To figure this out, deduct your age from 220. Suppose your age is 40, deduct this from 220 and you get 180.

50% of 180 is 90 beats a minute,
60% of 180 is 108 beats a minute,
70% of 180 is 126 beats a minute and so on.

Don’t jump into 70% work straight away. Start with 50% and slowly work your way up to the 70% upper limit.

Start with no more than 10 minutes, and work up to 20 minutes. Once you’re comfortable with working out for 20 minutes at 70% then try to increase the heart rate up to 80%.

Mix up your cardiovascular activities in the gym. Use the treadmill, skipping, rower, climber, and bike and other equipment that might be available to you.

Boxing

The boxing stance is the posture a boxer takes before and after every action depending on whether you are left or right handed. We’ll be dealing with the most common; right-handed. For left-handed people, just reverse the instructions.

Stand with your feet shoulder width apart, with your left foot in front of your right foot. Your right heel should be slightly raised with your left foot flat on the floor and toes pointing ahead.

Bend your knees a little and balance your weight comfortably and evenly.

Place your elbows close to your body with your left fist held at head height and in a position that corresponds to your left foot.

The right fist should be at head height also and guarding the chin, with both elbows protecting your body and both fists protecting your chin.

This is your defensive and offensive position after throwing punches, so please practice this before going any further. When moving forward in this boxing stance the left foot moves forward first and then the right follows.

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