• Cohort profile: the Norwegian Registry of Persons Assessed for Cognitive Symptoms (NorCog) - a national research and quality registry with a biomaterial collection 

      Medbøen, Ingrid Tøndel; Persson, Karin Ester Torun; Nåvik, Marit; Totland, Torunn Holm; Bergh, Sverre; Treviño, Cathrine Selnes; Ulstein, Ingun; Engedal, Knut; Knapskog, Anne Brita; Brækhus, Anne; Øksengård, Anne Rita; Horndalsveen, Peter Otto; Saltvedt, Ingvild; Lyngroth, Anne Liv; Ranhoff, Anette Hylen; Skrettingland, Dagny B; Naik, Mala; Soares, Jelena Zugic; Johnsen, Bente; Selbæk, Geir (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-08)
      Purpose - The Norwegian Registry of Persons Assessed for Cognitive Symptoms (NorCog) was established to harmonise and improve the quality of diagnostic practice across clinics assessing persons with cognitive symptoms in Norwegian specialist healthcare units and to establish a large research cohort with extensive clinical data.<p> <p>Participants - The registry recruits patients who are referred ...
    • Grip strength in men and women aged 50–79 years is associated with non-vertebral osteoporotic fracture during 15 years follow-up: The Tromsø Study 1994–1995 

      Søgaard, Anne-Johanne; Magnus, Jeanette H.; Bjørnerem, Åshild; Holvik, Kristin; Ranhoff, Anette Hylen; Emaus, Nina; Meyer, Haakon E; Strand, Bjørn Heine (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-25)
      <p><i>Summary - </i>In 50–79-year-olds who participated in the Tromsø Study (1994–1995), the risk of non-vertebral osteoporotic fractures during 15 years follow-up increased by 22% in men and 9% in women per 1 SD lower grip strength. The strongest association was observed in men aged 50–64 years. <p><i>Introduction - </i>We aimed to explore whether low grip strength was associated with increased ...
    • Increased risk of atrial fibrillation among elderly Norwegian men with a history of long-term endurance sport practice 

      Myrstad, Marius; Løchen, Maja-Lisa; Graff-Iversen, Sidsel; Gulsvik, Anne Kristine; Thelle, Dag Steinar; Stigum, Hein; Ranhoff, Anette Hylen (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-11-21)
      Atrial fibrillation (AF) is the most common cardiac arrhythmia. The prevalence increases with increasing age. In middle-aged men, endurance sport practice is associated with increased risk of AF but there are few studies among elderly people. The aim of this study was to investigate the role of long-term endurance sport practice as a risk factor for AF in elderly men. A crosssectional study ...
    • Lower bone mineral density in older female endurance skiers – a cross-sectional, observational study 

      Gulsvik, Anne Kristine; Myrstad, Marius; Landgraff, Ida Wilson; Emaus, Nina; Ranhoff, Anette Hylen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-17)
      <p><i>Background</i>: Physical activity (PA) is generally beneficial for bone health, but the effect of high levels of PA over many years, in older women, is unknown.</p> <p><i>Methods</i>: T-score from Dual-energy X-ray absorptiometry (DXA), and self-reported baseline characteristics were recorded for 24 female, cross-country-skiing-competitors, aged 68–76 years, from the Birkebeiner Ageing ...
    • Rationale and design of the Birkebeiner Ageing Study – a prospective cohort study of older endurance athletes 

      Myrstad, Marius; Johansen, Kristoffer Robin; Sørensen, Eivind; Ranhoff, Anette Hylen (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-13)
      Background - While regular physical activity is associated with reduced mortality and morbidity in general populations, health outcomes and functional capacity related to upholding strenuous endurance exercise beyond the age of 65 years are only sparsely studied. The aim of this study is to assess associations of prolonged strenuous endurance sport practice with ageing, functional decline, morbidity ...
    • Risk of atrial fibrillation and stroke among older men exposed to prolonged endurance sport practice: a 10-year follow-up. The Birkebeiner Ageing Study and the Tromsø Study 

      Johansen, Kristoffer Robin; Ranhoff, Anette Hylen; Sørensen, Eivind; Nes, Bjarne; Heitmann, Kim Arne; Apelland, Turid; Bucher Sandbakk, Silvana; Wilsgaard, Tom; Løchen, Maja-Lisa; Thelle, Dag Steinar; Morseth, Bente; Myrstad, Marius (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-17)
      <p><b> Aims</b> Endurance sport practice is associated with a high prevalence of atrial fibrillation (AF), which increases the risk of stroke in the general population. However, stroke risk in endurance athletes with AF is sparsely investigated. Most studies have been limited by design and are largely restricted to younger and middle-aged populations. Thus, we aimed to investigate AF and stroke ...