Effect of Short-term Detraining on Glucose Tolerance in Basketball Players

Abstract

Since body composition or fat storage is considered as an important confounding factor to glucose tolerance, it is unclear whether short-term detraining may influence these factors. This study was aimed to investigate the effect of 10-day detraining on glucose tolerance and creatine kinase in female basketball players. Thirteen female elite basketball players aged 18±0.27 yrs participated in this study. Oral glucose tolerance test and blood creatine kinase were monitored during training, after competition and 10-day after the last training bout. Fasting glucose was significantly (p＜.05) increased after 10-day detraining. Following 75-gram of oral glucose ingestion blood glucose values were also elevated significantly (p＜.05) after 10-day detraining at 50 min and 80 min time points. Blood creatine kinase was 60% greater in trained state than in detrained state, which suggests that greater muscle damage during training. The glucose values at 30 min during OGTT was associated with BMI in trained state (r=0.61, p＜.05), but no relationship between four-point glucose level during OGTT and BMI in detrained state. These data concludes that the reduction of glucose tolerance following 10-day detraining was not associated with BMI and muscle damage in female basketball players.