Effects of Voluntary Apnea on Haemodynamic Responses during Groundwork Techniques of Judo ()
Affiliation(s)
1Effort Laboratory of Physiology, Biomechanics, Superior Institute of Physical Education, University Marien NGOUABI, Brazzaville, Congo.
2Division of Research, Documentation and the Files, National Institute of Youth and Sports, Brazzaville, Congo.
3Laboratory of Nutrition, Health and Human Motricity, Superior Institute of Physical Education, University Marien NGOUABI,
Brazzaville, Congo.
ABSTRACT
Context: Several studies were conducted on physiology of apnea in scuba diving. No survey has been reported in fighting sports. Objective: To evaluate cardiovascular variations misled by voluntary apnea during groundwork techniques of judo training. Methods: The temporal evolution of heart rate and modifications of the blood pressure have been investigated during cross sectional and experimental study. A total of 28 Congolese judoists took part in the study. The voluntary apnea was achieved by a judoist to try to carry out two kinds of groundwork (hon-gesagatame and kamishiho-gatame). According to the case, Student t test and analysis of variance were used for comparing data. Multivariate analysis was used to evaluate the effect of “type of groundwork technique × category of weight”. Results: Between 0 and 3 seconds, tachycardia has been observed during the static groundwork techniques and then bradycardia occurred to 3 - 9 seconds for the dynamic groundwork techniques : +6.8% of the rest frequency versus -9.4% for hon-gesa; +4.9% versus -13.7% for kami-shiho. Thereafter, it followed a fluctuation of heart rate of 9 - 15 seconds. Beyond, a stagnation was noted for hongesa, whereas a minimal increase (<5%) for kami-shiho. In relation to the systolic arterial pressure, a meaningful rise was recovered: +46.5% (hon-gesa) versus +50.1% (kami-shiho) in static exercise; +43.4% (hon-gesa) versus +43.3% (kami-shiho) in dynamic exercise. The report was similar for the diastolic arterial pressure: +31.5% (hon-gesa) versus 30.0% (kami-shiho) in static exercise; +20.3% (hon-gesa) versus +23.8% (kami-shiho) in dynamic exercise. Conclusion: The apnea consecutive to the hindrance of an exit groundwork technique to judo drags bradycardia increased while exercise realized static posture, and a rise of the arterial pressure.
Share and Cite:
Moulongo, J. , Massamba, E. , Massamba, A. and Tchissambou, B. (2016) Effects of Voluntary Apnea on Haemodynamic Responses during Groundwork Techniques of Judo.
World Journal of Cardiovascular Diseases,
6, 300-311. doi:
10.4236/wjcd.2016.69034.