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Time course of performance changes and fatigue markers during intensified training in trained cyclists
Open accessAbstract
To study the cumulative effects of exercise stress and subsequent recovery on performance changes and fatigue indicators, the training of eight endurance cyclists was systematically controlled and monitored for a 6-wk period. Subjects completed 2 wk of normal (N), intensified (ITP), and recovery training. A significant decline in maximal power output (N = 338 ± 17 W, ITP = 319 ± 17 W) and a significant increase in time to complete a simulated time trial (N = 59.4 ± 1.9 min, ITP = 65.3 ± 2.6 min) occurred after ITP in conjunction with a 29% increase in global mood disturbance. The decline in performance was associated with a 9.3% reduction in maximal heart rate, a 5% reduction in maximal oxygen uptake, and an 8.6% increase in perception of effort. Despite the large reductions in performance, no changes were observed in substrate utilization, cycling efficiency, and lactate, plasma urea, ammonia, and catecholamine concentrations. These findings indicate that a state of overreaching can already be induced after 7 days of intensified training with limited recovery.
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“reduce symptoms of fatigue and overreaching [64–67]”
From Periodized Nutrition for Athletes (2017) · cites this paper as [65]
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Metadata
- Authors
- Halson, S. L., Bridge, M. W., Meeusen, R., Busschaert, B., Gleeson, M., Jones, D. A., & Jeukendrup, A. E.
- Affiliations
- Queensland University of Technology (AU)
- University of Birmingham (GB)
- Vrije Universiteit Brussel (BE)
- Venue
- Journal of Applied Physiology
- Publisher
- American Physiological Society
- Published
- 2002-09-01
- Volume
- 93
- Issue
- 3
- Pages
- 947-956
- ISSN
- 0161-7567 (ISSN-L)
- 8750-7587
- 1522-1601
- OpenAlex
- W2163199203
- Cited by
- 304
- References
- 34
- Citations by year
- 2026: 4 · 2025: 6 · 2024: 15 · 2023: 8 · 2022: 12 · 2021: 12 · 2020: 11 · 2019: 22 · 2018: 12 · 2017: 24 · 2016: 22 · 2015: 15 · 2014: 24 · 2013: 16 · 2012: 14
- FWCI
- 6.13
- Type
- journal article
- Language
- en
- Open access
- green
- jap.physiology.org
- Locations
- Journal of Applied Physiology (publishedVersion)
- PubMed (publishedVersion)
- QUT ePrints (Queensland University of Technology) (submittedVersion)
- e-space (Manchester Metropolitan University) (submittedVersion)
- University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
- VUBIR (Vrije Universiteit Brussel) (submittedVersion)
- Topics
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
- Health Sciences › Medicine › Physiology (medical) › Exercise and Physiological Responses
- Keywords
- intensified training, overtraining, fatigue markers, endurance cyclists, maximum power, time trial performance, mood disturbance, maximal heart rate, VO2max, perceived exertion, substrate utilization, cycling efficiency, lactate, serum urea, catecholamines, recovery training, training stress
- MeSH terms
- Adult, Affect, Bicycling, Exercise Test, Physical Exertion, Fatigue, Heart Rate, Humans, Male, Oxygen Consumption, Physical Education and Training, Surveys and Questionnaires, Self Concept, Time Factors, Biomarkers
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