HA HA not my BJ

[Mike Simonds]

Here is how to calculate your training levels:

Take 220 (226 if you are a woman).

Subtract your age.

Multiply the result by 65%, 75%, 85% and 92%.

For example, I'm a 44 year-old man:

220 - 44 = 176.

176 x 65% = 114 which is the warm-up range.

176 x 75% = 132 which is the best aerobic fat-burning range.

176 x 85% = 150 which is the start of the strength building range.

176 x 92% = 162 which is the recommended maximum heart rate you should not exceed during a work-out.

Theory is that if you train at a sustained rate of greater than 85% you risk muscle injury and heart failure.