Experimentally Induced Sandfly Fever Virus Infection in Man: Effects on Physical Performance,
Abstract
Nine subjects (7 experimentals, 2 controls) were studied before, during and after an experimentally induced episode of sandfly fever. During the fever, experimental subjects displayed decreases in measures of isometric muscle strength and isokinetic knee extensor strength at 36 deg/second. Three out of the seven subjects were unable to complete a submaximal exercise walk during the fever. Rectal temperature was elevated throughout the walk but no other physiological parameter was altered. After fever, submaximal exercise performance and muscle strength were similar to the prefever values. However, VO2 max was decreased after fever in all subjects. This probably was related to a decrease in hematocrit caused by blood loss over the period of the study rather than a direct effect of the virus. Our results indicate that sandfly fever did diminish isometric strength during fever as well as cause a marked effect upon the ability and/or willingness of some individuals to perform exercise at gradually increasing intensity. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 23, 1982
- Accession Number
- ADA121512
Entities
People
- D. S. Sharp
- J. A. Vogel
- J. E. Wright
- J. J. Knapik
- W. L. Daniels
Organizations
- United States Army Research Institute of Environmental Medicine