Browsing NTNU Open by Author "Lundgren, Kari Margrethe"
Now showing items 1-9 of 9
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Blood Volume and Vascular Diversity in Highly Endurance Trained Athletes: Sport Specificity? - A Cross-sectional Study
Lundgren, Kari Margrethe (Master thesis, 2013)Background: Blood volume (BV) is a critical component for cardiac output. However, it is unknown to what extent a high BV contributes to explain differences in maximal oxygen uptakes(VO2max) in elite ... -
Blood Volume, Hemoglobin Mass, and Peak Oxygen Uptake in Older Adults: The Generation 100 Study
Lundgren, Kari Margrethe; Aspvik, Nils Petter; Langlo, Knut Asbjørn Rise; Braaten, Tonje Bjørndal; Wisløff, Ulrik; Stensvold, Dorthe; Karlsen, Trine (Peer reviewed; Journal article, 2021)Purpose: To investigate the association between blood volume, hemoglobin mass (Hbmass), and peak oxygen uptake (VO2peak) in healthy older adults. Methods: Fifty fit or unfit participants from the prospective randomized ... -
Cardiorenal syndrome and the association with fitness: Data from a telerehabilitation randomized clinical trial
Langlo, Knut Asbjørn Rise; Lundgren, Kari Margrethe; Zanaboni, Paolo; Mo, Rune; Ellingsen, Øyvind; Hallan, Stein; Aksetøy, Inger-Lise Aamot; Dalen, Håvard (Peer reviewed; Journal article, 2022)Aims To investigate the associations of cardiorespiratory fitness with cardiac, vascular, renal and cardiorenal characteristics in chronic heart failure in a telerehabilitation randomized clinical trial. Secondly, to ... -
Effects of High Intensity Interval Training and Strenght Training on Metabolic, Cardiovascular and Hormonal Outcomes in Women with Polycystic Ovary Syndrome: A Pilot Study
Almenning, Ida; Rieber-Mohn, Astrid; Lundgren, Kari Margrethe; Løvvik, Tone Shetelig; Garnæs, Kirsti Krohn; Moholdt, Trine Tegdan (Journal article; Peer reviewed, 2015)Background: Polycystic ovary syndrome is a common endocrinopathy in reproductive-age women, and associates with insulin resistance. Exercise is advocated in this disorder, but little knowledge exists on the optimal ... -
Exercise prior to assisted fertilization in overweight and obese women (FertilEx): study protocol for a randomized controlled trial
Lundgren, Kari Margrethe; Romundstad, Liv Bente; Düring, Vidar Von; Mørkved, Siv; Kjøtrød, Sigrun Beate; Moholdt, Trine Tegdan (Journal article; Peer reviewed, 2016)Background Overweight and obese women show reduced conception rates compared to women of normal weight. Insulin resistance and increased amount of visceral fat may be important mechanisms for reduced fertility in these ... -
Feasibility of telerehabilitation for heart failure patients inaccessible for outpatient rehabilitation
Lundgren, Kari Margrethe; Langlo, Knut Asbjørn Rise; Salvesen, Øyvind; Zanaboni, Paolo; Cittanti, Elisa; Mo, Rune; Ellingsen, Øyvind; Dalen, Håvard; Aksetøy, Inger-Lise Aamot (Peer reviewed; Journal article, 2023)Aims Despite strong recommendations, outpatient cardiac rehabilitation is underused in chronic heart failure (CHF) patients. Possible barriers are frailty, accessibility, and rural living, which may be overcome by ... -
How to Be 80 Year Old and Have a VO2max of a 35 Year Old
Karlsen, Trine; Leinan, Ingeborg Megård; Bækkerud, Fredrik Hjulstad; Lundgren, Kari Margrethe; Tari, Atefe R; Steinshamn, Sigurd Loe; Støylen, Asbjørn; Rognmo, Øivind (Peer reviewed; Journal article, 2015)Background. To discuss the cardiovascular and pulmonary physiology and common risk factors of an 80-year-old man with a world record maximal oxygen uptake of 50 mL·kg−1·min−1. Methods. Case report. Results. His maximal ... -
Indexing cardiac volumes for peak oxygen uptake to improve differentiation of physiological and pathological remodeling: from elite athletes to heart failure patients
Letnes, Jon Magne; Nes, Bjarne Martens; Langlo, Knut Asbjørn Rise; Lundgren, Kari Margrethe; Skovereng, Knut; Sandbakk, Øyvind Bucher; Wisløff, Ulrik; Dalen, Håvard; Aksetøy, Inger-Lise Aamot (Peer reviewed; Journal article, 2023)Aims Cardiovascular structures adapt to meet metabolic demands, but current methodology for indexing by body size does not accurately reflect such variations. Therefore, we aimed to investigate how left ventricular ... -
Women undergoing assisted fertilisation and high-intensity interval training: a pilot randomised controlled trial
Kiel, Ida Almenning; Lundgren, Kari Margrethe; Mørkved, Siv; Kjøtrød, Sigrun Beate; Salvesen, Øyvind; Romundstad, Liv Bente Bergem; Moholdt, Trine (Journal article; Peer reviewed, 2018)Objectives Overweight and obese women often seek assisted fertilisation. In the obese population, pregnancy rates are 30%–75% below that of normal weight women who undergo assisted fertilisation. We hypothesised that ...