Abstract:
OBJECTIVES:To measure the long term effects of dance training and the contribution of the timing and duration of any menstrual disruption on bone mineral density (BMD). DESIGN:Measurement of BMD in 57 premenopausal, previously professionally dance trained women and the relationship to menstrual and training history. MAIN OUTCOME MEASURES:Bone density measurements at lumbar spine and femoral neck by dual energy x-ray absorptiometry. RESULTS:The average Z score for BMD at the lumbar spine in the amenorrhoeic dancers was significantly below that for the normal population. The average Z score for BMD at the femoral neck in the eumenorrhoeic dancers was significantly above that for the normal population. There was a significant difference between the average Z score for BMD at both the lumbar spine and femoral neck between the amenorrhoeic and eumenorrhoeic dancers. Significant negative relationships were found between BMD at the lumbar spine and (1) age at menarche, (2) duration of amenorrhoea, (3) BMD at the femoral neck, and (4) the variable of ideal minus lowest weight, which was independent of amenorrhoea. No significant relationships were found between duration of oral contraceptive pill usage and BMD at either the lumbar spine or the femoral neck in eumenorrhoeic or amenorrhoeic dancers. In order to quantify the effect of a combination of these significant factors, a model of BMD was constructed using multiple regression incorporating the variables duration of amenorrhoea, age at menarche, and ideal minus lowest body weight. In this model R2 was 33.6%, in other words 33.6% of the total variation in the Z score for BMD at the lumbar spine could be accounted for by these factors. CONCLUSION:Professional female dancers with a history of delayed menarche and amenorrhoea have been identified as another group of premenopausal women potentially at risk of developing osteoporosis because of a decrease in BMD at the lumbar spine. The femoral neck in dancers with a history of amenorrhoea was partially protected from loss of BMD by virtue of being the major weight bearing site in previous dance training, and in eumenorrhoeic dancers BMD was significantly increased at this site.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Keay N,Fogelman I,Blake Gdoi
10.1136/bjsm.31.2.143subject
Has Abstractpub_date
1997-06-01 00:00:00pages
143-7issue
2eissn
0306-3674issn
1473-0480journal_volume
31pub_type
杂志文章abstract:AIMS:(1) To assess the 1-year and 6-year courses of non-traumatic knee symptoms in adolescents and young adults presenting in general practice. (2) To identify prognostic factors for persistent knee symptoms at 1-year follow-up. METHODS:Adolescents and young adults (12-35 years; n=172) with non-traumatic knee symptoms...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2014-093557
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVES:The authors studied the association of leisure-time physical activity (LTPA) with clustered and individual metabolic risk factors in adolescents taking into account diet and pubertal status. The authors also studied whether screen time was associated with clustered risk. METHODS:Self-reported LTPA and scree...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2010.073239
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Little information is available on the effect of strength training on vascular function, particularly in older people. OBJECTIVE:To determine the effect of resistance training on arterial stiffness and endothelial function in older adults. METHOD:Eleven healthy men (mean (SEM) age 64 (1) years) performed 1...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.029538
更新日期:2006-10-01 00:00:00
abstract::A 14 month retrospective study was undertaken to determine the cost implications of the opening of a roller skating rink to the local hospital accident and emergency department (A and E). A total of 398 patients attended following injury at the roller skating rink, of whom 384 were included in the study. The estimated...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.24.4.240
更新日期:1990-12-01 00:00:00
abstract:OBJECTIVE:To find the individual intensity for aerobic endurance training, the lactate minimum test (LMT) seems to be a promising method. LMTs described in the literature consist of speed or work rate-based protocols, but for training prescription in daily practice mostly heart rate is used. The aim of the present stud...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.032714
更新日期:2009-06-01 00:00:00
abstract::Cardiomyopathies are a heterogeneous group of heart muscle diseases and collectively are the leading cause of sudden cardiac death (SCD) in young athletes. The 12-lead ECG is utilised as both a screening and diagnostic tool for detecting conditions associated with SCD. Fundamental to the appropriate evaluation of athl...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2012-092069
更新日期:2013-02-01 00:00:00
abstract::There are many treatment modalities for ankle rehabilitation. These are reviewed, and the most effective training programme for rapid restoration of ankle movement, strength, endurance, and proprioception is selected. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.37.4.291
更新日期:2003-08-01 00:00:00
abstract::This study was conducted to compare the effectiveness of the traditional method of ankle bandaging and the new method of ankle taping for judo athletes in Japan, and to introduce a functionally effective taping method for judo players. Four university judo athletes with ankle instability were selected to undertake rad...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.27.2.110
更新日期:1993-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the cost effectiveness of a proprioceptive balance board training programme for the prevention of ankle sprains in volleyball. METHODS:A total of 116 volleyball teams participated in this study which was carried out during the 2001-2002 volleyball season. Teams were randomly allotted to an inter...
