Abstract:
OBJECTIVE:To investigate the effect of varying interdental bite platform thickness of the scuba mouthpiece on airway efficiency. METHODS:10 male divers had their mean peak flow measured for free breathing, maximum flow with diving mouthpiece, teeth in occlusion, and for five experimental mouthpieces with different thickness of interdental bite platform (1 mm, 2 mm, 3 mm, 4 mm, and 5 mm). RESULTS:The connecting airway between the demand valve and mouthpiece was found to be a major limiting factor in airway efficiency. An interdental bite platform of 4 mm resulted in the greatest air flow with a further increase in thickness resulting in air flow restriction. CONCLUSIONS:The use of an interdental bite platform of 4 mm placed between the premolar and molar teeth ensures the greatest airway efficiency and also results in a design which provides the least temporomandibular joint discomfort for the diver.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Hobson RSdoi
10.1136/bjsm.30.2.145subject
Has Abstractpub_date
1996-06-01 00:00:00pages
145-7issue
2eissn
0306-3674issn
1473-0480journal_volume
30pub_type
杂志文章abstract:OBJECTIVE:Regular physical activity is associated with a reduction of cardiovascular morbidity and mortality; however, evidence of unfortunate cardiovascular events accompanying elite sport involvement continues to accumulate. To date, no information is available on possible peculiarities of the cardiovascular risk pro...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.045021
更新日期:2008-11-01 00:00:00
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::This paper describes an outbreak of Salmonella enteriditis occurring at the Junior World Rowing Championships at Poznan, Poland, in August 1995 which was to have a significant effect on the performance of several of the largest national teams. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.30.4.347
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND:In competitive alpine skiing, there is a controversy regarding the sex-related risk of injury. OBJECTIVE:To compare the risk of injury in female versus male World Cup (WC) alpine skiers. METHODS:Injuries were recorded through the International Ski Federation Injury Surveillance System for six consecutive w...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092206
更新日期:2014-01-01 00:00:00
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::Ankle sprain is a common sports injury and is often regarded as trivial by athletes and coaches. This epidemiological study was conducted among three categories of Hong Kong Chinese athletes: national teams, competitive athletes and recreational athletes. This study shows that as much as 73% of all athletes had recurr...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.2.112
更新日期:1994-06-01 00:00:00
abstract::After an interval of ten years, physically active and inactive male university teachers were re-examined across four measures; predicted maximum oxygen uptake, percentage body fat, personality and attitudes towards physical activity. Both groups showed a decrease in predicted oxygen uptake and an increase in body fat ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.20.4.174
更新日期:1986-12-01 00:00:00
abstract:BACKGROUND:Joint moments computed using inverse dynamic techniques are important estimators of net joint loads. Joints moments computed from marker position and ground reaction force data filtered using different cut-off frequencies may capture changes in moment magnitudes at a single joint that exceed normal physiolog...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-091398
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE AND METHOD:To outline the direct and indirect approaches in the fight against blood doping in sports, the different strategies that have been used and are currently being used to fight efficiently against blood doping are presented and discussed. RESULTS AND CONCLUSIONS:The paper outlines the different appro...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.027532
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:To compare the prevalence of self reported, physician diagnosed osteoarthritis (OA) of the hip in ex-professional footballers with that in age matched controls in the general public. METHOD:A questionnaire was sent to the 92 football league and premiership managers to assess the prevalence of OA of various j...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.37.1.80
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVE:The influence of an exercise programme performed by healthy pregnant women on maternal glucose tolerance was studied. STUDY DESIGN:A physical activity (PA, land/aquatic activities) programme during the entire pregnancy (three sessions per week) was conducted by a qualified instructor. 83 healthy pregnant wom...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsports-2011-090009
更新日期:2012-07-01 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::Discussion related to hernias in sport usually involves the diagnosis and treatment of chronic musculotendinous groin disruption. A case of acute trauma in an incarcerated inguinal hernia, occurring in a rugby union player during a lineout, is presented. The injury arose as a result of a change in the laws of the game...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.33.1.52
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:Extremely low weight and rapid changes in weight and body composition have become major concerns in many sports, but sufficiently accurate field methods for body composition assessment in athletes are missing. This study aimed to explore the use of ultrasound methods for assessment of body fat content in ath...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092232
