❤ HBR Zone2 == 65% about 120/min (Assume Max Heart Beat Rate 180/min)
✅ Zone1 == 55% Max HBR✅ Zone2 == 65% Max HBR
✅ Zone3 == 75% Max HBR
✅ Zone4 == 85% Max HBR
✅ Zone5 == 95% Max HBR
(1) Max HBR (Max hearbeat rate) rough formula
Rough Max HBR == (220 - Your Age Yr)
e.g. 220 - 70yro = 150/min
e.g. 220 - 60yro = 160/min
e.g. 220 - 50yro = 170/min
e.g. 220 - 40yro = 180/min
e.g. 220 - 30yro = 190/min
e.g. 220 - 20yro = 200/min
(2) Of course, you could also estimate your max HBR by real exercise
e.g. 100M/200M/400M sprint/dash;
(3) And of course,
you max HBR will be increased if you continue to do proper exercise / improve your health.