Abstract:
:Twenty-one previously sedentary male volunteers (aged 35-50 years) undertook a defined marathon training programme lasting 30 weeks. At weeks 0 (T1), 15 (T2) and 30 (T3) they underwent measurement of maximal oxygen uptake (VO2 max), submaximal VO2 and submaximal plasma lactate concentration during cycle ergometry. No exercise was taken for 24-48 hours prior to testing. During training aerobic power increased significantly (p less than 0.001) from an initial VO2 max at T1 of 33.9 +/- 6 (mean +/- sd) ml.kg-1min-1 to 39 +/- 5.6 ml.kg-1min-1 at T2 but the T3 value of 39.2 +/- 5.2 ml.kg-1min-1 was not significantly different from that at T2. Plasma lactate concentration of 4 mmol.l-1 (OBLAw) occurred at a significantly (P less than 0.05) higher workload (155 +/- 28 w) at T2 compared with T1 (132 +/- 30 w) but the T3 figure was 137 +/- 34 w. OBLA VO2 at T1 was 2.04 +/- 0.42 l.min-1, at T2 was 2.24 +/- 0.04 l.min-1 but at T3 was 2.03 +/- 0.30 l.min-1 (T1:T2 P less than 0.05, T1:T3 NS). OBLA % VO2 max at T1 was 75 +/- 12%, at T2 was 73 +/- 11% but at T3 was 62 +/- 10% (T1:T2 NS, T1:T3 P less than 0.01).
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Rumley AG,Taylor R,Grant S,Pettigrew AR,Findlay I,Dargie Hdoi
10.1136/bjsm.22.1.31subject
Has Abstractpub_date
1988-03-01 00:00:00pages
31-4issue
1eissn
0306-3674issn
1473-0480journal_volume
22pub_type
杂志文章abstract:AIM:To describe injury and illness incidence during the 2018 Winter Olympic Games (WOG) by Team USA. METHODS:A descriptive observational study. We used registered Team USA Olympic athletes' electronic medical records to review preparticipation health histories and medical encounters immediately prior to and throughout...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2018-100015
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:Participation in regular exercise and athletic activities across the lifespan is encouraged to maintain the cardiovascular and musculoskeletal systems and general wellbeing. Before the menopause there is an increased risk of anterior cruciate ligament (ACL) injuries in female athletes, whereas there is an in...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.054296
更新日期:2010-09-01 00:00:00
abstract::The blood glucose response of a male ultramarathon runner was monitored throughout a 1005-km race. Before the race the runner had a fasting blood glucose concentration of 5.1 mM. At no stage during the race were his mean blood glucose levels less than 5.8 mM. This was partially attributed to the eating patterns of the...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.26.1.66
更新日期:1992-03-01 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::The central governor model has recently been proposed as a general model to explain the phenomenon of fatigue. It proposes that the subconscious brain regulates power output (pacing strategy) by modulating motor unit recruitment to preserve whole body homoeostasis and prevent catastrophic physiological failure such as...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2005.023028
更新日期:2006-07-01 00:00:00
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:BACKGROUND:The methodological quality of studies on treatment of anterior cruciate ligament (ACL) injuries in skeletally immature children after ACL injury is low, and no prospective studies have evaluated the functional outcomes following a non-operative treatment algorithm. PURPOSE:To report changes in knee function...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-092066
更新日期:2013-05-01 00:00:00
abstract::Anterior cruciate ligament (ACL) injuries are a growing cause of concern, as these injuries can have serious consequences for the athlete with a greatly increased risk of early osteoarthrosis. Using specific training programmes, it may be possible to reduce the incidence of knee and ankle injuries. However, it is not ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2005.018341
更新日期:2005-06-01 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::SARS-CoV-2 is the causative virus responsible for the COVID-19 pandemic. This pandemic has necessitated that all professional and elite sport is either suspended, postponed or cancelled altogether to minimise the risk of viral spread. As infection rates drop and quarantine restrictions are lifted, the question how ath...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2020-102710
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:To investigate the validity and reliability of surface electromyography (EMG) as a new non-invasive determinant of the metabolic response to incremental exercise in elite cyclists. The relation between EMG activity and other more conventional methods for analysing the aerobic-anaerobic transition such as blo...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.33.3.178
更新日期:1999-06-01 00:00:00
abstract:OBJECTIVES:Physical inactivity has been associated with significant increases in disease morbidity and mortality. This study assessed the association between physical activity and (1) health resource use and (2) health resource use costs. DESIGN AND PARTICIPANTS:The responses from 24 281 respondents >65 years to the C...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.057216
更新日期:2010-09-01 00:00:00
abstract:AIM:To assess the progression of bronchial reactivity (BR) and incidence of bronchial hyperreactivity (BH), exercise-induced bronchoconstriction (EIB) and asthma in triathletes over 2 years. METHODS:Subjects were seven athletes from the Swiss national triathlon team (mean (SD) age 24.3 (4.8) years), who initially were...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.030569
更新日期:2007-08-01 00:00:00
abstract::The purpose of this study was to formulate a simplistic method of assessing human structural dysplasia and to validate a classification system that would objectively categorize the type and extent of such dysplasia through the use of indices. Anthropometric measurements were taken from a sample of 222 male college stu...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.18.1.22
更新日期:1984-03-01 00:00:00
abstract::A study was undertaken to examine the type, location, incidence and mechanism of injury sustained by amateur parachutists in Denmark during a five-year-period. A total of 110,000 parachute jumps resulted in six (0.005%) fatalities and 155 (0.14%) cases, requiring medical treatment. The latter group sustained 176 injur...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.21.1.13
