Document Detail

Influence of vibration on work performance during ergometer cycling.
MedLine Citation:
PMID:  2711539     Owner:  NLM     Status:  MEDLINE    
With a view to investigating how vibration affects dynamic working capacity, exercise tests were performed both with and without superimposed vibration. The performance of 8 healthy, non-smoking 20-year-old males exercising on a cycle ergometer at a constant load was studied on four occasions, with and without vibration in a randomly chosen order. The frequency of the vibration, which was applied vertically through the pedals, was 20 Hz and the acceleration was 20 m/s2 RMS. The handlebars and saddle of the cycle were insulated from the vibration. The exercise time averaged 47 min with vibration and 60 min without. The vibratory stress reduced the exercise time by 13 +/- 2.9 min (mean +/- SEM) (P less than 0.005). The average heart rate when the exercise was stopped was 180.3 beats/min with vibration and 180.7 beats/min without. The systolic blood pressure after 20 min averaged 188 mm Hg with vibration and 187 mm Hg without vibration. Both with and without vibration, 6 of the 8 subjects stated that leg fatigue was the cause of their inability to continue pedalling longer. Our conclusion is that in the performance of dynamic muscular work endurance may decrease under the influence of vibration.
B Samuelson; L Jorfeldt; B Ahlborg
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Upsala journal of medical sciences     Volume:  94     ISSN:  0300-9734     ISO Abbreviation:  Ups. J. Med. Sci.     Publication Date:  1989  
Date Detail:
Created Date:  1989-06-05     Completed Date:  1989-06-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0332203     Medline TA:  Ups J Med Sci     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  73-9     Citation Subset:  IM    
Research Foundation for Occupational Safety and Health, Swedish Construction Industry, Danderyd.
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MeSH Terms
Exercise Test*
Physical Endurance*
Time Factors
Vibration / adverse effects*
Work Capacity Evaluation*

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

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