Assess students' understanding of physiological cardiorespiratory adaptations to regular endurance training in healthy adults, covering central changes (cardiac output, stroke volume, resting and submaximal heart rate), peripheral adaptations (capillary density, mitochondrial biogenesis, oxidative enzyme activity, muscle fiber metabolic shifts), blood and ventilatory changes (blood volume, hemoglobin concentration, ventilatory efficiency), effects on VO2max and lactate threshold, typical time courses and underlying mechanisms, and how training intensity/duration modulate these adaptations and their assessment.