There are many different types of exercise to choose from. Picking the type that’s right for you can be the difference between a slimmer, healthier you and a muscle injury.

Before beginning any exercise program, it is recommended you visit your physician for a complete physical examination. During the visit, you should ask if there are any types of exercise you should avoid.

One main purpose of exercising is to increase your heart rate for a certain length of time. Aerobic exercise will increase your heart rate faster than casual stretching or mild cardiovascular exercise.

It is important to exercise within 70 to 80 percent of your maximum heart rate. Exercising within this range is your target heart rate. To calculate your target heart rate, use the following formula:

• Maximum heart rate (MHR) = 220 – your age. The MHR of a 50-year-old would be 170 (220-50).

Your MHR multiplied by 0.7 is the low range of your target heart rate. For example, while exercising, a 50-year-old should reach a heart rate of least 119 (170 x 0.7).

Your MHR multiplied by 0.8 is the high range of your target heart rate. For example, a 50-year-old should not exceed a heart rate of 136 (170 x 0.8) while exercising.

Warming up prior to exercising can prevent a muscle or bone injury. This should be done for at least five to ten minutes, no matter the type of exercise that is to follow.