Relationship of serum lactate and glucose with oxygen saturation, heart rate and VO 2 max in response to L-carnitine during exhaustive exercise in active young men
The aim of this study was to investigate the relationship between the serum level of lactate and glucose with oxygen saturation, maximal heart rate and VO 2 max in response to L-carnitine during exhaustive exercise in young active men. Materials and Methods: In this study, 10 young men (age: 26.4±0.96 years, height: 173.9±9.45 cm and weight: 71.8±5.36 kg) were participated. The subjects performed two sessions of the Bruce test. Serum levels of lactate, glucose, oxygen saturation (%SO 2), VO 2
... ion (%SO 2), VO 2 max, HRmax were recorded before, immediately and 4min after the exhaustive exercise. Results: The results showed that in the supplement group there was a significant relationship between the serum levels of lactate and VO 2 max 4min after the termination of the exercise. Also, there was a significant relationship between the serum levels of glucose and %SO 2 immediately after the exercise (P<0.05). There was no significant relationship between the other factors. Conclusions: According to the results of this study, the L-carnitine supplementation has positive effects on the relationship between serum levels of lactate with VO 2 max and serum levels of glucose and %SO 2 immediately after the exhaustive exercise. So, the L-carnitine supplementation through increasing the exhaustion threshold has a significant effect on aerobic power in performing the intensive exhausting activities.