A recent Finnish study has found that measuring adolescents' maximal oxygen uptake often requires a brief verification phase to ensure reliable results. The researchers also note that even small ...

HIIT is commonly performed at about 80 percent of peak heart rate, while sprint intervals are more of an “all-out” effort designed to get you to 100 percent of your VO2 max, the researchers noted.

Apple announced today at a virtual event that its upcoming Series 6 Apple Watch will include a blood oxygenation sensor, a first for the Apple Watch (but not for the wearable space). As it did with ...