Is 190 beats per minute too high for a 47 year old male during exercise?

See website info at http://www.nemahealth.org/programs/healthcare/heart_rate_pulse.htm Normal max is calculated as (220-your age) or (220-47)=173 If starting excercise the recommended max pules rate is (220-your age) x 0.8= 173 x.8=138.4