Abstract:
BACKGROUND:In adults, exercise is a powerful and natural stimulator of immune cells and adhesion molecules. Far less is known about exercise responses during childhood and adolescence and whether or not exercise in "real life" activities of healthy adolescents influences immune responses. OBJECTIVE:To determine if strenuous exercise leads to significant changes in leucocyte number and adhesion molecule expression in adolescent boys. METHODS:Eleven healthy, high school boys, aged 14-18.5 years, performed a single, typical, 1.5 hour wrestling practice session. Blood was sampled before and after the session. Flow cytometry was used to evaluate changes in immune responses. RESULTS:The exercise led to significant (p<0.05) and robust increases in granulocytes, monocytes, and all lymphocyte subpopulations. The most significant changes were observed for natural killer cells (p<0.0005). The number of T cytotoxic and T helper cells expressing CD62L increased significantly (p<0.002 and p<0.0005 respectively), as did the number of T cytotoxic and T helper cells not expressing CD62L (p<0.003 and p<0.009 respectively). The density of CD62L on lymphocytes decreased significantly with exercise (p<0.0005), whereas CD11a (p<0.01) and CD54 (p<0.01) increased. CONCLUSIONS:The data show that an intense wrestling bout in adolescent boys leads to profound stimulation of the immune system. The role of these common changes in overall immune status and the development of the immune and haemopoietic systems has yet to be determined.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Nemet D,Mills PJ,Cooper DMdoi
10.1136/bjsm.2002.002576keywords:
subject
Has Abstractpub_date
2004-04-01 00:00:00pages
154-8issue
2eissn
0306-3674issn
1473-0480journal_volume
38pub_type
杂志文章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/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::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::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:BACKGROUND:The varying methods of cricket injury surveillance have made direct comparison of published studies in this field impossible. METHODS:A consensus regarding definitions and methods to calculate injury rates in cricket was sought between researchers in this field. This was arrived at through a variety of face...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2004.012732
更新日期:2005-04-01 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: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 Injury Prevention Research Unit was established in 1990 to reduce the incidence, severity and consequences of injury. Research into sport and recreational injury is one of five major areas of research being undertaken. National data sources have been used to estimate the overall size of the problem and to describe...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.4.221
更新日期:1994-12-01 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: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::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 endura...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2011-090822
更新日期:2012-05-01 00:00:00
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 thi...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.30.2.145
更新日期:1996-06-01 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:OBJECTIVE:To use the meta-analytical procedures to determine the magnitude of the effect of exercise-induced dehydration (EID) upon time-trial (TT) exercise performance. METHODS:Studies were located via database searches and cross-referencing. TT performance outcomes were converted to mean percentage changes in power ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsm.2010.077966
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVES:(1) Describe the evolution of guideline-endorsed red flags for fracture in patients presenting with low back pain; (2) evaluate agreement between guidelines; and (3) evaluate the extent to which recommendations are accompanied by information on diagnostic accuracy of endorsed red flags. DESIGN:Systematic re...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2018-099525
更新日期:2019-05-01 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::Twelve female age-group swimmers and twelve female controls, aged ten to sixteen, performed a pre-training discontinuous maximal cycle ergometer test to determine the capacities of their anaerobic (alactacid and lactacid) and aerobic energy systems. Heart rate and oxygen uptake were determined during rest, exercise, a...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.12.1.14
更新日期:1978-03-01 00:00:00
abstract::An élite athlete engaged in a longitudinal programme of physiological assessment suffered a loss of performance that was later ascribed to an asymptomatic viral illness. In this 15-month, single subject, repeated measures study it was possible to demonstrate a severe decrease of exercise performance following viral il...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.27.3.157
更新日期:1993-09-01 00:00:00
abstract:BACKGROUND/AIM:Consumer-based physical activity (PA) monitors have become popular tools to track PA behaviours. Currently, little is known about the validity of the measurements provided by consumer monitors. We aimed to compare measures of steps, energy expenditure (EE) and active minutes of four consumer monitors wit...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-096990
更新日期:2018-07-01 00:00:00
abstract::We report two cases of acute haematogenous osteomyelitis in the anterior superior iliac spine (ASIS) in adolescent goalkeepers following trauma of the iliac crest apophysis. Both patients complained of pain over their right ASIS and were pyrexial. They were given antibiotics and were discharged from follow up without ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.025031
更新日期:2006-09-01 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::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::Anabolic androgenic steroids (AAS) are used illicitly at high doses by bodybuilders. The misuse of these drugs is associated with serious adverse effects to the liver, including cellular adenomas and adenocarcinomas. We report two very different cases of adult male bodybuilders who developed hepatocellular adenomas fo...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2004.013599
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVE:To quantify and describe medically treated sport and active recreation injuries in a defined region of the Latrobe Valley from 7 November 1994 to 6 November 1995. METHOD:A geographic target area was defined, restricted to the six postcodes that fell wholly within the catchment area of the Latrobe Regional Ho...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.37.5.405
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Studies failing to show a negative effect of rapid weight loss (RWL) on performance have been conducted in athletes who have been cycling weight for years. It has been suggested that chronic weight cycling could lead combat athletes to become resistant to the stresses associated with weight loss. To investig...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092689
更新日期:2013-12-01 00:00:00
abstract:OBJECTIVES:The cellular basis of painful tendon overuse pathology (tendinosis) is poorly understood. It has been suggested that because of the close anatomical associations between mast cells and vessels in connective tissues, mast cells may mediate the development of tendon hypervascularity or oedema. OBJECTIVES:To e...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.040212
更新日期:2008-09-01 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::This paper focuses on biceps injuries in shoulder surgery. This topic is currently of great interest, and there has been much discussion about diagnosis, treatment and prevention. Biceps tendon pathology exists in many forms and is frequently associated with other shoulder disorders. These facts must be taken into con...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2009.064139
更新日期:2010-04-01 00:00:00
abstract::This article systematically reviews the available literature to improve our understanding of the physiological basis for orthoses under the kinematic, shock attenuation and neuromotor control paradigms. The propositions made under these three paradigms have not been systematically reviewed collectively, and as such, t...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2009.066977
更新日期:2010-11-01 00:00:00
abstract:OBJECTIVE:To determine whether antioxidant supplements and antioxidant-enriched foods can prevent or reduce delayed-onset muscle soreness after exercise. METHODS:We searched the Cochrane Bone, Joint and Muscle Trauma Group Specialised Register, the Cochrane Central Register of Controlled Trials, MEDLINE, Embase, SPORT...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2018-099599
更新日期:2020-01-01 00:00:00