Characteristic of children with developmental disabilities with respect to physical fitness and physiological stress.

发育障碍儿童（CDD）通常身体笨拙。我们推测，这种身体笨拙的原因是肌肉紧张和弱动机的心理社会压力伴随着发展障碍。为了验证这一假设，我们测定了CDD患者的体能和尿应激激素。CDD组与正常对照组相比，尿应激激素水平有差异，但在体能方面无差异。这些结果并没有阐明CDD的身体素质和生理应激的特点，但表明CDD在生理应激状态下不同于神经型同龄人。

Children with developmental disabilities(CDD) are often physically clumsy. We hypothesized that the reasons of this physically clumsy is muscle tonus and the weak motivation by psychosocial stress accompany developmental disabilities. To verify the hypothesis, we measured the physical fitness and urinary stress hormone in CDD. CDD were different in urinary stress hormone state compared to neurotypical peers, but not different in physical fitness. These results did not clarify the characteristic of physical fitness and physiological stress in CDD, but suggest that CDD are not similar to neurotypical peers in physiological stress state.