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ORIGINAL PAPER
In vivo assessment of the diaphragm in young male healthy adults: occupation-based activity-related differences
 
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Submission date: 2014-10-11
 
 
Final revision date: 2014-12-09
 
 
Acceptance date: 2014-12-09
 
 
Publication date: 2015-01-11
 
 
Medical Studies 2014;30(4):221-227
 
KEYWORDS
TOPICS
ABSTRACT
Introduction: Very little attention has been paid to the thickness of the diaphragm (DT) as an important aspect of architecture of the respiratory muscle and the possible effect of occupation-related unregulated physical activity on it.
Aim of the research: This study aimed at assessing the effect of occupation-based physical activity on the thickness of the thoracic diaphragm.
Material and methods: Eighty (80) males between the ages of 18 and 30 years were recruited for the study and divided into two (2) groups: a control group of forty (40) relatively inactive subjects and a quasi-experimental group of forty (40) peasant labourers. The peasant labourers were recruited from a settlement of local craftsmen and motor-mechanic artisans. B-mode ultrasound was used to measure the thickness of the diaphragm (DT).
Results: The mean DT of the quasi-experimental group was higher than that of the control group (p > 0.05 – not significant), even though the control group presented significantly greater weight and body mass index (p < 0.05) than the age-matched Labourers.
Conclusions: These findings indicate that occupation-based unregulated physical activity increases DT and may initiate the setting in of diaphragmatic hypertrophy induced by occupation-associated strength and anaerobic training. The findings will also serve as a guidepost in the biomechanical aspects of the muscle during respiration in our sub-Saharan African population.
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