High intensity training load impact to muscle oxigenation and concentration of lactate in kayak elite athletes

Abstract

Purpose: to disclose the changes of muscle oxygenation and concentration of lactate in elite kayak athletes during HIT load. Methods: Two world class kayak athletes were participated in this study. Athletes’ aerobic capacity, muscle oxygenation, heart rate and concentration of lactate were determined. Athletes performed two different physical exercises. Results: The process of oxygenation was very intense during special exercise, which were applied, in the muscles of the leg and chest of elite kayak athletes. It depended on the intensity and duration of physical work. Working at high intensity, the oxygen in the leg muscles decreases even more than in the chest muscles. It was observed that when kayakers performed repetitive exercises (6 times for 6 min at 220 W with rest for 6 min) and repeated repetitive exercises of the same volume, (6 times worked after 6 min resting between sections for 6 min. However, during 6 min of work he performed physical work capacity at 320 W interval special exercise for 15 s and working lightly at 100 W for 45 s). The concentration of lactate in the arterial blood of the kayak athletes increased equally. Conclusions: The study reveals the importance of leg muscles work, for kayakers working at very high power, close to critical intensity. Thus, with the aim of bringing the muscle control and physical load capacity of kayak athletes closer to the competitive level, it is appropriate to apply short high-intensity interval work. There is the scientific interest to apply such research to a wider contingent of athletes; it can bring practical benefits to the training of athletes.