A test of the strength of children's hip and knee extensors found that children who were congenitally blind or had low vision had weaker knee extensors than did sighted children, but that after the correction for lean body weight (LBW), these differences were not significant. The children who were blind or had low vision also had weaker hip extensors, but after LBW correction, only the blind children's hip extensors were weaker than those of the children with normal vision. The findings indicate that congenitally blind children may be prone to develop weak leg extensors because of poor body build or the constraints of blindness and that they require extensive physical intervention during infancy.
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References
1.
AdelsonE., & FraibergS. (1976). Sensory deficit and motor development in infants blind from birth. In JastrzembrskaZ. (Ed.), The effects of blindness and other impairments on early development (pp. 1–15). New York: American Foundation for the Blind.
2.
GeorgeC., PattonR., & PurdyD. (1975). Development of an aerobics conditioning program for the visually handicapped.Journal of Physical Education and Recreation, 46, 39–40.
3.
HartV. (1984). Research as a basis for assessment and curriculum development for visually impaired infants.Journal of Visual Impairment & Blindness, 78, 314–318.
4.
JanJ., RobinsonG., ScottE., & KinnisC. (1975). Hypotonia in the blind child.Developmental Medicine and Child Neurology, 17, 35–40.
5.
JanowskiL., & EvansJ. (1981). The exercise capacity of blind children.Journal of Visual Impairment & Blindness, 75, 248–281.
6.
LieberR. (1992). Skeletal muscle structure and function.Baltimore: Williams & Wilkins.
7.
MurphyF., & O'DriscollM. (1989). Observations on the motor development of visually impaired children: Interpretations from video recordings.Physiotherapy, 75, 505–508.
8.
NorrisN., SpauldingP., & BrodieF. (1957). Blindness and children.Chicago: University of Chicago Press.
9.
ParizkovaJ. (1961). Total body fat and skinfold thickness in children.Metabolism, 10, 794–801.
10.
ParkerD., RoundJ., SaccoP., & JonesD. (1990). A cross-sectional survey of upper and lower limb strength in boys and girls during childhood and adolescence.Annals of Human Biology, 17, 199–211.
11.
SchneeklothL., & DayD. (1980). Comparison of environmental interactions and motor activity of visually handicapped and sighted children. (ERIC Document Reproduction Service No. ED 210876)
12.
SeelyeW. (1983). Physical fitness of blind and visually impaired Detroit public school children.Journal of Visual Impairment & Blindness, 77, 117–118.
13.
SiriW. (1956). Body composition from fluid spaces and density.Berkeley: University of California Press.
14.
SonksenP., LevittS., & KitsingerM. (1984). Identification of constraints acting on motor development in young visually disabled children and principles of remediation.Child: Care, Health and Development, 10, 273–286.
15.
StackD., & MinnesP. (1989). Aberrant motor development in three disabilities: Directions for research and practice.Early Child Development and Care, 43, 1–14.
16.
SykandaA., & LevittS. (1982). The physiotherapist in the developmental management of the visually impaired child.Child: Care, Health and Development, 8, 261–270.
