• The association between gastrointestinal injury, complaints, and food intake in 60-km ultramarathon runners 

      van Venrooij, Niek F.J.; Wardenaar, Floris C.; Hoogervorst, Daan; Senden, Joan M.G.; van Dijk, Jan-Willem; Jonvik, Kristin Lundanes (Peer reviewed; Journal article, 2022)
      We aimed to assess the association between gastrointestinal (GI) injury, complaints, and food intake in 60-km ultramarathon runners. Thirty-three ultramarathon runners provided pre- and post-race blood samples for assessment ...
    • Dietary inorganic nitrate as an ergogenic aid: An expert consensus derived via the modified Delphi technique 

      Shannon, Oliver M.; Allen, Jason D.; Bescos, Raul; Burke, Louise; Clifford, Tom; Easton, Chris; Gonzalez, Javier T.; Jones, Andrew M.; Jonvik, Kristin Lundanes; Larsen, Filip J.; Peeling, Peter; Piknova, Barbora; Siervo, Mario; Vanhatalo, Anni; McGawley, Kerry; Porcelli, Simone (Peer reviewed; Journal article, 2022)
      Introduction: Dietary inorganic nitrate is a popular nutritional supplement, which increases nitric oxide bioavailability and may improve exercise performance. Despite over a decade of research into the effects of dietary ...
    • Dietary Nitrate and Nitric Oxide Metabolism Mouth, Circulation, Skeletal Muscle, and Exercise Performance 

      Jones, Andrew M.; Vanhatalo, Anni; Seals, Douglas R.; Rossman, Matthew J.; Piknova, Barbora; Jonvik, Kristin Lundanes (Peer reviewed; Journal article, 2020)
      Nitric oxide (NO) is a gaseous signaling molecule that plays an important role in myriad physiological processes including the regulation of vascular tone, neurotransmission, mitochondrial respiration and skeletal muscle ...
    • How do we assess energy availability and RED-S risk factors in para athletes? 

      Jonvik, Kristin Lundanes; Vardardottir, Birna; Broad, Elizabeth (Peer reviewed; Journal article, 2022)
      Low energy availability (LEA) is considered to be the underlying cause of a number of maladaptations in athletes, including impaired physiological function, low bone mineral density (BMD), and hormonal dysfunction. This ...
    • New opportunities to advance the field of sports nutrition 

      Jonvik, Kristin Lundanes; King, Michelle; Rollo, Ian; Stellingwerff, Trent; Pitsiladis, Yannis (Peer reviewed; Journal article, 2022)
      Sports nutrition is a relatively new discipline; with ~100 published papers/year in the 1990s to ~3,500+ papers/year today. Historically, sports nutrition research was primarily initiated by university-based exercise ...