Heart rate vary from individual to individual. The lower the heart rate when at rest the better, since it suggests a fitter and healthier body.

The following list is a rough and ready guide

• Light exercise–100 and above.
• Moderate–120.
• Heavy–140.
• Very heavy–150 to 160.

The following table is a guide to desirable effort according to age
Beats

Age	(Maximum) Per minute(220 minus age)	Target Rate (65%–85%)
20	200	120–170
30	190	114–162
40	180	108–153
50	170	102–145
60	160	96–136
70	150	90–128
80	140	84–119