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2014 | 44 | 1 | 41-52

Article title

Impact of Center-of-Mass Acceleration on the Performance of Ultramarathon Runners

Content

Title variants

Languages of publication

EN

Abstracts

EN
Ultramarathon races are rapidly gaining popularity in several countries, raising interest for the improvement of training programs. The aim of this study was to use a triaxial accelerometer to compare the three-dimensional centerof- mass accelerations of two groups of ultramarathon runners with distinct performances during different running speeds and distances. Ten runners who participated in the 12-h Taipei International Ultramarathon Race underwent laboratory treadmill testing one month later. They were divided into an elite group (EG; n = 5) and a sub-elite group (SG; n = 5). The triaxial center-of-mass acceleration recorded during a level-surface progressive intensity running protocol (3, 6, 8, 9, 10, and 12 km/h; 5 min each) was used for correlation analyses with running distance during the ultramarathon. The EG showed negative correlations between mediolateral (ML) acceleration (r = −0.83 to −0.93, p < 0.05), and between anterior-posterior (AP) acceleration and running distance (r = −0.8953 to −0.9653, p < 0.05), but not for vertical control of the center of mass. This study suggests that runners reduce stride length to minimize mediolateral sway and the effects of braking on the trunk; moreover, cadence must be increased to reduce braking effects and enhance impetus. Consequently, the competition level of ultramarathons can be elevated.

Publisher

Year

Volume

44

Issue

1

Pages

41-52

Physical description

Dates

published
1 - 12 - 2014
accepted
1 - 12 - 2014
online
30 - 12 - 2014

Contributors

author
  • Center for General Education, China University of Science and Technology, Taipei, Taiwan
  • Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan
author
  • Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan
author
  • Department of Computer Science & Information Management, Soochow University, Taipei, Taiwan
  • Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
author
  • Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_hukin-2014-0109
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