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- Title
Effect of Abdominal Electrical Muscle Stimulation Training With and Without Superimposed Voluntary Muscular Contraction on Lumbopelvic Control.
- Authors
Hwang, Ui-Jae; Jung, Sung-Hoon; Kim, Hyun-A; Kim, Jun-Hee; Kwon, Oh-Yun
- Abstract
Context: Electrical muscle stimulation (EMS) was designed for artificial muscle activation or superimposed training. Objectives: To compare the effects of 8 weeks of superimposed technique (ST; application of electrical stimulation during a voluntary muscle action) and EMS on the cross-sectional area of the rectus abdominis, lateral abdominal wall, and on lumbopelvic control. Setting: University research laboratory. Design: Randomized controlled trial. Participants: Fifty healthy subjects were recruited and randomly assigned to either the ST or EMS group. Intervention: The participants engaged with the electrical stimulation techniques (ST or EMS) for 8 weeks. Main Outcome Measures: In all participants, the cross-sectional area of the rectus abdominis and lateral abdominal wall was measured by magnetic resonance imaging and lumbopelvic control, quantified using the single-leg and double-leg lowering tests. Results: There were no significant differences in the cross-sectional area of the rectus abdominis (right: P =.70, left: P =.99) or lateral abdominal wall (right: P =.07, left: P =.69) between groups. There was a significant difference between groups in the double-leg lowering test (P =.03), but not in the single-leg lowering test (P =.88). There were significant differences between the preintervention and postintervention in the single-leg (P <.001) and double-leg lowering tests (P <.001). Conclusions: ST could improve lumbopelvic control in the context of athletic training and fitness.
- Subjects
PHYSIOLOGY of abdominal muscles; LUMBAR vertebrae physiology; ANALYSIS of covariance; CONFIDENCE intervals; ELECTRIC stimulation; ENDURANCE sports training; EXERCISE physiology; MUSCLE contraction; MUSCLE strength; NEUROPHYSIOLOGY; PHYSICAL fitness; NEUROMUSCULAR system; RANDOMIZED controlled trials; DATA analysis software; SKELETAL muscle; DESCRIPTIVE statistics
- Publication
Journal of Sport Rehabilitation, 2020, Vol 29, Issue 8, p1137
- ISSN
1056-6716
- Publication type
Article
- DOI
10.1123/jsr.2019-0348