Abstract:
OBJECTIVE:To investigate the stride pattern of different age groups of veteran runners in a marathon road race. METHODS:This kinematic study investigated the stride pattern (stride length, stride period, velocity, stance time, and non-stance time) for 151 runners (78 men aged up to 75-80, 73 women aged up to 60-64) at the 7 mile point. RESULTS:Significant declines for men with aging were found for mean stride length (from 2.4 m at age 40-49 to 2.0 m at age 60+), velocity, and non-stance time (p<0.05), whereas stride period changed little. The findings indicate that the lower velocities of older runners are associated with shorter strides whereas cadence changes little. However, when a statistical adjustment was made for the variation in runners' velocity, it was found that older runners did not have a significantly shorter stride length at any given velocity. CONCLUSION:Although a shorter stride is the mechanical route by which older runners lose velocity, the shorter stride may not be the fundamental cause of the velocity reduction with age. This has implications for researchers and coaches when investigating and training veteran distance runners.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Conoboy P,Dyson Rdoi
10.1136/bjsm.2006.026252subject
Has Abstractpub_date
2006-07-01 00:00:00pages
601-4; discussion 604issue
7eissn
0306-3674issn
1473-0480pii
bjsm.2006.026252journal_volume
40pub_type
杂志文章abstract::Preparticipation screening programmes for underlying cardiac pathologies are now commonplace for many international sporting organisations. However, providing medical clearance for an asymptomatic athlete without a family history of sudden cardiac death (SCD) is especially challenging when the athlete demonstrates par...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2011-090838
更新日期:2012-11-01 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:BACKGROUND:Reduced flexibility has been documented in athletes with lower limb injury, however, stretching has limited evidence of effectiveness in preventing injury or reducing the risk of recurrence. In contrast, it has been proposed that eccentric training can improve strength and reduce the risk of injury, and faci...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2011-090835
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVES:The 6-minute walk test (6MWT) is a frequently used indicator of functional exercise capacity. The goals of this study were to compare the 6-minute walk performance of three paediatric patient groups with that of healthy peers, to assess differences between published reference values and to investigate which ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2008.048512
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND/AIM:The main purposes of this study were to determine the injury incidence and severity in Australian amateur taekwondo athletes, and to investigate potential risk factors for injury in competition taekwondo. METHODS:Data were collected at New South Wales State Championships in 2010 and 2011. Injuries were ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2012-091666
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVES:To investigate the effects of two different regimens of androgenic-anabolic steroid (AAS) administration on serum lipid and lipoproteins, and recovery of these variables after drug cessation, as indicators of the risk for cardiovascular disease in healthy male strength athletes. METHODS:In a non-blinded stu...
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.2003.000199
更新日期:2004-06-01 00:00:00
abstract::Posterior dislocation of the shoulder is an uncommon injury, accounting for between 2% and 4% of all shoulder dislocations. It occurs most frequently in patients following convulsions or direct anterior force to the shoulder. It is a particularly uncommon injury in sport. This paper reports an unusual case of bilateal...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.31.1.74
更新日期:1997-03-01 00:00:00
abstract::This article reviews the magnetic resonance imaging (MRI) findings of the native and reconstructed anterior cruciate ligament (ACL). MRI is the most accurate non-invasive modality to evaluate the ACL. Tears of the ACL manifest with direct and indirect signs. The reconstructed ACL has several complications including re...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2008.050492
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:To describe new WHO 2020 guidelines on physical activity and sedentary behaviour. METHODS:The guidelines were developed in accordance with WHO protocols. An expert Guideline Development Group reviewed evidence to assess associations between physical activity and sedentary behaviour for an agreed set of heal...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2020-102955
更新日期:2020-12-01 00:00:00
abstract::There is little information on the application of generalized prediction equations to ethnic groups other than Europeans and groups of European descent. The purpose of this study was to crossvalidate conventional equations on a group of 56 Chinese adults. Body density was assessed by underwater weighing and also predi...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.29.1.52
更新日期:1995-03-01 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:OBJECTIVE:To examine the effects of short-term, medium-term and long-term resistance exercise training (RET) on measures of cardiometabolic health in adults. DESIGN:Intervention systematic review. DATA SOURCES:MEDLINE and Cochrane Library databases were searched from inception to February 2018. The search strategy in...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析
doi:10.1136/bjsports-2017-098970
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:To examine the association between fitness, BMI, and neutrophil, lymphocyte, monocyte, basophil, and eosinophil concentrations in apparently healthy, non-smoking men. DESIGN:Cross-sectional study of 452 men from the Aerobics Center Longitudinal Study examining the resting concentration of white blood cell su...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.050682
