“Participants performed the exercise intervention within a certain range in the morning or evening. Some participants performed exercise interventions in line with their chronotype, while others exercised at the opposite time, such as a morning person exercising in the evening, as assigned in their group.
Researchers measured participants’ blood pressure, heart rate variability, peak oxygen consumption, sleep quality, fasting blood sugar, and “bad” cholesterol levels at baseline and then again after the exercise intervention ended…”