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.2003.011031
更新日期:2005-02-01 00:00:00
abstract::This study was carried out to determine the rate and types of injuries experienced by boardsailors. Results derive from: (a) a review of hospital medical records for water sports injuries, and (b) a questionnaire-interview of 73 athletes windsurfing on waters in the Galveston area during a hurricane and in moderate an...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.22.3.95
更新日期:1988-09-01 00:00:00
abstract:BACKGROUND:Physicians are increasingly being called upon to promote physical activity (PA) among patients. However, a paucity of exercise medicine teaching in the UK undergraduate medical curricula prevents students from acquiring the necessary knowledge and skills to do so. To address this issue, King's College London...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092386
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Physical activity has been associated with improved survival, but it is unclear whether this increase in longevity is accompanied by preserved mental and physical functioning, also known as healthy ageing. We designed this study to determine whether physical activity is associated with healthy ageing in late...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092814
更新日期:2014-02-01 00:00:00
abstract::The purpose of this study was to describe the anthropometric and physiological parameters that apply to a USA amateur rugby union club team. Fifteen players who were members of the club's first team were evaluated for body composition, muscular strength, power and endurance, flexibility, anaerobic power, anaerobic cap...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.17.1.16
更新日期:1983-03-01 00:00:00
abstract:BACKGROUND:The relatively young sport of snowboarding exhibits high injury rates. The current efforts to characterise the injury pattern of snowboarders focus largely on the general snowboard population and upper extremity injuries, the most common injury site in snowboarders as a whole. METHODS:In an effort to descri...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2013-093019
更新日期:2014-01-01 00:00:00
abstract::The effect of time of day on all-out swim performances was examined. Fourteen subjects performed maximal front crawl swim tests on separate days over 100 m. and 400 m. at 5 different times of day between 06.30 h. and 22.00 h. Performance showed a significant linear trend with time of day in close though not exact asso...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.17.2.122
更新日期:1983-06-01 00:00:00
abstract::Jogging is a form of physical exercise that has stimulated the imagination of the public as shown by recent appearance of its own journal (Jogging Magazine, Editor J. Bryant). We wish to report the unusual complication of an acute stroke sustained during jogging. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.14.4.229
更新日期:1980-12-01 00:00:00
abstract:OBJECTIVES:To compare the efficacy and safety of topical non-steroidal anti-inflammatory drugs (NSAIDs), including salicylate, for the treatment of osteoarthritis (OA). METHODS:PubMed, Embase, Cochrane Library and Web of Science were searched from 1966 to January 2017. Randomised controlled trials (RCTs) comparing top...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2017-098043
更新日期:2018-05-01 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:STUDY DESIGN:Descriptive study, cross-sectional design. BACKGROUND:Tennis requires repetitive overhead movement patterns that can lead to upper extremity injury. The scapula plays a vital role in injury-free playing. Scapular dysfunction has been associated with shoulder injury in the overhead athlete. OBJECTIVES:The...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2009.070128
更新日期:2010-07-01 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::Acute mood changes occur with various forms of physical activity. Increased levels of endogenous opioids (endorphins) in response to exercise may mediate activity-induced shifts in mood state. Thirteen female and six male aerobics class participants aged 20-46 years received the opiate receptor antagonist naltrexone a...
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.26.2.111
更新日期:1992-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the hormonal response to strenuous endurance exercise performed by elite athletes. METHODS:Nine professional cyclists (mean (SD) age 28 (1) years; mean (SD) VO(2)MAX 75.3 (2.3) ml/kg/min) who participated in a three week tour race (Vuelta a España 1999) were selected as subjects. Morning urinary...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.35.6.424
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:Antidoping and medical care delivery programmes are required at all large international multisport events. OBJECTIVE:To document and critique the novel antidoping and medical care delivery models implemented at the 2nd Summer Youth Olympic Games, Nanjing 2014. METHODS:The International Olympic Committee im...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2014-094424
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVE:To determine the plasma glucose levels in non-diabetic patients with rotator cuff tear. DESIGN:Frequency-matched case-control study. SETTING:University Teaching Hospital. PARTICIPANTS:The study included 194 subjects who were operated on at our institution. Group 1 included 97 consecutive patients (36 men a...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.049320
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:Although physical activity occurs in leisure, transport, occupational and domestic domains of life, the contribution of house and garden work (HGW) to the association between total physical activity and well-being is not clear. The aim was to describe the contribution of HGW to total physical activity (TPA) i...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-091103
更新日期:2014-06-01 00:00:00
abstract:AIM:To describe the epidemiology of National Collegiate Athletic Association (NCAA) men's and women's soccer injuries during the 2009/2010-2014/2015 academic years. METHODS:This descriptive epidemiology study used NCAA Injury Surveillance Program (NCAA-ISP) data during the 2009/2010-2014/2015 academic years, from 44 m...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-095718
更新日期:2017-07-01 00:00:00
abstract::Hypothermia is a serious condition, often with fatal consequences. The physiology and mechanisms of hypothermia in mountainous areas are discussed. It is as important to facilitate heat loss, especially during periods of high exertion, as it is to maintain heat production and preserve insulation. This can be partly ac...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.37.6.548
更新日期:2003-12-01 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
abstract:OBJECTIVES:To compare cardiorespiratory responses between incremental treadmill (non-specific) and field (sport specific) tests in elite squash players. METHODS:Seven elite players (ranked 1 to 25 in their national federation including the World number 1) randomly performed an incremental treadmill test (TT) and a squ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2005.018101
更新日期:2005-12-01 00:00:00
abstract::The second international consensus conference on the scapula was held in Lexington Kentucky. The purpose of the conference was to update, present and discuss the accumulated knowledge regarding scapular involvement in various shoulder injuries and highlight the clinical implications for the evaluation and treatment of...
journal_title:British journal of sports medicine
pub_type: 共识发展会议,杂志文章
doi:10.1136/bjsports-2013-092425
更新日期:2013-09-01 00:00:00