![]() From this point of view, variability is something to be reduced or eliminated. Evidence supporting this view is the frequent observation that novices, older adults, and those with neurodegenerative diseases often produce greater variability than young, healthy, experts. Historically, variability was thought to be synonymous with error such as a faulty execution of an intended motor program. The study of variability in movements and physiological events has revealed systematic patterns of variability associated with both health and disease. ![]() Physiological variability appears in successive observations of physiological events such as the timing of breaths or heart beats. Gait variability reflects how gait parameters (e.g., stride time, stride length) change over many successive steps. Variability is a fundamental to human movements and the underlying physiological processes that support them, ,, ,. Finally, in Section VI, we conclude our work. In Section IV, we present our evaluation, and, in Section V, we discuss directions on developing the next-generation of network-capable metronomes. In Section II, we give a brief background and discuss related work, while in Section III, we present our methodology. Second, we discuss our ongoing work re-thinking these metronomes as devices with advanced networking capabilities, enhanced with immersive technologies, such as Augmented Reality. First, we present a laboratory study that employs irregular metronomes within the context of mechanical perturbations to gait. The contribution of this paper is two-fold. Results from our team suggest this alternative approach may restore healthy gait patterns in older adults. An alternative approach is the use of irregular metronomes based on the statistical regularities observed in gait patterns of young, healthy people. An issue, though, is that those studies have largely used isochronous interbeat intervals for training and rehabilitation. Hence, the use of metronomes shows great promise in these clinical and exercise science settings. Similar improvements have been observed in athletic training, where the effect of metronomic training has been suggested to exhibit a general effect on motor coordination. In recent years, a number of researchers and clinicians have noted the benefit of using metronomes to improve the control of human gait in cases of aging and neurodegenerative disease such as Parkinson’s Disease. Hence, there is a strong interest in developing easy-to-use technology to improve gait, and ultimately, prevent falls. ![]() We discuss the future development of this work in the context of networked augmented reality metronome devices.Ī number of clinical populations experience difficulty in controlling gait during locomotion, and such difficulties increase the risk of falling. Metronomes with statistical properties similar to healthy gait seem to preserve those properties, despite a strong mechanical perturbation. Our results demonstrate that metronomes that are either isochronous or random break down the inherent structure of healthy gait. ![]() Furthermore, we investigate how these properties react to mechanical perturbation in the form of a halted treadmill belt while walking. In this paper, we explore the effect of both regular and irregular metronomes on many statistical properties of interstride intervals. More recently, researchers have advocated the use of irregular metronomes embedded with statistical properties found in healthy populations. Historically, researchers in this area have relied on metronomes with isochronous interbeat intervals, which may be problematic because normal healthy gait varies considerably from one step to the next. To combat these effects, researchers and clinicians have used metronomes as assistive devices to improve movement timing in hopes of reducing their risk of falling. Older adults and people suffering from neurodegenerative disease often experience difficulty controlling gait during locomotion, ultimately increasing their risk of falling.
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