title: Comparison of heart rate response to tennis activity between persons with and without spinal cord injuries: implications for a training threshold.
abstract: The purpose of this study was to evaluate the ability of individuals with spinal cord injury (SCI) to reach a training threshold during on-court sport activity. Monitors collected heart rate (HR) data every 5 s for 11 wheelchair tennis players (WCT) with low paraplegia and 11 able-bodied controls matched on experience and skill level (ABT). Average HR was determined for time spent in practice (e.g, drills) and game (i.e., a competitive set), and the ability to surpass 50% peak HR (HRpeak) and 64% HRpeak in each condition was evaluated. Average exercise intensity (%HRpeak) was not significantly different between the groups during practice (M WCT = 68.18, SD = 7.53%, M ABT = 68.78, SD = 5.44%; t = .22, p = .83) or game (M WCT = 68.17, SD = .17%, M ABT = 71.55, SD = 4.75%; t = 1.12, p =.28). Allparticipants averaged an intensity > or = 50% HR-peak during practice and game, and the difference between group participants averaging an intensity > or = 64% HRpeak was not significant during practice (chi2 = .92, p = .34) or game (chi2 = 3.85, p = .05). In terms of reaching a health and fitness training threshold during tennis, individuals with low-level SCI are similar to matched controls.
authors.affiliation: Department of Exercise Science, Physical Education, and Wellness, Tennessee Tech University, Cookeville, TN 38505, USA. jpbarfield@tntech.edu
authors.forename: J P
authors.initials: JP
authors.lastname: Barfield
authors.forename: Laurie A
authors.initials: LA
authors.lastname: Malone
authors.forename: Tristica A
authors.initials: TA
authors.lastname: Coleman
mesh_terms: D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D002319:Cardiovascular System; D016022:Case-Control Studies; D002648:Child; D006233:Persons with Disabilities; D005081:Exercise Therapy; D017079:Exercise Tolerance; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D013119:Spinal Cord Injuries / Q000503:physiopathology* / Q000534:rehabilitation; D013715:Tennis / Q000502:physiology*; D014910:Wheelchairs; D055815:Young Adult