Margin-of-stability (MoS) and whole-body angular momentum (WBAM) are two commonly used laboratory-based measures for assessing dynamic balance [1]. Interestingly, it has been reported that a higher MoS and a higher peak-to-peak range of WBAM during walking were associated with a poorer balance ability in individuals with a high risk of falling. However, to date, it is not known whether these metrics provide consistent results in assessing age-related alterations in dynamic stability during daily activities, such as stepping.