• Chronotype and response to training during the polar night: a pilot study 

      Vitale, Jacopo Antonino; Bjørkesett, Eva; Campana, Andrea; Panizza, Giacomo; Weydahl, Andi (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-19)
      Background:<br> An individual’s chronotype influences his or her physiological rhythms. Some studies have looked at the effect of time of day on the responses to exercise, but studies on the effect of long-term training are lacking. <br>Objective:<br> To report the effects of an 8-week training period during the polar night in non- athletes of different chronotypes living at 70°N. <br>Design:<br> ...
    • Chronotype, Physical Activity, and Sport Performance: A Systematic Review 

      Vitale, Jacopo Antonino; Weydahl, Andi (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-11)
      Background:<br> Many variables related to sport have been shown to have circadian rhythms. Chronotype is the expression of circadian rhythmicity in an individual, and three categories of chronotype are defined: morning types (M-types), evening types (E-types), and neither types (N-types). M-types show earlier peaks of several psychophysiological variables during the day than E-types. The effect ...
    • Communicating public avalanche warnings – what works? 

      Engeset, Rune; Pfuhl, Gerit; Landrø, Markus; Mannberg, Andrea; Hetland, Audun (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-20)
      Like many other mountainous countries, Norway has experienced a rapid increase in both recreational winter activities and fatalities in avalanche terrain during the past few decades: during the decade 2008–2017, 64 recreational avalanche fatalities were recorded in Norway. This is a 106% increase from that of the previous decade. In 2013, Norway therefore launched the National Avalanche Warning ...
    • A comparison between two different conditions of breaking up sedentary behaviour on glucose metabolism 

      Sagelv, Edvard Hamnvik; Ekelund, Ulf; Stensrud, Trine (Conference object; Konferansebidrag, 2016-05-30)
      Conclusion: There is no effect of either breaking up sedentary behaviour each hour or performing 30 minutes of vigorous physical activity in one bout compared with prolonged sitting for six hours on glucose metabolism.
    • Comparison of Long and Short High-Intensity Interval Exercise Bouts on Running Performance, Physiological and Perceptual Responses 

      Valstad, Sverre; Heimburg, Erna von; Welde, Boye; van den Tillaar, Roland (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-18)
      This study compared the effects of long (4×4 min) and short intervals (4×8×20 s) of high-intensity interval exercise bouts (HIIT) on running performance, physiological and perceptual responses, and excess postexercise oxygen consumption (EPOC). Twelve healthy college students (8 men, 4 women; mean age=22±2 years) performed long (90–95% of peak heart rate) and short intervals (maximal intensity) of ...
    • Comparison of non-invasive individual monitoring of the training and health of athletes with commercially available wearable technologies 

      Düking, Peter; Hotho, Andreas; Holmberg, Hans-Christer; Sperlich, Billy (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-09)
      Athletes adapt their training daily to optimize performance, as well as avoid fatigue, overtraining and other undesirable effects on their health. To optimize training load, each athlete must take his/her own personal objective and subjective characteristics into consideration and an increasing number of wearable technologies (wearables) provide convenient monitoring of various parameters. ...
    • Den norske idrettsmodellen - i utakt med tiden? 

      Rafoss, Kolbjørn; Tangen, Jan Ove (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      I artikkelen drøftes spørsmålet om den norske idrettsmodellen er i utakt med tiden. Vi svarer ja på spørsmålet. Dette skyldes en utdatert måte å tenke idrett og politikk på. Det foreligger en kulturell fortelling – den norske idrettsmodellen – som hindrer innsikt i og forståelse for nye trender og endringer i befolkningens fysiske og idrettslige utfoldelse. Idrettsmodellen tar utgangspunkt i at ...
    • Development through Movement - Psycho-pedagogical Analysis and Psychomotori Approaches 

      Zoglowek, Herbert Gottfried; Aleksandrovich, Maria (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      This paper discusses psychomotor development in early childhood and consists of three parts. The first part is a brief historical overview of the theoretical description and analysis of movement. The second part gives an overview of the variety of movement therapies and activity methods, which are effective in kindergarten work. The third part of the paper is an attempt to analyse and to reflect on ...
    • Developments in the biomechanics and equipment of Olympic cross-country skiers 

      Pellegrini, Barbara; Stoggl, Thomas Leonhard; Holmberg, Hans-Christer (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 ...
    • Effects of school-based intervention program on motor performance skills 

