Browsing Brage NIH by Author "Cumming, Kristoffer Toldnes"
Now showing items 1-16 of 16
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Acute and long-term effects of blood flow restricted training on heat shock proteins and endogenous antioxidant systems
Cumming, Kristoffer Toldnes; Ellefsen, Stian; Rønnestad, Bent; Ugelstad, Ingrid; Raastad, Truls (Journal article; Peer reviewed, 2016)Blood flow restricted exercise (BFRE) with low loads has been demonstrated to induce considerable stress to exercising muscles. Muscle cells have developed a series of defensive systems against exercise-induced stress. ... -
Blood volume expansion does not explain the increase in peak oxygen uptake induced by 10 weeks of endurance training
Skattebo, Øyvind; Bjerring, Anders W.; Auensen, Marius; Sarvari, Sebastian; Cumming, Kristoffer Toldnes; Capelli, Carlo; Hallén, Jostein (Peer reviewed; Journal article, 2020)Purpose: The endurance training (ET)-induced increases in peak oxygen uptake (V˙O2peak) and cardiac output (Q˙peak) during upright cycling are reversed to pre-ET levels after removing the training-induced increase in blood ... -
Can supplementation with vitamin C and E alter physiological adaptations to strength training?
Paulsen, Gøran; Cumming, Kristoffer Toldnes; Hamarsland, Håvard; Børsheim, Elisabeth; Berntsen, Sveinung; Raastad, Truls (Journal article; Peer reviewed, 2014-07-05)Background: Antioxidant supplementation has recently been demonstrated to be a double-edged sword, because small to moderate doses of exogenous antioxidants are essential or beneficial, while high doses may have adverse ... -
Comparing the effects of variable and traditional resistance training on maximal strength and muscle power in healthy adults: A systematic review and meta-analysis
Andersen, Vidar; Prieske, Olaf; Stien, Nicolay; Cumming, Kristoffer Toldnes; Solstad, Tom Erik Jorung; Paulsen, Gøran; van den Tillaar, Roland Johannes Wilhelmus; Pedersen, Helene; Sæterbakken, Atle Hole (Peer reviewed; Journal article, 2022)Objectives: The aim of the study was to aggregate different effects between variable resistance training and traditional resistance training on maximal muscle strength and muscle power and identify potential sex- and ... -
Effectiveness of a resistance training program on physical function, muscle strength, and body composition in community-dwelling older adults receiving home care: A cluster-randomized controlled trial
Bårdstu, Hilde Bremseth; Andersen, Vidar; Fimland, Marius Steiro; Aasdahl, Lene; Raastad, Truls; Cumming, Kristoffer Toldnes; Sæterbakken, Atle Hole (Peer reviewed; Journal article, 2020)Background: Aging is associated with reduced muscle mass and strength leading to impaired physical function. Resistance training programs incorporated into older adults’ real-life settings may have the potential to counteract ... -
Effects of a 10-d Military Field Exercise on Body Composition, Physical Performance, and Muscle Cells in Men and Women
Vikmoen, Olav; Teien, Hilde Kristin; Tansø, Rita; Aandstad, Anders; Lander, Elise; Cumming, Kristoffer Toldnes; Ellefsen, Stian; Helkala, Kirsi Marjaana; Raastad, Truls (Peer reviewed; Journal article, 2023)Purpose: To investigate the effects of a demanding military field exercise on physical performance, body composition and muscle cellular outcomes in men and women. Methods: Ten men (20.5 ± 0.5 years) and 8 women (21.4 ± ... -
The Effects of Cold Water Immersion and Active Recovery on Molecular Factors That Regulate Growth and Remodeling of Skeletal Muscle After Resistance Exercise
Peake, Jonathan M.; Markworth, James F.; Cumming, Kristoffer Toldnes; Aas, Sigve Nyvik; Roberts, Llion A.; Raastad, Truls; Cameron-Smith, David; Figueiredo, Vandré C. (Peer reviewed; Journal article, 2020)Regular postexercise cooling attenuates muscle hypertrophy, yet its effects on the key molecular factors that regulate muscle growth and remodeling are not well characterized. In the present study, nine men completed two ... -
Effects of training, detraining, and retraining on strength, hypertrophy, and myonuclear number in human skeletal muscle
