Similar Slow Component of Oxygen Uptake and Ventilatory Efficiency between an Aerobic Dance Session on an Air Dissipation Platform and a Constant-Load Treadmill Test in Healthy Women

SIMPLE SUMMARY: The evaluation of the kinetics of oxygen uptake is considered an essential practice to analyze the effect of exercise intensity, mainly in endurance exercise. This study aimed to compare the slow component of oxygen uptake, ventilatory efficiency, blood lactate concentration, and the rating of perceived exertion between an aerobic dance session on an air dissipation platform and a constant-load treadmill test. Seventeen young adult and healthy women (aged 23.5 ± 2.2 years) completed three evaluation sessions. In session 1, an incremental test to exhaustion was completed. In sessions 2 and 3, the participants were randomly assigned to the aerobic dance session on an air dissipation platform or to a treadmill test at a constant-load corresponding to the first ventilatory threshold. No significant differences were found between the constant-load treadmill test and aerobic dance session on an air dissipation platform regarding the slow component of oxygen uptake, ventilatory efficiency, and the rating of perceived exertion. Higher blood lactate concentrations were observed in the aerobic dance session on an air dissipation platform than in the constant-load treadmill test. In conclusion, two different exercise modalities elicited similar slow components of oxygen uptake, ventilatory efficiency, and ratings of perceived exertion, even though the blood lactate concentrations were different. ABSTRACT: There is a lack of evidence about the slow component of oxygen consumption ([Formula: see text]) and ventilatory efficiency (slope VE·VCO(2)(−1)) during an aerobic dance (AD) session on an air dissipation platform (ADP) despite the key role played in endurance exercises. This research was designed to assess [Formula: see text] , ventilatory efficiency, and blood lactate concentration by comparing two exercise modes: AD session on an ADP versus treadmill test at a constant-load intensity of the first ventilatory threshold (VT1). In the first session, an incremental treadmill test was completed. In sessions 2 and 3, the participants were randomly assigned to the AD session on an ADP or to a treadmill constant-load test at VT1 intensity to determine their cardioventilatory responses. In addition, their blood lactate levels and ratings of perceived exertion (RPE, CR-10) were evaluated. No significant differences were found between the constant-load treadmill test and AD session on an ADP with respect to [Formula: see text] , VE VCO(2)(−1) slope, and RPE (p > 0.05). Higher blood lactate concentrations were observed in an AD session on an ADP than in a constant-load treadmill test at 10 min (p = 0.003) and 20 min (p < 0.001). The two different exercise modalities showed similar [Formula: see text] and VE·VCO(2)(−1) slope, even though the blood lactate concentrations were different.