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Neuromuscular electrical stimulation can elicit aerobic exercise response without undue discomfort in healthy physically active adults.

Abstract：

:Recent studies have suggested that subtetanic neuromuscular electrical stimulation (NMES) protocols applied to the quadriceps and hamstrings may have potential as an alternative aerobic exercise modality. However, its tolerability and effectiveness in the physically active population has been questioned. The primary purpose of this study was to measure physiological and subjective responses to a modified subtetanic NMES protocol in a physically active adult population. Furthermore, the effect of habituation to stimulation on tolerability, the repeatability of response on separate days, and the differences in male and female responses to stimulation were assessed. Oxygen uptake (V[Combining Dot Above]O(2)), heart rate (HR), blood lactate (BLa), rate of perceived exertion, and subjective discomfort were measured in 16 participants (8 men and 8 women) throughout a subtetanic NMES protocol performed at incremental intensities to subjective comfort threshold on 2 separate days, before and after 9 NMES habituation sessions. Peak physiological responses observed at subjective comfort threshold were consistent with therapeutic aerobic exercise intensities (51.5 ± 10.9% V[Combining Dot Above]O(2)max; 72.0 ± 10.9% HRmax; 4.7 ± 2.7 mMol BLa). Peak V[Combining Dot Above]O(2) and current intensity achieved were significantly higher (p < 0.05), yet perceived discomfort was unchanged, after the period of habituation. However, physiological and subjective responses at equivalent stimulation intensities remained unchanged on different days. Male participants showed higher values than female participants. These results suggest that subtetanic NMES can elicit a consistent aerobic exercise response without undue discomfort and could be considered as an alternative exercise modality.

journal_name

J Strength Cond Res

journal_title

Journal of strength and conditioning research

authors

Crognale D,Vito GD,Grosset JF,Crowe L,Minogue C,Caulfield B

doi

10.1519/JSC.0b013e318252f5e5

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

208-15

issue

eissn

1064-8011

issn

1533-4287

pii

00124278-201301000-00029

journal_volume

pub_type

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Neuromuscular electrical stimulation can elicit aerobic exercise response without undue discomfort in healthy physically active adults.