| Author/Editor | Dahmane, Raja | |
| Title | Hietokemična, morfometrična in biomehanska primerjava miŠic zgornjega in spodnjega uda | |
| Translated title | The histochemical, morphometric and biomechanical comparison of the upper and the lower limb muscles | |
| Type | monografija | |
| Place | Ljubljana | |
| Publisher | Medicinska fakulteta | |
| Publication year | 2002 | |
| Volume | str. 79 | |
| Language | slo | |
| Abstract | The histochemical, morphometric and biomechanical relationships of limb muscles were examined in two different groups of 1 S men aged between 17 and 40 years. Nine muscles were chosen: biceps brachii (BB), brachioradialis (BR), triceps brachii (TB), flexor dgitorum superficialis (FDS), extensor digitorum (ED), biceps femoris (BF), gastrocnemius - caput mediate (GCM), soleus (SOL) and tibialis anterior (TA). Our principal aim was to contribute with a wide histochemical and morphometric analysis to increase our knowledge of the morphology and function of the limb muscles in normal human subjects. Knowledge of the morphology, function and differences between normal healthy muscles is the basis for ageing research and pathological investigations. The analysis shows that the proportion of fire types were different between the upper limb muscles and the muscles of the calves. Typically, muscles of the calves (GCM, SOL, TA) which mainly function posturally, are significantly more dominated by type 1 fibres than muscles of the upper limb and BF. BF was found to be the most adaptive muscle since it showed the highest proportion of type 2c fibres. Types 2, 2a, 2b were found to be larger (diameter and sectional area) than type 1 fibres in all the muscles except in soleus muscle. In general type 1 fibres are relatively larger in the flexor calf muscles, m. soleus and m. gastrocnemius, since these muscles are involved in maintenance of vertical posture. The section area proportion (proportion of fibres type x section area) of the type 1 muscle fibres is lower than the proportion of type 2 fibres because their mean diameter is smaller. For the type 2 fibres, the section area proportion is higher than the proportion of type 1 fibres because their mean diameter is larger. (Abstract truncated at 2000 characters) | |
| Descriptors | MUSCLE, SKELETAL ARM LEG MUSCLE CONTRACTION BIOMECHANICS ADOLESCENCE ADULT HISTOCYTOCHEMISTRY MUSCLE FIBERS, FAST-TWITCH MUSCLE FIBERS, SLOW-TWITCH ELECTROMYOGRAPHY |