Effects of training-induced fatigue on the pacing patterns in 40-km cycling time trials

Skorski, Sabrina, Hammes, Daniel, Schwindling, Sascha, Veith, Sebastian, Pfeiffer, Mark, Ferrauti, Alexander, Kellmann, Michael and Meyer, Tim (2014) Effects of training-induced fatigue on the pacing patterns in 40-km cycling time trials. Medicine and Science in Sports and Exercise, 47 3: 593-600. doi:10.1249/MSS.0000000000000439


Author Skorski, Sabrina
Hammes, Daniel
Schwindling, Sascha
Veith, Sebastian
Pfeiffer, Mark
Ferrauti, Alexander
Kellmann, Michael
Meyer, Tim
Title Effects of training-induced fatigue on the pacing patterns in 40-km cycling time trials
Journal name Medicine and Science in Sports and Exercise   Check publisher's open access policy
ISSN 1530-0315
0195-9131
Publication date 2014-03-01
Year available 2014
Sub-type Article (original research)
DOI 10.1249/MSS.0000000000000439
Volume 47
Issue 3
Start page 593
End page 600
Total pages 8
Place of publication Philadelphia PA, United States
Publisher Lippincott Williams & Wilkins
Collection year 2015
Language eng
Formatted abstract
Introduction: In some endurance sports, athletes complete several competitions within a short period, resulting in accumulated fatigue. It is unclear whether fatigued athletes choose the same pacing pattern (PP) as when they have recovered.

Purpose: This study aimed to analyze effects of fatigue on PP of cyclists during a 40-km time trial (TT).

Methods: Twenty-three male cyclists (28.8 ± 7.6 yr) completed three 40-km TT on a cycle ergometer. TT were conducted before (TT1) and after (TT2) a 6-d training period. A third TT was carried out after 72 h of recovery (TT3). Training days consisted of two cycling sessions: mornings, 1 h at 95% of lactate threshold or 3 × 5 × 30 s all-out sprint; afternoons, 3 h at 80% individual anaerobic threshold. Four-kilometer split times (min) and RPE were recorded during TT.

Results: Performance decreased from TT1 to TT2 (65.7 ± 3.5 vs 66.7 ± 3.3 min; P < 0.05) and increased from TT2 to TT3 (66.7 ± 3.3 vs 65.5 ± 3.3 min; P < 0.01). PP showed a significant difference between TT1 and TT2 (P < 0.001) as well as between TT2 and TT3 (P < 0.01). PP in TT1 and TT3 showed no significant difference (P > 0.05). In TT1 and TT3, cyclists started faster in the first 4 km compared with TT2. RPE course showed no significant difference between TT (P > 0.05).

Conclusions: Fatigue reversibly changes the PP of cyclists during a 40-km TT. Participants reduced their power output until premature exhaustion seemed very unlikely. This supports the assumption that pacing includes a combination of anticipation and feedback mechanisms.
Keyword Pacing template
Endurance training
Performance
Exhaustion
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Tue, 17 Feb 2015, 19:54:29 EST by Sandrine Ducrot on behalf of School of Human Movement and Nutrition Sciences