Abstract:
:Three tests were conducted to assess the effectiveness of three different intensities of exercise both in reducing blood lactic acid (LA) levels and in influencing subjects' heart rate (HR), following a 2000 m race in a rowing boat. In the first and second tests these variables were investigated during a 13 min recovery exercise at 60% and 40% of the preceding maximum rowing speed respectively. In the third test the subjects had a resting recovery. The results include a significant increase (P less than 0.001) in the rate of lactate removal following the 40% recovery compared with the 60% and resting recoveries. The HRs were significantly lower during the last minute of resting recovery compared with 40% and 60% recoveries (P less than 0.001). The same was true when 40% recovery was compared with 60% recovery (P less than 0.001). The present data suggest firstly that 40% of the maximum rowing speed is an appropriate pace for effective LA removal and secondly that, at least for trained rowers, 86% of their maximum HR can be taken as an indication of work of an intensity at or above anaerobic threshold.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Koutedakis Y,Sharp NCdoi
10.1136/bjsm.19.4.199subject
Has Abstractpub_date
1985-12-01 00:00:00pages
199-202issue
4eissn
0306-3674issn
1473-0480journal_volume
19pub_type
杂志文章abstract:OBJECTIVE:Glomerular filtration rate (GFR) is part of routine medical practice for clinical assessment of kidney function in health and disease conditions, and is determined by measuring the clearance of creatinine (Cl-Crn) or estimated (eGFR) from equations using serum creatinine (Crn) or cystatin C (Cyst C). Crn and ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-090976
更新日期:2013-12-01 00:00:00
abstract:OBJECTIVES:To study factors associated with passive hip rotation range of motion (ROM) in former elite male athletes. METHODS:Athletes were interviewed about hip pain, disability, lifetime occupational loading, and athletic training. The passive hip rotation was measured with a Myrin inclinometer in 117 former elite m...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.34.1.44
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:There is a considerable amount of scientific literature on football, but few studies have focused on referees, despite their key role in this sport. Existing studies focus on the physiological demands and training of referees. PURPOSE:To analyse injuries and musculoskeletal complaints in referees and assist...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2008.048314
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Very little data have been published on medical imaging services at disability games. 7.9 million euros (£6.6 million, US$11 million) were invested in setting up radiology facilities within purpose built polyclinics at the London 2012 Olympic and Paralympic games. This paper details imaging services at the 2...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-093386
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:To examine whether acute glucocorticoid (GC) intake alters performance and selected hormonal and metabolic variables during submaximal exercise. METHODS:In total, 14 recreational male athletes completed two cycling trials at 70-75% maximum O(2) uptake starting 3 h after an ingestion of either a lactose place...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2007.039040
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:A suboptimal haematological status has often been recorded in athletes involved in intensive physical activity. There have even been reports of "sports anaemia" associated with intensive physical exercise. However, studies on the effect of different types of exercise practiced over a long period of time on t...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.34.3.200
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVE:To evaluate the effect of strenuous exercise on bone metabolism and related hormones in elderly subjects. METHODS:Twenty one active elderly subjects (11 men and 10 women; mean age 73.3 years) showing a mean theoretical Vo2max of 151.4% participated. Concentrations of plasma ionised calcium (iCa), serum intac...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2004.013151
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:The highest velocity that a runner can sustain during middle distance races is defined by the intersection of the runner's individual velocity-time curve and the distance-time curve. The velocity-time curve is presumably fixed at the onset of a race; however, whereas the race distance is ostensibly fixed, th...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.36.2.102
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:To estimate the overall incidence of acute and overuse volleyball injuries, and to describe factors associated with ankle sprains. METHODS:486 players from the second and third Dutch national volleyball divisions participated in the study and were followed prospectively during a whole season. Three measureme...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2003.005785
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:To determine the views of retired players about the provision of support services in English professional soccer before and after retirement and to assess the impact of career ending injury on these views. METHOD:An anonymous self administered questionnaire was distributed to 500 former players registered wi...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.36.1.33
更新日期:2002-02-01 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:AIMS:To prospectively follow a cohort of elite young male professional soccer players with sequential symptom questionnaires and imaging of the anterior pelvis to determine the prevalence and severity of imaging findings. METHODS:34 male athletes (mean age 16.5 years) underwent clinical examination, history/symptom qu...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2013-092932
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVES:In this study, serum levels of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) between patients with a history of Achilles tendon rupture and blood donor controls were compared, and their relation to mechanical properties of the tendons during healing were studied. METHO...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.049411
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Some snowboarders listen to music on a personal music player and the objective was to determine if listening to music was associated with injury in a terrain park. METHODS:A case-control study was conducted at a terrain park in Alberta, Canada during the 2008-2009 and 2009-2010 winter seasons. Cases were sn...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2014-093487
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:To evaluate the differences in hip external rotation (ER) strength and inner, outer, and total hip ER range of motion (ROM) between dancers and non-dancers and between left and right sides in each group. METHODS:Seventy one subjects (34 dancers and 37 non-dancers) volunteered for this study. The strength (t...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2003.010827
更新日期:2004-12-01 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:BACKGROUND:In professional soccer, a significant amount of training time is used to improve players' aerobic capacity. However, it is not known whether soccer specific training fulfils the criterion of effective endurance training to improve maximal oxygen uptake, namely an exercise intensity of 90-95% of maximal heart...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.36.3.218
更新日期:2002-06-01 00:00:00
abstract:OBJECTIVES:To identify physical activity that is beneficial for the maintenance of bone strength with increasing age by examining the relation between bone mineral density (BMD) and chronic endurance training in men. BMD at the proximal femur, its subregions, and the lumbar spine, and serum testosterone were compared b...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.34.4.273
更新日期:2000-08-01 00:00:00
abstract::This study was designed to examine the effect of exercise intensity on the magnitude and duration of excess postexercise oxygen consumption (EPOC) in women. On separate days and in a counterbalanced order, seven moderately active young adult women performed a 850 kJ cycle ergometer exercise at an intensity of 40 or 60...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.25.1.38
更新日期:1991-03-01 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::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::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
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:BACKGROUND:It is unclear whether world class endurance athletes, in contrast with less well trained subjects, increase their haemoglobin mass on a regimen of living high and training low (LHTL). OBJECTIVE:To assess whether haemoglobin mass increases in world class athletes on LHTL and whether this increase is associat...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.019729
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND/AIM:The Achilles tendon is a tissue that responds to mechanical loads at a molecular and cellular level. In vitro and in vivo studies have shown that the expression of anabolic and/or catabolic proteins can change within hours of loading and return to baseline levels within 72 h. These biochemical changes ha...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsports-2013-092713
更新日期:2015-02-01 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:OBJECTIVES:To compare new versus recurrent concussions with respect to constellation of symptoms, symptom severity, symptom resolution; evaluate potential subset differences with respect to gender and sport; and to compare mechanisms and activities associated with new versus recurrent concussions. METHODS:Sports-relat...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2011-090115
更新日期:2012-06-01 00:00:00
abstract::Local injections of corticosteroids are frequently employed in the management of soft-tissue injuries. Side effects and contraindications of this treatment are discussed with reference to relevant literature. Indications for steroid therapy are described. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.15.1.71
更新日期:1981-03-01 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:OBJECTIVES:To study the long term effect of tibial shaft fractures treated by immobilisation in a long leg cast on the calf muscle bulk. METHODS:Computed tomography scans were performed at fixed points on the lower legs of 23 non-professional athletes who sustained closed tibial fractures 16 years previously. Length o...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.020743
更新日期:2006-06-01 00:00:00