Cristin

2024
1.	Keller, Sebastian; Olstad, Bjørn Harald; Wahl, Patrick. Lower and upper extremity contributions to propulsion and resistance during semi-tethered load-velocity profiling in front crawl swimming. Journal of Sports Sciences 2024 s. - NIH Untitled
2023
2.	Barbosa, Augusto C.; Araújo, Leonardo Tomasello; Leis, Leonardo Vecchi; Lourenço, Thiago Fernando; Barroso, Renato; Gonjo, Tomohiro; Paolucci, Leopoldo A.; Olstad, Bjørn Harald; Andrade, André G. P.. The gold rush in para swimming: changes in the speed curve of a visually impaired world and paralympic champion–a case study. Sports Biomechanics 2023 s. - NIH Untitled

3.	Gonjo, Tomohiro; Olstad, Bjørn Harald; Štastný, Jan; Conceição, Ana; Seifert, Ludovic. Intra- and inter-individual variability in the underwater pull-out technique in 200 m breaststroke turns. PLOS ONE 2023 ;Volum 18.(3) s. - NIH Untitled

4.	Ljødal, Ingeborg; Olstad, Bjørn Harald; Pensgaard, Anne Marte. Motives, Motivation, and Motivational Climate of Young Norwegian Swimmers, and their Parents’ Belief. Scandinavian Sport Studies Forum 2023 ;Volum 14. s. 151-175 NIH Untitled

5.	Szczepan, Stefan; Wróblewska, Zofia; Klich, Sebastian; Michalik, Kamil; Gonjo, Tomohiro; Olstad, Bjørn Harald; Rejman, Marek. Reliability of a semi-tethered front crawl sprint performance test in adolescent swimmers. Frontiers in Physiology 2023 ;Volum 14. s. - NIH Untitled

6.	Wettengl, Christina; Karlsson, Rebecca Vilde Martine Krohn; Olstad, Bjørn Harald; Gonjo, Tomohiro. Load-Velocity Profile and Active Drag in Young Female Swimmers: An Age-Group Comparison. International Journal of Sports Physiology and Performance (IJSPP) 2023 ;Volum 19.(1) s. 44-52 NIH Untitled
2022
7.	Born, Dennis-Peter; Schönfelder, Michel; Logan, Oliver; Olstad, Bjørn Harald; Romann, Michael. Performance Development of European Swimmers Across the Olympic Cycle. Frontiers in Sports and Active Living 2022 ;Volum 4. s. - NIH Untitled

8.	Gonjo, Tomohiro; Olstad, Bjørn Harald. Reliability of the active drag assessment using an isotonic resisted sprint protocol in human swimming. Scientific Reports 2022 ;Volum 12. s. - NIH Untitled

9.	Gonjo, Tomohiro; Polach, Marek; Olstad, Bjørn Harald; Romann, Michael; Born, Dennis-Peter. Differences in Race Characteristics between World-Class Individual-Medley and Stroke-Specialist Swimmers. International Journal of Environmental Research and Public Health (IJERPH) 2022 ;Volum 19.(20) s. - NIH Untitled
2021
10.	Barbosa, Augusto C.; Barroso, Renato; Gonjo, Tomohiro; Rossi, Marcel M.; Paolucci, Leopoldo A.; Olstad, Bjørn Harald; Andrade, André G. P.. 50 m freestyle in 21, 22 and 23 s: What differentiates the speed curve of world-class and elite male swimmers?. International Journal of Performance Analysis in Sport 2021 s. - NIH Untitled

11.	Barbosa, Augusto C.; Barroso, Renato; Olstad, Bjørn Harald; Andrade, André G.. Long-term changes in the speed curve of a world-class butterfly swimmer. Journal of Sports Medicine and Physical Fitness 2021 ;Volum 61.(1) s. 152-158 NIH Untitled

12.	Gonjo, Tomohiro; Njøs, Nikolai; Eriksrud, Ola; Olstad, Bjørn Harald. The Relationship Between Selected Load-Velocity Profile Parameters and 50 m Front Crawl Swimming Performance. Frontiers in Physiology 2021 ;Volum 12. s. - NIH Untitled

