Changes in Systolic Blood Pressure during Isometric Contractions of Different Size Muscle Groups.
Abstract
The systolic blood pressure responses to sustained 40% maximal voluntary index finger adduction and handgrip contractions were characterized for 21 male subjects. Using the systolic blood pressure measurements and the corresponding times at which they were taken, regression lines were calculated which illustrated the changes in systolic pressure with respect to time. The slope of the regression line representing the mean response to the larger muscle mass (.287) was significantly steeper (p less than .001) than that for the smaller mass (.052). The literature reviewed prior to conducting this study suggested that the systolic blood pressure response to isometric exercise is dependent on percent of maximal voluntary strength and independent of the size of the contracting muscle mass. The results of this study indicated that the size of the contracting muscle mass does influence the systolic blood pressure response to a sustained isometric contraction. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1979
- Accession Number
- ADA107968
Entities
People
- Joe A. Buck
Organizations
- Air Force Institute of Technology