Temperature and creatine kinase changes during a 10d taper period in sprinters
Paweł Korman1, Krzysztof Kusy2, Adam Kantanista3
1Chair of Physical Therapy and Sports Recovery, Poznan University of Physical Education, Poland.
Physiological Measurement
|November 25, 2021
Summary
Intense speed-power training over multiple days significantly lowered skin temperature and increased creatine kinase (CK) levels in elite sprinters. Circadian rhythms for temperature were disrupted after about a week, suggesting potential physiological deregulation.
Area of Science:
- Sports Science
- Exercise Physiology
- Biochemistry
Background:
- High-intensity training is crucial for athletic performance.
- Understanding physiological responses to training load is vital for athlete health and performance.
- Circadian rhythms influence physiological processes, including recovery and muscle function.
Purpose of the Study:
- To investigate the impact of successive speed-power training sessions on skin temperature and creatine kinase (CK) levels.
- To analyze concurrent circadian changes in these physiological markers during a training camp.
- To determine the correlation between skin temperature and CK levels during intensive training.
Main Methods:
- Prospective cohort study involving 17 elite sprinters over a 10-day training camp.
- Daily measurement of resting leg skin temperature and blood CK levels (morning and evening).
- Infrared thermography used for skin temperature assessment.
Main Results:
- A progressive decrease in resting skin temperature was observed, becoming significant from day 6 (males) and day 8 (females).
- Blood CK levels increased in males from day 8 but showed no significant change in females.
- Circadian rhythm alterations occurred, with temperature patterns reversing after approximately 6 days of training.
Conclusions:
- Multi-day speed-power training leads to reduced skin temperature and elevated CK levels.
- Intensive training can disrupt the normal circadian rhythm of body temperature.
- Physiological deregulation may occur after approximately 6 days of consistent, high-intensity exercise.
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