Evaluation of microvolt T wave alternant as an index to determine exercise intensity for fat-children

Objective:To evaluate whether microvolt T wave alternant could be considered as an index to make a suitable exercise intensity for fat-children.Methods:Children were divided into two groups:36 in normal weight group and 28 in obesity group.Blood glucose,blood fat,blood pressure,height and weight was measured and MTWA were measured through exercise testing with Bruce protocol.Results:No difference of blood pressure and blood glucose between the two groups,but the level of blood cholesterol in normal-weight group is higher than that in obesity group,however,the level of high density lipoproteins is lower.The incidence of MTWA is very higher in obesity group than that in normal weight group(63%vs 25%):the heart rate is lower when MTWA occurred compared to that of maximal exercise test in obesity group.Conclusions:MTWA occurred in a low heart rate in obesity children group means that an individual sports program should be made for fat-children in order to avoid being impaired in physical exercise.