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 …

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 …

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 …

The ability to adapt to environmental and task demands while walking is critical to
independent mobility outside the home and this ability wanes with age. Such adaptability …

The authors elucidated functional limitations in older adult gait by increasing horizontal
impeding forces and walking speed to their maximums compared with dynamometry and …

The prevalence of mobility impairment among old adults (older than 65 yr) is profound; 17%,
28%, and 47% of people aged 65–74, 75–84, and older than 85 years, respectively, report …

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 …

Transient symptoms of muscle damage emanating from unaccustomed eccentric exercise
can adversely affect muscle function and potentially increase the risk of falling for several …

The objective of this study was to investigate the effects of age and speed on body center of
mass (COM) motion over a gait cycle. Whole body kinematics and ground reactions were …

Previous studies of the mechanical work performed during uphill and downhill walking have
neglected the simultaneous negative and positive work performed by the leading and …