1. Plaice caught by trawl net and plaice exercised in laboratory tanks all show high levels of lactic acid (33--44 mmol/kg) in the anaerobic swimming muscle. During exhausting exercise 2 moles of lactate are formed from 1 mole of glycogen glucose. After an 8 h rest 50--80% of the muscle glycogen is restored. 2. Blood lactate levels remain low (0.5--2 mmol/l) in the majority of plaice caught by ...

The aim of this study was to analyze the effects a recovery program based on foam roller with and without vibration blood lactate clearance perceived fatigue after water rescue. A quasi-experimental crossover design carried out compare passive (PR) short protocol (FR) (VFR) 100 m rescue in 7 volunteer lifeguards. Blood exertion were measured before rescue, also 5-min intervention. levels decrea...

OBJECTIVES The aims of this study were to: (1) determine the validity and reliability of the Nova Biomedical Lactate Plus portable analyzer, and quantify any fixed or proportional bias; (2) determine the effect of any bias on the determination of the lactate threshold and (3) determine the effect that blood sampling methods have on validity and reliability. DESIGN In this method comparison st...

OBJECTIVE This prospective study aimed to characterize the changes in blood lactate concentration and blood oxygen saturation in patients during the immediate postoperative period of cardiac surgery with extracorporeal circulation. METHODS Blood samples were collected from 35 patients in a rapid and random order from the arterial line and from the proximal and distal port of a pulmonary arter...

Blood lactate concentration is a highly sensitive measure of tissue oxygen deprivation from ischemia, trauma, and hemorrhage, which can produce life-threatening shock. Significantly, blood lactate is the most reliable end point indicator of resuscitation and predictor of survivability. The need for continuous measurement of blood lactate, and the slowness of discrete conventional photometric as...

BACKGROUND Using blood lactate monitoring for risk assessment in the critically ill patient remains controversial. Some of the discrepancy is due to uncertainty regarding the appropriate reference interval, and whether to perform a single lactate measurement as a screening method at admission to the hospital, or serial lactate measurements. Furthermore there is no consensus whether the sample s...

sleep deprivation has negative effects on performance and resulted in elevating of mortality risk, cardiovascular disease and diabetes. the purpose of this study was to investigate the effects of 30 hour sleep deprivation on serum levels of c-reactive protein, blood lactate, muscular strength and physiological factors of rast test in active students. the present study was a semi-experimental on...

OBJECTIVE Albumin is used routinely as a plasma volume expander in cardiopulmonary bypass operations. The effect of two different concentrations of albumin in Ringer's lactate on blood viscosity was explored in this study. METHODS Ten healthy volunteers (all male) were included in the study, based on their haematocrit levels (42.6 +/- 0.96). Using a heparinised 50-ml syringe, 40 cm(3) of bloo...