A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Effects of Aerodynamic Drag and Drafting on Propulsive Force and Oxygen Consumption in Double Poling Cross-country Skiing (2022)
Ainegren, M., Linnamo, V., & Lindinger, S. (2022). Effects of Aerodynamic Drag and Drafting on Propulsive Force and Oxygen Consumption in Double Poling Cross-country Skiing. Medicine and Science in Sports and Exercise, 54(7), 1058-1065. https://doi.org/10.1249/mss.0000000000002885
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Ainegren, Mats; Linnamo, Vesa; Lindinger, Stefan
Lehti tai sarja: Medicine and Science in Sports and Exercise
ISSN: 0195-9131
eISSN: 1530-0315
Julkaisuvuosi: 2022
Ilmestymispäivä: 08.02.2022
Volyymi: 54
Lehden numero: 7
Artikkelin sivunumerot: 1058-1065
Kustantaja: Lippincott Williams & Wilkins
Julkaisumaa: Yhdysvallat (USA)
Julkaisun kieli: englanti
DOI: https://doi.org/10.1249/mss.0000000000002885
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79787
Tiivistelmä
To investigate the effects of aerodynamic drag and drafting on propulsive force (FPROP), drag area (CDA), oxygen cost (V˙O2), metabolic rate (E˙) and heart rate (HR) during roller skiing on a treadmill in a wind tunnel using the double poling technique. A secondary aim was to investigate the effects of wind versus no-wind test conditions on the same physiological parameters.
Methods
10 subjects of each gender participated in the experiments. One pair of skiers of the same gender roller skied simultaneously in line with the air flow; the distance between the skiers was ~2.05 m. Each pair was tested as follows: I) with wind, leading; II) with wind, drafting; III) without wind. The treadmill inclination was 0° throughout the tests. For the wind conditions, the air velocity was similar to the treadmill belt speed; men, 3 to 7 m · s-1; women 3 to 6 m · s-1.
Results
Drafting resulted in significantly (P < 0.05) lower FPROP, CDA, V˙O2 and E˙, compared to leading, for both genders at racing speed but not at lower speeds, while HR was only affected for the male skiers at racing speed. The test without wind resulted in significantly lower FPROP, V˙O2 and E˙ at all tested speeds compared to the tests with wind present, while HR was lower only at higher speeds.
Conclusions
At racing speed, but not at lower speeds, the positive effects of drafting behind a skier during double poling were obvious and resulted in a lower FPROP, CDA, V˙O2, E˙ and HR. Tests without wind present put even lower demands on the skiers’ physiology, which was also evident at lower speeds.
YSO-asiasanat: hiihto; kilpaurheilu; aerodynamiikka; liikeoppi; hapenotto; energiankulutus (aineenvaihdunta)
Vapaat asiasanat: peesaus
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2022
JUFO-taso: 3
