Falls not only present a considerable health threat, but the resulting treatment and loss of
working days also place a heavy economic burden on society. Gait instability is a major fall …

Minimum foot clearance (MFC) is the minimum vertical distance between the lowest point of
the foot of the swing leg and the walking surface during the swing phase of the gait cycle …

Approximate entropy (ApEn) and sample entropy (SampEn) are mathematical algorithms
created to measure the repeatability or predictability within a time series. Both algorithms are …

Entropy measures are widely applied to quantify the complexity of dynamical systems in
diverse fields. However, the practical application of entropy methods is challenging, due to …

The usage of entropy analysis in gait research has grown considerably the last two decades.
The present paper reviews the application of different entropy analyses in gait research and …

Standing postural control is complex, meaning that it is dependent upon numerous inputs
interacting across multiple temporal-spatial scales. Diminished physiologic complexity of …

Sample entropy (SE) has relative consistency using biologically-derived, discrete data> 500
data points. For certain populations, collecting this quantity is not feasible and continuous …

Evaluation of surgical skills during minimally invasive surgeries is needed when recruiting
new surgeons. Although surgeons' differentiation by skill level is highly complex …

People with amputation are at increased risk of falling compared with age-matched,
nondisabled individuals. This may partly reflect amputation-related changes to minimum toe …

Purpose Injuries to the anterior cruciate ligament (ACL) occur frequently, particularly in
young adult athletes, and represent the majority of the lesions of knee ligaments. Recent …