Key result
A 2-week training overload in male endurance athletes decreased cardiac parasympathetic control during slow-wave sleep (HFnu 50.0% vs 61.3% at baseline, p<0.05).
Why the study?
Does a training overload and subsequent taper alter night and postexercise cardiac autonomic control in male endurance athletes?
Population
11 male endurance athletes
Comparison
2-week training overload period followed by a… vs Baseline (pre-overload period)
Design
Cohort
Follow-up
3 weeks (2-week overload and 1-week taper)
Authors
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May warrant caution with overload in endurance athletes; leaves open utility for overreaching detection.
Does a training overload and subsequent taper alter night and postexercise cardiac autonomic control in male endurance athletes?
Absolute Event Rate: 50% vs 61.3%
p-value: p=<0.05
Functional overreaching in endurance athletes alters specific indices of cardiac autonomic control, such as parasympathetic control during slow-wave sleep and post-maximal exercise heart rate recovery, highlighting the need for selective monitoring.
Dupuy et al. (2013) studied Functional overreaching (n=11). Training overload vs. Baseline was evaluated on Cardiac parasympathetic control during slow-wave sleep (HFnu) (p=<0.05). A 2-week training overload in male endurance athletes decreased cardiac parasympathetic control during slow-wave sleep (HFnu 50.0% vs 61.3% at baseline, p<0.05).
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