The impact of endurance exercise on the cardiovascular capacity of a male amateur cross country skier. Pilot study
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The purpose of physical training is to achieve the maximum capacity of the body. These changes are caused by numerous adaptive mechanisms taking place in the circulatory-respiratory, muscular, nervous, hormonal, and immunological systems, as well as in the mass and composition of the body. They are most visible in athletes of endurance disciplines such as cross-country skiing, skiing, long-distance running, roller skiing, triathlon or cycling. These disciplines are characterized by long-term effort and the highest intensity. This applies to both athletes and amateurs. The aim of the study was to assess the impact of physical activity during the period of main preparations on the circulatory and respiratory parameters of amateurs practicing cross-country skiing. This study was a pilot, and show the results of the assessment of the case. The purpose of this retrospective case study was to describe changes in cardiovascular endurance within three months of a male amateur cross country skier. This study was based on the analysis of training registration, ergospirometry test (treadmill test) results and body composition measurements. The results showed an increase in maximum oxygen uptake, a shift of the lactate threshold towards higher loads and a reduction in body weight. This parameter was lower than the performance of highly qualified competitors, but the individual changes between the first measurement and the second were similar. Monitoring and evaluation of these changes are mandatory in the training process, also in amateur sport. It helps to counteract states of fatigue, overtraining and designing pro-health training loads. In addition, they can provide protection for the health of those who make the marathon and ultra- marathon efforts. The popularity of ski marathons is growing. Assessment of participants' exercise capacity can be used to plan training and comparison with professionals.
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