Does whole-body electrical muscle stimulation combined with strength training promote morphofunctional alterations?

The aim of this study was to evaluate the effects of 8 weeks of strength training (ST) combined with whole-body electrical stimulation (EMS) on morphofunctional adaptations in active individuals. Fifty-eight volunteers were randomly distributed into the following groups: an untrained control (UN) gr...

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Published in:Clinics (São Paulo, Brazil) Brazil), 2019-01, Vol.74, p.e1334-e1334, Article e1334
Main Authors: Evangelista, Alexandre Lopes, Teixeira, Cauê Vazquez La Scala, Barros, Bruna Massaroto, de Azevedo, Jônatas Bezerra, Paunksnis, Marcos Rodolfo Ramos, de Souza, Cleison Rodrigues, Wadhi, Tanuj, Rica, Roberta Luksevicius, Braz, Tiago Volpi, Bocalini, Danilo Sales
Format: Article
Language:English
Subjects:
Adult
Electric Stimulation - methods
Humans
Male
Maximal Strength
MEDICINE, GENERAL & INTERNAL
Muscle Hypertrophy
Muscle Strength
Muscle Strength - physiology
Muscle, Skeletal - physiology
Neuromuscular Adaptation
Original
Random Allocation
Resistance Training
Resistance Training - methods
Young Adult
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Summary:The aim of this study was to evaluate the effects of 8 weeks of strength training (ST) combined with whole-body electrical stimulation (EMS) on morphofunctional adaptations in active individuals. Fifty-eight volunteers were randomly distributed into the following groups: an untrained control (UN) group (n=16), an ST group (n=21) or an ST combined with EMS (ST+EMS) group (n=21). Both intervention groups (the ST and ST+EMS groups) performed 3 exercises (biceps curl, back squats and high-pulley tricep extensions) twice a week for 8 weeks. The subjects performed 3 sets of 8 to 12 maximum repetitions (MRs) with a 90-second rest duration between sets. The ST+EMS group performed the resistance training exercises wearing a whole-body suit that provided electrical stimulation at frequencies between 80-85 Hz, with a continuously bipolar impulse duration and pulse breadth of 350 µs. The intensity for each muscle group was controlled by Borg's category ratio (CR)-10 scale; the intensity started at 5-6 and eventually reached 7-8. One-repetition maximum strength (1RM) and muscle thickness (MT) were measured before and after the training intervention. MT was evaluated in the biceps brachii (BB), triceps brachii (TB), and vastus lateralis (VL). No differences (p>0.05) were found between the ST and ST+EMS groups. Improvements (p
ISSN:1807-5932
1980-5322
1980-5322
DOI:10.6061/clinics/2019/e1334