The 'impact' of force filtering cut-off frequency on the peak knee abduction moment during landing: artefact or 'artifiction'?

Abstract:

BACKGROUND:Joint moments computed using inverse dynamic techniques are important estimators of net joint loads. Joints moments computed from marker position and ground reaction force data filtered using different cut-off frequencies may capture changes in moment magnitudes at a single joint that exceed normal physiological response. Peak external knee abduction moment (KAM) generated during landing (ie, the drop vertical jump, DVJ) predicts anterior cruciate ligament injury risk using marker and force data filtered at different cut-off frequencies. The purpose of the current investigation was to determine the effects of using the same low cut-off frequencies versus different cut-off frequencies on joint moment magnitudes to evaluate if artificial smoothing attenuates actual resultant joint loads related to injury risk. METHODS:Twenty-two female, high school volleyball players performed three maximum DVJs in a laboratory setting. The average peak KAM was computed for each knee using marker and force data filtered with the same low cut-off frequencies and different cut-off frequencies. RESULTS:Peak KAMs were significantly larger using different cut-off frequencies. The order of athletes ranked based on the magnitude of their peak KAMs did not significantly change across all filtering cut-off frequencies. CONCLUSIONS:The magnitude of peak KAM may differ when the same low or different higher cut-off frequencies are used to filter marker and ground reaction forces (GRF) data collected using standard motion capture equipment. It is not clear to what extent the decrease in peak KAM reported when the same low cut-off frequencies were used was solely due to attenuation of the GRF signal.

journal_name

Br J Sports Med

authors

Roewer BD,Ford KR,Myer GD,Hewett TE

doi

10.1136/bjsports-2012-091398

subject

Has Abstract

pub_date

2014-03-01 00:00:00

pages

464-8

issue

6

eissn

0306-3674

issn

1473-0480

pii

bjsports-2012-091398

journal_volume

48

pub_type

杂志文章
  • Hip fracture-dislocation in football: a report of two cases and review of the literature.

    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

    authors: Giza E,Mithöfer K,Matthews H,Vrahas M

    更新日期:2004-08-01 00:00:00

  • Does physical activity reduce seniors' need for healthcare?: a study of 24 281 Canadians.

    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

    authors: Woolcott JC,Ashe MC,Miller WC,Shi P,Marra CA,PACC Research Team.

    更新日期:2010-09-01 00:00:00

  • Visual or computer-based measurements: important for interpretation of athletes' ECG.

    abstract:BACKGROUND:ECG is recommended for preparticipation health examination in athletes. Owing to a lack of consensus on how to read and interpret athletes' ECGs, different criteria for abnormality are used. AIMS:To compare the prevalence of abnormal ECGs and test the correlation between visual and computer-based measuremen...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsports-2014-093412

    authors: Berge HM,Steine K,Andersen TE,Solberg EE,Gjesdal K

    更新日期:2014-05-01 00:00:00

  • Dietary supplements for treating osteoarthritis: a systematic review and meta-analysis.

    abstract:OBJECTIVE:To investigate the efficacy and safety of dietary supplements for patients with osteoarthritis. DESIGN:An intervention systematic review with random effects meta-analysis and meta-regression. DATA SOURCES:MEDLINE, EMBASE, Cochrane Register of Controlled Trials, Allied and Complementary Medicine and Cumulati...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,meta分析,评审

    doi:10.1136/bjsports-2016-097333

    authors: Liu X,Machado GC,Eyles JP,Ravi V,Hunter DJ

    更新日期:2018-02-01 00:00:00

  • Ex-professional association footballers have an increased prevalence of osteoarthritis of the hip compared with age matched controls despite not having sustained notable hip injuries.

    abstract:OBJECTIVE:To compare the prevalence of self reported, physician diagnosed osteoarthritis (OA) of the hip in ex-professional footballers with that in age matched controls in the general public. METHOD:A questionnaire was sent to the 92 football league and premiership managers to assess the prevalence of OA of various j...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.37.1.80

    authors: Shepard GJ,Banks AJ,Ryan WG

    更新日期:2003-02-01 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

  • Eye care and ocular findings at the Olympic and Paralympic Games Rio 2016.

    abstract:OBJECTIVES:To describe the attendance and ocular profile of competitors and members of delegations who attended the Polyclinic Ophthalmology Division during the Olympic and Paralympic Games Rio 2016. METHODS:The eye clinic was allocated in the purpose-built polyclinic opened for competitors and members of delegations ...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsports-2019-101763

    authors: Lima VL,Fernandes AG,Viana RG,Feder D

    更新日期:2020-04-02 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

  • Ultrasound guided sclerosis of neovessels in painful chronic Achilles tendinosis: pilot study of a new treatment.