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:As one of the purposes of anterior cruciate ligament reconstruction (ACLR) is to return athletes to their preinjury activity level, it is critical to understand variables influencing return to sport. Associations between return to sport and variables representing knee impairment, function and psychological s...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2012-091786
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVES:To quantify age, sex, sport and training type-specific effects of resistance training on physical performance, and to characterise dose-response relationships of resistance training parameters that could maximise gains in physical performance in youth athletes. DESIGN:Systematic review and meta-analysis of ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2015-095497
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:Professional rugby players utilise various methods of head protection to prevent against the development of a pinna haematoma. This study tests the hypothesis that these measures, whilst preventing injury, decrease the wearers' hearing threshold and therefore their performance. DESIGN AND PARTICIPANTS:Eight ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.043422
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVES:To describe new WHO 2020 guidelines on physical activity and sedentary behaviour. METHODS:The guidelines were developed in accordance with WHO protocols. An expert Guideline Development Group reviewed evidence to assess associations between physical activity and sedentary behaviour for an agreed set of heal...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2020-102955
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Groin pain in athletes occurs frequently and can be difficult to treat, which may partly be due to the lack of agreement on diagnostic terminology. OBJECTIVE:To perform a short Delphi survey on terminology agreement for groin pain in athletes by a group of experts. METHODS:A selected number of experts were...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-094807
更新日期:2015-06-01 00:00:00
abstract::The purpose of this study was to determine the relationship between non-invasive laboratory measures of 'muscle power' and swim performance over sprint (50 m) and middle-distance (400 m) events. Twenty-two swimmers performed an upper and lower body Wingate Anaerobic Test (WAT) and a maximal sustained power output test...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.26.3.151
更新日期:1992-09-01 00:00:00
abstract:BACKGROUND/AIM:Dupuytren disease is a fibroproliferative hand condition. The role of exposure to vibration as a risk factor has been studied with contradictory results. Since field hockey is expected to be a strong source of hand-arm vibration, we hypothesised that long-term exposure to field hockey is associated with ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-096236
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVE:To compare estimated maximal oxygen uptake (VO2max) in Tanzanian and Norwegian children, by using the same bicycle protocol in both samples. METHODS:Maximal oxygen uptake was estimated from an indirect maximal watt cycle ergometer test in 156 rural boys and girls in Tanzania. Similarly aged urban Norwegian b...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2005.020040
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Reduced flexibility has been documented in athletes with lower limb injury, however, stretching has limited evidence of effectiveness in preventing injury or reducing the risk of recurrence. In contrast, it has been proposed that eccentric training can improve strength and reduce the risk of injury, and faci...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2011-090835
更新日期:2012-09-01 00:00:00
abstract::Acclimatisation to environmental hypoxia initiates a series of metabolic and musculocardio-respiratory adaptations that influence oxygen transport and utilisation, or better still, being born and raised at altitude, is necessary to achieve optimal physical performance at altitude, scientific evidence to support the po...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.31.3.183
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVES:To gain more insight into the mechanisms that underlie the development of interval endurance capacity in talented youth field hockey players in the 12-19 age band. METHODS:A total of 377 measurements were taken over three years. A longitudinal model for interval endurance capacity was developed using the mu...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.023044
更新日期:2006-04-01 00:00:00
abstract::The recovery pulse and respiration were analysed to determine the level of physical fitness among the physical education and medical students of Banaras Hindu University. The analysis of the data suggested that physical fitness as measured by recovery rate was better in physical education students than in medical stud...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.12.2.93
更新日期:1978-06-01 00:00:00
abstract::The rehabilitation of the knee with a deficient anterior cruciate ligament (ACL) always presents a great challenge. Isokinetic assessment allows muscle performance to be quantified. The antishear device, introduced by Johnson, has the distinct advantage of minimizing the anterior translation force during isokinetic ex...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bjsm.29.3.171
更新日期:1995-09-01 00:00:00
abstract::The purpose of this investigation was to compare the effectiveness of using ratings of perceived exertion (RPE) with heart rate in the monitoring of exercise intensity during aerobic dance instruction. Thirty-eight students who enrolled in aerobic dance classes used heart rate to monitor exercise intensity while 38 ad...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.26.2.132
更新日期:1992-06-01 00:00:00
abstract:BACKGROUND:Athletic groin pain (AGP) is an encompassing term for the multitude of chronic conditions presenting as pain in the inguinal region. The purpose of this review was to compare the return to play rates (RTPrate) and return to play times (RTPtime) between surgical and rehabilitation interventions in the treatme...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2014-093715
更新日期:2015-11-01 00:00:00