1. Heart rate, also known as pulse, is the number of times a person's heart beats per minute. A normal heart rate depends on the individual, age, body size, heart conditions, whether the person is sitting or moving, medication use, and even air temperature. Emotions can even have an impact on a person's heart rate. For example, getting excited or scared can increase the heart rate. However, most importantly, regular exercise lowers the heart rate by making heart muscles work more efficiently.

What do you think the resting heart rate is for the average person?

2. Use this table to record each your resting heartbeat. Use your index and middle fingers. Do not use your thumb, as it has a pulse of its own and will give you an inaccurate reading. Place the two fingers on your wrist, just below the base of the thumb. Count the number of beats (pulses) for one minute. Record your results below

Heartbeats per minute

3.Question.

Now, it is time to exercise! Use the table below to record each group member's heartbeat after jogging in place or after doing jumping jacks for one minute. Use your index and middle fingers, as before, on the base of your thumb to find your pulse. Each student must do one minute of exercise. Then, count the number of beats (pulses) for one minute, two minutes, and three minutes after exercising. Start counting right after you have finished exercising and record the results below. After each minute mark, start your count again! Note: You will only exercise once for this lab.

Choose one(1) of the exercises below and fill in the table.

Exercise	Heartbeats after one minute has passed	Heartbeats after two minutes have passed	Heartbeats after three minutes have passed
Jogging in place

Or

Exercise	Heartbeats after one minute has passed	Heartbeats after two minutes have passed	Heartbeats after three minutes have passed
Jumping jacks

1. Give your heartbeats after one minute has passed.

2. Without exercising again, begin your counting again and give your heartbeats after two minutes have passed.

3. Without exercising again, begin counting again and give your heartbeats after three minutes have passed.