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Related Experiment Video

Updated: Jan 22, 2026

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
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Interlimb Coordination During a Combined Gait and Prehension Task.

Grace C Bellinger1, Kristen A Pickett1, Andrea H Mason1

  • 1University of Wisconsin-Madison.

Motor Control
|July 20, 2019
PubMed
Summary
This summary is machine-generated.

Coordinating walking and reaching is complex. This study found significant variability in how individuals combine these tasks, suggesting separate motor control mechanisms for walking and grasping.

Keywords:
footednessreachingwalking

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Area of Science:

  • Neuroscience
  • Biomechanics
  • Motor Control

Background:

  • Reaching and grasping during locomotion are common but poorly understood.
  • Previous research on limb coordination during combined tasks yielded conflicting results.

Purpose of the Study:

  • To investigate interlimb coordination during a combined walking and reach-to-grasp task.
  • To determine if walking and reaching modify each other or if reaching is superimposed on normal gait.

Main Methods:

  • 18 healthy young adults performed a reach-to-grasp task while walking and standing.
  • Gait parameters (speed, step length, double support time) and grasp aperture were measured.
  • Lower limb support preferences during reach initiation and object contact were analyzed.

Main Results:

  • Participants walked slower, took shorter steps, and increased double support time during the combined task.
  • Peak grasp aperture was larger when reaching while walking compared to standing.
  • No consistent lower limb support preference was observed during reach initiation or grasp.

Conclusions:

  • The combined task altered gait parameters and grasp characteristics.
  • Significant variability in interlimb coordination patterns was observed among participants.
  • Findings support the two primitives theory, suggesting separate motor control for walking and prehension.