The purposes of this study were 1) to determine changes of blood lactate concentration during incremental treadmill exercise for the training and non-training groups; 2) to investigate the concentration of blood lactate disappearance from recovery pat...
The purposes of this study were 1) to determine changes of blood lactate concentration during incremental treadmill exercise for the training and non-training groups; 2) to investigate the concentration of blood lactate disappearance from recovery patterns after treadmill exercise ; 3) to analyze changes of plasma epinephrine(Ep) and norepinephrine(Nep) during exercise and recovery.
The subjects were consisted of 16 college women (7 basketball athletes and 9 non-trained students) with the mean age of 22 years who are following at Physical Education department in S womens university.
The results are :
1) Blood lactate concentration during 6, 8, 10, and 12 min of incremental maximal exercise load were significantly (p<.05) low in training group compare to non-training group. 2) Blood lactate concentrations at recovery after a brief period of maximal exercise load was found to be significantly low (p<.01) in training group compared to non-training group. 3) Recovery rate of blood lactate after a brief period of maximal exercise load was significantly high(p<.05) in active recovery method compared to passive recovery method. 4) There was no significant change in plasma Ep for training and non-training groups at passive and active recovery after a brief period of high relative intensity exercise load. However, plasma Ep was significantly low(p<.05) in training group compared to non-training group. 5) There was no significant change in plasma Nep for training and non-training groups at passive and active recovery after a brief period of high relative intensity exercise load. However, no significant difference was found in plasma Nep between training and non-training groups. 6) There was no difference in Ep and Nrep after a brief period of high relative intensity exercise load for active and passive recovery respectively. 7) No relationship could be observed between Ep and Nrep concentration and maximal capillary blood lactate values after a brief period of high relative intensity exercise load.
In conclusion, blood lactate concentration were significantly low in training group during absolute exercise load compared to non-training group. Recovery of blood lactate concentration after exercise was also faster in training group compared to non-training group. Especially, active recovery at rest was found to be more effective blood lactate disappearance. There was no change in Ep and Nep after a brief period of high relative intensity exercise load. Concentration of Ep and Nep were not affected by recovery method and it did not show any evidence of influence from blood lactate concentration.