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 study was to investigate the reproducibility of a new heart rate-based LMT protocol. DESIGN:20 subjects each underwent four LMTs on a cycle ergometer. The LMT consisted of a first part (Conconi test) to induce lactate accumulation and a second part (incremental protocol) with stages of 5 min starting beyond the aerobic threshold. During these stages work rate was adjusted to reach predetermined heart rates, which were calculated for every single test from heart rate (HR) at rest and maximum HR. Lactate was measured after each stage to define the lactate minimum (LM) and the corresponding HR. SETTING:Institute of Sports Medicine. PARTICIPANTS:20 healthy and endurance-trained individuals (13 men, seven women). MAIN OUTCOME MEASURES:Reproducibility of heart rate at LM. RESULTS:The reproducibility of heart rate at LM was high (coefficient of variation (CV) = 2.1%). The reproducibility of work rate at LM was good (CV = 6.7%). CV for lactate concentrations at LM was 17.4%. High interindividual differences at LM were found in heart rate (range 149-178 beats/min) and lactate levels (range 1.2-6.8 mmol/l). CONCLUSION:The LMT using a heart rate-based protocol is a reproducible method of assessing HR at an exercise intensity where an equilibrium exists between blood lactate accumulation and elimination.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Strupler M,Mueller G,Perret Cdoi
10.1136/bjsm.2006.032714subject
Has Abstractpub_date
2009-06-01 00:00:00pages
432-6issue
6eissn
0306-3674issn
1473-0480pii
bjsm.2006.032714journal_volume
43pub_type
杂志文章abstract:BACKGROUND:In all studies in which the strength of the neck extensor muscles has been measured, the level of thoracic support has been adjusted differently so direct comparison of the results is not possible. OBJECTIVE:To measure and compare the isometric force and isometric torque of neck extensor muscles at differen...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.040709
更新日期:2008-05-01 00:00:00
abstract::The cases are reported of three off road cyclists with isolated soft tissue injuries to the right lower leg, caused by the chain ring as they struggled to release their feet from clipless pedals. Correct adjustment of the pedals to facilitate quick release of the feet is required to prevent such injuries. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2002.003616
更新日期:2004-06-01 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::The aim was to assess the quality and strength of evidence for the health benefits of specific sport disciplines. Electronic search yielded 2194 records and the selection resulted in 69 eligible studies (47 cross-sectional, 9 cohort, 13 intervention studies). 105 comparisons between participation and non-participation...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2014-093885
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Salbutamol has been shown to mediate anabolic effects after intravenous administration. However, the mechanism responsible for the anabolic actions of salbutamol remains unknown. AIM:To investigate the potential mechanism by which salbutamol mediates anabolic effects in vitro. METHODS:The potential androge...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.035162
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:The ability to predict injury is difficult. Prior injury is the only risk factor that has been reported consistently in multiple research studies. Convenient and easy to perform, physical performance tests (PPTs) have great allure as prognostic factors. METHODS:11 PPTs were issued to 359 participants over t...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-094885
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:The introduction of shoulder pads has coincided with a rise in shoulder impact injuries in the game of rugby. In this study, the effect of shoulder pads on impact force attenuation was quantified. DESIGN:Four different commercially available shoulder pads were tested for material properties. Hard and soft ob...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.047449
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Although athletes with mental retardation (MR) have achieved an important role, literature concerning the evaluation tests in basketball is still poor. OBJECTIVE:To assess basketball ability before and after a 4-month training performed before championship for athletes with MR and to correlate ability varia...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.034918
更新日期:2009-03-01 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:OBJECTIVE:To test the hypothesis that stress reducing techniques such as meditation alter immune responses after strenous physical stress. METHODS:The hypothesis was tested by studying six meditating and six non-meditating male runners in a concurrent, controlled design. After a period of six months with meditation fo...