更新日期:2010-06-01 00:00:00
abstract::Injuries related to weight training are becoming increasingly common as the trend for body resistance training grows. There have been numerous injuries related to repeated stress, but this appears to be the first reported case of a fracture of the shaft of clavicle related to violent muscular contraction. It occurred ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2003.009068
更新日期:2004-10-01 00:00:00
abstract::There are many treatment modalities for ankle rehabilitation. These are reviewed, and the most effective training programme for rapid restoration of ankle movement, strength, endurance, and proprioception is selected. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.37.4.291
更新日期:2003-08-01 00:00:00
abstract::A previously well 30 year old man presented with a short history of intra-articular mechanical locking, swelling, and anteromedial joint line pain. There was localised tenderness, and McMurray's test was positive. Arthroscopy revealed a 3.6 x 2.6 x 1.5 cm firm pedicular localised pigmented villonodular synovitis origi...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.37.4.368
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVES:To investigate the influence of anthropometric parameters on race performance in ultra-endurance triathletes. DESIGN:Descriptive field study. SETTING:The Triple Iron Triathlon Germany 2006 in Lensahn over 11.6 km swimming, 540 km cycling and 126.6 km running. SUBJECTS:17 male Caucasian triathletes (mean (...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.039602
更新日期:2009-06-01 00:00:00
abstract::The dominance of East African distance runners and sprinters of West African origin invites discussion around the contribution of genetic and lifestyle factors to performance. In this review, we focus on the genetic basis for performance. Previous research associating candidate genes such as ACE and ACTN3 to endurance...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2013-092408
更新日期:2013-06-01 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:BACKGROUND:Tendinopathies of the rotator cuff muscles, biceps tendon and pectoralis major muscle are common causes of shoulder pain in athletes. Overuse insertional tendinopathy of pectoralis minor is a previously undescribed cause of shoulder pain in weightlifters/sportsmen. OBJECTIVES:To describe the clinical featur...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2006.032383
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND/AIM:Shoulder pain is a major musculoskeletal problem. We aimed to identify which baseline patient and clinical characteristics are associated with a better outcome, 6 weeks and 6 months after starting a course of physiotherapy for shoulder pain. METHODS:1030 patients aged ≥18 years referred to physiotherapy...
journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsports-2016-096084
更新日期:2018-02-01 00:00:00
abstract::Soccer is the world's most popular sport, with over 200 million participants world wide. Fractures account for only 4-9% of acute injuries, and hip fracture-dislocation is extremely uncommon. The potentially serious long term sequelae require that team physicians have an awareness of this injury. Two cases of traumati...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2003.005736
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:The therapeutic efficacy of non-surgical treatment strategies in Achilles tendinopathy (AT) has not been well clarified. Time-consuming and costly combinations of treatment for pain, physiotherapy and biomechanical procedures are often applied. OBJECTIVE:To analyse the efficacy of single therapeutic regimen...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2006.031732
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVES:To show how epidemiological data can be presented and analysed in frequency based and risk based formats and how risk based information can simplify management decisions on injury prevention strategies in professional football. METHODS:The club physiotherapists at four English professional football clubs pr...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.36.6.446
更新日期:2002-12-01 00:00:00
abstract:AIM:The purpose of this study was to investigate the relationship between physical workload and injury risk in elite youth football players. METHODS:The workload data and injury incidence of 32 players were monitored throughout 2 seasons. Multiple regression was used to compare cumulative (1, 2, 3 and 4-weekly) loads ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-095820
更新日期:2017-03-01 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:OBJECTIVE:To verify presence and severity of muscular and/or intravascular damage during a subterranean exploration of long duration. METHODS:We measured serum levels of creatine kinase (CK) and lactate dehydrogenase (LDH) as markers of muscular damage. We also measured haptoglobin as a marker of intravascular haemoly...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.021402
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:Snowboard cross (SBX) became an official Olympic sport in 2006. This discipline includes manoeuvring several obstacles while competing in heats. It is common for the riders to collide, making this sport both exciting and at risk of injuries. Although a recent study from the 2010 Olympic Games has shown that ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2011-090527
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Some controversy exists over the possibility that exercise during pregnancy might increase the risk of preterm delivery. OBJECTIVE:This study aimed to determine the possible cause-effect relationship between regular exercise performed during the second and third trimesters of pregnancy by previously sedenta...
journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2008.047837
更新日期:2008-08-01 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