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Selection of Suitable Maximum-heart-rate Formulas for Use with Karvonen Formula to Calculate Exercise Intensity |
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| Authors: | Jinhua She Hitoshi Nakamura Koji Makino Yasuhiro Ohyama Hiroshi Hashimoto |
| Affiliation: | 1 Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan; 2 Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi, 4-3-11, Takeda, Kofu 400-8511, Japan; 3 Master Program of Innovation for Design and Engineering, Advanced Institute of Industrial Technology, 1-10-40 Higashiooi, Shinagawa-ku, Tokyo 140-0011, Japan |
| Abstract: | The Karvonen formula, which is widely used to estimate exercise intensity, contains maximum heart rate, HRmax, as a variable. This study employed pedaling experiments to assess which of the proposed formulas for calculating HRmax was the most suitable for use with the Karvonen formula. First, two kinds of experiments involving an ergometer were performed: an all-in-one-day experiment that tested eight pedaling loads in one day, and a one-load-per-day experiment that tested one load per day for eight days. A comparison of the data on 7 subjects showed that the all-in-one-day type of experiment was better for assessing HRmax formulas, at least for the load levels tested in our experiments. A statistical analysis of the experimental data on 47 subjects showed two of the HRmax formulas to be suitable for use in the Karvonen formula to estimate exercise intensity for males in their 20 s. In addition, the physical characteristics of a person having the greatest impact on exercise intensity were determined. |
| Keywords: | Borg CR10 scale Karvonen formula exercise intensity maximum heart rate pedaling statistical analysis |
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