Why the study?
How does overtraining affect cardiac autonomic activity in a junior cross-country skier?
Population
1 junior cross-country skier presenting with reduced performance in competitions, early breathlessness…
Comparison
Power spectral analysis of heart rate… vs Baseline and after recovery, as well as control…
Design
Case_report
Authors
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May indicate parasympathetic predominance in overtraining; hypothesis-generating and requires confirmation in prospective athlete cohorts.
How does overtraining affect cardiac autonomic activity in a junior cross-country skier?
Overtraining in athletes may be associated with a cardiac autonomic imbalance characterized by extensive parasympathetic modulation, as evidenced by increased high-frequency heart rate variability and reduced resting heart rate.
Hedelin et al. (2000) studied this question.
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