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    • Imaging of plantar fascia and Achilles injuries undertaken at the London 2012 Olympics 

      Elias, David A.; Carne, Andrew; Bethapudi, Sarath; Engebretsen, Lars; Budgett, Richard; O'Conor, Philip (Journal article; Peer reviewed, 2013-08-01)
      Plantar fascia and distal Achilles injuries are common in elite athletes. Acute athletic injuries of the plantar fascia include acute plantar fasciopathy and partial or complete tears. Underlying most acute injuries is a ...

    • Imaging-detected acute muscle injuries in athletes participating in the Rio de Janeiro 2016 Summer Olympic Games 

      Crema, Michel D.; Jarraya, Mohamed; Engebretsen, Lars; Roemer, Frank W.; Hayashi, Daichi; Domingues, Romulo; Skaf, Abdalla Y.; Guermazi, Ali (Journal article; Peer reviewed, 2017-12-07)
      Background: Acute muscle injuries in elite athletes are responsible for a large portion of time loss injuries. Aim: To describe the frequency, the anatomic distribution, and severity of imaging-detected acute muscle injuries ...

    • Immediate effects of whole body vibration on patellar tendon properties and knee extension torque 

      Rieder, Florian; Wiesinger, Hans-Peter; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2016-03)
      Purpose: Reports about the immediate effects of whole body vibration (WBV) exposure upon torque production capacity are inconsistent. However, the changes in the torque–angle relationship observed by some authors after WBV ...

    • Immunohistochemical changes in the expression of HSP27 in exercised human vastus lateralis muscle 

      Folkesson, Mattias; Mackey, Abigail L.; Holm, Lars; Kjær, Michael; Paulsen, Gøran; Raastad, Truls; Henriksson, Jan; Kadi, Fawzi (Peer reviewed; Journal article, 2008-06-28)
      Aim: The role of HSP27 in the adaptive process of skeletal muscle to exercise, especially in humans, is not well understood. The objective of this study was to investigate immunohistochemical changes in HSP27 expression ...

    • Impact of baseline serum ferritin and supplemental iron on altitude-induced hemoglobin mass response in elite athletes 

      Koivisto-Mørk, Anu; Svendsen, Ida Siobhan; Skattebo, Øyvind; Hallén, Jostein; Paulsen, Gøran (Peer reviewed; Journal article, 2021)
      The present study explored the impact of pre-altitude serum (s)-ferritin and iron supplementation on changes in hemoglobin mass (ΔHbmass) following altitude training. Measures of Hbmass and s-ferritin from 107 altitude ...

    • The impact of Covid-19 pandemic lockdown during Spring 2020 on personal trainers' working and living conditions 

      Bratland-Sanda, Solfrid; Mathisen, Therese Fostervold; Sundgot-Borgen, Christine; Sundgot-Borgen, Jorunn; Tangen, Jan Ove (Peer reviewed; Journal article, 2020)
      Purpose: The aim of this study was to map changes in working and living conditions of Norwegian personal trainers (PTs) during the Covid-19 lockdown spring 2020. Methods: A total of 150 PTs (mean (SD) age 35.5 (8.4) ...

    • Impact of data averaging strategies on V̇O2max assessment: Mathematical modeling and reliability 

      Martin-Rincon, Marcos; Gonzalez-Henriquez, Juan Jose; Losa-Reyna, Jose; Perez-Suarez, Ismael; Ponce-Gonzalez, Jesus Gustavo; de La Calle-Herrero, Jaime; Perez-Valera, Mario; Perez-Lopez, Alberto; Curtelin, David; Cherouveim, Evgenia D; Morales-Alamo, David; Calbet, Jose Antonio Lopez (Peer reviewed; Journal article, 2019)
      Background: No consensus exists on how to average data to optimize VO2max assessment. Although the VO2max value is reduced with larger averaging blocks, no mathematical procedure is available to account for the effect of ...

