Skeletal muscle tone and motor performance characteristics in dentists as compared to controls
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Kuupäev
2017
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The daily work tasks of dentists are associated with repeated movements and static
load during the treatment of patients. Dentists’ profession includes manual dexterity and
maintaining the occupational posture for a long time. Previously it has been noted that dentists
have increased muscle stress in neck, shoulder and lower back regions. The aim of the present
study was to compare the muscle tone and motor performance characteristics of neck and
shoulder region in dentists and representatives of other professions who do not have similar static
load of long-time duration (as controls). Twenty women aged 34–55 years participated in the
study: ten dentists with the age (mean and SE) of 40.2 ± 3.9 years and ten controls (bookkeepers,
security guards, office workers, printing house workers, laundry and dry cleaning workers) with
the age of 40.9 ± 2.4 years; working period was on the average 14 years in both groups. The tone
characteristics of m. trapezius and m. extensor carpi radialis were investigated by device Myoton-
2 (Müomeetria Ltd, Estonia) at rest and at maximal voluntary contraction (MVC) in sitting
position at the workplace of participants. The cervical range of motion (CROM) and the handgrip
strength were measured. Significantly higher (P < 0.05) tone and elasticity characteristics of m.
extensor carpi radialis and lower (P < 0.05) tone and elasticity characteristics of m. trapezius at
rest were noted in dentists compared to controls. At MVC, no significant differences were found
in the studied characteristics between body sides in the measured groups. Dentists had lower
(P < 0.05) CROM of flexion and rotation than controls. In dentists emerged significant difference
in muscle elasticity characteristics for the right body side, this is related with stretching for
dentistry instruments.
Kirjeldus
Article
Märksõnad
muscle tone, muscle elasticity, handgrip strength, range of motion, dentists, articles