Education.com
Try
Brainzy
Try
Plus

Here's To Your Heart

based on 22 ratings
Author: Nancy Rogers Bosse
Type

Physical Science

Grade

4th – 6th grades

Difficulty of Project

Medium

Cost

Less than $5.00

Safety Issues

None

Material Availability

Materials list requires purchasing a sports drink and having a stopwatch available. Other materials needed are readily available.

Approximate Time Required to Complete the Project

30 – 45 minutes to gather data; one day to write results and prepare the science project display.

Objective

To determine if a sports drink affects the heart rate of a student athlete during exercise 

Materials and Equipment

  • Sports drink (purchased at store)
  • Plastic cups
  • Drinking water
  • Stopwatch
  • Jumprope 

Background Information

Exercise is important for good health. It is also important to stay hydrated while exercising. During exercise the body loses water primarily through sweat. Water helps to cool the body. Water also helps to transport important nutrients throughout the body. It is important to keep hydrated before, during, and after exercise.  

Sweating during exercise is linked to a drop in blood volume. A drop in blood volume causes the heart to beat harder and faster to move the blood through the bloodstream. This is one of the causes of fatigue and cramps experienced during exercise. Drinking water during exercise will replete the blood volume and reduce the heart rate.  

Many sports drinks are on the market. Most sports drinks contain carbohydrates and electrolytes. The makers of sports drinks claim that carbohydrates and electrolytes in the drinks provide the body with additional energy helping the body to perform better. The question is whether any of these sports drinks provide benefits that water does not. For the purpose of this study, the affect of sports drinks on heart rate will be tested. 

Terms, Concepts, and Questions to Start Background Research

Terms

hydration: having water in the body

heart rate: the number of times the heart beats in a minute            

Concepts

Water is essential to life. Water helps the body function. Heart rate is an indicator of how well the heart is moving blood through the body. 

Research Questions
  • How do you get an accurate heart rate?
  • What is a resting heart rate?
  • What factors affect heart rate?
  • How does water help the body?
  • Why is water important during exercise?
  • Are sports drinks better at hydrating the body than water? 

Experimental Procedure

  1. Select 10 to 20 subjects. Most school science projects require permission slips for all subjects used in science investigations. Be sure to get all the necessary forms signed.
  2. Gather the necessary materials.
  3. Have the subject drink 250-ml of water. Then have the subject sit quietly for 2 minutes. After the two minutes, take the subject’s resting heart rate. Record the results.
  4. Have the subject jump rope for 5 minutes. Take the subject’s heart rate immediately after jumping rope. Record the results.
  5. Have the subject drink 250-ml cup of water. Take the subject’s heart rate again.
  6. After 15 minutes, have the subject drink 250-ml of a sports drink. Again, have the subject sit quietly for 2 minutes. After the two minutes, take the subject’s resting heart rate. Record the results.
  7. Have the subject jump rope for 5 minutes. Take the subject’s heart rate immediately after jumping rope. Record the results.
  8. Average the heart rates of each subject for both liquids. Compare the results.  

Bibliography

Articles

 “Proper Hydration for Exercise – Water or Sports Drinks” by Elizabeth Quinn, About.com, 2009. 

“Effectiveness of Sports Drinks” by Anne Marie Helmenstine, Ph.D., About.com, 2009. 

“Water vs. Sports Drinks” by Erica R. Hendry, USA Today, 2008.   

“Water and Health” at FreeDrinkingWater.com, 2009.                 

Websites

www.gatorade.com 

www.sportsmedicine.about.com 

www.freedrinkingwater.com

 

 

Add your own comment
Recommended Learning Products
Trust Education.com to find smart things kids love
Unlimited Workbooks and Worksheets
90% of Students Understand Concepts Better Since Using PLUS
Make Math Practice Fun and Engaging
Interactive Math Lessons for Elementary School Students
A Fun and Easy Way to Learn Programming
Proven approach quickly guides kids to success