Psilander, Niklas; Eftestøl, Einar; Cumming, Kristoffer Toldnes; Solgård, Inga Juvkam; Ekblom, Maria M.; Sunding, Kerstin; Wernbom, Mathias; Holmberg, Hans-Christer; Ekblom, Björn; Bruusgaard, Jo C.; Raastad, Truls; Gundersen, Kristian (Peer reviewed; Journal article, 2019)Previously trained mouse muscles acquire strength and volume faster than naïve muscles; it has been suggested that this is related to increased myonuclear density. The present study aimed to determine whether a previously ... -
Effekten av to ulike styrketreningsmetoder på satellittceller, cellekjerner, muskelfiberareal og muskelstyrke i knestrekkerne hos eldre
Cumming, Kristoffer Toldnes (Master thesis, 2009)Målet med denne studien var å undersøke ulike cellulære endringer hos eldre mennesker etter 12 uker med trening. 11 selvhjulpne eldre mennesker (70-88 år) trente enten tradisjonell- (n=5) eller funksjonell styrketrening ... -
Explosive Resistance Training Using Elastic Bands in Young Female Team Handball Players
Andersen, Vidar; Fimland, Marius Steiro; Cumming, Kristoffer Toldnes; Vraalsen, Øyvind Fougli; Sæterbakken, Atle Hole (Journal article; Peer reviewed, 2018)The aim of the study was to examine the effects of full-body elastic resistance band training in young female team handball players. 12 players (16.5±0.7 years, 166±5.0 cm, 65.9±8.8 kg) completed an 11-week control period ... -
Functional and Structural Adaptations of Skeletal Muscle in Long-Term Juvenile Dermatomyositis: a Controlled Cross-Sectional Study
Berntsen, Kristin Schjander; Raastad, Truls; Marstein, Henriette; Kirkhus, Eva Astrid; Merckoll, Else; Cumming, Kristoffer Toldnes; Flatø, Berit; Sjaastad, Ivar; Sanner, Helga (Peer reviewed; Journal article, 2019)Objective: To compare muscle strength and endurance of the knee extensors between patients with long‐term juvenile dermatomyositis (DM) and controls and between patients with active disease and those with inactive disease, ... -
Heat shock proteins and endogenous antioxidants in skeletal muscle: acute responses to exercise and adaptations to training
Cumming, Kristoffer Toldnes (Doctoral thesis, 2014)Muscular training adaptations do not only involve the normally investigated increases in muscle size (strength training) or mitochondrial capacity (endurance training), because several homeostatic systems need to follow. ... -
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 ... -
Muscular HSP70 content is higher in elderly compared to young, but is normalized after 12 weeks of strength training
Cumming, Kristoffer Toldnes; Kvamme, Nils Helge; Schaad, Laura; Ugelstad, Ingrid; Raastad, Truls (Peer reviewed; Journal article, 2021)Purpose: Aging is associated with increased myocellular stress and loss of muscle mass and function. Heat shock proteins (HSPs) are upregulated during periods of stress as part of the cells protective system. Exercise can ... -
Musculoskeletal adaptations to strength training in frail elderly: A matter of quantity or quality?
Aas, Sigve Nyvik; Breit, Markus; Karsrud, Stian; Aase, Ole Jølle; Rognlien, Simen Helset; Cumming, Kristoffer Toldnes; Reggiani, Carlo; Seynnes, Olivier R.; Rossi, Andrea; Toniolo, Luana; Raastad, Truls (Peer reviewed; Journal article, 2020)Background The improvement in muscle strength generally exceeds the increase in muscle size following strength training in frail elderly, highlighting the complex aetiology of strength deficit in aging. The aim of this ... -
Vitamin C and E supplementation does not affect heat shock proteins or endogenous antioxidants in trained skeletal muscles during 12 weeks of strength training
Cumming, Kristoffer Toldnes; Raastad, Truls; Sørstrøm, Andreas Natvig; Paronetto, Maria Paola; Mercatelli, Neri; Ugelstad, Ingrid; Caporossi, Daniela; Paulsen, Gøran (Journal article; Peer reviewed, 2017)Background: Supplementation with large doses of antioxidants, such as vitamin C and E, has been shown to blunt some adaptations to endurance training. The effects of antioxidant supplementation on adaptations to strength ...