      Mathisen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-26)
      The purpose of this study was to identify the effects of a four-week intervention program on motor skill performance in primary school children. Twenty-one children with mean age of 6.5 ± 0.7 years participated. The experimental group (EG) followed a specific movement program in three basic tasks: throwing, climbing, and jumping. The control group (CG) carried out an ordinary physical education ...
    • Effects of Speed Exercises on Acceleration and Agility Performance in 13-Year-Old Female Soccer Players 

      Mathisen, Gunnar; Danielsen, Karin Helene (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Effects of upper-body sprint-interval training on strength and endurance capacities in female cross-country skiers 

      Vandbakk, Kristine; Welde, Boye; Hovstein, Andrea; Baumgart, Julia Kathrin; Ettema, Gertjan; Karlsen, Trine; Sandbakk, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-27)
      Thermal conductivity and thermal diffusivity of ionic liquids (ILs) are investigated in this work. A hot disk method for ILs thermal conductivity and thermal diffusivity measurement is utilized. Firstly, the thermal conductivity of water is measured to check the reliability of the hot disk method. In addition, the thermal conductivity of pure ILs, including BmimBF<sub>4</sub>, BmimPF<sub>6</sub>, ...
    • Et blikk på barns vikår for fysisk aktivitet i barnehager. En komparativ studie, 1981 og 2009 

      Stokke, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-01-01)
      Forskning viser at det fysiske miljøet er en nøkkeldeterminant for barns fysiske aktivitetsnivå. I Rammeplan for barnehagens innhold og oppgaver står det: Barnehagen skal ha areal og utstyr nok, tilby gode oppvekstmiljø som er både trygge og utfordrende og som skal fremme læring og mestring (KD 2006). I denne artikkelen presenteres resultater fra en landsrepresentativ kvantitativ spørreundersøkelse ...
    • Et blikk på barns vilkår for fysisk aktivitet inne i barnehager : en komparativ studie, 1981 og 2009 

      Stokke, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-01-01)
      Det fysiske miljøet har betydning for barns lek og læring og det er viktig for kvaliteten i barnehagers virksomhet. Hvilke innemiljø tilbys barna, hvor mye tid får barna til lek inne og hvilke restriksjoner finnes knyttet til fysisk aktiv lek? Artikkelen vil især fokusere på kroppslig lek og endringer over tid. Derfor vil resultatene fra en landsrepresentativ kvantitativ spørreundersøkelse i norske ...
    • Evening melatonin in January after changes in hours of habitual exercise during fall among youths living in the subarctic. 

      Weydahl, Andi (Journal article; Tidsskriftartikkel; Peer reviewed, 1994)
      Secretion of the hormone melatonin shows a circadian rhythm and is inhibited by light. Light therapy with phase shifting of the melatonin rhythm has been used as treatment of sleeping problems and seasonal affective disorders (SAD). Exercise has also been shown to suppress the melatonin secretion. In order to investigate the effect of increased level of habitual physical activity upon ...
    • Familie og venners rolle i rekruttering og utvikling av idrettstalent 

      Rønbeck, Nils-Fredrik (Research report; Forskningsrapport, 2006)
    • Following a long-distance classical race the whole-body kinematics of double poling by elite cross-country skiers are altered 

      Zoppirolli, Chiara; Bortolan, Lorenzo; Stella, Federico; Boccia, Gennaro; Holmberg, Hans-Christer; Schena, Federico; Pellegrini, Barbara (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 ...
    • Foreldreoppfatninger av skole-hjemsamarbeidet 

      Rønbeck, Nils-Fredrik; Rønbeck, Ann Elise (Research report; Forskningsrapport, 2010)
    • Functional High-Intensity Circuit Training Improves Body Composition, Peak Oxygen Uptake, Strength, and Alters Certain Dimensions of Quality of Life in Overweight Women 

      Sperlich, Billy; Wallmann-Sperlich, Birgit; Zinner, Christoph; Von Stauffenberg, Valerie; Losert, Heidrun; Holmberg, Hans-Christer (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-03)
      The effects of circuit-like functional high-intensity training (Circuit<sub>HIIT</sub>) alone or in combination with high-volume low-intensity exercise (Circuit<sub>combined</sub>) on selected cardio-respiratory and metabolic parameters, body composition, functional strength and the quality of life of overweight women were compared. In this single-center, two-armed randomized, controlled study, ...