EFFECT OF SAND ON KNEE LOAD DURING A SINGLE-LEG JUMP TASK: IMPLICATIONS FOR INJURY PREVENTION AND REHABILITATION PROGRAMS.

The purpose of the study was to determine potential differences in landing strategies and subsequent joint loads at the knee (knee abduction moment [KAM], anterior-posterior [AP] tibial translation, and total knee shear force) when jumping onto sand and firm ground from both a level surface and a 30...

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Publicado en:Journal of Strength & Conditioning Research Vol. 34; no. 11; pp. 3164 - 3173
Autores principales: RICHARDSON, MARK C., MURPHY, SINEAD, TOMMACPHERSON, ENGLISH, BRYAN, SPEARS, IAIN, CHESTERTON, PAUL
Formato: pictorial research tables/charts Journal Article
Publicado: Lippincott Williams & Wilkins Nov2020
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Nov2020
      vid: 34
      iid: 11
      pid: 5086
      pub: Lippincott Williams & Wilkins
      place: Baltimore, Maryland
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        10.1519/jsc.0000000000002623
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        atl: EFFECT OF SAND ON KNEE LOAD DURING A SINGLE-LEG JUMP TASK: IMPLICATIONS FOR INJURY PREVENTION AND REHABILITATION PROGRAMS.
      aug:
        au:
          RICHARDSON, MARK C.
          MURPHY, SINEAD
          TOMMACPHERSON
          ENGLISH, BRYAN
          SPEARS, IAIN
          CHESTERTON, PAUL
        affil: Psychology, Sport and Exercise Department, Sport and Exercise Science Section, Teesside University, Middlesbrough, United Kingdom
      sug:
        subj:
          Weight-Bearing
          Knee Injuries Prevention and Control
          Knee Injuries Rehabilitation
          Jumping
          Task Performance and Analysis
          Sand
          Training Effect (Physiology)
          Human
          Repeated Measures
          Young Adult
          Adult
          Abduction
          Biomechanics
          Descriptive Statistics
          Data Analysis Software
          Adult: 19-44 years
      ab: The purpose of the study was to determine potential differences in landing strategies and subsequent joint loads at the knee (knee abduction moment [KAM], anterior-posterior [AP] tibial translation, and total knee shear force) when jumping onto sand and firm ground from both a level surface and a 30-cm height. Firm ground would act as the control for the study. Seventeen subjects (age: 23.6 ± 3.7 years; body mass: 67.7 ± 10.3 kg; height: 168.5 ± 7.4 cm) performed 3 single-leg jumps on their dominant leg for each of the 4 conditions tested (ground level, sand level, ground height, and sand height). A repeated-measures design investigated the effect of sand on KAM, AP tibial translation, and total knee shear force. Data were analyzed using magnitude-based inferences and presented as percentage change with 90% confidence limits. Results indicated that sand had a clear beneficial effect on KAM, which was possibly moderate during a drop jump (30 cm) and possibly small from a level jump. Sand also had a possibly moderate beneficial effect on AP tibial translation from a level jump. The effect of sand on total knee shear force was unclear. These results suggest that sand may provide a safer alternative to firm ground when performing jump tasks commonly used in anterior cruciate ligament and patellofemoral joint injury prevention and rehabilitation programs. Sand may also allow for an accelerated rehabilitation program because jumping activities could potentially be implemented more safely at an earlier stage in the process.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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