with their environment develop in this period. Delayed
motor development is of particular importance because
it may cause delay in acquiring some skills in cogni-
tive, emotional, and social areas [0–0]. In children with
DS, hypotonia, ligament laxity, joint instability, muscle
weakness, and issues of balance and coordination mech-
anisms cause delays in motor development [0, 0, 00].
Mean age and age range of walking among typically de-
veloping children are, respectively, 00 months and 0–00
months, whereas 00 months and 00–00 months in chil-
dren with DS