Comparison of Heart Rate Variability Recording With Smart Phone Photoplethysmographic, Polar H7 Chest Strap and Electrocardiogram Methods.

Day-to-day Heart Rate Variability (HRV) Recordings in World Champion Rowers: Appreciating Unique Athlete Characteristics.

Cardiac autonomic response following high-intensity running work-to-rest interval manipulation.

Heart-rate variability and training-intensity distribution in elite rowers.

Monitoring training with heart rate-variability: how much compliance is needed for valid assessment?

Training adaptation and heart rate variability in elite endurance athletes: opening the door to effective monitoring.

Evaluating training adaptation with heart-rate measures: a methodological comparison.

Heart rate variability in elite triathletes, is variation in variability the key to effective training? A case comparison.

Interpreting daily heart rate variability changes in collegiate female soccer players.

The Beneficial Effect of Parasympathetic Reactivation on Sympathetic Drive During Simulated Rugby Sevens.

Reliability of resting and postexercise heart rate measures.

Monitoring endurance running performance using cardiac parasympathetic function.

Influence of cold water face immersion on post-exercise parasympathetic reactivation.

Nocturnal heart rate variability following supramaximal intermittent exercise.

Cardiac autonomic responses to repeated shuttle sprints.

Effect of body posture on postexercise parasympathetic reactivation in men.

Exercise-induced plasma volume expansion and post-exercise parasympathetic reactivation.

Noninvasive assessment of cardiac parasympathetic function: postexercise heart rate recovery or heart rate variability?

Parasympathetic reactivation after repeated sprint exercise.