Amongst HRV, HIIT and VO2 max, you might have encountered RPE or, to give it its full title, rate of perceived exertion ... people use something called the Borg scale, which ranges from six ...
You can also judge your perceived effort ... in even faster improvements to VO2 max. According to a 2013 meta-analysis, the most effective interval length was between three and five minutes.
Designed to offer deeper insights into performance and well-being, Prowatch X will come equipped with VO2 Max Measurement and Body Energy Monitoring, features typically found in high-end smartwatches.
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