Blar i NTNU Open på forfatter "Tjønna, Arnt Erik"
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Aerobic Exercise and Cardiovascular Risk Factors in Overweight and Obese Adolescents and Adults
Tjønna, Arnt Erik (Doktoravhandlinger ved NTNU, 1503-8181; 2008:234, Doctoral thesis, 2008)Kondisjonstrening og kardiovaskulære risikofaktorer blant overvektige og fete ungdommer og voksne Kondisjonstrening er vist å bedre hjerte- og blodårefunksjon hos pasienter med etablert hjerte- og karsykdom, blant de med ... -
Assessment of Cardiorespiratory Fitness and High-Intensity Interval Training after Stroke
Gjellesvik, Tor Ivar (Doctoral theses at NTNU;2021:422, Doctoral thesis, 2021) -
Cardiorespiratory fitness and sedentary time in subjects with the metabolic syndrome: A randomized controlled trial
Birkeland, Vegard (Master thesis, 2014)Metabolic syndrome (MetS) is an increasing health concern worldwide. Low cardiorespiratory fitness (CRF) and high amount of sedentary behaviors are strongly associated with the MetS and cardiovascular disease (CVD). Aerobic ... -
Cardiorespiratory reference data in Norwegian post myocardial infarction patients: A Cross-sectional study
Gjerdset Leven, Daniel (Master thesis, 2021)Sammendrag Hensikt: Å lage et referansemateriale av direkte målt peak oksygenopptak (VO2peak) og kardiovaskulære data på norske pasienter som har gjennomgått et hjerteinfarkt (MI). Metode: Maksimale og submaksimale ... -
Cardiorespiratory Reference Data in Norwegian Post-Myocardial Infarction Patients
Gran Svenningsen, Alexander Robert (Master thesis, 2021)Hensikt: Etablere objektivt målte referanseverdier med tilhørende prediksjonsmodeller for kardiorespiratoriske variabler blant norske ikke-institusjonaliserte menn og kvinner (18-79 år), som gjennomgikk hjerteinfarkt i ... -
Children´s physical activity level in association with cardiorespiratory fitness and health: The Future Kids In Daily activity (FutureKID) cross-sectional pilot study.
Brodal, Lisa Busklein (Master thesis, 2019)Bakgrunn: Overvekt og fedme blant barn og ungdom er et globalt problem. Flere studier har undersøkt problematikken, og rettet fokuset sitt mot blant annet fysisk aktivitet (FA), kardiorespiratorisk form (VO2peak) og helse ... -
Comparison of Mitochondrial Respiration in M. triceps brachii and M. vastus lateralis Between Elite Cross-Country Skiers and Physically Active Controls
Berg, Jonathan; Undebakke, Vidar; Rasch-Halvorsen, Øystein; Aakerøy, Lars; Sandbakk, Øyvind; Tjønna, Arnt Erik (Journal article; Peer reviewed, 2019)Rationale: The main purposes of this study were to compare mitochondrial respiration in M. triceps brachii and M. vastus lateralis between elite cross-country (XC) skiers and physically active controls (CON), and to explore ... -
Comparison of Physiological and Perceptual Responses to Upper-, Lower-, and Whole-Body Exercise in Elite Cross-Country Skiers
Undebakke, Vidar; Berg, Jonathan; Tjønna, Arnt Erik; Sandbakk, Øyvind (Journal article; Peer reviewed, 2019)Undebakke, V, Berg, J, Tjønna, AE, and Sandbakk, Ø. Comparison of physiological and perceptual responses to upper-, lower-, and whole-body exercise in elite cross-country skiers. J Strength Cond Res 33(4): 1086–1094, ... -
Effect of 24 sessions of high-intensity aerobic interval training carried out at either high or moderate frequency, a randomized trial
Hatle, Håvard; Støbakk, Per Kristian; Hansen, Harald Edvard Mølmen; Brønstad, Eivind; Tjønna, Arnt Erik; Steinshamn, Sigurd Loe; Skogvoll, Eirik; Wisløff, Ulrik; Ingul, Charlotte Bjørk; Rognmo, Øivind (Journal article; Peer reviewed, 2014)Purpose: The training response of an intensified period of high-intensity exercise is not clear. Therefore, we compared the cardiovascular adaptations of completing 24 high-intensity aerobic interval training sessions ... -
Effect of Aerobic Interval Training Before Gastric Bypass Surgery on Length Of Hospital Stay and Complications.
Haaland, Iselin (Master thesis, 2016)Obesity predisposes an individual to develop numerous comorbidities, including type 2 diabetes, and represents a major healthcare issue in many countries worldwide. Bariatric surgery can be an effective treatment option, ... -
Effect of Carbohydrate Content in a Pre-Event Meal on Endurance Capacity, Maximal Oxygen Uptake, Lactate Threshold, and Work Economy: a randomized controlled crossover-trial
Aandahl, Mats Holst (Master thesis, 2020)Bakgrunn: Eksogen karbohydrat (CHO) før trening påvirker metabolismen og fører til en forskyvning i valg av drivstoff under trening. Denne forskyvningen kan påvirke utholdenhetskapasiteten, energikostnaden av arbeid og ... -
Effect of carbohydrate content in a pre-event meal on endurance performance and performance-determining factors: a randomize-controlled trial.
