Fysioterapeuten 2-2019

26 FYSIOTERAPEUTEN 2/19 FAG VITENSKAPELIG ARTIKKEL respective of age (19-21). Women and men with BMI≤25 ran faster in all three distances compared to women and men with BMI>25 (Table 4). Body weight is an important factor in the measurement of VO 2max in ml×kg-1×min-1. According to Kim and So (22) there is sig- nificant negative correlation between BMI and VO 2max ,which is one of the main physio- logical factors accounting for success in long distance events (7, 8). The training volume and weekly number of interval sessions for the participants in the study are self-repor- ted based on what they presume to have carried out and there is always uncertainty related to self-reported training. However, in this study the runners were found to run less km per week than recommended for re- creational runners in the research literature, and this is despite the fact that recreational runners tend to over report their training volume (23). Conclusion Although the present study demonstrates a significant negative relationship between training volume and finishing time in 10,000 m, half-marathon and marathon, the run- ners in the present study ran, on average, fe- wer km per week than the research literature has previously recommended for recreatio- nal runners. Not surprisingly, men ran fas- ter than women and runners with BMI≤25 ran faster than runners with BMI>25 for all distances. More surprisingly, only trivial differences in running times for any of the distances were observed between runners aged ≤40 and ≥41 years, and runners aged ≥41 years were found to run more km per week compared to runners aged ≤40 years. References 1. Gorichanaz T. Beautiful and sublime: the aesthetics of running in a commodified world. Journal of Philosophy in Sport. 2016;43(3):365-79. https://doi.org/10.1080/0094 8705.2016.1206826 2. Tjelta LI, Berge IB. Fra utrent til halvmaratonløper på 20 uker (from inactive to half-marathon runner in 20 weeks). Fysioterapeuten. 2015;8(15):16-20. 3. Tjelta LI, Kvåle PE, Shalfawi S. The Half-Marathon Participants, who are they and what Motivates them for Training and Competition. Acta Kinesiologiae Universitatis Tartuensis. 2017;23:42-51. https://doi.org/10.12697/ akut.2017.23.04 4. RunningUSA. http://www.runningusa.org/annual- reports:2017 5. Norsk organisasjon for kondisjonsidrett (Kondis): www. kondis.no. 6. Hanson N, Madaras L, Dicke J, Buckworth J. Motivational Differences Between Half, Full and Ultramarathoners. Journal of Sport Behavior. 2015;38(2):180-91. 7. Foster C. VO2max and training indices as deter- mination of competitive running perfornance. Jour- nal of Sports Sciences 1983;1:13-22. https://doi. org/10.1080/02640418308729657 8. Noakes TD, Myburgh KH, Schall R. Peak treadmill run- ning velocity during the VO2max test predicts running performance. 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Gordon D, Wightman S, Basevitc I, Johnstone J, Espejo- Sanchez C, Beckford C, et al. Physiological and training characteristics of recreational marathon runners. Open Ac- cess Journal of Sports Medicine. 2017;8:231-41. https:// dx.doi.org/10.2147%2FOAJSM.S141657 14. Bartlett JE, Kotrlik JW, Higgins CC. Organizational Research: Determining Appropriate Sample Size in Survey Research. Information Technology, Learning, and Performance Journal. 2001;19:43-50. http://citeseerx.ist. psu.edu/viewdoc/download?doi=10.1.1.486.8295&rep= rep1&type=pdf 15. Leadingsystem. SurveyXact 2013 [Available from: http://www.surveyxact.com/about-us. 16. Shalfawi SAI (2016). Statistical Use in Applied Sport Research: Methodological and Ethical Challenges. Strength and Conditioning Journal, 38(5), 88-91. doi:10.1519/ ssc.0000000000000242. 17. Cohen J. Statistical Power Analysis for the Behavioral Sciences. New York: Routledge; 1988. 18. Stellingwerff T. Case Study: Nutrition and Training Periodization in Three Elite Marathon Runners. Interna- tional Journal of Sport Nutrition & Exercise Metabolism. 2012;22(5):392-400. https://www.ncbi.nlm.nih.gov/ pubmed/23011657 19. Lehto N. Effects of age on marathon finish- ing time among male amateur runners in Stockholm Marathon 1979–2014. Journal of Sport and Health Science. 2016;5(3):349-54. https://doi.org/10.1016/j. jshs.2015.01.008 20. Hunter SK, Stevens AA. Sex differences in marathon running with advanced age: physiology or participation? Med Sci Sports Exerc. 2013;45(1):148-56. https://doi. org/10.1249/MSS.0b013e31826900f6 21. Lara B, Salinero JJ, Del Coso J. The relationship between age and running time in elite marathoners is U-shaped. Age (Dordrecht, Netherlands). 2014;36(2):1003-8. https:// doi.org/10.1007/s11357-013-9614-z 22. Kim JH, So WY. Correlation of waist circumference and body mass index with VO2max in Korean adults. HealthMed. 2012;6(5):1632-5. 23. Borresen J, Lambert MI. The quantification of training load, the training response and the effect on perfor- mance. Sports Med. 2009;39(9):779-95. https://doi. org/10.2165/11317780-000000000-00000 Tittel: Sammenhengen mellom prestasjonsnivå og treningskarakteristika hos løpere som deltar på distansene 10,000 m, halvmaraton og maraton i Oslo Maraton Sammendrag n Bakgrunn : Hensikten med denne studien var å undersøke sammenhengen mellom prestasjonsnivå og treningskarakteristika blant deltakere i BMW Oslo Maraton i 2017. n Materiale og metode : Et deskriptivt, kvantitativt forskningsdesign, i form av en spør- reundersøkelse ble benyttet for å innhente informasjon om deltakernes treningsvaner. Totalt 2.245 deltakere (42.6±11.2 år) hvorav 938 kvinner (41.2±10.9 år) og 1.307 menn (43.7±11.4 år) som løp en av distansene 10,000 m, halvmaraton eller maraton er med i studien. n Resultater : Treningsvolumet hadde en tendens til å øke med lengden av konkurranse- distansen. Det ble funnet moderat til lavt negativt samsvar mellom ukentlig trenings- volum og løpstid på alle distanser. Løpere ≥41 år løp litt saktere enn løpere ≤40 år. Normalvektige løpere løp fortere og trente mer enn løpere med overvekt. n Konklusjon : Kun lav statistisk signifikant forskjell i løpstider på alle distanser ble fun- net mellom løpere ≤40 og ≥41 år. Det ble videre funnet at løpere ≥41 år løp flere km per uke sammenliknet med løpere ≤40 år. Løperne i denne studien løp i snitt færre km per uke enn det som er rapportert og anbefalt for mosjonister i forskningslitteraturen. n Nøkkelord : Treningsmengde, treningshyppighet, kjønn, KMI. https://fysioterapeuten.no/Fag-og-vitenskap/Forfatterveiledning

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