLINE, EMBASE, Cochrane Register of Controlled Trials, Allied and Complementary Medicine and Cumulati...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2016-097333
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE:Para athletes reap significant health benefits from sport but are vulnerable to non-accidental harms. Little is known about the types and impacts of non-accidental harms Para athletes face. In this literature review, we summarise current knowledge and suggest priorities for future research related to non-acci...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2018-099854
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:To study the long term effect of tibial shaft fractures treated by immobilisation in a long leg cast on the calf muscle bulk. METHODS:Computed tomography scans were performed at fixed points on the lower legs of 23 non-professional athletes who sustained closed tibial fractures 16 years previously. Length o...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.020743
更新日期:2006-06-01 00:00:00