an extreme mountain ultra-marathon decreases the cost of uphill walking and running

Clicks: 392
ID: 178203
2016
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #23 of 461 articles by views in Journal of clinical and experimental dentistry

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 461 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Purpose: To examine the effects of the world’s most challenging mountain ultramarathon (MUM, 330 km, cumulative elevation gain of +24000 m) on the energy cost and kinematics of different uphill gaits. Methods: Before (PRE) and immediately after (POST) the competition, 19 male athletes performed three submaximal 5-min treadmill exercise trials in a randomized order: walking at 5 km·h-1, +20%; running at 6 km·h-1, +15%; and running at 8 km·h-1, +10%. During the three trials, energy cost was assessed using an indirect calorimetry system and spatiotemporal gait parameters were acquired with a floor-level high-density photoelectric cells system. Results: The average time of the study participants to complete the MUM was 129 h 43 min 48 s (range: 107 h 29 min 24 s to 144 h 21 min 0 s). Energy costs in walking (-11.5 ± 5.5%, P < 0.001), as well as in the first (-7.2 ± 3.1%, P = 0.01) and second (-7.0 ± 3.9%, P = 0.02) running condition decreased between PRE and POST, with a reduction both in the heart rate (-11.3%, -10.0%, and -9.3%, respectively) and oxygen uptake only for the walking condition (-6.5%). No consistent and significant changes in the kinematics variables were detected (P values from 0.10 to 0.96). Conclusion: Though fatigued after completing the MUM, the subjects were still able to maintain their uphill locomotion patterns noted at PRE. The decrease (improvement) in the energy costs was likely due to the prolonged and repetitive walking/running, reflecting a generic improvement in the mechanical efficiency of locomotion after ~130 h of uphill locomotion rather than constraints imposed by the activity on the musculoskeletal structure and function.
Reference Key
vernillo2016frontiersan Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Gianluca Vernillo;Gianluca Vernillo;Aldo Savoldelli;Aldo Savoldelli;Spyros Skafidas;Spyros Skafidas;Andrea Zignoli;Andrea Zignoli;Antonio La Torre;Barbara Pellegrini;Barbara Pellegrini;Guido Giardini;Pietro Trabucchi;Pietro Trabucchi;Gregoire P Millet;Federico Schena;Federico Schena
Journal Journal of clinical and experimental dentistry
Year 2016
DOI
10.3389/fphys.2016.00530
URL
http://journal.frontiersin.org/Journal/10.3389/fphys.2016.00530/full
Keywords
trail walking running uphill

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.