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Pacing in a 94-year-old runner during a 6-hour run
Beat Knechtle1,2, Pantelis T Nikolaidis3
1Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland.
Open Access Journal of Sports Medicine
|February 15, 2018
Summary
This case report details the pacing strategy of a 94-year-old male runner in a 6-hour race, preparing for a marathon. His running speed decreased linearly, with physiological markers showing expected changes post-exertion.
Area of Science:
- Gerontology
- Sports Medicine
- Physiology
Background:
- Limited data exists on the pacing and physiological responses of ultra-endurance runners aged 90 and above.
- Understanding these aspects is crucial for supporting athletic longevity and performance in extreme age groups.
Observation:
- A 94-year-old male runner completed 24.304 km in a 6-hour race, demonstrating a nearly linear decrease in running speed over time.
- Physiological markers including body mass, body fat percentage, and fat-free mass showed slight decreases, while blood markers like hemoglobin and hematocrit increased post-race.
Findings:
- Running speed declined significantly, averaging 5.3±0.4 km/h in the first hour and 3.5±1.4 km/h in the last hour (p=0.015).
- Post-race, C-reactive protein peaked on day 1, creatine kinase remained elevated for 4 days, and creatinine/potassium normalized during recovery.
Implications:
- Extrapolation suggests a marathon finish time between 8.3 to over 11 hours for this M95 age group athlete.
- This case provides valuable insights into the physiological capabilities and endurance pacing of centenarian-aspiring marathoners.
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