13.	Gonjo, Tomohiro; Olstad, Bjørn Harald. Differences between elite and sub-elite swimmers in a 100 m breaststroke: a new race analysis approach with time-series velocity data. Sports Biomechanics 2021 s. - NIH Untitled

14.	Olstad, Bjørn Harald. Helse, miljø og sikkerhet i svømmeog livredningsopplæring. I: Utendørs svømme- og livredningsopplæring. Universitetsforlaget 2021 ISBN 9788215034423. s. 99-126 NIH Untitled

15.	Olstad, Bjørn Harald; Gonjo, Tomohiro; Conceição, Ana; Šťastný, Jan; Seifert, Ludovic. Arm–leg coordination during the underwater pull-out sequence in the 50, 100 and 200 m breaststroke start. Journal of Science and Medicine in Sport 2021 s. - NIH Untitled

16.	Reichmuth, Daniela; Olstad, Bjørn Harald; Born, Dennis-Peter. Key performance indicators related to strength, endurance, flexibility, anthropometrics, and swimming performance for competitive aquatic lifesaving. International Journal of Environmental Research and Public Health (IJERPH) 2021 ;Volum 18.(7) s. - NIH Untitled

17.	Seifert, Ludovic; Conceição, Ana; Gonjo, Tomohiro; Stastny, Jan; Olstad, Bjørn Harald. Arm–Leg coordination profiling during the dolphin kick and the arm pull-out in elite breaststrokers. Journal of Sports Sciences 2021 s. - NIH Untitled
2020
18.	Gonjo, Tomohiro; Eriksrud, Ola; Papoutsis, Filip Dimitrios Evje; Olstad, Bjørn Harald. Relationships between a Load-velocity Profile and Sprint Performance in Butterfly Swimming. International Journal of Sports Medicine (IJSM) 2020 ;Volum 41.(7) s. 461-467 NIH Untitled

19.	Gonjo, Tomohiro; Olstad, Bjørn Harald. Race Analysis in Competitive Swimming: A Narrative Review. International Journal of Environmental Research and Public Health (IJERPH) 2020 ;Volum 18.(1) s. - NIH Untitled

20.	Gonjo, Tomohiro; Olstad, Bjørn Harald. Start and turn performances of competitive swimmers in sprint butterfly swimming. Journal of Sports Science and Medicine 2020 ;Volum 19.(4) s. 727-734 NIH Untitled

21.	Kamandulis, Sigitas; Juodsnukis, Antanas; Stanislovaitiene, Jurate; Zuoziene, Ilona Judita; Bogdelis, Andrius; Mickevicius, Mantas; Eimantas, Nerijus; Snieckus, Audrius; Olstad, Bjørn Harald; Venckunas, Tomas. Daily resting heart rate variability in adolescent swimmers during 11 weeks of training. International Journal of Environmental Research and Public Health (IJERPH) 2020 ;Volum 17.(6) s. - NIH Untitled

22.	Odberg, Ann-Helen; Tjellaug, Gisle Vedvik; Grydeland, May; Olstad, Bjørn Harald. Opplæring og bading ute. 360 vandring. www.svømmedyktig.no HVL 2020 HVL NIH Untitled

23.	Olstad, Bjørn Harald; Berg, Pernille Ravn; Kjendlie, Per-Ludvik. Outsourcing Swimming Education - Experiences and Challenges. International Journal of Environmental Research and Public Health (IJERPH) 2020 ;Volum 18.(1) s. - NIH Untitled

24.	Olstad, Bjørn Harald; Gonjo, Tomohiro; Njøs, Nikolai; Abächerli, Kathrin; Eriksrud, Ola. Reliability of Load-Velocity Profiling in Front Crawl Swimming. Frontiers in Physiology 2020 ;Volum 11. s. 1-8 NIH Untitled

25.	Olstad, Bjørn Harald; Wathne, Henrik; Gonjo, Tomohiro. Key Factors Related to Short Course 100 m Breaststroke Performance. International Journal of Environmental Research and Public Health (IJERPH) 2020 ;Volum 17.(17) s. - NIH Untitled