    abstract:BACKGROUND:The mechanism that causes pain in chronic Achilles tendinosis is not known. However, high resolution colour Doppler ultrasound has shown that neovascularisation may be involved. OBJECTIVE:To investigate if sclerosing the neovessels would affect the level of tendon pain. METHODS:The effect of colour Doppler...

    journal_title:British journal of sports medicine

    pub_type: 临床试验,杂志文章

    doi:10.1136/bjsm.36.3.173

    authors: Ohberg L,Alfredson H

    更新日期:2002-06-01 00:00:00

  • Is extensive cardiopulmonary screening useful in athletes with previous asymptomatic or mild SARS-CoV-2 infection?

    abstract:OBJECTIVE:During the COVID-19 pandemic, it is essential to understand if and how to screen SARS-CoV-2-positive athletes to safely resume training and competitions. The aim of this study is to understand which investigations are useful in a screening protocol aimed at protecting health but also avoiding inappropriate ex...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsports-2020-102789

    authors: Gervasi SF,Pengue L,Damato L,Monti R,Pradella S,Pirronti T,Bartoloni A,Epifani F,Saggese A,Cuccaro F,Bianco M,Zeppilli P,Palmieri V

    更新日期:2021-01-01 00:00:00

  • Association football injuries to the brain. A preliminary report.

    abstract::In 1975 the authors sent a questionnaire to all players in the Norwegian First Division League Clubs to record the incidence of head injuries due to heading. The conclusion of the questionnaire is that there seems to be a low percentage of serious head injuries. None of the players had been operated on for epi- or sub...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.15.3.163

    authors: Tysvaer A,Storli O

    更新日期:1981-09-01 00:00:00

  • Biological variation in musculoskeletal injuries: current knowledge, future research and practical implications.

    abstract::Evidence from familial and genetic association studies have reported that DNA sequence variants play an important role, together with non-genetic factors, in the aetiology of both exercise-associated and occupational-associated acute and chronic musculoskeletal soft tissue injuries. The associated variants, which have...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,评审

    doi:10.1136/bjsports-2015-095180

    authors: Collins M,September AV,Posthumus M

    更新日期:2015-12-01 00:00:00

  • Cardiovascular fitness and thermoregulation during prolonged exercise in man.

    abstract::Nine healthy male subjects differing in their training status (VO2 max 54 +/- 7 ml.min-1.kg-1, mean +/- SD; 43-64 ml.min-1 kg-1, range) exercised on two occasions separated by one week. On each occasion, having fasted overnight, subjects exercised for 1 h on an electrically braked cycle ergometer at a workload equival...

    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.23.2.109

    authors: Greenhaff PL

    更新日期:1989-06-01 00:00:00

  • Perception of Nigerian athletes of the use of mouth guards to prevent the stresses of sports injury.

    abstract:OBJECTIVE:The perception of Nigerian athletes of the use of mouth guards to prevent the stresses of sports injuries was examined using psychological, sociological, and physical stress variables. METHODS:The descriptive survey research design was used in this study. Participants (n = 333) were selected using the purpos...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2003.004838

    authors: Adegbesan OA,Onyeaso CO

    更新日期:2004-12-01 00:00:00

  • Heart rate-based lactate minimum test: a reproducible method.

    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 stud...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2006.032714

    authors: Strupler M,Mueller G,Perret C

    更新日期:2009-06-01 00:00:00

  • Sacral stress fracture: an unusual cause of low back pain in an amateur tennis player.

    abstract::Stress fractures are common in athletes, and their incidence in sport is estimated at 2-4%. A case is reported of a stress fracture of the sacrum in an amateur tennis player. The patient was treated with rest and physiotherapy, focusing on stretching programmes and analgesic treatments, followed by an educational prog...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2005.023473

    authors: Silva RT,De Bortoli A,Laurino CF,Abdalla RJ,Cohen M

    更新日期:2006-05-01 00:00:00

  • Effects of acute prednisolone administration on exercise endurance and metabolism.

    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

    authors: Arlettaz A,Collomp K,Portier H,Lecoq AM,Rieth N,Le Panse B,De Ceaurriz J

    更新日期:2008-04-01 00:00:00

  • Injury risk factors, screening tests and preventative strategies: a systematic review of the evidence that underpins the perceptions and practices of 44 football (soccer) teams from various premier leagues.

    abstract:PURPOSE:To systematically review the scientific level of evidence for the 'Top 3' risk factors, screening tests and preventative exercises identified by a previously published survey of 44 premier league football (soccer) teams. Also, to provide an overall scientific level of evidence and graded recommendation based on...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,评审

    doi:10.1136/bjsports-2014-094104

    authors: McCall A,Carling C,Davison M,Nedelec M,Le Gall F,Berthoin S,Dupont G

    更新日期:2015-05-01 00:00:00

  • Metabolic effects of heavy physical training on female 'age-group' swimmers.

