After researching and testing various endurance supplements, we have identified the best option for athletes and fitness enthusiasts: the Optimum Nutrition Essential Amino Energy Powder.

Keeping track of VO2 max on your Garmin is a great way to monitor your aerobic fitness and cardiorespiratory efficiency, and viewing this figure is possible both on the watch and in Garmin Connect.

If you’ve started diving into the running data you get from your smart watch or treadmill, you’ve most likely heard of VO2 max. But what does VO2 max actually mean, and why should you care about it if ...