Abstract:
:Athletes such as skaters and skiers inhale large volumes of cold air during exercise and shift from nasal to mouth breathing. Endurance athletes, like cross-country skiers, perform at 80% or more of their maximal oxygen consumption and have minute ventilations in excess of 100 l/min. Cold air is always dry, and endurance exercise results in loss of water and heat from the lower respiratory tract. In addition, athletes can be exposed to indoor and outdoor pollutants during the competitive season and during all-year training. Hyperpnoea with cold dry air represents a significant environmental stress to the airways. Winter athletes have a high prevalence of respiratory symptoms and airway hyper-responsiveness to methacholine and hyperpnoea. The acute effects of exercise in cold air are neutrophil influx as demonstrated in lavage fluid and airway epithelial damage as demonstrated by bronchoscopy. Upregulation of pro-inflammatory cytokines has been observed in horses. Chronic endurance training damages the epithelium of the small airways in mice. Airway inflammation has been observed on bronchoscopy of cross-country skiers and in dogs after a 1100-mile endurance race in Alaska. Neutrophilic and lymphocytic inflammation with remodelling is present in bronchial biopsies from skiers. Repeated peripheral airway hyperpnoea with dry air causes inflammation and remodelling in dogs. As it is currently unknown if these airway changes are reversible upon cessation of exposure, preventive measures to diminish exposure of the lower airways to cold air should be instituted by all winter sports athletes.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Sue-Chu Mdoi
10.1136/bjsports-2011-090822subject
Has Abstractpub_date
2012-05-01 00:00:00pages
397-401issue
6eissn
0306-3674issn
1473-0480pii
bjsports-2011-090822journal_volume
46pub_type
杂志文章abstract:OBJECTIVE:Exercise training has been shown to have beneficial effects on liver function in adults overweight or with fatty liver disease. To establish which exercise programme characteristics were likely to elicit optimal improvements. DESIGN:Systematic review and meta-analysis of randomised, controlled trials. DATA ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2016-096197
更新日期:2018-07-01 00:00:00
abstract::The exon-1 of the androgen receptor (AR) gene contains two repeat length polymorphisms which modify either the amount of AR protein inside the cell (GGN(n), polyglycine) or its transcriptional activity (CAG(n), polyglutamine). Shorter CAG and/or GGN repeats provide stronger androgen signalling and vice versa. To test ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2009.060285
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVES:Randomised controlled trials (RCTs) can evaluate how well a particular exercise programme reduces cancer treatment-related side effects. Adequate design and reporting of the exercise prescription employed in RCTs is central to interpreting study findings and translating effective interventions into practice....
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2012-091732
更新日期:2014-06-01 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::Intravascular haemolysis has been found to result from prolonged endurance competition, rigorous military training and participation in impact sports. Haematological research involving the recreational runner is sparse. Recreational runners frequently vary their training to avoid monotony and improve endurance capacit...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.25.4.183
更新日期:1991-12-01 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::Nine healthy male subjects differing in their training status (VO2 max 54 +/- 7 ml.min-1.kg-1, mean +/- SD; 43-64 ml.min-1 kg-1, range) exercised on two occasions separated by one week. On each occasion, having fasted overnight, subjects exercised for 1 h on an electrically braked cycle ergometer at a workload equival...
