@article{oai:nagoya.repo.nii.ac.jp:02005863,
 author = {TSUKAHARA, R. and AOKI, H. and YABE, K.},
 issue = {1},
 journal = {総合保健体育科学, Nagoya Journal of Health, Physical Fitness & Sports},
 month = {Mar},
 note = {Developmental changes in motor time of mentally retarded children were studied in connection with PSP appearance in agonist muscle. Forty one out of 55 subjects exhibited PSP during jumping reaction movements, and 14 subjects did not exhibit PSP. Among subjects exhibiting PSP, motor time shortened with increasing MA. Subjects exhibiting no PSP did not show any MA-related changes in motor time. It is suggested that acquistition of PSP and cognitive development contribute to shortening of motor time.},
 pages = {33--35},
 title = {Effects of PSP Appearance on Development of Motor Time in Mentally Retarded Children},
 volume = {13},
 year = {1990}
}