Identifying exercise intensity boundaries has been shown to be important during endurance
training for performance enhancement and rehabilitation. Unfortunately, even though …

Exercise intensity distribution is crucial for exercise individualization, prescription, and
monitoring. As traditional methods to determine intensity thresholds present limitations, heart …

Recent study points to the value of a non-linear heart rate variability (HRV) biomarker using
detrended fluctuation analysis (DFA a1) for aerobic threshold determination (HRVT) …

Past attempts to define an anaerobic threshold (AnT) have relied upon gas exchange
kinetics, lactate testing and field-based evaluations. DFA a1, an index of heart rate (HR) …

A non-linear heart rate variability (HRV) index based on fractal correlation properties called
alpha1 of Detrended Fluctuation Analysis (DFA-alpha1), has been shown to change with …

Aerobic and anaerobic thresholds of the three-zone exercise model are often used to
evaluate the exercise intensity and optimize the training load. Conventionally, these …

Background The non-linear index alpha 1 of Detrended Fluctuation Analysis (DFA a1) of
heart rate variability, has been shown to be a marker of fatigue during endurance exercise …

An index of heart rate (HR) variability correlation properties, the short-term scaling exponent
alpha1 of detrended fluctuation analysis (DFA a1) has shown potential to delineate the first …

During incremental exercise, two ventilatory thresholds (VT1, VT2) can normally be
identified from gas exchange and ventilatory measurements, such as oxygen uptake, carbon …

Purpose The short-term scaling exponent alpha1 of detrended fluctuation analysis (DFA-a1)
of heart rate variability (HRV) has shown potential to delineate the first ventilatory threshold …