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.23.2.109
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVE:To monitor the seasonal body composition alterations in 18 lightweight rowers (six females, 12 males) across a rowing season incorporating preseason, early competition, competition, and postseason. METHODS:Subject age was 23.1 (SD 4.5) years, height 170.8 (5.6) cm (female, 23.5 (3.5) years, 180.5 (2.7) cm (m...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.30.4.301
更新日期:1996-12-01 00:00:00
abstract:OBJECTIVE:We compared long-term follow-up from surgical versus non-surgical treatment of ACL rupture regarding radiographic knee osteoarthritis (OA), secondary surgery, laxity and patient-reported outcome measures (PROMs). DESIGN:Systematic review and meta-analysis. DATA SOURCES:Embase, MEDLINE, CINAHL and the Cochra...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析
doi:10.1136/bjsports-2019-100765
更新日期:2020-05-01 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::One-third of orbital blowout fractures are sustained during sport. Soccer is most commonly involved. Though visual acuity recovery is usually complete, permanent loss of binocular visual field is almost universal. Typically high-energy blows by opponent's finger, fist, elbow, knee or boot are responsible. Injuries to ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.4.272
更新日期:1994-12-01 00:00:00
abstract::Regular physical exercise reduces cardiovascular morbidity and mortality. A small proportion of athletes, however, are at increased risk of exercise-related sudden cardiac death (SCD) as a result of quiescent cardiac anomalies. The preventable nature of such deaths has prompted the medical and sporting governing bodie...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2008.054874
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Chronic painful insertional Achilles tendinopathy is seen in both physically active and non-active individuals. Painful eccentric training, where the patients load the Achilles tendon into full dorsiflexion, has shown good results in patients with mid-portion Achilles tendinosis. However, only 32% of patient...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.039545
更新日期:2008-09-01 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::Observations are presented on the electrocardiogram and plasma catecholamine concentrations of 11 healthy men monitored during two rock climbing ascents. A placebo was administered prior to the first climb and an oral dose of the beta blocking agent oxprenolol ("Trasicor") prior to the second. Mean heart rates were 16...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.12.3.125
更新日期:1978-09-01 00:00:00
abstract:OBJECTIVE:To describe the anthropometric and physical performance characteristics of a sample of senior A club rugby players and to highlight differences between the positional categories of the players within the forwards and backs. METHODS:94 senior A male rugby players were assessed on a number of anthropometric an...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.30.1.53
更新日期:1996-03-01 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:Major head injuries are not uncommon in the Irish national game of hurling. Historically, helmets were not worn. METHODS:We report a multistage campaign to facilitate and encourage the use of appropriate headgear among the estimated 100 000 hurling players in Ireland. This campaign lasted for 27 years betwe...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-092014
更新日期:2014-01-01 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:OBJECTIVE:To observe the differences in performance variables of the sit to stand transfer (as measured on the NeuroCom Balance Master) in a population of senior athletes. METHOD:A convenience sample of 173 subjects aged 50 years and older. Data were obtained from voluntary participation in a health fair offered at th...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.018564
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:An athlete's intention to return to sport following anterior cruciate ligament (ACL) injury is a major indication for surgical intervention. PURPOSE:The purpose of this review was to determine postoperative return-to-sport outcomes after ACL reconstruction surgery. STUDY DESIGN:Meta-analysis and systematic...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsm.2010.076364
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVE:To estimate knee osteoarthritis (OA) risk following anterior cruciate ligament (ACL), meniscus or combined ACL and meniscus injury. DESIGN:Systematic review and meta-analysis. DATA SOURCES:MEDLINE, Embase, SPORTDiscus, CINAHL and Web of Science until November 2018. ELIGIBILITY CRITERIA FOR SELECTING STUDIE...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析
doi:10.1136/bjsports-2018-100022
更新日期:2019-12-01 00:00:00
abstract:AIMS:(1) To investigate whether a daily acute:chronic workload ratio informs injury risk in Australian football players; (2) to identify which combination of workload variable, acute and chronic time window best explains injury likelihood. METHODS:Workload and injury data were collected from 53 athletes over 2 seasons...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-096309
更新日期:2017-08-01 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:OBJECTIVE:To compare the results of hip arthroscopy in patients under the age of 25 with those over 25 years. DESIGN:From March 2006 until May 2010, data were collected on all patients who underwent hip arthroscopy for symptomatic intra-articular hip pathology. The patients were divided into two groups based on age (l...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-091028
更新日期:2013-03-01 00:00:00
abstract::Custom made maxillary mouthguards made from thermoplastic materials using dental impressions give valuable protection to the teeth and jaws of participants in contact sports. A bimaxillary mouthguard has been described which offers enhanced protection, but with considerable increase in cost. This paper describes a mod...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.21.2.27
更新日期:1987-06-01 00:00:00
abstract:OBJECTIVE:To determine the interobserver and intraobserver reliability of the interpretation of MRIs for supraspinatus tendinosis. METHODS:In the interobserver trial, the MRIs of 52 athletes' shoulders were observed by 3 observers on one occasion within a 2-month period. All 52 images were read by the most experienced...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.2006.034421
更新日期:2007-08-01 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:BACKGROUND:Technological limitations associated with oesophageal and rectal temperature probes have previously limited match play observations of body temperature. OBJECTIVE:To investigate the application of an intestinal pill system to measure core temperature during dynamic, field based, soccer matches. METHODS:Cor...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.021980
更新日期:2006-02-01 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