Aandahl, Mats; Noordhof, Dionne; Tjønna, Arnt Erik; Sandbakk, Øyvind (Journal article; Peer reviewed, 2021) -
Effects of aerobic exercise intensity on depressive symptoms in patients with metabolic syndrome
Sund, Ole Kristian (Master thesis, 2020)Bakgrunn: Både metabolsk syndrom (MetS) og depresjon gir opphav til økt risiko for å utvikle livsstilssykdommer, funn tyder på at MetS og depresjon har en toveis assosiasjon. Trening har vist seg å være en effektive måte ... -
Effects of exercise intensity and nutrition advice on myocardial function in obese children and adolescents: a multicentre randomised controlled trial study protocol.
Dias, Katrin A.; Coombes, Jeff S; Green, DJ; Gomersall, SR; Keating, SE; Tjønna, Arnt Erik; Hollekim-Strand, Siri Marte; Hosseini, Mansoureh Sadat; Rø, Torstein Baade; Haram, M; Huuse, EM; Davies, PS; Cain, PA; Leong, GM; Ingul, Charlotte Bjørk (Journal article; Peer reviewed, 2016)Introduction The prevalence of paediatric obesity is increasing, and with it, lifestyle-related diseases in children and adolescents. High-intensity interval training (HIIT) has recently been explored as an alternate to ... -
Effects of High-Intensity Interval Training After Stroke (the HIIT-Stroke Study): A Multicenter Randomized Controlled Trial
Gjellesvik, Tor Ivar; Becker, Frank; Tjønna, Arnt Erik; Indredavik, Bent; Nilsen, Halvard Knut; Brurok, Berit; Tørhaug, Tom; Busuladzic, Maja; Lydersen, Stian; Askim, Torunn (Peer reviewed; Journal article, 2020)Objective To examine if 8 weeks of high-intensity interval training (HIIT) in addition to standard care would increase and maintain peak oxygen uptake (Vo2peak) more than standard care alone in patients with stroke. ... -
Effekten av kortvarig styrketrening på metabolsk helse og kroppssammensetning: En randomisert kontrollert pilotstudie
Riksfjord, Sondre (Master thesis, 2019)Bakgrunn: Overvekt, fedme og inaktivitet er et økende problem globalt, og er årsaker til millioner av dødsfall hvert år i tillegg til en enorm global kostnad. Muskelmasse har vist seg å ha en negativ korrelasjon med generell ... -
Evidence against a Beneficial Effect of Irisin in Humans
Raschke, Silja; Elsen, Manuela; Gassenhuber, Hans; Sommerfeld, Mark; Schwahn, Uwe; Brockmann, Barbara; Jung, Raphael; Wisløff, Ulrik; Tjønna, Arnt Erik; Raastad, Truls; Hallén, Jostein; Norheim, Frode; Drevon, Christian A; Romacho, Tania; Eckardt, Kristin; Eckel, Juergen (Journal article; Peer reviewed, 2013)Brown adipose tissue has gained interest as a potential target to treat obesity and metabolic diseases. Irisin is a newly identified hormone secreted from skeletal muscle enhancing browning of white fat cells, which ... -
EX-MET study: Exercise in prevention on of metabolic syndrome - A randomized multicenter trial: Rational and design
Tjønna, Arnt Erik; Ramos, Joyce S.; Pressler, Axel; Halle, Martin; Jungbluth, Klaus; Ermacora, Erika; Salvesen, Øyvind; Rodrigues, Jhennyfer; Bueno, Carlos Roberto; Munk, Peter Scott; Coombes, Jeff; Wisløff, Ulrik (Journal article; Peer reviewed, 2018)Background Metabolic syndrome substantially increases risk of cardiovascular events. It is therefore imperative to develop or optimize ways to prevent or attenuate this condition. Exercise training has been long recognized ... -
High intensity interval training in reduction of anxiety symptoms in adults with the metabolic syndrome: Secondary analyses from the multicenter study EX-MET
Hagen, Linn Marita (Master thesis, 2020)Sammendrag Bakgrunn. Angstlidelser er assosiert med utviklingen- og progresjon av kardiovaskulære sykdommer. Økt prevalens av angstsymptomer hos individer med metabolsk syndrom har nylig blitt rapportert. Individer med ... -
High-intensity interval training improves obstructive sleep apnoea
Karlsen, Trine; Nes, Bjarne; Tjønna, Arnt Erik; Engstrøm, Morten; Støylen, Asbjørn; Steinshamn, Sigurd Loe (Journal article; Peer reviewed, 2017)Background Three hours per week of vigorous physical activity is found to be associated with reduced odds of sleep-disordered breathing. Aim To investigate whether 12 weeks of high-intensity interval training (HIIT) ...