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Association between heart rate variability and training response in sedentary middle-aged men

  • Stephen H. Boutcher
  • Phyllis Stein
Original Article

Abstract

The effect of exercise training on heart rate variability (HRV) and improvements in peak oxygen consumption (\(\dot V{\text{O}}_{\text{2}} \)peak) was examined in sedentary middle-aged men. The HRV and absolute and relative\(\dot V{\text{O}}_{\text{2}} \)peak of training (n = 19) and control (n = 15) subjects were assessed before and after a 24-session moderate intensity exercise training programme. Results indicated that with exercise training there was a significantly increased absolute and relative\(\dot V{\text{O}}_{\text{2}} \)peak (P < 0.005) for the training group (12% and 11% respectively) with no increase for the control group. The training group also displayed a significant reduction in resting heart rate; however, HRV remained unchanged. The trained subjects were further categorized into high (n = 5) and low (n = 5) HRV groups and changes in\(\dot V{\text{O}}_{\text{2}} \)peak were compared. Improvements in both absolute and relative\(\dot V{\text{O}}_{\text{2}} \)peak were significantly greater (P > 0.005) in the high HRV group (17% and 20% respectively) compared to the low HRV group (6% and 1% respectively). The groups did not differ in mean age, pretraining oxygen consumption, or resting heart rate. These results would seem to suggest that a short aerobic training programme does not alter HRV in middle-aged men. Individual differences in HRV, however, may be associated with\(\dot V{\text{O}}_{\text{2}} \)peak response to aerobic training.

Key words

Heart rate variability Aerobic training Peak oxygen consumption 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Stephen H. Boutcher
    • 1
  • Phyllis Stein
    • 2
  1. 1.Department of Biomedical ScienceUniversity of WollongongWollongongAustralia
  2. 2.Washington University Medical CenterSt. LouisUSA

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