26.	Olstad, Bjørn Harald; Zinner, Christoph. Validation of the Polar OH1 and M600 optical heart rate sensors during front crawl swim training. PLOS ONE 2020 ;Volum 15.(4) s. - NIH Untitled
2019
27.	Felix, Eduardo Ramos; da Silva, Hugo Plácido; Olstad, Bjørn Harald; Cabri, Jan Maria Hendrick; Correia, Paulo Lobato. SwimBIT: A novel approach to stroke analysis during swim training based on attitude and heading reference system (AHRS). Sports 2019 ;Volum 7.(11) s. - NIH Untitled

28.	Olstad, Bjørn Harald; Bjørlykke, Veronica O.; Olstad, Daniela Schäfer. Maximal heart rate for swimmers. Sports 2019 ;Volum 7.(11) s. - NIH Untitled
2018
29.	Olstad, Bjørn Harald. Optical heart rate in swimming: a pilot study. XIIIth International Symposium for Biomechanics and Medicine in Swimming; 2018-09-17 - 2018-09-21 NIH Untitled

30.	Olstad, Bjørn Harald; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Correspondence of muscular activation during maximal breaststroke swimming and self-selected drill exercises. XIIIth International Symposium for Biomechanics and Medicine in Swimming; 2018-09-17 - 2018-09-21 NIH Untitled
2017
31.	Olstad, Bjørn Harald; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. A Common Drill Exercise In A World Champion Breaststroker - Does It Offer What It Promises?. Medicine & Science in Sports & Exercise 2017 ;Volum 49.(5) s. 480-480 NIH Untitled

32.	Olstad, Bjørn Harald; Vaz, Joao Rocha; Zinner, Christoph; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle coordination, activation and kinematics of world-class and elite breaststroke swimmers during submaximal and maximal efforts. Journal of Sports Sciences 2017 ;Volum 35.(11) s. 1107-1117 NIH Untitled

33.	Olstad, Daniela Schäfer; Kjendlie, Per-Ludvik; Cabri, Jan Maria Hendrick; Olstad, Bjørn Harald. Can Rate Of Perceived Exertion Be Used To Estimate Muscle Activation?. Medicine & Science in Sports & Exercise 2017 ;Volum 49.(5) s. 1041-1041 NIH Untitled
2016
34.	Olstad, Bjørn Harald; Zinner, Christoph; Vaz, Joao Rocha; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle Activation in World Champions, World-Class and National Breaststroke Swimmers. International Journal of Sports Physiology and Performance (IJSPP) 2016 ;Volum 12.(4) s. 538-547 NIH Untitled

35.	Vaz, Joao Rocha; Olstad, Bjørn Harald; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik; Pezarat-Correia, Pedro; Hug, Francois. Muscle coordination during breaststroke swimming: Comparison between elite swimmers and beginners. Journal of Sports Sciences 2016 ;Volum 34.(20) s. 1941-1948 NIH Untitled
2015
36.	Grydeland, May; Olstad, Bjørn Harald; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle activation and kinematic differences between female and male elite breaststroke swimmers. 20th annual Congress of the European College of Sport Science; 2015-06-24 - 2015-06-27 NIH Untitled

37.	Guignard, B; Olstad, Bjørn Harald; Escobar, David Simbaña; Lauer, Jessy; Kjendlie, Per-Ludvik; Rouard, A.H.. Knee and ankle muscles coactivations in breaststroke swimming kick and recovery: Exploratory approach. 33rd International Conference of Biomechanics in Sports (ISBS); 2015-06-29 - 2015-07-03 NIH Untitled

38.	Guignard, Brice; Olstad, Bjørn Harald; Escobar, David Simbaña; Lauer, Jessy; Kjendlie, Per-Ludvik; Rouard, Annie H.. Different muscle-recruitment strategies among elite breaststrokers. International Journal of Sports Physiology and Performance (IJSPP) 2015 ;Volum 10.(8) s. 1061-1065 NIH Untitled

