• The association between childhood fractures and adolescence bone outcomes: a population-based study, the Tromsø Study, Fit Futures 

      Christoffersen, Tore; Emaus, Nina; Dennison, Elaine; Furberg, Anne-Sofie; Gracia-Marco, Luis; Grimnes, Guri; Nilsen, Ole-Andreas; Vlachopoulos, Dimitris; Winther, Anne; Ahmed, Luai A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-16)
      <p><i>SUMMARY</i>: Childhood fracture may predict persistent skeletal fragility, but it may also reflect high physical activity which is beneficial to bone development. We observe a difference in the relationship between previous fracture and bone outcome across physical activity level and sex. Further elaboration on this variation is needed.</p> <p><i>PURPOSE</i>: Childhood fracture may be an ...
    • Bone mineral density at the hip and its relation to fat mass and lean mass in adolescents: the Tromsø Study, Fit Futures 

      Winther, Anne; Jørgensen, Lone; Ahmed, Luai A.; Christoffersen, Tore; Furberg, Anne-Sofie; Grimnes, Guri; Jorde, Rolf; Nilsen, Ole-Andreas; Dennison, Elaine M.; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-19)
      <p><i>Background</i>: Positive association between body weight and bone mass is well established, and the concept of body mass index (BMI) is associated with higher areal bone mineral density (aBMD) and reduced fracture risk. BMI, that comprises both fat mass (FM) and lean mass (LM) may contribute to peak bone mass achievement in different ways. This study explored the influence of body composition ...
    • Does the frequency and intensity of physical activity in adolescence have an impact on bone? The Tromsø Study, Fit Futures 

      Christoffersen, Tore; Winther, Anne; Nilsen, Ole-Andreas; Ahmed, Luai Awad; Furberg, Anne-Sofie; Grimnes, Guri; Dennison, Elaine; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-10)
      Background: Optimization of the genetic potential for bone accrual in early life may prevent future fractures. Possible modification factors include lifestyle factors such as nutrition and physical activity. Measured levels of bone mineral density (BMD) and bone mass content (BMC) are indicators of bone strength, and are correlated with fracture risk. This study explored the impact of self-reported ...
    • Fracture incidence rates in Norwegian children, The Tromsø Study, Fit Futures 

      Christoffersen, Tore; Ahmed, Luai Awad; Winther, Anne; Nilsen, Ole-Andreas; Furberg, Anne-Sofie; Grimnes, Guri; Dennison, Elaine; Center, Jacqueline R; Eisman, John A.; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-08)
      Summary: <br> This study describes childhood fracture rates in Norway, a country known for high fracture rates in the adult population. Fracture rates correspond with other reports from Scandinavia, although with a slightly higher proportion in girls. Indications of increased vulnerability during stages of puberty require further exploration. <p>Introduction: Fractures are common injuries during ...
    • The influence of birth weight and length on bone mineral density and content in adolescence: The Tromsø Study, Fit Futures 

      Christoffersen, Tore; Ahmed, Luai A.; Daltveit, Anne Kjersti; Dennison, Elaine; Evensen, Elin; Furberg, Anne-Sofie; Gracia-Marco, Luis; Grimnes, Guri; Nilsen, Ole-Andreas; Schei, Berit; Tell, Grethe S.; Vlachopoulous, Dimitris; Winther, Anne; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-02)
      <p><i>Summary</i> The influence of birth weight and length on bone mineral parameters in adolescence is unclear. We found a positive association between birth size and bone mineral content, attenuated by lifestyle factors. This highlights the impact of environmental stimuli and lifestyle during growth.</p> <p><i>Purpose</i> The influence of birth weight and length on bone mineral density and ...
    • The influence of snuff and smoking on bone accretion in late adolescence. The Tromsø study, Fit Futures 

      Nilsen, Ole-Andreas; Emaus, Nina; Christoffersen, Tore; Winther, Anne; Evensen, Elin; Thrane, Gyrd; Furberg, Anne-Sofie; Grimnes, Guri; Ahmed, Luai A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-27)
      Summary - Areal bone mineral density (aBMD) predicts future fracture risk. This study explores associations between use of tobacco and bone accretion in Norwegian adolescents. Our results indicate that use of snuff is negatively associated with accretion of aBMD in adolescence and may be a signal of increased future fracture risk.<p> <p>Purpose - Bone mineral accrual in childhood and adolescence ...
    • Leisure time computer use and adolescent bone health - findings from the Tromsø Study, Fit Futures: a cross sectional study 

      Winther, Anne; Ahmed, Luai Awad; Furberg, Anne-Sofie; Grimnes, Guri; Jorde, Rolf; Nilsen, Ole-Andreas; Dennison, Elaine; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-20)
      <p>Objectives: Low levels of physical activity may have considerable negative effects on bone health in adolescence, and increasing screen time in place of sporting activity during growth is worrying. This study explored the associations between self-reported screen time at weekends and bone mineral density (BMD). <p>Design: In 2010/2011, 1038 (93%) of the region’s first-year upper-secondary ...