Exercise-induced knee joint laxity in distance runners.

Abstract:

:The objectives of this study were to evaluate the effect of exercise on knee joint laxity. If exercise induced laxity is physiological, incorporation of this quality into a ligament replacement material would be indicated. Twenty recreational long distance runners average age 41 (range 24 to 50 yr) were tested before and immediately after 30 minutes of running. Using a computerized goniometer type instrument (Acufex KSS), knee flexion, axial tibial rotation and anterior-posterior tibial displacement were simultaneously recorded, while the runners underwent tests of static as well as dynamic knee joint laxity. At 30 degrees of knee flexion, a maximum increase of 16 per cent in mean total anterior-posterior laxity post-exercise was found. At the examination 30 minutes post-exercise, laxity at 30 degrees of knee flexion was still increased. However, laxity at 90 degrees of knee flexion had decreased to pre-exercise levels or below. Anterior tibial displacement, recorded during eccentric quadriceps activity (0 to 90 degrees of knee flexion) with weights attached to the foot, showed a maximum of 18 per cent increase in total anterior-posterior laxity post-exercise. It is suggested that the laxity increase is caused in part by a true ligamentous laxity increase, and in part by a decreased resting tone of the fatigued muscles.

journal_name

Br J Sports Med

authors

Johannsen HV,Lind T,Jakobsen BW,Krøner K

doi

10.1136/bjsm.23.3.165

subject

Has Abstract

pub_date

1989-09-01 00:00:00

pages

165-8

issue

3

eissn

0306-3674

issn

1473-0480

journal_volume

23

pub_type

杂志文章
  • Calf muscle wasting after tibial shaft fracture.

    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

    authors: Khalid M,Brannigan A,Burke T

    更新日期:2006-06-01 00:00:00

  • An intensive Alpine climbing expedition and its influence on some anthropometric measurements.

    abstract::The effects of an intensive 4 week Alpine climbing expedition on percentage body fat, absolute body fat and lean body mass was investigated in 14 adult male students. Anthropometric measures were taken on two occasions during the training period prior to the expedition, twice during the expedition and finally eight we...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.14.2-3.126

    authors: Baker SJ

    更新日期:1980-07-01 00:00:00

  • Caffeine, maximal power output and fatigue.

    abstract::The purpose of this investigation was to determine the effects of caffeine ingestion on maximal power output and fatigue during short term, high intensity exercise. Nine adult males performed 15 s maximal exercise bouts 60 min after ingestion of caffeine (7 mg.kg-1) or placebo. Exercise bouts were carried out on a mod...

    journal_title:British journal of sports medicine

    pub_type: 临床试验,杂志文章

    doi:10.1136/bjsm.22.4.132

    authors: Williams JH,Signorile JF,Barnes WS,Henrich TW

    更新日期:1988-12-01 00:00:00

  • Differences in sole arch indices in various sports.

    abstract:BACKGROUND:There are controversial data about the relation between foot morphology and athletic injuries of the lower extremity. Studies in soldiers have shown some relationship, whereas those involving athletes have not shown any significant relationship. The reason for these differences is not clear. OBJECTIVE:To de...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2003.011478

    authors: Aydog ST,Tetik O,Demirel HA,Doral MN

    更新日期:2005-02-01 00:00:00

  • Delayed union stress fractures of the anterior tibia: conservative management.

    abstract:INTRODUCTION:A conservative method of treating four delayed union stress fractures of the anterior mid-tibia is described, with an illustrative case history. METHODS:Once diagnosed each of the patients was treated in a pneumatic lower leg brace with modified rest. The mean (range) age of the patients was 28 (24-32) ye...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.35.1.74

    authors: Batt ME,Kemp S,Kerslake R

    更新日期:2001-02-01 00:00:00

  • Alterations to cell metabolism in connective tissues of the knee after ovariohysterectomy in a rabbit model: are there implications for the postmenopausal athlete?

    abstract:BACKGROUND:Participation in regular exercise and athletic activities across the lifespan is encouraged to maintain the cardiovascular and musculoskeletal systems and general wellbeing. Before the menopause there is an increased risk of anterior cruciate ligament (ACL) injuries in female athletes, whereas there is an in...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2008.054296

    authors: Hart DA,Achari Y

    更新日期:2010-09-01 00:00:00

  • Epidemiology of medically treated sport and active recreation injuries in the Latrobe Valley, Victoria, Australia.

    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

    authors: Cassell EP,Finch CF,Stathakis VZ

    更新日期:2003-01-01 00:00:00

  • Left atrial myocardial function in either physiological or pathological left ventricular hypertrophy: a two-dimensional speckle strain study.

    abstract:BACKGROUND:Atrial function is an integral part of cardiac function that is often neglected. The presence of left ventricule hypertrophy (LVH) due to arterial hypertension may impair atrial function. However, it has also been suggested that physical training attenuates the age-associated impairment of diastolic filling....

