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Research Article  |   January 1989
Heart Rate, Activity, Duration, and Affect in Added-Purpose Versus Single-Purpose Jumping Activities
Author Affiliations
  • Marti W. Bloch, MS, OTR, is a staff therapist at Kalamazoo Regional Psychiatric Hospital, Kalamazoo, Michigan. At the time of this study, she was a graduate student at Western Michigan University
  • Doris A. Smith, MEd, OTR, FAOTA, is Professor, Department of Occupational Therapy, Western Michigan University, Kalamazoo, Michigan 49008-3899
  • David L. Nelson, PhD, OTR, FAOTA, is Associate Professor and Graduate Coordinator, Department of Occupational Therapy, Western Michigan University, Kalamazoo, Michigan
Article Information
Musculoskeletal Impairments / Features
Research Article   |   January 1989
Heart Rate, Activity, Duration, and Affect in Added-Purpose Versus Single-Purpose Jumping Activities
American Journal of Occupational Therapy, January 1989, Vol. 43, 25-30. doi:10.5014/ajot.43.1.25
American Journal of Occupational Therapy, January 1989, Vol. 43, 25-30. doi:10.5014/ajot.43.1.25
Abstract

This research replicates and extends an occupational therapy research project reported by Kircher in 1984. Thirty women aged 18 to 31 years jumped with a rope on one day and jumped in place on another day in a counterbalanced design. Each subject stopped jumping when she reached what she perceived as the very hard level on the Borg Scale of Perceived Exertion (Borg, 1970). Differences from Kircher’s design included an imposed target zone formula for safe maximum exertion, use of a portable, more easily read heart rate monitor (Exersentry, Model 3), use of the Osgood Semantic Differential to measure affective meanings, and asking the subjects to identify the type of jumping they preferred. Data analysis supported Kircher’s finding that at the given rate of perceived exertion, heart rate increase after jumping rope was significantly higher (p = .01) than after jumping without a rope. The difference in duration of jumping approached significance (p = .06), but in the direction opposite to what Kircher found. There were no significant differences in affective meanings or preference. Results are discussed in terms of the need for a growing body of occupational therapy literature in regard to the purposefulness of activities.