Results 201 to 210 of about 19,057 (240)
Some of the next articles are maybe not open access.
Biochemical properties of overloaded fast-twitch skeletal muscle
Journal of Applied Physiology, 1982Previous studies suggest that fast-twitch skeletal muscle overloaded by surgical removal of synergists contains a greater percent of slow-twitch fibers than normal muscle. Therefore we examined subcellular systems known to represent biochemical properties of slow-twitch skeletal muscle by measuring myosin ATPase, Ca2+ regulation of myofibril ATPase ...
K M, Baldwin +4 more
openaire +2 more sources
Proteomic analysis of slow‐ and fast‐twitch skeletal muscles
PROTEOMICS, 2005Abstract Skeletal muscles are composed of slow‐ and fast‐twitch muscle fibers, which have high potential in aerobic and anaerobic ATP production, respectively. To investigate the molecular basis of the difference in their functions, we examined protein profiles of skeletal muscles using sodium dodecyl sulfate‐polyacrylamide gel ...
Nobuaki, Okumura +6 more
openaire +2 more sources
Clues to calcineurin function in mammalian fast-twitch muscle
Journal of Muscle Research & Cell Motility, 2001It is believed that brief, high amplitude Ca2+ transients, as found in fast-twitch muscles, are not sufficient to activate the calcineurin (Cn)-dependent signaling pathway involved in regulation of slow myosin and slow sarcoplasmic reticulum Ca2+-ATPase genes (Olson and Williams, Cell 101: 689-692, 2000).
SACCHETTO, ROBERTA +2 more
openaire +3 more sources
Influence of electrical stimulation on a fast-twitch muscle in aging rats
Journal of Applied Physiology, 1991Recently we observed that the flexor digitorum longus muscle of the Fischer 344 rat, which is comprised primarily of type IIb muscle, does not change in size, fiber type, or physiological characteristics during senescence [Am. J. Physiol. 258 (Cell Physiol. 27): C1031-C1035, 1990].
T J, Walters, H L, Sweeney, R P, Farrar
openaire +2 more sources
Effect of aging on the buffering capacity of fast-twitch skeletal muscle
Mechanisms of Ageing and Development, 1991The effects of aging on the in situ buffering capacity of fast-twitch muscle fibers was examined in the tibialis anterior (TA) and extensor digitorum longus (EDL) muscles of specific pathogen free Fischer 344 rats. Muscles were electrically stimulated with trains of impulses lasting 100 ms at a frequency of 80 Hz.
L L, Spriet, C B, Campbell, D J, Dyck
openaire +2 more sources
Histochemical Properties of Fast Twitch Muscle in the Rat
Anatomia, Histologia, Embryologia, 1981AbstractA histochemical study of muscle fibers comprising the extensor digitorum longus muscle of adult female Wistar rats was carried out in which Acid ATPase, Alkaline ATPase, Phosphorylase and SDHase determinations were used to classify muscle fibers.
openaire +2 more sources
Temperature sensitivity of tension development in a fast‐twitch muscle of the rat
Muscle & Nerve, 1984AbstractIsometric contractions of the biceps brachii (short head) muscle in the rat were recorded in vitro with direct stimulation and at different temperatures (range, 35°C–10°C). In confirmation of our previous findings from fast extensor digitorum longus and slow soleus muscles, the time and rate parameters of the twitch and the tetanus showed an ...
M H, Elmubarak, K W, Ranatunga
openaire +2 more sources
Influence of aerobic metabolism on IMP accumulation in fast-twitch muscle
American Journal of Physiology-Cell Physiology, 1985Significant activation of AMP deaminase in fast-twitch muscle leads to a loss of ATP and accumulation of NH4 and IMP. Although this occurs during severe metabolic stress caused by intense contraction conditions, the process is probably influenced by the muscle's capacity for aerobic metabolism.
G A, Dudley, R L, Terjung
openaire +2 more sources
Reduced glycolytic metabolism in regenerated fast-twitch skeletal muscle
American Journal of Physiology-Cell Physiology, 1991Freely grafted rat extensor digitorum longus (EDL) muscles were subjected to low-frequency stimulation in an anaerobic environment to determine whether regenerating fast-twitch muscles regain normal glycolytic metabolic capacity. Regenerating muscles were tested at 28, 42, and 76 days after the graft procedure.
M A, Wineinger +4 more
openaire +2 more sources
Myofibrillar ATPase activity in human muscle fast-twitch subtypes
Histochemistry, 1983Under local anesthesia, a muscle biopsy was removed from an individual with a high percentage of type II subtypes. The muscle sample was assayed for myofibrillar ATPase activity using various acid preincubation pH values. Subtle differences were found to exist in the acid-lability of ATPase activity among the type II fibers.
R S, Staron, R S, Hikida, F C, Hagerman
openaire +2 more sources