    • The impact of hypothetical interventions on adiposity in adolescence 

      Gebremariam, Mekdes Kebede; Nianogo, Roch A.; Lien, Nanna; Bjelland, Mona; Bergh, Ingunn Holden; Ommundsen, Yngvar; Arah, Onyebuchi A.; Klepp, Knut-Inge (Peer reviewed; Journal article, 2021)
      In order to develop effective public health initiatives aimed at promoting healthy weight development, identifying the interventions/combination of interventions with the highest beneficial effect on body weight is vital. ...

    • Impact of job insecurity on psychological well- and ill-being among high performance coaches 

      Bentzen, Marte; Kenttä, Göran; Richter, Anne; Lemyre, Nicolas (Peer reviewed; Journal article, 2020)
      Background: The evaluative nature of high performance (HP) sport fosters performance expectations that can be associated with harsh scrutiny, criticism, and job insecurity. In this context, (HP) sport is described as a ...

    • Impact of maternal education on response to lifestyle interventions to reduce gestational weight gain: individual participant data meta-analysis 

      O'Brien, Eileen C.; Segurado, Ricardo; Geraghty, Aisling A.; Alberdi, Goiuri; Rogozinska, Ewelina; Astrup, Arne; Carballo, Ruben Barakat; Bogaerts, Annick; Cecatti, José Guilherme; Coomarasamy, Arri; De Groot, Christianne J.M.; Devlieger, Roland; Dodd, Jodie M.; El Beltagy, Nermeen; Facchinetti, Fabio; Geiker, Nina Rica Wium; Guelfi, Kym; Haakstad, Lene Annette Hagen; Harrison, Cheryce; Hauner, Hans; Jensen, Dorte M.; Khan, Khalid S.; Kinnunen, Tarja I.; Luoto, Riitta; Mol, Ben Willem J.; Mørkved, Siv; Motahari-Tabari, Narges; Owens, Julie A.; Perales, Maria; Petrella, Elisabetta; Phelan, Suzanne; Poston, Lucilla; Rauh, Kathrin; Rayanagoudar, Girish; Renault, Kristina; Ruifrok, Anneloes E.; Sagedal, Linda Reme; Salvesen, Kjell Å; Scudeller, Tânia T.; Shen, Gary; Shub, Alexis; Stafne, Signe Nilssen; Surita, Fernanda; Thangaratinam, Shakila; Tonstad, Serena; van Poppel, Mireille N.M.; Vinter, Christina; Vistad, Ingvild; Yeo, SeonAe; McAuliffe, Fionnuala M. (Peer reviewed; Journal article, 2019)
      Objectives: To identify if maternal educational attainment is a prognostic factor for gestational weight gain (GWG), and to determine the differential effects of lifestyle interventions (diet based, physical activity based ...

    • Impact of menstrual function on hormonal response to repeated bouts of intense exercise 

      Melin, Anna Katarina; Ritz, Christian; Faber, Jens; Skouby, Sven; Pingel, Jessica; Sundgot-Borgen, Jorunn; Sjödin, Anders; Tornberg, Åsa B (Peer reviewed; Journal article, 2019)
      Background: Strenous exercise stimulates the hypothalamic-pituitary (HP) axis in order to ensure homeostasis and promote anabolism. Furthermore, exercise stimulates a transient increase in the neurotrophin brain-derived ...

    • Impact of resistance exercise on ribosome biogenesis is acutely regulated by post‐exercise recovery strategies 

      Figueiredo, Vandré C.; Roberts, Llion A.; Markworth, James F.; Barnett, Matthew P. G.; Coombes, Jeff S.; Raastad, Truls; Peake, Jonathan M.; Cameron-Smith, David (Journal article; Peer reviewed, 2016-01-26)
      Muscle hypertrophy occurs following increased protein synthesis, which requires activation of the ribosomal complex. Additionally, increased translational capacity via elevated ribosomal RNA (rRNA) synthesis has also been ...

    • Implementation conditions for diet and physical activity interventions and policies: an umbrella review. 

