Use of isokinetic tests and bmd in musculoskeletal system evaluation

Anna Skrzek, Małgorzata Mraz, Marek Woźniewski

Anna Skrzek, Małgorzata Mraz, Marek Woźniewski – Use of isokinetic tests and bmd in musculoskeletal system evaluation. Fizjoterapia Polska 2008; 8(2); 128-138

Abstract
Background. All elements of the locomotor system from an interconnected and interacting, biological and mechanical whole. The development, functioning and involution are mutually dependent. Studies of problems connected with the involution of the organs of locomotion help to explain and understand the most important determinants of these processes. The purpose of the present study was to demonstrate the utility of densitometric and isokinetic examinations for the assessment of changes in the organs of locomotion brought about by a pro-health exercise programme in women over 60 years old.Material and methods. The study group was composed of 46 women sged 60 or more who were subjected to a 4-monthpro-health exercise programme. Bone mineral density was measured in the proximal femur by DEXA. The densitometric studies were carried out in the Densitometry Unit of the Departament of Endocrinology, Diabetology and Isotope Therapy of Wroclaw Medical University. Strength measurements were performed using a Biodex System 3 Multi Joint isokinetic study unit (Biodex Medical System, New York, USA) located at the laboratory of the Physiotherapy Faculty of the University School of PHysical Education, Wroclaw. Concentric isokinetic tests for the trunk flexors and extensors and for the flexors and extenors of the knee were conducted in the sitting position.Results and Conclusions. The findings confirm a beneficial effect of this form of physical activity on the health of the components of the locomotor system examined in the study. There was a statistically significant improvement in most strength-velocity parameters examined in the muscles of the trunk and lower limbs. There was also a noticeable tendecy whereby the age-associated decrease in bone mineral density was slowed down.
Key words:
ageing, densitometry, isokinetic test
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