These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Oxygen Uptake and Muscle Deoxygenation Kinetics During Skating: Comparison Between Slide-Board and Treadmill Skating.
    Author: Piucco T, Soares R, Diefenthaeler F, Millet GY, Murias JM.
    Journal: Int J Sports Physiol Perform; 2018 Jul 01; 13(6):783-788. PubMed ID: 29140137.
    Abstract:
    PURPOSE: To compare the oxygen-uptake ([Formula: see text]) kinetics during skating on a treadmill and skating on a slide board and to discuss potential mechanisms that might control the [Formula: see text] kinetics responses during skating. METHODS: Breath-by-breath pulmonary [Formula: see text] and near-infrared spectroscopy-derived muscle deoxygenated hemoglobin and myoglobin ([HHbMb]) were monitored continuously in 12 well-trained, young, long-track speed skaters. On-transient [Formula: see text] and [HHbMb] responses to skating on a treadmill and skating on a slide board at 80% of the estimated gas exchange threshold were fitted as monoexponential function. The signals were time-aligned, and the individual [HHbMb]-to-[Formula: see text] ratio was calculated as the average value from 20 to 120 s after exercise starts. RESULTS: The time constants for the adjustment of phase II [Formula: see text] (τ [Formula: see text]) and [HHbMb] (τ [HHbMb]) were low and similar between slide board and treadmill skating (18.1 [3.4] vs 18.9 [3.6] for τ [Formula: see text] and 12.6 [4.0] vs 12.4 [4.0] s for τ [HHbMb]). The [Formula: see text] ratio was not different from 1.0 (P > .05) in both conditions. CONCLUSIONS: The fast [Formula: see text] kinetics during skating suggest that chronic adaptation to skating might overcome any possible restriction in leg blood flow during low-intensity exercise. The [Formula: see text] ratio values also suggest a good matching of O2 delivery to O2 utilization in trained speed skaters. The similar τ [Formula: see text] and τ [HHbMb] values between slide board and treadmill further reinforce the validity of using a slide board for skating testing and training purposes.
    [Abstract] [Full Text] [Related] [New Search]