Effect of gender and obesity on electrical current thresholds

Introduction: In this study we investigated the influence of gender and obesity on electrical current thresholds in an attempt to optimize the application of skeletal muscle electrical stimulation (ES) in clinical practice. Methods: Thirty‐two obese and 35 age‐matched, non‐obese men and women receiv...

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Veröffentlicht in:Muscle & nerve 2011-08, Vol.44 (2), p.202-207
Hauptverfasser: Maffiuletti, Nicola A., Morelli, Andrea, Martin, Alain, Duclay, Julien, Billot, Maxime, Jubeau, Marc, Agosti, Fiorenza, Sartorio, Alessandro
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container_end_page 207
container_issue 2
container_start_page 202
container_title Muscle & nerve
container_volume 44
creator Maffiuletti, Nicola A.
Morelli, Andrea
Martin, Alain
Duclay, Julien
Billot, Maxime
Jubeau, Marc
Agosti, Fiorenza
Sartorio, Alessandro
description Introduction: In this study we investigated the influence of gender and obesity on electrical current thresholds in an attempt to optimize the application of skeletal muscle electrical stimulation (ES) in clinical practice. Methods: Thirty‐two obese and 35 age‐matched, non‐obese men and women received graded ES to the quadriceps muscle for sensory (detection) and motor (contraction) threshold assessment. Concomitant pain and tolerance to ES were recorded. Results: Sensory threshold was lower in women than in men (P < 0.001), both obese and non‐obese. Sensory and motor thresholds were higher in obese than in non‐obese subjects (P < 0.05), and body mass index was a strong predictor of motor excitability (r2 = 0.56–0.61). Current tolerance to motor stimulation was reduced in obese individuals, particularly in women, whereas pain was not influenced by gender or obesity. Conclusions: We suggest that both gender and obesity factors should be carefully considered in the design of rational ES treatments. Muscle Nerve, 2011
doi_str_mv 10.1002/mus.22050
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Methods: Thirty‐two obese and 35 age‐matched, non‐obese men and women received graded ES to the quadriceps muscle for sensory (detection) and motor (contraction) threshold assessment. Concomitant pain and tolerance to ES were recorded. Results: Sensory threshold was lower in women than in men (P &lt; 0.001), both obese and non‐obese. Sensory and motor thresholds were higher in obese than in non‐obese subjects (P &lt; 0.05), and body mass index was a strong predictor of motor excitability (r2 = 0.56–0.61). Current tolerance to motor stimulation was reduced in obese individuals, particularly in women, whereas pain was not influenced by gender or obesity. Conclusions: We suggest that both gender and obesity factors should be carefully considered in the design of rational ES treatments. 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Psychology</topic><topic>Humans</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Metabolic diseases</topic><topic>Middle Aged</topic><topic>motor excitability</topic><topic>Neuroscience</topic><topic>Obesity</topic><topic>Obesity - physiopathology</topic><topic>pain</topic><topic>Pain - physiopathology</topic><topic>Pain Threshold - physiology</topic><topic>quadriceps femoris</topic><topic>Quadriceps Muscle - physiopathology</topic><topic>sensory excitability</topic><topic>Sensory Thresholds - physiology</topic><topic>Sex Factors</topic><topic>Striated muscle. 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subjects Adult
Biological and medical sciences
Cognitive science
Electric Stimulation
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Medical sciences
Metabolic diseases
Middle Aged
motor excitability
Neuroscience
Obesity
Obesity - physiopathology
pain
Pain - physiopathology
Pain Threshold - physiology
quadriceps femoris
Quadriceps Muscle - physiopathology
sensory excitability
Sensory Thresholds - physiology
Sex Factors
Striated muscle. Tendons
subcutaneous fat
Touch Perception - physiology
Vertebrates: osteoarticular system, musculoskeletal system
title Effect of gender and obesity on electrical current thresholds
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