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2007.041210

    authors: D'Andrea A,De Corato G,Scarafile R,Romano S,Reigler L,Mita C,Allocca F,Limongelli G,Gigantino G,Liccardo B,Cuomo S,Tagliamonte G,Caso P,Calbrò R

    更新日期:2008-08-01 00:00:00

  • Athletic groin pain: a systematic review and meta-analysis of surgical versus physical therapy rehabilitation outcomes.

    abstract:BACKGROUND:Athletic groin pain (AGP) is an encompassing term for the multitude of chronic conditions presenting as pain in the inguinal region. The purpose of this review was to compare the return to play rates (RTPrate) and return to play times (RTPtime) between surgical and rehabilitation interventions in the treatme...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,meta分析,评审

    doi:10.1136/bjsports-2014-093715

    authors: King E,Ward J,Small L,Falvey E,Franklyn-Miller A

    更新日期:2015-11-01 00:00:00

  • Running performance, not anthropometric factors, is associated with race success in a Triple Iron Triathlon.

    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

    authors: Knechtle B,Kohler G

    更新日期:2009-06-01 00:00:00

  • Illness and injury in athletes during the competition period at the London 2012 Paralympic Games: development and implementation of a web-based surveillance system (WEB-IISS) for team medical staff.

    abstract:BACKGROUND:In this study we describe (1) the implementation of a novel web-based injury and illness surveillance system (WEB-IISS) for use by a team of physicians at multisport events and (2) the incidence and characteristics of injuries and illness in athletes during the London 2012 Paralympic Games. METHODS:Overall,...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsports-2013-092375

    authors: Derman W,Schwellnus M,Jordaan E,Blauwet CA,Emery C,Pit-Grosheide P,Marques NA,Martinez-Ferrer O,Stomphorst J,Van de Vliet P,Webborn N,Willick SE

    更新日期:2013-05-01 00:00:00

  • Elite football teams that do not have a winter break lose on average 303 player-days more per season to injuries than those teams that do: a comparison among 35 professional European teams.

    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

    authors: Ekstrand J,Spreco A,Davison M

    更新日期:2019-10-01 00:00:00

  • Examining pacing profiles in elite female road cyclists using exposure variation analysis.

    abstract:OBJECTIVE:In this study, the amplitude and time distribution of power output in a variety of competitive cycling events through the use of a new mathematical analysis was examined: exposure variation analysis (EVA). DESIGN:Descriptive field study. SETTING:Various professional road cycling events, including; a 5-day-e...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2008.047787

    authors: Abbiss CR,Straker L,Quod MJ,Martin DT,Laursen PB

    更新日期:2010-05-01 00:00:00

  • Growth factor-based therapies provide additional benefit beyond physical therapy in resistant elbow tendinopathy: a prospective, single-blind, randomised trial of autologous blood injections versus platelet-rich plasma injections.

    abstract:BACKGROUND:Growth factor technologies are increasingly used to enhance healing in musculoskeletal injuries, particularly in sports medicine. Two such products; platelet-rich plasma (PRP) and autologous blood, have a growing body of supporting evidence. No previous trial has directly compared the efficacy of these two m...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1136/bjsm.2010.082503

    authors: Creaney L,Wallace A,Curtis M,Connell D

    更新日期:2011-09-01 00:00:00

  • How to minimise the health risks to athletes who compete in weight-sensitive sports review and position statement on behalf of the Ad Hoc Research Working Group on Body Composition, Health and Performance, under the auspices of the IOC Medical Commission.

    abstract::A focus on low body weight and body fat content, combined with regulations in some weight-sensitive sports, are considered risk factors for extreme dieting, eating disorders (EDs) and related health consequences among athletes. At present there are, from a health perspective, no generally accepted optimum values for b...

    journal_title:British journal of sports medicine

    pub_type: 共识发展会议,杂志文章

    doi:10.1136/bjsports-2013-092966

    authors: Sundgot-Borgen J,Meyer NL,Lohman TG,Ackland TR,Maughan RJ,Stewart AD,Müller W

    更新日期:2013-11-01 00:00:00

  • Strategies to prevent injury in adolescent sport: a systematic review.

    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

    authors: Abernethy L,Bleakley C

    更新日期:2007-10-01 00:00:00

  • The effects of eccentric training on lower limb flexibility: a systematic review.

    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

    authors: O'Sullivan K,McAuliffe S,Deburca N

    更新日期:2012-09-01 00:00:00

  • Sport and active recreation injuries in Australia: evidence from emergency department presentations.

    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

    authors: Finch C,Valuri G,Ozanne-Smith J

    更新日期:1998-09-01 00:00:00

  • Methods for injury surveillance in international cricket.

