Blar i Brage NIH på forfatter "Ivy, John L."
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Caffeine increases performance in cross-country double-poling time trial exercise
Stadheim, Hans Kristian; Kvamme, Bent; Olsen, Raymond; Ivy, John L.; Drevon, Christian A.; Ivy, John L.; Jensen, Jørgen (Journal article; Peer reviewed, 2013-11)PURPOSE: Caffeine (CAF) improves performance in both short- and long-duration running and cycling where performance relies on power output and endurance capacity of leg muscles. No studies have so far tested ... -
Coingestion of protein and carbohydrate in the early recovery phase, compared with carbohydrate only, improves endurance performance despite similar glycogen degradation and AMPK phosphorylation
Dahl, Marius; Areta, José; Jeppesen, Per Bendix; Birk, Jesper B.; Johansen, Egil Ivar; Ingemann-Hansen, Thorsten; Mette, Hansen; Skålhegg, Bjørn Steen; Ivy, John L.; Wojtaszewski, Jorgen; Kristian, Overgaard; Jensen, Jørgen (Peer reviewed; Journal article, 2020)The present study compared the effects of postexercise carbohydrate plus protein (CHO+PROT) and carbohydrate (CHO)-only supplementation on muscle glycogen metabolism, anabolic cell signaling, and subsequent exercise ... -
Exhaustive exercise and post-exercise protein plus carbohydrate supplementation affect plasma and urine concentrations of sulfur amino acids, the ratio of methionine to homocysteine and glutathione in elite male cyclists
Olsen, Thomas; Sollie, Ove; Nurk, Eha; Turner, Cheryl; Jernerén, Fredrik; Ivy, John L.; Vinknes, Kathrine; Clauss, Matthieu; Refsum, Helga Margaretha; Jensen, Jørgen (Peer reviewed; Journal article, 2020)Plasma and tissue sulfur amino acid (SAA) availability are crucial for intracellular methylation reactions and cellular antioxidant defense, which are important processes during exercise and in recovery. In this randomized, ... -
Intake of protein plus carbohydrate during the first two hours after exhaustive cycling improves performance the following day
Rustad, Per Inge; Sailer, Manuela; Cumming, Kristoffer Toldnes; Jeppesen, Per Bendix; Kolnes, Kristoffer Jensen; Sollie, Ove; Franch, Jesper; Ivy, John L.; Daniel, Hannelore; Jensen, Jørgen (Journal article; Peer reviewed, 2016-04-14)Intake of protein immediately after exercise stimulates protein synthesis but improved recovery of performance is not consistently observed. The primary aim of the present study was to compare performance 18 h after ... -
Protein intake in the early recovery period after exhaustive exercise improves performance the following day
Sollie, Ove; Jeppesen, Per Bendix; Tangen, Daniel S.; Jernerén, Fredrik; Nellemann, Birgitte; Valsdottir, Thorhildur; Madsen, Klavs; Turner, Cheryl; Refsum, Helga; Skålhegg, Bjørn Steen; Ivy, John L.; Jensen, Jørgen (Journal article; Peer reviewed, 2018)The aim of the present study was to investigate the effect of protein and carbohydrate ingestion during early recovery from exhaustive exercise on performance after 18-h recovery. Eight elite cyclists (V̇o2max: 74.0 ± 1.6 ... -
Similar performance after intake of carbohydrate plus whey protein and carbohydrate only in the early phase after non-exhaustive cycling
Sollie, Ove; Clauss, Matthieu; Jeppesen, Per Bendix; Tangen, Daniel S.; Johansen, Egil Ivar; Skålhegg, Bjørn Steen; Ivy, John L.; Jensen, Jørgen (Peer reviewed; Journal article, 2023)Aim: The aim of the present study was to compare performance 5 h after a 90-min endurance training session when either carbohydrate only or carbohydrate with added whey hydrolysate or whey isolate was ingested during the ...