    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

    authors: Robinson PS,Caffrey GP,Ridinger RR,Steinmetz CW,Bartels RL,Shaffer TE

    更新日期:1978-03-01 00:00:00

  • Death of a fencer.

    abstract::The first fatal accident to a fencer in the United Kingdom is described. Several factors contributed to the accident but there appears to be no simple way of preventing a recurrence, but some additional precautions are discussed. ...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.18.3.220

    authors: Crawfurd AR

    更新日期:1984-09-01 00:00:00

  • New guidelines are needed to manage heat stress in elite sports--The Fédération Internationale de Volleyball (FIVB) Heat Stress Monitoring Programme.

    abstract:BACKGROUND:There seems to be a discrepancy between the available heat stress guidelines and the actual risk of heat-related illness among professional beach volleyball players competing under hot and humid conditions. OBJECTIVE:To monitor heat stress and record cases of heat-related medical forfeits on the Swatch FIVB...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsports-2012-091102

    authors: Bahr R,Reeser JC

    更新日期:2012-09-01 00:00:00

  • Are current back protectors suitable to prevent spinal injury in recreational snowboarders?

    abstract:OBJECTIVE:Back protectors for snowboarders were analysed with respect to their potential to prevent spinal injury. DESIGN:In 20 Swiss skiing resorts, athletes were interviewed on the slope. In addition, an online survey was conducted. The performance of 12 commercially available back protectors was investigated by mea...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2010.072728

    authors: Schmitt KU,Liechti B,Michel FI,Stämpfli R,Brühwiler PA

    更新日期:2010-09-01 00:00:00

  • Association of white blood cell subfraction concentration with fitness and fatness.

    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

    authors: Johannsen NM,Priest EL,Dixit VD,Earnest CP,Blair SN,Church TS

    更新日期:2010-06-01 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

  • Injuries in professional motor car racing drivers at a racing circuit between 1996 and 2000.

    abstract:BACKGROUND:Research on injuries in racing drivers is limited. OBJECTIVE:To gain more information about such injuries. METHODS:Injuries recorded during and after races between 1996 and 2000 were investigated using the medical charts from the circuit medical centre at Fuji Speedway, which is one of the biggest circuits...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.2003.007674

    authors: Minoyama O,Tsuchida H

    更新日期:2004-10-01 00:00:00

  • An epidemiological investigation of training and injury patterns in British triathletes.

    abstract::During the competitive season of 1990, 155 British triathletes whose competitive distances varied from sprint to full ironman, and who self-classified themselves as recreational, intermediate or élite, kept a training diary for an 8-week period. They gave details of injuries sustained while training for, or competing ...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.28.3.191

    authors: Korkia PK,Tunstall-Pedoe DS,Maffulli N

    更新日期:1994-09-01 00:00:00

  • Wake up call for collegiate athlete sleep: narrative review and consensus recommendations from the NCAA Interassociation Task Force on Sleep and Wellness.

    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

    authors: Kroshus E,Wagner J,Wyrick D,Athey A,Bell L,Benjamin HJ,Grandner MA,Kline CE,Mohler JM,Roxanne Prichard J,Watson NF,Hainline B

    更新日期:2019-06-01 00:00:00

  • Voluntary fluid intake and core temperature responses in adolescent tennis players: sports beverage versus water.

    abstract:OBJECTIVE:To examine differences in ad libitum fluid intake, comparing a 6% carbohydrate/electrolyte drink (CHO-E) and water, and associated differences in core temperature and other selected physiological and perceptual responses in adolescent athletes during tennis training in the heat. METHODS:Fourteen healthy, fit...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1136/bjsm.2005.023333

    authors: Bergeron MF,Waller JL,Marinik EL

    更新日期:2006-05-01 00:00:00

  • Bilateral stress fractures of the ulnae in a Kendo (Japanese fencing) player.

    abstract::A case of bilateral stress fractures of the ulnae in a Kendo (Japanese fencing) player is reported; the mechanism of the fractures, particularly the difference in the site of fracture between the right and left ulna, is discussed. ...

    journal_title:British journal of sports medicine

    pub_type: 杂志文章

    doi:10.1136/bjsm.32.4.340

    authors: Sujino T,Ohe T,Shinozuka M

    更新日期:1998-12-01 00:00:00

  • Six-minute walk test in children with chronic conditions.

    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

    authors: Hassan J,van der Net J,Helders PJ,Prakken BJ,Takken T

    更新日期:2010-03-01 00:00:00