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norskIdrettshøgskolen: Recent submissions
Now showing items 61-80 of 159
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Foreldreinvolvering i idrett i et utviklingsmiljø. En studie av foreldres betydning for idrettsdeltakelse i et utviklingsmiljø blant talentfulle skiutøvere
(Master thesis; Mastergradsoppgave, 2019-05-15)Studien ser på foreldreinvolvering i skiidrett. Nærmere bestemt er temaet for studien å undersøke hvilken betydning foreldre har for unge utøveres idrettsdeltakelse i et talent- og utviklingsmiljø. Nordlysbyen Ski, som er et konkurranse- og treningsfellesskap for unge skiutøvere, er her valgt som case. Forskningsspørsmålene som stilles er: Hvilke ressurser bidrar foreldrene med til talentfulle ... -
Pacing Strategy in Long Distance Cross-Country Skiing. A study looking at female and male cross-country skiers at different performance level and how the track topography may influence their pacing strategy.
(Master thesis; Mastergradsoppgave, 2019-05-14)Bakgrunn: Løpsutviklingen som utholdenhetsidretter har stor innflytelse på prestasjonen. Selv om flere studier har undersøkt løpsutvikling i flere idretter, er det lite informasjon om løpsutviklingen til langdistanse langrennsløpere, og for begge kjønn. Denne masteroppgaven undersøker hva slags løpsutviklingen utøverne adapterer i et langdistanseløp, og om ulike terreng vil påvirke deres løpsutvikling. ... -
Seasonal variations in objectively assessed physical activity among people with COPD in two Nordic countries and Australia: a cross-sectional study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-05)<i>Purpose</i>: Seasons and weather conditions might influence participation in physical activity and contribute to differences between countries. This study aimed at investigating whether there were differences in physical activity levels between Norwegian, Danish and Australian people with chronic obstructive pulmonary disease (COPD), and establishing if any variations in physical activity were ... -
Resource rent in aquaculture
(Chapter; Bokkapittel, 2019)Resource rent in aquaculture (RRA) is any payment to a farm and site owner, on land or sea, in excess of the costs needed to bring that farm into production. For analytic and policy purposes it may be useful to distinguish among different types of RRA. Three types will be discussed: rent associated with the classical economists Ricardo (1821) and Faustmann (1849), as well as oligopoly rent from ... -
Naturguidens rolle i det bærekraftige reiselivet på Svalbard.
(Master thesis; Mastergradsoppgave, 2019-05-15)Sammendrag. Hovedformålet med denne studien var å forstå hvordan naturguidens rolle i et bærekraftig reiseliv ble opplevd og forstått av naturguider og guidemanagere på Svalbard. Det teoretiske rammeverket bestod av; bærekraftig utvikling og reiseliv, naturbasert turisme, naturguiden, friluftsliv og reiseliv og økofilosofi. Litteraturgjennomgangen viser at det eksisterer lite forskning på naturguidens ... -
En casestudie av Ski- og Skredworkshopen i Sogndal - med fokus på menneskelige faktorer
(Master thesis; Mastergradsoppgave, 2019-05-15)I Norge var det flere dødsfall som følge av snøskred sesongen 2018/19 enn det har vært på mange år. De fleste snøskredulykkene som involverer folk med kunnskap om snøskred er en følge av menneskelige faktorer. Selv om mange har kunnskapen som skal til for å holde seg trygge, fører menneskelige faktorer til at de ikke klarer å benytte denne kunnskapen for å unngå å havne i snøskredulykker. I denne ... -
The Potential Usefulness of Virtual Reality Systems for Athletes: A Short SWOT Analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-05)Virtual reality (VR) systems (Neumann et al., 2017), which are currently receiving considerable attention from athletes, create a two- or three-dimensional environment in the form of emulated pictures and/or video-recordings where in addition to being mentally present, the athlete even often feels like he/she is there physically as well. As she/he interacts with and/or reacts to this environment, ... -
Impact of incline, sex and level of performance on kinematics during a distance race in classical cross-country skiing
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-01)Here, female and male elite cross-country (XC) skiers were compared on varying terrain during an official 10-km (women) and 15-km (men) Norwegian championship race. On the basis of race performance, 82 skiers were classified as fast (FS) (20 women, 20 men) or slower (SS) (21, 21) skiers. All were video recorded on flat (0°), intermediate (3.5°), uphill (7.1°) and steep uphill (11°) terrain during ... -
The Olympic biathlon - Recent advances and perspectives after pyeongchang
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-02)The biathlon, combining cross-country ski skating with rifle marksmanship, has been an Olympic event since the Winter Games in Squaw Valley, United States, in 1960. As a consequence of replacing the classical with the skating technique in the 1980s, as well as considerable improvements in equipment and preparation of ski tracks and more effective training, the average biathlon skiing speed has ... -
A 4-Week Intervention Involving Mobile-Based Daily 6-Minute Micro-Sessions of Functional High-Intensity Circuit Training Improves Strength and Quality of Life, but Not Cardio-Respiratory Fitness of Young Untrained Adults
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-09)The present study was designed to assess the psycho-physiological responses of physically untrained individuals to mobile-based multi-stimulating, circuit-like, multiplejoint conditioning (Circuit<sub>HIIT</sub>) performed either once (1xCircuit<sub>HIIT</sub>) or twice (2xCircuit<sub>HIIT</sub>) daily for 4 weeks. In this single-center, two-arm randomized, controlled study, 24 men and women (age: ... -
