Aerobic capacity and force-velocity characteristics in cross-country skiers at the end of preparatory period and at the beginning of period of competitions
- Authors: Butkov A.D.1, Lysenko E.A.1, Lemesheva Y.S.1, Ustyuzhanin D.V.2, Grushin A.A.3, Vinogradova O.L.1, Popov D.V.1
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Affiliations:
- Institute of Biomedical Problems
- Russian Cardiology Research and Production Complex
- Russian Olympic Committee
- Issue: Vol 43, No 3 (2017)
- Pages: 285-290
- Section: Article
- URL: https://journals.rcsi.science/0362-1197/article/view/177182
- DOI: https://doi.org/10.1134/S0362119717030045
- ID: 177182
Cite item
Abstract
The goal of this study is to compare the dynamics of aerobic and force–velocity characteristics of the shoulder girdle muscles and leg muscles during high-volume aerobic training in junior cross-country skiers in the time interval from the end of the preparatory period to the beginning of the competition period. Eleven junior cross-country skiers were repeatedly tested from December to February. In this period, the volume of aerobic training was 22–23 h per week. During the experimental period, the knee extensors torque in the range of angular velocities of 30–300 degrees/s was observed to decrease, with no changes in the volume of the quadriceps muscle of thigh and knee flexor muscles. The maximal oxygen consumption rate (VO2 max) was observed to decrease by 6% (P < 0.05) in the treadmill test, while the oxygen consumption at anaerobic threshold (VO2 at La = 4 mmol/L) was unchanged. On the contrary, the functional capacity of the shoulder girdle muscles was enhanced. The force-velocity characteristics of the shoulder girdle muscles that were estimated in the maximal anaerobic power test at a double poling ergometer increased by 16% (P < 0.01), and the volume of the triceps muscle of arm increased by 4.6 (P < 0.01). The aerobic capacity of the shoulder girdle muscles that were estimated by the VO2 at La = 4 mmol/L increased by 30% (P < 0.05). The potential for increasing the performance of junior cross-country skiers seems to be associated with the increased functional capacity of the shoulder girdle muscles.
About the authors
A. D. Butkov
Institute of Biomedical Problems
Email: danil-popov@yandex.ru
Russian Federation, Moscow
E. A. Lysenko
Institute of Biomedical Problems
Email: danil-popov@yandex.ru
Russian Federation, Moscow
Yu. S. Lemesheva
Institute of Biomedical Problems
Email: danil-popov@yandex.ru
Russian Federation, Moscow
D. V. Ustyuzhanin
Russian Cardiology Research and Production Complex
Email: danil-popov@yandex.ru
Russian Federation, Moscow
A. A. Grushin
Russian Olympic Committee
Email: danil-popov@yandex.ru
Russian Federation, Moscow
O. L. Vinogradova
Institute of Biomedical Problems
Email: danil-popov@yandex.ru
Russian Federation, Moscow
D. V. Popov
Institute of Biomedical Problems
Author for correspondence.
Email: danil-popov@yandex.ru
Russian Federation, Moscow