Maybe something you learned the hard way, or something you found out right before making a huge mistake.
E.g., for audiophiles: don’t buy subwoofers from speaker companies, and don’t buy speakers from subwoofer companies.
Maybe something you learned the hard way, or something you found out right before making a huge mistake.
E.g., for audiophiles: don’t buy subwoofers from speaker companies, and don’t buy speakers from subwoofer companies.
Many apps will estimate them for you. The general formula for max heart rate is 220-age (if you’re 30, your max is probably around 190 bpm).
From there, the zones are usually calculated as % of max HR. Zone 5 is 90-100, 4 is 80-90, 3 is 70-80, 2 is 60-70, 1 is 50-60.
For our 30yo above, zone 2 would be around 114-133 bpm. That will feel super slow but that is the point, this is something you could do for a while and it should account for about 80% of your total exercise time in a week.
Edit: if you determine through training that your max is different, adjust it accordingly.