Medical Hydrology and Balneology: Environmental Aspects

Analysis of the neuromuscular activity during
adapted swimming with a snorkel
Castillo R (1) , Cuesta A (2)
(1) Patronato Municipal de Deportes. Málaga, Spain
(2) Department of Psychiatry and Physiotherapy, Faculty of Health Sciences,
University of Malaga
romu_castillo@hotmail.com
Introduction and Objectives
Study Design: Cross-sectional, analytical inferential that uses surface electromyography
(sEMG) to measure muscle activation cervical-brachial axis of the right
shoulder in healthy subjects during front crawl swimming and crawling with and
without tube.
Objective: To compare the activation of the muscles of cervical-brachial axis of
the right shoulder and synergists in the execution of crawling and crawl tube with
and without extrapolation to clinical practice in Therapeutic Physical Activity
programs (AFT).
Hypothesis: There are significant differences in terms of cervical-brachial muscle
activity of the right shoulder during the performance of crawling and swimming
to crawl with and without tube in healthy subjects.
Materials and Methods
Methods and Measures: sEMG was examined by cervical-brachial eight muscles
(erector spinae neck, trapezius, supraspinatus, infraspinatus, pectoralis, anterior
deltoid, middle deltoid and latissimus dorsi) of the right shoulder of 16 subjects (8
men and 8 women). Each subject was measured 5 complete cycles of swimming to
crawling and crawl tube with and without speed 40BMP. Previously, carried out
(land) test maximum voluntary contraction (MVC) to normalize, in absolute terms,
the percentage of activation in every gesture. Statistical comparisons were made
with the nonparametric test Kolgomorov-Smirnov and use test Wilconxon or test T-
Student according to normality of the variables.
Results
Results: The results of the 8 muscles studied muscle activation during the test
was statistically significant for the infraspinatus (p= .020) and erector spinae muscle
of the neck (p= .050) in the crawl, and the erector spinae of the neck (p= .020) in
front crawl swimming.
Balnea
2012, núm. 6, 357-358
357
ISBN: 978-84-669-1887-0
978-84-669-3482-4