2009, Volume 5
Correlation between Heart Rate on Morning Rising and Condition of Judo Players during Training Camp
Akitoshi Sogabe1, Taketo Sasaki2, Mitsuharu Kaya3, Kosuke Nagaki4, Shunsuke Yamasaki1
1Education and Research Center for Sport and Health Science, Konan University, Kobe, Kobe, Japan
2Faculty of Human Development and Culture, Department of Physical Education, Fukushima University, Fukushima, Fukushima, Japan
3Liberal Arts Center, Hyogo University of Health Sciences, Kobe, Kobe, Japan
4Faculty of School Education, Hyogo University Teacher Education, Kato, Katō, Japan
Author for correspondence: Akitoshi Sogabe; Education and Research Center for Sport and Health Science, Konan University, Kobe, Kobe, Japan; email: sogabe[at]konan-u.ac.jp
Background and Study Aim: We attempted to determine whether measurement of heart rate on rising can be used as a simple method for assessing physical and mental conditioning.
Material and Methods:The subjects for this study were 11 male Japanese college Judo players (age: 20.5±1.4 years) who visited the United States to compete. The investigation period was 8 days. Each subject was asked to record heart rate and sleep length, evaluate his physical and mental conditions, and complete a POMS questionnaire every morning on rising. The days with the highest and lowest heart rates were extracted from the recorded data for each subject, and the sleep length, physical and mental conditions, and POMS scores on those days were compared.
Results: Correlation coefficients between heart rate and each of the factors exhibiting significant differences were calculated. Negative correlations were found for sleep length (r=-0.678, p<0.001), physical condition (r=-0.657, p<0.001) and mental condition (r=-0.577, p=0.004) while positive correlations were found for POMS scales of Fatigue (r=0.468, p=0.026) and Confusion (r=0.506, p=0.015).
Conclusions: Although psychological condition tends to be considered less serious than physical condition, poor psychological conditioning can cause such problems as lack of sleep, which can lead to an imbalance of the autonomic nervous system and eventually to impairment of physical condition. It may also be possible to develop players’ interest in and habit of managing their condition on their own by promoting them to undertake such activities as measuring their heart rate.
Key words: mental condition, overtraining, physical condition, poms