    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

    authors: Orchard JW,Newman D,Stretch R,Frost W,Mansingh A,Leipus A

    更新日期:2005-04-01 00:00:00

  • Do smartphone applications and activity trackers increase physical activity in adults? Systematic review, meta-analysis and metaregression.

    abstract:OBJECTIVE:To determine the effectiveness of physical activity interventions involving mobile applications (apps) or trackers with automated and continuous self-monitoring and feedback. DESIGN:Systematic review and meta-analysis. DATA SOURCES:PubMed and seven additional databases, from 2007 to 2020. STUDY SELECTION:R...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,评审

    doi:10.1136/bjsports-2020-102892

    authors: Laranjo L,Ding D,Heleno B,Kocaballi B,Quiroz JC,Tong HL,Chahwan B,Neves AL,Gabarron E,Dao KP,Rodrigues D,Neves GC,Antunes ML,Coiera E,Bates DW

    更新日期:2020-12-21 00:00:00

  • Clinical assessment of the scapula: a review of the literature.

    abstract::Scientific evidence supporting a role for faulty scapular positioning in patients with various shoulder disorders is cumulating. Clinicians who manage patients with shoulder pain and athletes at risk of developing shoulder pain need to have the skills to assess static and dynamic scapular positioning and dynamic contr...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,评审

    doi:10.1136/bjsports-2012-091059

    authors: Struyf F,Nijs J,Mottram S,Roussel NA,Cools AM,Meeusen R

    更新日期:2014-06-01 00:00:00

  • General practitioners and doping in sport: attitudes and experience.

    abstract:OBJECTIVES:To examine the attitudes to, and knowledge of, doping in sport of French general practitioners (GPs), and their contact with drug taking athletes on an everyday basis. METHODS:A total of 402 GPs were randomly selected from all over France and interviewed by telephone, using a prepared script. RESULTS:The r...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.37.4.335

    authors: Laure P,Binsinger C,Lecerf T

    更新日期:2003-08-01 00:00:00

  • The genetic basis for elite running performance.

    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

    authors: Tucker R,Santos-Concejero J,Collins M

    更新日期:2013-06-01 00:00:00

  • MRI study of the size, symmetry and function of the trunk muscles among elite cricketers with and without low back pain.

    abstract:OBJECTIVES:To determine if asymmetry of trunk muscles and deficits of motor control exist among elite cricketers with and without low back pain (LBP). DESIGN:Single-blinded observational quasi-experimental design study SETTING:Assessments were conducted in a hospital setting. PARTICIPANTS:Among a total eligible samp...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2007.044024

    authors: Hides J,Stanton W,Freke M,Wilson S,McMahon S,Richardson C

    更新日期:2008-10-01 00:00:00

  • Painful incarcerated hernia following a rugby union lineout.

    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

    authors: Thomas RH,Thomas GO

    更新日期:1999-02-01 00:00:00

  • Ankle injuries in football academies: a three-centre prospective study.

    abstract:BACKGROUND:Injuries are common in youth soccer, of which ankle injuries form a significant proportion. However, there is a lack of prospective data on the epidemiology and nature of these injuries. AIM:To prospectively study the incidence of ankle injuries in three Football Association (FA) academies, with particular ...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,多中心研究

    doi:10.1136/bjsm.2009.067900

    authors: Cloke DJ,Ansell P,Avery P,Deehan D

    更新日期:2011-07-01 00:00:00

  • Lactic acid removal and heart rate frequencies during recovery after strenuous rowing exercise.

    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 recove...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.19.4.199

    authors: Koutedakis Y,Sharp NC

    更新日期:1985-12-01 00:00:00

  • Spontaneous rupture of extensor pollicis longus tendon in a kick boxer.

    abstract::A 23 year old male kick boxer presented with a 24 hour history of pain and being unable to extend the interphalangeal joint of the left thumb. There was no history of trauma or any other risk factor for spontaneous rupture of the extensor pollicis longus tendon. On the previous day, he had been doing reverse press ups...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.32.2.178

    authors: Lloyd TW,Tyler MP,Roberts AH

    更新日期:1998-06-01 00:00:00

  • An integrative 'omics' solution to the detection of recombinant human erythropoietin and blood doping.

    abstract::Administration of recombinant human erythropoietin (rHumanEPO) improves sporting performance and hence is frequently subject to abuse by athletes, although rHumanEPO is prohibited by the WADA. Approaches to detect rHumanEPO doping have improved significantly in recent years but remain imperfect. A new transcriptomic-b...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,评审

    doi:10.1136/bjsports-2014-093529

    authors: Pitsiladis YP,Durussel J,Rabin O

    更新日期:2014-05-01 00:00:00

  • Physiology of accidental hypothermia in the mountains: a forgotten story.

    abstract::Hypothermia is a serious condition, often with fatal consequences. The physiology and mechanisms of hypothermia in mountainous areas are discussed. It is as important to facilitate heat loss, especially during periods of high exertion, as it is to maintain heat production and preserve insulation. This can be partly ac...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.37.6.548

    authors: Ainslie PN,Reilly T

    更新日期:2003-12-01 00:00:00