• Associations between biological maturity level, match locomotion, and physical capacities in youth male soccer players 

      Gundersen, Hilde; Riiser, Amund; Algrøy, Erling Andre; Vestbøstad, Mona; Sæterbakken, Atle Hole; Clemm, Hege Synnøve Havstad; Grendstad, Halvard; Hafstad, Arild; Kristoffersen, Morten; Rygh, Cecilie Brekke (Journal article; Peer reviewed, 2022)
      Introduction: Biological maturity level has shown to affect sport performance in youths. However, most previous studies have used noninvasive methods to estimate maturity level. Thus, the main aim of the present study was ...
    • Breathing patterns in people with exercise-induced laryngeal obstruction 

      Lie, Astrid Haugen; Grønnevik, Ingvild; Frisk, Bente; Røksund, Ola Drange; Hammer, Ida; Vollsæter, Maria; Halvorsen, Thomas; Clemm, Hege Synnøve Havstad (Journal article; Peer reviewed, 2021)
      Exercise-induced laryngeal obstruction (EILO) is common, but we lack readily available diagnostic tools. The larynx represents an important point of resistance in the airways, and we therefore hypothesized that EILO is ...
    • Bronchial hyper-responsiveness after preterm birth 

      Clemm, Hege Synnøve Havstad; Engeseth, Merete Salveson; Vollsæter, Maria; Kotecha, Sailesh; Halvorsen, Thomas (Peer reviewed; Journal article, 2018-03)
      Being born preterm often adversely affects later lung function. Airway obstruction and bronchial hyperresponsiveness (BHR) are common findings. Respiratory symptoms in asthma and in lung disease after preterm birth might ...
    • Clinical responses following inspiratory muscle training in exercise-induced laryngeal obstruction 

      Sandnes, Astrid; Andersen, Tiina Maarit; Clemm, Hege Synnøve Havstad; Hilland, Magnus; Heimdal, John-Helge; Halvorsen, Thomas; Røksund, Ola Drange; Vollsæter, Maria (Journal article; Peer reviewed, 2021)
      Purpose Exercise-induced laryngeal obstruction (EILO) is relatively common in young people. Treatment rests on poor evidence; however, inspiratory muscle training (IMT) has been proposed a promising strategy. We aimed to ...
    • Comparison of physical activity and body composition in a cohort of children born extremely preterm or with extremely low birth weight to matched term-born controls: a follow-up study 

      Engan, Mette; Vollsæter, Maria; Øymar, Knut; Markestad, Trond; Eide, Geir Egil; Halvorsen, Thomas; Juliusson, Petur Benedikt; Clemm, Hege Synnøve Havstad (Peer reviewed; Journal article, 2019)
      Objectives: To compare physical activity and body composition in a cohort of children born extremely preterm/extremely low birth weight (EP/ELBW) with term-born (TB) controls. Methods: A regional cohort of children ...
    • Conundrums in the breathless athlete; exercise-induced laryngeal obstruction or asthma? 

      Jansrud, Ida; Halvorsen, Thomas; Vollsæter, Maria; Hilland, Magnus; Heimdal, John-Helge; Røksund, Ola Drange; Clemm, Hege Synnøve Havstad (Journal article; Peer reviewed, 2022)
      Purpose: Exercise-induced bronchoconstriction (EIB) and exercise-induced laryngeal obstruction (EILO) are the two disorders commonly considered when athletes complain of exertional dyspnea. They are highly different but ...
    • Development of lung diffusion to adulthood following extremely preterm birth 

      Satrell, Emma Elsa Carolina; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Hufthammer, Karl Ove; Thorsen, Einar; Halvorsen, Thomas; Vollsæter, Maria (Journal article; Peer reviewed, 2022)
      Background: Gas exchange in extremely preterm (EP) infants must take place in fetal lungs. Childhood lung diffusing capacity of the lung for carbon monoxide (DLCO) is reduced; however, longitudinal development has not been ...
    • Exercise Capacity after extremely preterm birth. Development from childhood to adulthood 

      Clemm, Hege Synnøve Havstad (Doctoral thesis, 2015-08-28)
      Background: Extremely preterm (EP) birth is associated with a series of adverse health outcomes, some of which may be alleviated by improved physical fitness. Subjects born EP are reportedly less physically active than ...
    • Exercise induced laryngeal obstructions in humans and equines. A comparative review 

      Fretheim-Kelly, Zoe Louise; Halvorsen, Thomas; Clemm, Hege Synnøve Havstad; Roksund, Ola Drange; Heimdal, John-Helge; Vollsæter, Maria; Fintl, Constanze; Strand, Eric (Peer reviewed; Journal article, 2019-10-30)
      Dynamic obstructions of the larynx are a set of disorders that occur during exercise in equines and humans. There are a number of similarities in presentation, diagnosis, pathophysiology and treatment. Both equines and ...
    • Exercise inducible laryngeal obstruction: diagnostics and management 

      Røksund, Ola Drange; Heimdal, John-Helge; Clemm, Hege Synnøve Havstad; Vollsæter, Maria; Halvorsen, Thomas (Peer reviewed; Journal article, 2017-01)
      Obstruction of the central airways is an important cause of exercise-induced inspiratory symptoms (EIIS) in young and otherwise healthy individuals. This is a large, heterogeneous and vastly understudied group of patients. ...
    • Exercise related respiratory problems in the young—Is it exercise-induced bronchoconstriction or laryngeal obstruction? 

