Abstract of article "Evaluation of the ability to make non-invasive estimation of muscle contractile properties on the basis of the muscle belly response

DAHMANE, Raja, VALENČIČ, Vojko, KNEZ, Nataša, ERŽEN, Ida. Evaluation of the ability to make non-invasive estimation of muscle contractile properties on the basis of the muscle belly response. Med. biol. eng. comput.. (Print ed.), 2001, vol. 39, no. 1, str. 51-55, ilustr. (COBISS.SI-ID 2167124)

Abstract

This preliminary study was made in order to evaluate alternative method based on a tensiomyographic (TMG) non-invasive measurement technique. During the study the histochemical and biomechanical relationships of limb muscles were examined in two groups of 15 men aged between 77 and 40 years. On examined men, seven muscles were chosen: triceps brachii (TB), biceps brachii, flexor digitorum superficialis, biceps femoris, extensor digitorum, gastrocnemius caput mediate (GCM) and tibialis anterior.
Results of histochemical method show us that the percentage of type I muscle fibres obtained by this method is 2.2 times higher for the slowest measured muscle IGCM) than for the fastest (TB). The contraction time of a muscle belly twitch response is 1.9 times higher for GCM than for TB according to measurements made by TMG. In the study statistical analysis of the data obtained by tensiomyo¬graphic and histochemical techniques was made. This analysis shows a significant correlation between the contraction time of muscle response measured by TMG and the percentage of type I muscle fibres (correlation coefficient equals 0.93). As results of the study suggest, TMG measuring technique can be used as a basis for the estimation of the percentage of type I muscle fibres.