Muscle as a consumer of lactate

Article Abstract:

Speculation about limiting factors for transmembrane lactate flux is not based on good data. Studies that validly evaluate intracellular, interstitial and plasma lactate concentrations under various physiological conditions apparently do not exist. Exercise rate, muscle fiber type, blood flow, blood lactate concentration, metabolic rate and its effects on lactate metabolism and transport, and hydrogen ion concentration are considered.

Blood flow, Lactic acid, Cytochemistry, Cells, Cell permeability, Muscle cells

---

An enzymatic approach to lactate production in human skeletal muscle during exercise

Article Abstract:

Lactate production in human skeletal muscle over a range of power outputs has been studied from an enzymatic flux perspective. At low power outputs, the signals that turn on glycogenolysis/glycolysis accumulated slightly bringing low rates of pyruvate and NADH products in cytoplasm. Mitochondrial activities that lead finally to activation of enzymes involved in lactate production are still not well understood.

Phosphorylation, Lactate dehydrogenase, Glycolysis

---

Decreased EMG median frequency during a second bout of eccentric contractions

Article Abstract:

Lower electromyographic (EMG) median frequency in a second bout of eccentric contractions has been studied. It was found that higher C4/5 joint loads may exist than had previously been reported in maximum isometric muscle contractions.

Models, Muscle contraction, Neck, Spine, Vertebrae, Cervical, Cervical vertebrae

Similar abstracts:

• Abstracts: Neuromuscular response of young boys versus men during sustained maximal contraction. Decreased EMG median frequency during a second bout of eccentric contractions
• Abstracts: Effects of oral creatine and resistance training on myogenic regulatory factor expression. Effects of oral creatine and resistance training on myosin heavy chain expression
• Abstracts: Assessment of speed of human locomotion using a differential satellite global positioning system. Measurement of the mechanical power of walking by satellite positioning system (GPS)
• Abstracts: Exercise-related lower leg pain: an overview. A review of chronic exertional compartment syndrome in the lower leg
• Abstracts: Exercise-related lower leg pain: vascular. The dynamics of concussive head impacts in rugby and Australian rules football

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.