고지훈련이 수영선수의 유산소능력에 미치는 영향 = The Effect of High Altitude Tranining on the Aerobic Capacity of Swimmers

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the effect of high altitude training on the aerobic capacity of swimmers. Subjects were 10 swimmers(m=5, f=5) and were trained for three weeks. Eight swimmers were classified into the training group(TG) and two swimmers into the control group(CG).
The assessment was conducted before and after the training. The number of red blood cell, the hemoglobin concentration, the blood composites of hematocrit at rest were measured. Also the maximal oxygen uptake by the piecemeal workload, blood lactate concentration at the submaximal workload, and the maximum blood lactate concentration after the all-out exercise. The results were as follows:

1) The increase rates of RBC of TG were 5.4% for male and 5.7% for female. For CG, it was -1.4%.
2) The increase rates of hemoglobin of TG were 2.8% for male and 1.9% for female. For CG, it was -6.5%.
3) The increase rates of hematocrit of TG were 2.4% for male and 2.0% for female. For CG, it was -0.7%.
4) The increase rates of maximal oxygen uptake of TG were 8% for male and 5% for female. For CG, it was 1%.
5) The change rates of blood lactate concentration at the maximum workload of TG were -7% for male and -14% for female. For CG, it was -13%.
6) The change rates of maximal blood concentration of TG were -17% for male and 1% for female. For CG, it was -1%.
7) The blood lactate recovery rates of TG were 13% for male and 5% for female. For CG, it was 5%.

Based on these results, the following conclusions were made.
1) The three-weeks high altitude training seemed to contribute to the positive change of the blood composites related to the oxygen delibering capacity of swimmers.
2) The training also seemed to cause the increasement of the maximal oxygen uptake capacity of swimmers.
3) These effects seemed to be maintained for about two weeks after returning to the surface level.