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:To investigate the relationships between the time spent in specific intensities of activity and inactivity, cardiorespiratory fitness and body composition in children. METHODS:A cross-sectional study was conducted in a random sample of schools. Height, weight and waist circumference were measured in 224 chil...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2006.032045
更新日期:2007-05-01 00:00:00
abstract::Over 100 000 solid organ transplants are performed worldwide each year and this has a significant impact on physical function and quality of life. However, the capacity for exercise in solid-organ recipients is reduced. Regular physical activity improves most of the indices of fitness in these patients but, with few e...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2014-093583
更新日期:2015-01-01 00:00:00
abstract::In this study 180 male soccer players entered into a prospective study of injuries in 1980. They were examined again in 1988. The aim of the present study was to evaluate the course of events during their active period. The study was carried out using a questionnaire. The importance of major injuries was evaluated. Ho...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.24.2.117
更新日期:1990-06-01 00:00:00
abstract:OBJECTIVE:Despite the rise in specialist clinical services for the management of sports and active recreation injury, many patients attend hospital emergency departments for treatment. The purpose of this study was to describe sports injury cases presented to selected hospital emergency departments around Australia for...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.32.3.220
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:Previous meta-analyses have found that exercise prevents falls in older people. This study aimed to test whether this effect is still present when new trials are added, and it explores whether characteristics of the trial design, sample or intervention are associated with greater fall prevention effects. DES...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2016-096547
更新日期:2017-12-01 00:00:00
abstract::Sedentary time is a modifiable determinant of poor health, and in older adults, reducing sedentary time may be an important first step in adopting and maintaining a more active lifestyle. The primary purpose of this consensus statement is to provide an integrated perspective on current knowledge and expert opinion per...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-097209
更新日期:2017-11-01 00:00:00
abstract::This systematic review set out to identify randomised controlled trials and controlled intervention studies that evaluated the effectiveness of preventive strategies in adolescent sport and to draw conclusions on the strength of the evidence. A literature search in seven databases (Medline, SportDiscus, EMBASE, CINAHL...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsm.2007.035691
更新日期:2007-10-01 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:OBJECTIVES:The menstrual cycle can affect sports participation and exercise performance. There are very few data on specific menstrual cycle symptoms (symptoms during various phases of the cycle, not only during menstruation) experienced by exercising women. We aimed to characterise the most common symptoms, as well as...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2020-102792
更新日期:2020-11-16 00:00:00
abstract:BACKGROUND:Cell adhesion molecules are proteins expressed on the surface of a variety of cells and mediate the leucocyte response to inflammation. Some of these molecules are released to the plasma as soluble forms, whose presence indicates the degree of vascular endothelial activation or dysfunction. Increased concent...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.031047
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Low physical activity (PA) levels which increase the risk of chronic disease are reported by two-thirds of the general UK population. Promotion of PA by primary healthcare professionals is advocated but more evidence is needed regarding effective ways of integrating this within everyday practice. This study ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bjsports-2012-091581
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVE:To assess the incidence, severity and nature of injuries, to determine risk factors for injury and to identify potential injury prevention strategies in men's international Rugby-7s tournaments. DESIGN:A prospective cohort study. PARTICIPANTS:Players from core teams competing in matches at 6 Sevens World Se...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-096043
更新日期:2016-06-01 00:00:00
abstract::Osteoarthritis (OA) is a common degenerative disease of joints. The major clinical features are pain and stiffness, leading to a decline in physical function, which may ultimately require joint replacement surgery. As no cure exists, current medical intervention focuses on symptomatic relief. Moreover, as no cure is i...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2004.011841
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the incidence of hypermobility in young female netball players and to determine the relation between hypermobility, previous injuries sustained in netball or other sports, and the use of protective equipment. METHODS:Under 16 year old female netball players from a local suburban netball associati...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2004.015271
更新日期:2005-09-01 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:OBJECTIVE:To evaluate the efficacy of ultrasound guided dry needling and autologous blood injection for the treatment of patellar tendinosis. DESIGN:Prospective cohort study. SETTING:Hospital/clinic based. PATIENTS:47 knees in 44 patients (40 men, 7 women, mean age 34.5 years, age range 17 to 54 years) with refracto...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.034686
更新日期:2007-08-01 00:00:00