      Vollsæter, Maria; Stensrud, Trine; Maat, Robert; Halvorsen, Thomas; Røksund, Ola Drange; Sandnes, Astrid; Clemm, Hege Synnøve Havstad (Journal article; Peer reviewed, 2022)
      Complaints of breathlessness during heavy exercise is common in children and adolescents, and represent expressions of a subjective feeling that may be difficult to verify and to link with specific diagnoses through objective ...
    • Exercise-induced laryngeal obstruction (EILO) in athletes: a narrative review by a subgroup of the IOC Consensus on 'acute respiratory illness in the athlete' 

      Clemm, Hege Synnøve Havstad; Olin, J Tod; McIntosh, Cameron; Schwellnus, Martin; Sewry, Nicola; Hull, James H.; Halvorsen, Thomas (Journal article; Peer reviewed, 2022)
      Exercise-induced laryngeal obstruction (EILO) is caused by paradoxical inspiratory adduction of laryngeal structures during exercise. EILO is an important cause of upper airway dysfunction in young individuals and athletes, ...
    • Exercise-induced laryngeal obstruction in athletes treated with inspiratory muscle training 

      Sandnes, Astrid; Andersen, Tiina Maarit; Clemm, Hege Synnøve Havstad; Hilland, Magnus; Vollsæter, Maria; Heimdal, John-Helge; Eide, Geir Egil; Halvorsen, Thomas; Røksund, Ola Drange (Peer reviewed; Journal article, 2019-01-18)
      Background Exercise-induced laryngeal obstruction (EILO) is common in athletes and presents with dyspnoea, chest tightness, inspiratory stridor and sometimes panic reactions. The evidence for conservative treatment is weak, ...
    • Exercise-induced Laryngeal Obstruction: Protocol for a Randomized Controlled Treatment Trial 

      Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Andersen, Tiina Maarit; Heimdal, John-Helge; Karlsen, Tom; Hilland, Magnus; Fretheim-Kelly, Zoe; Hufthammer, Karl Ove; Sandnes, Astrid; Hjelle, Sigrun Margrethe; Vollsæter, Maria; Halvorsen, Thomas (Journal article; Peer reviewed, 2022)
      Background: Exercise-induced laryngeal obstruction (EILO) is a common cause of exertional breathing problems in young individuals, caused by paradoxical inspiratory adduction of laryngeal structures, and diagnosed by ...
    • Feasibility and tolerability of measuring translaryngeal pressure during exercise 

      Kelly, Zoe Louise; Halvorsen, Thomas; Heimdal, John-Helge; Strand, Eric; Vollsæter, Maria; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange (Peer reviewed; Journal article, 2019)
      Objectives/Hypothesis: To determine if simultaneous tracheal and supraglottic pressure measurement performed during a continuous laryngoscopy exercise (CLE) test is possible, tolerable, and feasible, and if so, whether ...
    • Impaired Lung Function in Extremely Preterm-Born Adults in Their Fourth Decade of Life 

      Bårdsen, Tonje; Røksund, Ola Drange; Eagan, Tomas Mikal Lind; Hufthammer, Karl Ove; Benestad, Merete Røineland; Clemm, Hege Synnøve Havstad; Halvorsen, Thomas; Vollsæter, Maria (Journal article; Peer reviewed, 2023)
    • Left vocal cord paralysis, lung function and exercise capacity in young adults born extremely preterm with a history of neonatal patent ductus arteriosus surgery—A national cohort study 

      Engan, Mette; Engeset, Merete Salveson; Sandvik, Lorentz; Gamlemshaug, Ole C.O.; Engesæter, Ingvild Øvstebø; Øymar, Knut Asbjørn Alexander; Vollsæter, Maria; Røksund, Ola Drange; Hufthammer, Karl Ove; Halvorsen, Thomas; Clemm, Hege Synnøve Havstad (Journal article; Peer reviewed, 2022-01-03)
      Background: Left vocal cord paralysis (LVCP) is a known complication of patent ductus arteriosus (PDA) surgery in extremely preterm (EP) born neonates; however, consequences of LVCP beyond the first year of life are ...
    • Prevalence and impact of exercise-induced laryngeal obstruction in asthma: a study protocol for a cross-sectional and longitudinal study 

      Rogde, Åse Johnsen; Lehmann, Sverre; Halvorsen, Thomas; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Hufthammer, Karl Ove; Kvidaland, Haakon Kristian; Vollsæter, Maria; Andersen, Tiina Maarit (Journal article; Peer reviewed, 2023)
      Introduction Exercise-induced laryngeal obstruction (EILO) and exercise-induced asthma can cause troublesome respiratory symptoms that can be difficult to distinguish between. Further, there is now a growing appreciation ...
    • Reliability of translaryngeal airway resistance measurements during maximal exercise 

      Fretheim-Kelly, Zoe; Engan, Mette; Clemm, Hege Synnøve Havstad; Andersen, Tiina Maarit; Heimdal, John-Helge; Strand, Eric; Halvorsen, Thomas; Røksund, Ola Drange; Vollsæter, Maria (Journal article; Peer reviewed, 2022)
      Objective Exercise-induced laryngeal obstruction is an important cause of exertional dyspnoea. The diagnosis rests on visual judgement of relative changes of the laryngeal inlet during continuous laryngoscopy exercise (CLE) ...
    • Self-Reported Health in Adolescents With Exercise-Induced Laryngeal Obstruction; A Cross-Sectional Study 

      Benestad, Merete R.; Drageset, Jorunn; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Vollsæter, Maria; Halvorsen, Thomas; Hysing, Mari; Vederhus, Bente Johanne (Journal article; Peer reviewed, 2021)
      Background: Exercise-induced laryngeal obstruction (EILO) is common in young people with exertional breathing difficulties. Psychological characteristics have been proposed as underlying contributors; however, the evidence ...