Key result
Continuous monitoring of blood oxygen saturation by pulse oximetry during maximal exercise in female athletes showed that desaturation time can predict 80% of the second ventilatory threshold values.
Why the study?
The study aimed to address myths surrounding women's participation in sport reflected in respiratory physiology by evaluating continuous pulse oximetry monitoring during maximal exercise in female athletes.
Does continuous monitoring of blood oxygen saturation correlate with the second ventilatory threshold during a maximal exercise test in healthy female athletes?
Observational (n=27)
Does continuous monitoring of blood oxygen saturation correlate with the second ventilatory threshold during a maximal exercise test in healthy female athletes?
Pulse oximetry is a simple and non-invasive technique that correlates well with ventilatory thresholds to study the physical condition of female athletes during exertion.
Answers are grounded in this paper and cite their sources.
May support non-invasive VT2 estimation in female athletes; hypothesis-generating pending prospective validation.
The myths surrounding women's participation in sport have been reflected in respiratory physiology. This study aims to demonstrate that continuous monitoring of blood oxygen saturation during a maximal exercise test in female athletes is highly correlated with the determination of the second ventilatory threshold (VT2) or anaerobic threshold (AnT). The measurements were performed using a pulse oximeter during a maximum effort test on a treadmill on a population of 27 healthy female athletes. A common behavior of the oxygen saturation evolution during the incremental exercise test characterized by a decrease in saturation before the aerobic threshold (AeT) followed by a second significant drop was observed. Decreases in peripheral oxygen saturation during physical exertion have been related to the athlete's physical fitness condition. However, this drop should not be a limiting factor in women's physical performance. We found statistically significant correlations between the maximum oxygen uptake and the appearance of the ventilatory thresholds (VT1 and VT2), the desaturation time, the total test time, and between the desaturation time and the VT2. We observed a relationship between the desaturation time and the VT2 appearance. Indeed, a linear regression model between the desaturation time and the VT2 appearance can predict 80% of the values in our sample. Besides, we suggest that pulse oximetry is a simple, fairly accurate, and non-invasive technique for studying the physical condition of athletes who perform physical exertion.
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Martín-Escudero et al. (2021) conducted an observational in Healthy female athletes (n=27). Continuous monitoring of blood oxygen saturation by pulse oximetry was evaluated on Correlation between desaturation time and the second ventilatory threshold (VT2). Continuous monitoring of blood oxygen saturation by pulse oximetry during maximal exercise in female athletes showed that desaturation time can predict 80% of the second ventilatory threshold values.
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