39.	Lauer, Jessy; Olstad, Bjørn Harald; Minetti, Alberto Enrico; Kjendlie, Per-Ludvik; Rouard, A.H.. Breaststroke swimmers moderate internal work increases toward the highest stroke frequencies. Journal of Biomechanics 2015 ;Volum 48.(12) s. 3012-3016 NIH Untitled

40.	Olstad, Bjørn Harald; Grydeland, May; Vaz, Joao Rocha; Zinner, Christoph; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle Activation of World-Class Breaststroke Swimmers. 20th annual Congress of the European College of Sport Science; 2015-06-24 - 2015-06-27 NIH Untitled

41.	Olstad, Bjørn Harald; Grydeland, May; Vaz, Joao Rocha; Zinner, Christoph; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle Activation of World-Class Breaststroke Swimmers. I: 20th annual Congress of the EUROPEAN COLLEGE OF SPORT SCIENCE 24th - 27th June 2015, Malmö – Sweden BOOK OF ABSTRACTS. : European College of Sport Science 2015 ISBN 978-91-7104-567-6. s. 469-469 NIH Untitled

42.	Pimentel, Angela; Gomes, Ricardo; Olstad, Bjørn Harald; Gamboa, Hugo. A new tool for the automatic detection of muscular voluntary contractions in the analysis of electromyographic signals. Interacting with computers 2015 ;Volum 27.(5) s. 492-499 NIH Untitled

43.	Schäfer, Daniela; Olstad, Bjørn Harald; Wilhelm, Matthias. Can Heart Rate Variability Segment Length During Orthostatic Test Be Reduced To 2 Min?. Medicine & Science in Sports & Exercise 2015 ;Volum 46.(5) s. 38-38 NIH Untitled
2014
44.	Kjendlie, Per-Ludvik; Haakonsen, David; Olstad, Bjørn Harald. Automatic 3D underwater motion capture is highly accurate. XIIth International Symposium on Biomechanics and Medicine in Swimming; 2014-04-28 - 2014-05-02 NIH Untitled

45.	Kjendlie, Per-Ludvik; Pedersen, Tommy; Stallman, Robert K.; Olstad, Bjørn Harald. The effects of unsteady water on choice of swimming stroke. XIIth International Symposium on Biomechanics and Medicine in Swimming; 2014-04-28 - 2014-05-02 NIH PHS Untitled

46.	Olstad, Bjørn Harald; Ekeland, Halvor. Differences in stroke length, frequency and velocity for the men's 100m long course freestyle for international and Norwegian finalists. XIIth International Symposium on Biomechanics and Medicine in Swimming; 2014-04-28 - 2014-05-02 NIH Untitled

47.	Olstad, Bjørn Harald; Lauer, Jessy; Zinner, Christoph; Haakonsen, David; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle activation and kinematic differences between breaststroke swimming and technique/drill exercises: a case study of a world champion breaststroker. I: Proceedings of th XIIth International Symposium on Biomechanics and Medicine in Swimming. Canberra, Australia: Australian Institute of Sport 2014 ISBN 978-0-646-91868-6. s. 200-205 NIH Untitled

48.	Olstad, Bjørn Harald; Lauer, Jessy; Zinner, Christoph; Haakonsen, David; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Muscle activation and kinematic differences between breaststroke swimming and technique/drill exercises: a case study of a world champion breaststroker. XIIth International Symposium on Biomechanics and Medicine in Swimming; 2014-04-28 - 2014-05-02 NIH Untitled

49.	Olstad, Bjørn Harald; Zinner, Christoph; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. Surface electromyographic measurements on land prior to and after 90 min of submersion (swimming) are highly reliable. Journal of Electromyography & Kinesiology 2014 ;Volum 24.(5) s. 698-703 NIH Untitled

50.	Olstad, Bjørn Harald; Zinner, Christoph; Haakonsen, David; Cabri, Jan Maria Hendrick; Kjendlie, Per-Ludvik. A new approach for identifying phases of the breaststroke wave kick and calculation of feet slip using 3D automatic motion tracking. XIIth International Symposium on Biomechanics and Medicine in Swimming; 2014-04-28 - 2014-05-02 NIH Untitled

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