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Effectiveness of Neuromuscular Electrical Stimulation During Rest and Exercise

2017; Lippincott Williams & Wilkins; Volume: 49; Issue: 5S Linguagem: Inglês

10.1249/01.mss.0000518157.67217.c0

1530-0315

Hollie M Champion, Susanna Ek, Rolf Frazier, Anna E Kinslow, Caroline W McClain, Tiago V. Barreira, Wayland Tseh,

Sports Performance and Training

PURPOSE: To determine the effectiveness of neuromuscular electrical stimulation (NMES) as an aid to enhance venous blood return during rest and submaximal exercise. METHODS: Twenty apparently healthy males (Age = 35.0 ± 15.0 yrs; Height = 179.9 ± 8.5 cm; Body Mass = 85.4 ± 12.0 kg) provided informed consent prior to participation. In Session 1, participants were familiarized with all equipment. Sessions 2-4 were randomly selected and included the following 5-min trials: a) Rest and Rest + NMES, b) Rest, Arms-Only, Arms + NMES, and c) Rest, Arms + Legs, Arms + Legs + NMES. Physiological variables collected during rest and submaximal exercise were volume of oxygen (VO2), heart rate (HR), systolic and diastolic blood pressure (SBP and DBP), respiratory exchange ratio (RER), and rate pressure product (RPP). Paired sample t-test was used to determine if there were significant mean differences between the NMES and non-NMES trials. The Bonferroni correction established the alpha level at 0.008. RESULTS: From the 18 paired t-tests, the only observed significant mean difference [t(19) = -6.4, p<0.001] was RER values between the Arms-Only trial compared to the Arms + NMES trial (0.94 and 1.00, respectively). CONCLUSION: While RER displayed a significant difference, collectively, NMES did not elicit any physiological alterations during rest and submaximal exercises within an apparently healthy population. Supported and funded by UNCW Undergraduate Research Fellowship Award.