Visual deprivation leads to gait adaptations that are age- and context-specific: I. Step-time parameters

Ann Hallemans1, Sofie Beccu, Kelly Van Loock

  • 1Research Group of Functional Morphology, University of Antwerp, Belgium. ann.hallemans@ua.ac.be

Gait & Posture
|April 4, 2009
PubMed

Insights

Visual information is vital for balance and walking. Closing eyes impacts gait more in children than adults, suggesting vision

Area of Science:

  • Developmental neuroscience
  • Biomechanics
  • Human motor control

Background:

  • Vision plays a key role in maintaining postural control.
  • Age-related differences exist in how visual disturbances affect balance.

Purpose of the Study:

  • To investigate age-related differences in the impact of visual deprivation on dynamic stability and gait.
  • To explore the relationship between postural sway and gait parameters under altered visual conditions.

Main Methods:

  • Tested postural stability and gait in 40 children (3-11 years) and 20 adults.
  • Compared performance with eyes open (EO) versus eyes closed (EC).

Main Results:

  • Visual deprivation (EC) significantly affected postural sway, walking speed, stride length, and double support duration in both children and adults.
  • The reduction in walking speed with eyes closed was more pronounced in children than adults.
  • Correlations were found between postural sway and gait parameters like walking speed, step frequency, and stride length.

Conclusions:

  • Visual deprivation impacts locomotion in both children and adults.
  • Children's gait is more sensitive to visual deprivation than adults', highlighting vision's importance for their dynamic stability.
  • Gait adaptations during visual deprivation are linked to underlying balance challenges.