Technology

Analyzing gas exchange – VO₂, VCO₂, ventilation – is now the gold standard for understanding exercise physiology, determining ventilatory thresholds, and personalizing training. However, the market offers highly contrasting technological approaches: on the one hand, cumbersome, complex, expensive, but extremely precise systems; on the other, much more affordable and simpler devices, but with limited accuracy. This article discusses data quality, trade-offs, and why PAIRFS dec

Connected devices have transformed training: heart rate, power, cadence, speed, oxygen saturation… but one essential parameter is still largely absent from current wearables: breathing . However, breathing is the most direct, sensitive and reliable physiological signal for understanding what is happening in an athlete's body. After years of innovations focused on cardio and power, a new generation of sensors is emerging: respiratory wearables . And this revolution begins no

And how does this fit into the long-term vision of a portable CPET? In endurance sports, breathing is one of the most powerful physiological signals. Yet, measuring respiratory gases remains a complex field, dominated by cumbersome, expensive systems reserved for laboratories. At PAIRFS, we want to change that: to make key metabolic information accessible to all athletes , on the field, during training. But to achieve this, one fundamental rule must be respected: 👉 Don't me