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.29.4.255
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:To determine physical activity levels during phase IV cardiac rehabilitation in 31 male myocardial infarction patients (median age 62, range 53-77 years). METHODS:Patients recorded daily physical activity over 16 weeks in a diary. Diaries were analysed for total general physical activity (TGPA), leisure time...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2003.010983
更新日期:2005-03-01 00:00:00
abstract::The physiological and therapeutic effects of massage are frequently questioned. This article reviews previous research into the effects of massage on blood flow and composition, oedema, connective tissue, muscle and the nervous system. Although further investigations are clearly required in certain areas, the discussi...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.28.3.153
更新日期:1994-09-01 00:00:00
abstract::As in other endurance sports, the intensity of training sessions and the pace of competition has significantly increased since rugby union became a professional sport. The case history is presented of a professional rugby player who was diagnosed with septicaemia and a lung abscess following an infected wound to the e...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.035071
更新日期:2007-10-01 00:00:00
abstract:OBJECTIVE:When appraising the quality of randomised clinical trial (RCTs) on the merits of exercise therapy, we typically limit our assessment to the quality of the methods. However, heterogeneity across studies can also be caused by differences in the quality of the exercise interventions (ie, 'the potential effective...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2019-101630
更新日期:2020-11-03 00:00:00
abstract:BACKGROUND:Patient-reported outcome measures are increasingly used in sports medicine to assess results after treatment, but interpretability of change for many instruments remains unclear. OBJECTIVE:To define the minimum clinically important difference (MCID) for the Victorian Institute of Sport Assessment scale (VIS...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsports-2012-091163
更新日期:2014-03-01 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:OBJECTIVE:To assess the outcome of athletes returning to contact sport with indwelling fracture implants. METHOD:A retrospective analysis of professional rugby union players competing in the South Wales premier league. RESULTS:Fifteen athletes were identified who had returned to competitive rugby union with retained ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.31.4.319
更新日期:1997-12-01 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:OBJECTIVES:To investigate the validity and reliability of surface electromyography (EMG) as a new non-invasive determinant of the metabolic response to incremental exercise in elite cyclists. The relation between EMG activity and other more conventional methods for analysing the aerobic-anaerobic transition such as blo...
journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.33.3.178
更新日期:1999-06-01 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::Sleep is an important determinant of collegiate athlete health, well-being and performance. However, collegiate athlete social and physical environments are often not conducive to obtaining restorative sleep. Traditionally, sleep has not been a primary focus of collegiate athletic training and is neglected due to comp...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2019-100590
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:To compare injury rates among professional men's football teams that have a winter break in their league season schedule with corresponding rates in teams that do not. METHODS:56 football teams from 15 European countries were prospectively followed for seven seasons (2010/2011-2016/2017)-a total of 155 team-...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2018-099506
更新日期:2019-10-01 00:00:00
abstract::The purpose of this study was to formulate a simplistic method of assessing human structural dysplasia and to validate a classification system that would objectively categorize the type and extent of such dysplasia through the use of indices. Anthropometric measurements were taken from a sample of 222 male college stu...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.18.1.22
更新日期:1984-03-01 00:00:00
abstract:INTRODUCTION:The incidence of depression is high during the perinatal period. This mood disorder can have a significant impact on the mother, the child and the family. OBJECTIVE:To examine the effect of an exercise programme during pregnancy on the risk of perinatal depression. METHODS:Healthy women who were <16 week...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsports-2017-098926
更新日期:2019-03-01 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 determine whether the psychological characteristics of athletes who have undergone an anterior cruciate ligament (ACL) reconstruction change during rehabilitation are related to returning to competitive sport. DESIGN:Prospective longitudinal study. METHOD:87 athletes completed the Emotional Response of A...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.044818
更新日期:2009-05-01 00:00:00
abstract:INTRODUCTION:The hip is the second most common area for injury in collegiate athletes and may account for 2-5% of all sports injuries. Hip and groin pain in the athlete has long been associated with structural abnormalities of the femoral neck, acetabulum and labral pathology. REVIEW:The relationship between osteoarth...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2010.082529
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVE:To review and determine the effectiveness of exercise treatment in osteoarthritis of the knee. METHODS:A computerised literature search of Medline was carried out searching between June 1966 and January 2000. RESULTS:Twenty three randomised controlled trials were identified from the literature. Only three t...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.34.5.326
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:To analyse risk factors leading to injuries during snowboarding. DESIGN:A case-control multicentre survey of injured and non-injured snowboarders. SETTING:One tertiary and two secondary trauma centres in Bern, Switzerland. METHODS:All snowboard injuries admitted to our tertiary and two affiliated secondary...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2010.071357
更新日期:2010-09-01 00:00:00