The objective of the present study was to assess the power and anaerobic capacity in 17-18-year old rower with the use of interval exercise. Conclusion: The interval training performed on rowing cycle ergometer (4x500m) allows for an effective diagnostics of the level of anaerobic endurance in rowers. During the exercise a complete depletion of available substrates of anaerobic metabolism (glycogen) takes place which is reflected by increased level of lactate concentration after the II exercise (up to 90-95% of maximal value). reduced value of RQ from 1.15 down to 0.98 and in drop in power and total work performed at constant consumption of oxygen [Brooks. Fahey 1985]. Analysis of obtained results shows that 4x500m exercise may be useful in assessment of changes of rowers' anaerobic metabolism in training cycle. The maintenance of values of parameters characteristic for anaerobic metabolism in III and IV exercise would indicate the development of this physical capacity sphere in a given rower. The limitation of abilities for maintenance of high values of RQ. P. W as well as low consumption of oxygen and reaching of maximal value of lactate after the I interval exercise would indicate reduced capability for continuation of work based on anaerobic metabolism.
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