运动技能障碍(Motor skills disorder)
A. Performance in daily activities that require motor coordination is substantially below that expected given the person's chronological age and measured intelliagence. This may be manifested by marked delays in achieving motor milestones (e.g., walking, crawling, sitting), dropping things "clumsiness", poor performance in sports, or poor handwriting.
在日常活动中所需要的运动技能大大地低于本人相应年龄和智商应该达到的水平.这种明显的不足使得本人无法正常行走,爬行,坐立,抓握,书写等.

B. The distubance in criterion A significantly interferes with academic achievement or activities of daily living.
以上的困难严重影响文化学习和日常生活.

C. The disturbance is not due to a general medical condition (e.g., cerebral palsy, hemiplegia, or muscular dystrophy) and does not meet criteria for a pervasive developmental disorder.
以上困难不是由于一些疾病引起,比如脑瘫,偏瘫,肌肉萎缩.

D. If mental retardation is present, the motor difficulties are in excess of those usually associated with it.
如果本人还伴有智力障碍,那么以上的运动技能障碍超过了因智力障碍所致的程度.