Search Results - "Medbø, J I"

Examination of four different instruments for measuring blood lactate concentration by Medbø, J. I., Mamen, A., Holt Olsen, O., Evertsen, E.

“…Information on the performance of different instruments used to measure blood lactate concentration is incomplete. We therefore examined instruments from…”
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Examination of the Metamax I and II oxygen analysers during exercise studies in the laboratory by Medbø, J. I., Mamen, A., Welde, B., Heimburg, E. von, Stokke, R.

“…The performance of the Metamax I and the Metamax II portable analysers for measuring the O 2 uptake has been examined during exercise. Healthy subjects ran on…”
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Anaerobic energy release in working muscle during 30 s to 3 min of exhausting bicycling by Medbø, J I, Tabata, I

“…To examine the anaerobic energy release during intense exercise, 16 healthy young men cycled as long as possible at constant powers chosen to exhaust the…”
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Anaerobic capacity determined by maximal accumulated O2 deficit by Medbø, J I, Mohn, A C, Tabata, I, Bahr, R, Vaage, O, Sejersted, O M

“…We present a method for quantifying the anaerobic capacity based on determination of the maximal accumulated O2 deficit. The accumulated O2 deficit was…”
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Relative importance of aerobic and anaerobic energy release during short-lasting exhausting bicycle exercise by Medbø, J I, Tabata, I

“…Anaerobic energy release is of great importance for shortlasting exercise but has been difficult to quantify. In order to determine the amount of anaerobic…”
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Lactate elimination and glycogen resynthesis after intense bicycling by Medbø, J. I., Jebens, E., Noddeland, H., Hanem, S., Toska, K.

“…Objective. Muscles break down glycogen to lactate during intense exercise, and in the recovery period, glycogen reappears while lactate disappears. The purpose…”
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Effect of training intensity on muscle lactate transporters and lactate threshold of cross-country skiers by Evertsen, F., Medbø, J. I., Bonen, A.

“…The training intensity may affect the monocarboxylate transporters MCT1 and MCT4 in skeletal muscle. Therefore, 20 elite cross‐country skiers (11 men and nine…”
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Hard training for 5 mo increases Na(+)-K+ pump concentration in skeletal muscle of cross-country skiers by Evertsen, F, Medbø, J I, Jebens, E, Nicolaysen, K

“…To study how training affects the Na(+)-K+ pump concentration, 11 male and 9 female elite junior cross-country skiers trained 12-15 h/wk at 60-70%…”
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Plasma potassium changes with high intensity exercise by Medbø, J I, Sejersted, O M

“…1. Exercise seems to change the extracellular potassium concentration far beyond the narrow limits seen in resting subjects. To examine alterations in plasma…”
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Effect of strenuous strength training on the Na-K pump concentration in skeletal muscle of well-trained men by Medbø, J I, Jebens, E, Vikne, H, Refsnes, P E, Gramvik, P

“…This study examined how strenuous strength training affected the Na-K pump concentration in the knee extensor muscle of well-trained men and whether leg muscle…”
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Leg gas exchange, release of glycerol, and uptake of fats after two minutes bicycling to exhaustion by Medbø, J.I., Jebens, E.

“…It is not known to what extent the muscles use fats and carbohydrates as substrate for oxidation after intense, anaerobic types of bicycling. Six healthy young…”
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Glycogen breakdown and lactate accumulation during high-intensity cycling by Medbø, J I

“…High-intensity exercise results in a large breakdown of glycogen. The glycogen lost may reappear as hexose phosphates, lactate, or it may be fully oxidized…”
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The effect of acute vs chronic treatment with β-adrenoceptor blockade on exercise performance, haemodynamic and metabolic parameters in healthy men and women by GULLESTAD, L, HALLEN, J, MEDBO, J. I, GRONNEROD, O, HOLME, I, SEJERSTED, O. M

“…1. Variable results have been reported on the effect of beta-adrenoceptor blockers on maximal oxygen uptake (VO2 max) and exercise endurance. This may in part…”
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Glycogen breakdown in different human muscle fibre types during exhaustive exercise of short duration by Vøllestad, N K, Tabata, I, Medbø, J I

“…The rates of glycogen breakdown during exhaustive intense exercise of three different intensities were determined in type I and subgroups of type II fibres…”
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Arterio-venous differences of blood acid-base status and plasma sodium caused by intense bicycling by MEDBO, J. I, HANEM, S, NODDELAND, H, JEBENS, E

“…After intense exercise muscle may give off hydrogen ions independently of lactate, perhaps by a mechanism involving sodium ions. To examine this possibility…”
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Plasma K+ changes during intense exercise in endurance-trained and sprint-trained subjects by Medbø, J I, Sejersted, O M

“…Active muscle releases K+, and the plasma K+ concentration is consequently raised during exercise. K+ is removed by the Na,K pump, and training may influence…”
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Strenuous prolonged exercise elevates resting metabolic rate and causes reduced mechanical efficiency by Bahr, R, Opstad, P K, Medbø, J I, Sejersted, O M

“…Resting O2 consumption, net mechanical efficiency during cycling exercise and excess postexercise O2 consumption (EPOC) was measured in 15 army cadets after 3…”
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Acid-base and electrolyte balance after exhausting exercise in endurance-trained and sprint-trained subjects by Medbø, J I, Sejersted, O M

“…High ability to perform strenuous exercise of short duration is accompanied by a large lactate formation in the exercising muscles, but the disturbances in…”
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Estimation of lactate release from contracting muscles in humans: a response to recent correspondence by Medbø, J I

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Effect of Acupuncture on Smoking Cessation or Reduction: An 8-Month and 5-Year Follow-up Study by He, Dong, Medbø, Jon I., Høstmark, Arne T.

“…Background. This study was undertaken to examine whether acupuncture treatment may have a long-term effect on smoking cessation or reduction. Methods…”
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