Blar i Norges idrettshøgskole på dokumenttype "Journal article"
Viser treff 241-260 av 2119
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Boken som mangler, ord som går på tomgang og sykt flinke jenter: kunnskap og helse
(Journal article; Peer reviewed, 2016)Sykt flinke jenter – hvordan ble det sånn? Og blir de flinke jentene mindre «(p)syke» hvis de får mer kunnskap om psykisk helse i skolen? Første del undersøker hvordan koblingen mellom flinke jenter og psykiske problemer ... -
Bone health in elite Norwegian endurance cyclists and runners: a cross-sectional study
(Journal article; Peer reviewed, 2018)Background: Athletes who compete in non-weight-bearing activities such as swimming and cycling are at risk of developing low bone mineral density (BMD). Athletes in long-distance running are at risk of low BMD. Objective: ... -
Bone health in Norwegian female elite runners: A cross-sectional, controlled study
(Peer reviewed; Journal article, 2023)Objective: The primary objective was to compare bone mineral density (BMD) in Norwegian female elite long-distance runners with a control group of inactive females. Secondary objectives were to identify cases of low BMD, ... -
Bone marrow mesenchymal stem cells in a hyaluronan scaffold for treatment of an osteochondral defect in a rabbit model
(Peer reviewed; Journal article, 2008-07-01)The purpose of this study was to evaluate the efficiency of using mesenchymal stem cells (MSC) in a hyaluronan scaffold for repair of an osteochondral defect in rabbit knee. Bone marrow was harvested from the posterior ... -
Both the "what" and "why" of youth sports participation matter: a conditional process analysis
(Journal article; Peer reviewed, 2017-04-26)This study builds on previous research combining achievement goal orientation from Achievement Goal Theory and motivational regulation from Self-Determination Theory. The aim was to assess the combination of the “what” and ... -
Branched-chain amino acid metabolism, insulin sensitivity and liver fat response to exercise training in sedentary dysglycaemic and normoglycaemic men
(Peer reviewed; Journal article, 2020)Aims/hypothesis: Obesity and insulin resistance may be associated with elevated plasma concentration of branched-chain amino acids (BCAAs) and impaired BCAA metabolism. However, it is unknown whether the insulin-sensitising ... -
Branched-chain amino acids supplementation does not accelerate recovery after a change of direction sprinting exercise protocol
(Peer reviewed; Journal article, 2022)BCAAs supplementation has been widely used for post-exercise recovery. However, no evidence is currently available to answer the question of whether BCAAs supplementation can attenuate muscle damage and ameliorate recovery ... -
Brand creation in international recurring sports events
(Journal article; Peer reviewed, 2012-05)Although recurring sports events are held more frequently and by a larger number of cities than one-off events, little research has examined the branding process within recurring events. This paper addresses this gap by ... -
Breakfast consumption and physical activity in adolescents: daily associations and hourly patterns
(Journal article; Peer reviewed, 2013-11-27)BACKGROUND: The association between breakfast consumption and physical activity (PA) is inconclusive. OBJECTIVE: We aimed to investigate daily associations and hourly patterns of PA and breakfast consumption in ... -
Breaking-up sedentary time is associated with impairment in activities of daily living
(Journal article; Peer reviewed, 2015-12)Identifying modifiable behaviors associated with prevention of activities of daily living (ADL) impairments is vital to implement preventive strategies for independent living in elderly. We aimed to examine the associations ... -
Breaststroke swimmers moderate internal work increases toward the highest stroke frequencies
(Journal article; Peer reviewed, 2015-09-18)A model to predict the mechanical internal work of breaststroke swimming was designed. It allowed us to explore the frequency–internal work relationship in aquatic locomotion. Its accuracy was checked against internal work ... -
Bronchial nitric oxide flux and alveolar nitric oxide concentration after exposure to hyperoxia
(Journal article; Peer reviewed, 2011-10-01)The fraction of nitric oxide in exhaled gas (FENO) is reduced by 30-70% after exposure to partial pressures of oxygen (Po2) of 200-240 kPa for 90 min. The purpose of this study was to partition FENO into its flow-independent ... -
Bubbles & Squat – did Dionysus just sneak into the fitness centre?
(Journal article; Peer reviewed, 2018)A Danish fitness chain recently introduced a new concept called Bubbles & Squat. Here, fitness training is combined with free champagne and music. In this paper, we examine this new way of bringing parties, alcohol and ... -
Built environment and physical activity: Domain- and activity-specific associations among Brazilian adolescents
(Journal article; Peer reviewed, 2017-07-03)Background: Physical activity is likely to be determined as a complex interplay between personal, interpersonal, and environmental factors. Studying the built environment involves expanding the focus from the individual ... -
Caffeine and performance over consecutive days of simulated competition
(Journal article; Peer reviewed, 2015-09)Purpose: Performance improvements after caffeine (CAF) ingestion are well documented when using a 1-d protocol. In numerous competitions such as the Tour de France, Tour de Ski, world championships, and National College ... -
Caffeine increases performance in cross-country double-poling time trial exercise
(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 ... -
Caffeine Increases Strength and Power Performance in Resistance-trained Females During Early Follicular Phase
(Peer reviewed; Journal article, 2020)The effects of 4 mg·kg−1caffeine ingestion on strength and power were investigated for the first time, in resistance‐trained females during the early follicular phase utilizing a randomized, double‐blind, placebo‐controlled, ... -
Calibration and cross-validation of a wrist-worn Actigraph in young preschoolers
(Journal article; Peer reviewed, 2015-02-06)Objective: To calibrate the Actigraph GT3X+ accelerometer for wrist-worn placement in young preschoolers by developing intensity thresholds for sedentary, low- and high-intensity physical activity. Furthermore, to ... -
CAM-type femoroacetabular impingement in male elite junior cross-country skiers and non-athlete controls: A cross-sectional MRI study
(Peer reviewed; Journal article, 2019)OBJECTIVES: Cross-country (CC) skiing consists of two main techniques: classic and skating. Hip motion during the skating technique is similar to that in ice skating and is considered a risk factor for femoroacetabular ... -
Can maximal voluntary pelvic floor muscle contraction reduce vaginal resting pressure and resting EMG activity?
(Journal article; Peer reviewed, 2018)Introduction and hypothesis: The purpose of the present study was to assess whether attempts at a maximal voluntary pelvic floor muscle (PFM) contraction can reduce vaginal resting pressure (VRP) and surface EMG activity ...