Search
Now showing items 1-10 of 269
Exercise-induced muscle damage and running economy in humans
(2013-03-07)
Running economy (RE), defined as the energy demand for a given velocity of submaximal running, has been identified as a critical factor of overall distance running performance. Plyometric and resistance trainings, performed ...
Stretch Injuries of Skeletal Muscles: Experimental Study in Rats' Soleus Muscle
(Soc Chilena Anatomia, 2009-12-01)
The study aimed to verify the physiological injury behavior by stretching the soleus muscle of rats, using a noninvasive experimental model. Twenty-four rats were used and divided into three groups of eight animals: control ...
Morphological aspects of muscle regeneration in the Nile tilapia (Oreochromis niloticus)
(2004-07-01)
The aim of our study was to analyze the morphological events in the skeletal muscle of the Nile tilapia (Oreochromis niloticus) after a traumatic lesion. Thirty-two fish were used, on which a small longitudinal incision ...
Histoenzymological and ultrastructural changes in lateral muscle fibers of Oreochromis niloticus (Teleostei: Cichlidae) after local injection of veratrine
(2001-12-01)
The effects of veratrine have been investigated in mammalian, amphibian, and crustacean muscle, but not in fish. In this work, the action of veratrine was studied in the lateral muscle of the freshwater teleost Oreochromis ...
Electromyographic analysis of the arm muscles in back support exercises
(2007-11-01)
This study aims at quantifying through electromyography the actions of the biceps brachii-BB (long head), tríceps brachii- TB (long head) and deltoideus-DA (clavicular portion) muscles, during the going (G) and return (R) ...
Myostatin and follistatin expression in skeletal muscles of rats with chronic heart failure
(Wiley-Blackwell Publishing, Inc, 2010-02-01)
P>Skeletal muscle abnormalities can contribute to decreased exercise capacity in heart failure. Although muscle atrophy is a common alteration in heart failure, the mechanisms responsible for muscle mass reduction are not ...
Mouse extensor digitorum longus and soleus show distinctive ultrastructural changes induced by veratrine
(2002-07-01)
We investigated whether veratrine (5 μl, 10 ng/kg) injected into the mouse extensor digitorum longus (EDL) (fast-twitch) and soleus (SOL) (slow-twitch) muscles provokes distinctive ultrastructural disturbances 15, 30 and ...
Histochemical study of muscle fiber types in Synbranchus marmoratus Bloch, 1795
(1996-01-01)
The myotomal muscle of Synbranchus marmoratus was investigated using histochemical and immunohistochemical reactions. This musculature is composed of a superficial red compartment, uniformly distributed around the trunk ...
Morphometry and expression of MyoD and Myogenin in white and red skeletal muscles of juvenile fish Colossoma macropomum (Cuvier 1818)
(2013-07-10)
Colossoma macropomum, also known as tambaqui, is an economically important fish species, and interesting new studies have been published with the aim of improving the growth of this fish. In this work, we describe the ...
Electromyographic validation of basic exercises for physical conditioning programmes V. The comparison of the response in the deltoid muscle (anterior portion) and the pectoralis major muscle (clavicular portion) determined by the frontal-lateral cross, dumbbells and the rowing exercises
(2003-03-01)
The action potential level for shoulder muscles deltoid-anterior portion (DA) and pectoralis major-clavicular portion (PMC) determined by four different modalities of execution of rowing exercises, each one with two different ...