Cernovich @Cernovich
Because my maximum heart rate is 190 and VO2 max intervals are based on percentage (> 93%) of max HR. This is why you need to get lab tested or invest in a good heart rate monitor to find your true max HR. — PolitiTweet.org
Ardon Lukas @ArdonLukas
@Cernovich Why would you want your heart rate that high? Seems 150-170 is an optimal higher limit.