      Horodyska, Karolina; Luszczynska, Aleksandra; Hayes, Catherine B.; O'Shea, Miriam P.; Langøien, Lars Jørun; Roos, Gun; van den Berg, Matthijs; Hendriksen, Marieke; De Bourdeaudhuij, Ilse; Brug, Johannes (Journal article; Peer reviewed, 2015-12-17)
      Background: This umbrella review aimed at identifying evidence-based conditions important for successful implementation of interventions and policies promoting a healthy diet, physical activity (PA), and a reduction in ...

    • Implementation eines Injury and Illness Surveillance Systems im paralympischen Leistungssport – Machbarkeitsstudie am Beispiel des Nationalkaders Radsport 

      Kubosch, Eva J.; Fassbender, Katharina; Steffen, Kathrin; Kubosch, David; Südkamp, Norbert P.; Hirschmüller, Anja (Journal article; Peer reviewed, 2017)
      Hintergrund: Die Bedeutung eines standardisierten Monitoring Systems von Erkrankungen und Verletzungen bei Leistungssportlern wurde in den letzten Jahren vielfach betont. Trotz der zunehmenden Trainings- und Wettkampfbelastung ...

    • Implementation of the Adductor Strengthening Programme: Players primed for adoption but reluctant to maintain? - A cross-sectional study 

      Harøy, Joar; Wiger, Espen Guldahl; Bahr, Roald; Andersen, Thor Einar (Peer reviewed; Journal article, 2019)
      Groin injuries represent a considerable problem in male football, accounting for 4%‐19% of all time‐loss injuries. The Adductor Strengthening Programme is the first groin‐specific prevention program shown to reduce the ...

    • “Imprisoned” in pain: Analyzing personal experiences of phantom pain 

      Nortvedt, Finn; Engelsrud, Gunn (Journal article; Peer reviewed, 2014-03-20)
      This article explores the phenomenon of “phantom pain.” The analysis is based on personal experiences elicited from individuals who have lost a limb or live with a paralyzed body part. Our study reveals that the ways in ...

    • Improved reporting of overuse injuries and health problems in sport: an update of the Oslo Sport Trauma Research Center questionnaires 

      Clarsen, Benjamin Matthew; Bahr, Roald; Myklebust, Grethe; Andersson, Stig Haugsbø; Docking, Sean; Drew, Michael; Finch, Caroline F.; Fortington, Lauren Victoria; Harøy, Joar; Khan, Karim; Moreau, Bill; Moore, Isabel S.; Møller, Merete; Nabhan, Dustin; Nielsen, Rasmus Østergaard; Pasanen, Kati; Schwellnus, Martin; Soligard, Torbjørn; Verhagen, Evert (Peer reviewed; Journal article, 2020)
      In 2013, the Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O) was developed to record the magnitude, symptoms and consequences of overuse injuries in sport. Shortly afterwards, a modified version ...

    • Improving outcomes for posterolateral knee injuries 

      LaPrade, Robert F.; Griffith, Chad J.; Coobs, Benjamin R.; Geeslin, Andrew G.; Johansen, Steinar; Engebretsen, Lars (Journal article; Peer reviewed, 2014-01-04)
      Until recently, the posterolateral corner of the knee was noted both for its complex anatomy and diagnostic challenges. To improve the understanding of the posterolateral knee, we completed a comprehensive and stepwise ...

    • Improving the value of fitness testing for football 

      Pyne, David Bruce; Spencer, Matt; Mujika, Iñigo (Journal article; Peer reviewed, 2014-05)
      One of the challenges for sports scientists working in football is to balance the needs for routine fitness testing with daily fatigue and well-being monitoring to best manage the physical preparation of players. In this ...

    • In troubled water? European sports clubs: Their problems, capacities and opportunities 

      Seippel, Ørnulf; Breuer, Christoph; Elmose-Østerlund, Karsten; Feiler, Svenja; Perényi, Szilvia; Piątkowska, Monika; Scheerder, Jeroen (Peer reviewed; Journal article, 2020)
      We study problems experienced by sports clubs from nine European countries – Belgium (Flanders), Denmark, England, Germany, Hungary, the Netherlands, Norway, Poland, and Spain – and factors – national characteristics and ...