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Combining neuromuscular electrical stimulation and action observation to promote sensorimotor adaptation in healthy older adults: a study protocol on a self-administered home-based intervention

Year: 2025
Type: preprint
Study design: Study Protocol
Abstract: Aging is associated with a decline in muscle strength and the functionality of the perceptual structures involved in proprioception. This decline results in a gradual loss of autonomy in daily activities. Neuromuscular electrical stimulation (NMES) has been shown to be an effective technique in limiting the decline in strength. Action observation (AO) is a cognitive technique, which has been shown to improve motor performance, especially when combined with peripheral stimulation. The purpose of this study is to evaluate whether an self-administered, home-based intervention combining NMES and AO improves upper limb muscle strength and proprioceptive abilities in healthy elderly individuals. Participants within the age range of 65–85 years will be recruited for this study. The intervention is scheduled to span a duration of four weeks, encompassing three treatment sessions per week. Participants will be randomly divided into three groups: NMES, AO, and AO-NMES. Assessments will be performed before and immediately after the intervention. They will include muscle strength evaluation (handgrip strength, maximal isometric force of the biceps, bench press power), and perceptual evaluation (weight discrimination during an AO task, weight judgment tasks). This study may suggest an original approach, cost-effective approach to mitigate the effects of physiological aging on muscle and sensorimotor function, with potential applications for frail populations, unable or unmotivated to perform conventional physical activity.
DOI: 10.22541/au.175952325.55222026/v1
Institution: University of Genoa
Language: English
Subfield: Rehabilitation
Field: Medicine
Open Access status: gold
Award: G972786147
OpenAlex ID: W4414798218
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