Walking uphill and downhill can be challenging for community-dwelling old adults. We
investigated the effects of age on leg muscle activity amplitudes and timing during level …

We sought to gain insight into age-related muscular limitations that may restrict the uphill
walking ability of old adults. We hypothesized that:(1) old adults would exhibit smaller peak …

Advanced age brings biomechanical changes that may limit the uphill and/or downhill
walking ability of old adults. Here, we investigated how advanced age alters individual leg …

Compared to level walking, additional muscle actions are required to raise and lower the
center of mass during uphill and downhill walking, respectively. However, it remains unclear …

Purpose: The metabolic cost of walking is greater in old compared to young adults. This
study examines the relation between metabolic cost, muscular efficiency, and leg muscle co …

Previous studies have identified differences in gait kinetics between healthy older and
young adults. However, the underlying factors that cause these changes are not well …

Older adults commonly report muscle fatigue, which may be associated with reduced
walking ability. Elderly may have insufficient awareness of the balance threat caused by …

Objective: the present study investigated the effects of walking under different challenges
and kinematics and kinetics generated during these activities and how these vary with age …

Methods Bilateral ground reaction force and marker data were collected from healthy young
(age= 22.5 yr, n= 18) and older (age= 76.0 yr, n= 22) adults walking on a split-belt …

Background. The net metabolic cost of walking (Cw) as well as the level of neural activation
of agonist and antagonist leg muscles are higher in healthy old compared with young adults …