Now showing items 21-40 of 75

    • Trening ute eller inne? Rapport fra et prosjekt med datainnsamling under Forskningsdagene 2012. 

      Calogiuri, Giovanna; Weydahl, Andi; Mikkilä, Saija P.; Nordtug, Hildegunn; Horgen, Katinka; Raanaas, Ruth Kjærsti; Patil, Grete Grindal; Ihlebæk, Camilla Martha (Research report; Forskningsrapport, 2013-07-10)
    • 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)
    • Barn og fysisk aktivitet i barnehagen: Hvordan kan aktivitetsnivået dokumenteres? 

      Stokke, Anne; Weydahl, Andi; Calogiuri, Giovanna (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Vi målte det fysiske aktivitetsnivået til 42 barn i løpet av en vanlig dag i barnehagen ved hjelp av ulike instrumenter. Denne studien vil gi kunnskap om barns fysiske aktivitet i barnehagen, og om barnas aktivitetsnivå kan bli tilstrekkelig evaluert av lærerne eller om det er behov for tekniske målinger. Videre har vi sammenlignet de ulike instrumentene brukt i observasjonen. De ansatte i barnehagen ...
    • Anthropometric factors related to sprint and agility performance in young male soccer players 

      Mathisen, Gunnar; Pettersen, Svein Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-05)
      Objective: To investigate the relationship between anthropometrics and sprint and agility performance and describe the development of sprint (acceleration) and agility performance in 10- to 16-year-old male soccer players. <p>Methods: One hundred and thirty-two participants were divided into three age groups, 10–12 years (mean 10.8±0.50), 13–14 years (mean 13.9±0.50), and 15–16 years (mean 15.5±0.24), ...
    • Aerobic Games and Playful Exercises in 9-Year-Old Boys: Intensity and Fitness Effects 

      Mathisen, Gunnar; Jensen, Rein Magnus; Pettersen, Svein Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Previous research on exercise for pre-adolescents with the purpose of improving aerobic fitness levels has yielded contradictory results. Sufficient training intensity, frequency and duration are the crucial factors in achieving this goal; the question, however, is whether it is possible to reach sufficient intensity levels using aerobic games and playful exercises. Variety and fun are the important ...
    • 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 ...
    • 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. ...
    • Physical activity, resting heart rate, and atrial fibrillation: the Tromsø Study 

      Morseth, Bente; Graff-Iversen, Sidsel; Jacobsen, Bjarne K.; Jørgensen, Lone; Nyrnes, Audhild; Thelle, Dag Steinar; Vestergaard, Peter; Løchen, Maja-Lisa (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-10)
      Aims: The objective was to examine the association of physical activity and resting heart rate (RHR) with hospital-diagnosed atrial fibrillation (AF) in a Norwegian cohort. <p> Methods and Results: This prospective study included 20 484 adults (50.3% men) who participated in the third Tromsø Study survey in 1986-1987. At baseline, physical activity was assessed by a validated questionnaire, and ...
    • Motor competence and implications in primary school 

      Mathisen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-25)
      The level of motor competence for six-year-old children are of special interest because at this age they have started at school, and they have to master new requirements. Ninety-four children were tested in fine- and gross- motor skills, by the Movement ABC test. Within the fifth percentile of the USA norms, 9.6 % of the children would have to be classified as to have motor problems, with 11.7% ...
    • 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.
    • Kicking velocity and effect on match performance when using a smaller, lighter ball in women's football 

      Andersen, Thomas Bull; Krustrup, Peter; Bendiksen, Mads; Ørntoft, Christina; Randers, Morten B.; Pettersen, Svein Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-23)
      The present study evaluated the effect of a smaller, lighter ball on kicking speed and technical- tactical and physical match performance in high-level adult female footballers. In the laboratory test setting, the peak ball velocity was 6 % higher with the new ball (NB) than the standard ball (SB) (26.5 ± 0.5 vs. 25.1 ± 0.5 m · s − 1, p < 0.05). However, during match-play, no differences ...
    • 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 ...
    • The physiological mechanisms of performance enhancement with sprint interval training differ between the upper and lower extremities in humans 

      Zinner, Christoph; Morales-Alamo, David; Ørtenblad, Niels; Larsen, Filip J; Schiffer, Tomas A; Willis, Sarah J; Gelabert-Rebato, Miriam; Perez-Valera, Mario; Boushel, Robert; Calbet, Jose AL; Holmberg, Hans-Christer (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-30)
      To elucidate the mechanisms underlying the differences in adaptation of arm and leg muscles to sprint training, over a period of 11 days 16 untrained men performed six sessions of 4–6 × 30-s all-out sprints (SIT) with the legs and arms, separately, with a 1-h interval of recovery. Limb-specific VO2peak, sprint performance (two 30-s Wingate tests with 4-min recovery), muscle efficiency and ...
    • Secular trends and correlates of physical activity: The Tromsø Study 1979-2008 

      Morseth, Bente; Jacobsen, Bjarne K.; Emaus, Nina; Wilsgaard, Tom; Jørgensen, Lone (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-03)
      <b>Background: </b>The aim was to describe secular trends in leisure time physical activity (LTPA) and work related physical activity (WPA) from 1979 to 2008. Additionally, we explored potential cross-sectional and longitudinal correlates of LTPA and WPA.<br> <b>Methods:</b> Data are collected from 34,898 individuals (49.7% men) aged >20 years who participated in at least one Tromsø Study survey ...

      Weydahl, Andi (Conference object; Konferansebidrag, 2017)
      Our research takes place at 70oN. Where the sun is above the horizon for 8 weeks during summer, midnight sun and below the horizon for 8 weeks during winter, polar night. Earlier we found that adults with different chronotypes responded differently to exercise performed in day-light or darkness1. During the polar night evening (E) and neither (N) -types respond to training better than morning (M) ...
    • 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 ...
    • 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>, ...
    • Instant Biofeedback Provided by Wearable Sensor Technology Can Help to Optimize Exercise and Prevent Injury and Overuse 

      Düking, Peter; Holmberg, Hans-Christer; Sperlich, Billy (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-03)
      With great interest, we have been following the developing variety and popularity of commercially available wearable sensor technologies, as well as the discussion concerning their usefulness for improving fitness and health (Duking et al., 2016; Halson et al., 2016; Sperlich and Holmberg,2016). Although many of these devices may not necessarily fulfill scientific criteria for quality (Sperlich and ...
    • 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, ...
    • 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 ...