Dataset for "The Effects of Plantarflexor Weakness and Reduced Tendon Stiffness with Aging on Gait Stability"

The purpose of this study was to investigate the effects of plantarflexor strength and Achilles tendon stiffness on gait stability during perturbed treadmill walking in older and younger adults. Using inverse kinematics, whole-body angular momentum and margins of stability were calculated to describe distinct features of gait stability. Our results indicate greater plantarflexor strength among older adults associated with lesser gait instability, particularly in the lateral direction. We believe these discoveries demonstrate factors modifiable through training that may enhance older adults’ ability to mitigate balance challenges, potentially reducing falls risk and fall-related injuries.