Browsing Norges idrettshøgskole by Subject "physiology"
Now showing items 1-20 of 20
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A pedometer-based walking intervention in 45- to 75-year-olds, with and without practice nurse support: The PACE-UP three-arm cluster RCT
(Journal article; Peer reviewed, 2018) -
Cardiorespiratory fitness and physical activity following lung transplantation: A national cohort study
(Peer reviewed; Journal article, 2020)Background: Low cardiorespiratory fitness and inactivity are common after lung transplantation (LTx). The causes of exercise intolerance are incompletely understood. Objectives: The aim of this study was to objectively ... -
Cardiorespiratory fitness assessment using risk-stratified exercise testing and dose–response relationships with disease outcomes
(Peer reviewed; Journal article, 2021)Cardiorespiratory fitness (CRF) is associated with mortality and cardiovascular disease, but assessing CRF in the population is challenging. Here we develop and validate a novel framework to estimate CRF (as maximal oxygen ... -
Cardiorespiratory fitness on a treadmill in an adult cystic fibrosis population
(Peer reviewed; Journal article, 2020)Objectives: (1) To describe the cardiorespiratory fitness (CRF) in an adult cystic fibrosis population related to sex and age, (2) to evaluate the cause of low CRF and (3) to study the association between peak oxygen uptake ... -
The causal pathway effects of a physical activity intervention on adiposity in children: The KISS Study cluster randomized clinical trial
(Peer reviewed; Journal article, 2020)Background: Very little information on the potential mechanisms of the physical activity interventions effects on adiposity is available. We evaluated the possible mediating factors of a physical activity school‐based ... -
DNA methylation across the genome in aged human skeletal muscle tissue and muscle‑derived cells: The role of HOX genes and physical activity
(Peer reviewed; Journal article, 2020)Skeletal muscle tissue demonstrates global hypermethylation with age. However, methylome changes across the time-course of differentiation in aged human muscle derived cells, and larger coverage arrays in aged muscle tissue ... -
Do physical activity and aerobic fitness moderate the association between birth weight and metabolic risk in youth?: the European youth heart study
(Journal article; Peer reviewed, 2010-10-04)OBJECTIVE: Lower birth weight has been associated with a greater risk of metabolic diseases. The aim of this study was examine whether physical activity and aerobic fitness may modify associations between birth weigh and ... -
Does birth weight influence physical activity in youth? a combined analysis of four studies using objectively measured physical activity
(Journal article; Peer reviewed, 2011-01-12)Animal models suggest growth restriction in utero leads to lower levels of motor activity. Furthermore, individuals with very low birth weight report lower levels of physical activity as adults. The aim of this study was ... -
The effects of being told you are in the intervention group on training results: A pilot study
(Peer reviewed; Journal article, 2023)Little is known about the placebo effects when comparing training interventions. Consequently, we investigated whether subjects being told they are in the intervention group get better training results compared to subjects ... -
Heat flow, heat capacity and thermal resistance of localized surfaces of the human body using a new calorimetric sensor
(Peer reviewed; Journal article, 2021)A non-invasive sensor equipped with a programmable thermostat has been developed to assess in vivo the heat flow transmitted by conduction from human skin to the sensor thermostat. This device enables the assessment of the ... -
Human skeletal muscle plasmalemma alters its structure to change its Ca2+-handling following heavy-load resistance exercise
(Journal article; Peer reviewed, 2017)High-force eccentric exercise results in sustained increases in cytoplasmic Ca2+ levels ([Ca2+]cyto), which can cause damage to the muscle. Here we report that a heavy-load strength training bout greatly alters the structure ... -
Hypoadiponectinemia in overweight children contributes to a negative metabolic risk profile 6 years later
(Peer reviewed; Journal article, 2009-08-27)Prognostic biomarkers are needed to identify children at increased cardiometabolic risk. The objective was to study whether markers of metabolism and inflammation, for example, circulating plasma adiponectin, leptin, ... -
In-season strength maintenance training increases well-trained cyclists’ performance
(Journal article; Peer reviewed, 2010-08-27)We investigated the effects of strength maintenance training on thigh muscle cross-sectional area (CSA), leg strength, determinants of cycling performance, and cycling performance. Well-trained cyclists completed either ... -
The International Olympic Committee Consensus Statement on age determination in high-level young athletes
(Journal article; Peer reviewed, 2010-06) -
Maximal Heart Rate for Swimmers
(Peer reviewed; Journal article, 2019)The main purpose of this study was to identify whether a different protocol to achieve maximal heart rate should be used in sprinters when compared to middle-distance swimmers. As incorporating running training into swim ... -
Objectively Measured Time Spent Sedentary Is Associated With Insulin Resistance Independent of Overall and Central Body Fat in 9- to 10-Year-Old Portuguese Children
(Peer reviewed; Journal article, 2007-12-10)OBJECTIVE—We examined the independent relationships between objectively measured physical activity and insulin resistance in Portuguese children. RESEARCH DESIGN AND METHODS—This is a school-based, cross-sectional study ... -
Rate of force development relationships to muscle architecture and contractile behavior in the human vastus lateralis
(Peer reviewed; Journal article, 2022)In this study, we tested the hypotheses that (i) rate of force development (RFD) is correlated to muscle architecture and dynamics and that (ii) force–length–velocity properties limit knee extensor RFD. Twenty-one healthy ... -
Recommended aerobic fitness level for metabolic health in children and adolescents: a study of diagnostic accuracy
(Journal article; Peer reviewed, 2010)Objective To define the optimal cut-off for low aerobic fitness and to evaluate its accuracy to predict clustering of risk factors for cardiovascular disease in children and adolescents. Design Study of diagnostic ... -
Sarcolab pilot study into skeletal muscle’s adaptation to long-term spaceflight
(Journal article; Peer reviewed, 2018)Spaceflight causes muscle wasting. The Sarcolab pilot study investigated two astronauts with regards to plantar flexor muscle size, architecture, and function, and to the underlying molecular adaptations in order to further ... -
Young female handball players and sport specialisation: how do they cope with the transition from primary school into a secondary sport school?
(Journal article; Peer reviewed, 2016-09-06)Objective: The aim of the present study was to examine how six young female handball players (aged 13-14 years) perceived the transition from primary school to a sport specialized secondary school. Methods: Physical and ...