Document Detail

Decreasing landing forces: effect of instruction.
MedLine Citation:
PMID:  10953904     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To examine the effects of instructions related to joint kinematics, auditory stimuli, and imagery on lowering the vertical ground reaction forces associated with landing from a jump. STUDY DESIGN: Randomised controlled trial. SETTING: A laboratory in an educational institution. SUBJECTS: Eighty asymptomatic subjects (27 men) with a mean age of 24 years. INTERVENTION: Subjects were randomly assigned to the following groups: (1) instruction (limb position instructions); (2) auditory cue (listen to impact sounds); (3) imagery (metaphorical); (4) control. Subjects were required to jump from a box 300 mm in height and land on a force plate. Measures of the ground reaction force were recorded before and after the intervention. MAIN OUTCOME MEASURE: The peak vertical ground reaction force recorded at footstrike. RESULTS: The peak vertical ground reaction forces in the technical instruction and auditory groups were significantly less than those of the control group. There was no significant difference between the auditory and technical instruction groups. There was no significant difference between the imagery and control groups. CONCLUSIONS: When an aim of a rehabilitation programme is to minimise forces on the lower limb during landing type activities, the findings support the use of instructions related to kinematics as well as instructions that draw the patient's attention to the sound at impact.
P J McNair; H Prapavessis; K Callender
Related Documents :
21212094 - Endurance training activates pancreatic islets amp-activated kinase-uncoupling protein ...
17685694 - Influence of training background on jumping height.
10721124 - Kynurenine concentration of serum was increased by exercise.
1787554 - Physiological responses to maximal intermittent exercise: differences between endurance...
6641164 - Acid hydrolase activity in tissues of mice after physical stress.
24327764 - The effectiveness of facial exercises for facial rejuvenation: a systematic review.
Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  British journal of sports medicine     Volume:  34     ISSN:  0306-3674     ISO Abbreviation:  Br J Sports Med     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-11-28     Completed Date:  2000-12-07     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0432520     Medline TA:  Br J Sports Med     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  293-6     Citation Subset:  IM    
Neuromuscular Research Unit, School of Physiotherapy, Auckland University of Technology, New Zealand.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Exercise / physiology*
Imagery (Psychotherapy)
Knee Joint / physiology*
Leg / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Factor XIIa and triacylglycerol rich lipoproteins: responses to exercise intervention.
Next Document:  Ratings of perceived exertion in braille: validity and reliability in production mode.