Developments in the biomechanics and equipment of Olympic cross-country skiers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-24)Here, our aim was to describe the major changes in cross-country (XC) skiing in recent decades, as well as potential future developments. XC skiing has been an Olympic event since the very first Winter Games in Chamonix, France, in 1924. Over the past decades, considerable developments in skiing techniques and improvements in equipment and track preparation have increased skiing speed. In contrast ... -
The influence of physiobiomechanical parameters, technical aspects of shooting, and psychophysiological factors on biathlon performance: A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-08)The biathlon, an Olympic sporting discipline that combines cross-country skiing with rifle marksmanship, entails considerable physiological demands, as well as fine motor control while shooting after intense exercise and under mental pressure. Although much of our knowledge about cross-country skiing is probably also applicable to the biathlon, carrying the rifle and shooting under stress make ... -
Pacing and predictors of performance during cross-country skiing races: A systematic review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-15)<i>Background</i>: Cross-country skiing (XCS) racing, a popular international winter sport, is complex and challenging from physical, technical, and tactical perspectives. Despite the vast amount of research focusing on this sport, no review has yet addressed the pacing strategies of elite XCS racers or the factors that influence their performance. The aim was to review the scientific literature ... -
Macro-kinematic differences between Sprint and Distance cross-country skiing competitions using the classical technique
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-17)We compare the macro-kinematics of six elite female cross-country skiers competing in 1.1-km Sprint and 10.5-km Distance classical technique events on consecutive days under similar weather and track conditions. The relative use of double pole (DP), kick-double pole (KDP), diagonal stride (DS), tucking (Tuck) and turning (Turn) subtechniques, plus each technique’s respective velocities, cycle ... -
Following a long-distance classical race the whole-body kinematics of double poling by elite cross-country skiers are altered
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-25)Introduction: <br>Although short-term (approximately 10-min) fatiguing DP has been reported not to alter the joint kinematics or displacement of the centre of mass (COM) of high-level skiers, we hypothesize that prolonged DP does change these kinematics, since muscular strength is impaired following endurance events lasting longer than 2 h. <br>Methods:<br> During the 58-km Marcialonga race ... -
Integrated framework of load monitoring by a combination of smartphone applications, wearables and point-of-care testing provides feedback that allows individual responsive adjustments to activities of daily living
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-19)Athletes schedule their training and recovery in periods, often utilizing a pre-defined strategy. To avoid underperformance and/or compromised health, the external load during training should take into account the individual’s physiological and perceptual responses. No single variable provides an adequate basis for planning, but continuous monitoring of a combination of several indicators of ... -
The muscle fiber profiles, mitochondrial content, and enzyme activities of the exceptionally well-trained arm and leg muscles of elite cross-country skiers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-02)As one of the most physically demanding sports in the Olympic Games, crosscountry skiing poses considerable challenges with respect to both force generation and endurance during the combined upper- and lower-body effort of varying intensity and duration. The isoforms of myosin in skeletal muscle have long been considered not only to define the contractile properties, but also to determine metabolic ... -
Prolonged sitting interrupted by 6-min of high-intensity exercise: Circulatory, metabolic, hormonal, thermal, cognitive, and perceptual responses
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-16)The aim was to examine certain aspects of circulatory, metabolic, hormonal, thermoregulatory, cognitive, and perceptual responses while sitting following a brief session of high-intensity interval exercise. Twelve students (five men; age, 22 ± 2 years) performed two trials involving either simply sitting for 180 min (SIT) or sitting for this same period with a 6-min session of high-intensity ... -
The Training of Olympic Alpine Ski Racers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-21)Alpine combined was the only alpine ski racing event at the first Winter Olympic Games in 1936, but since then, slalom, giant slalom, super-G, downhill, and team events have also become Olympic events. Substantial improvements in slope preparation, design of courses, equipment, and the skills of Olympic alpine skiers have all helped this sport attain its present significance. Improved snow ... -
Whole-body vibrations associated with alpine skiing: A risk factor for low back pain?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-09)Alpine skiing, both recreational and competitive, is associated with high rates of injury. Numerous studies have shown that occupational exposure to whole-body vibrations is strongly related to lower back pain and some suggest that, in particular, vibrations of lower frequencies could lead to overuse injuries of the back in connection with alpine ski racing. However, it is not yet known which ...
