The Appalachian State University Human Performance Laboratory is recruiting for a new study entitled Sustained Energy: Influence of ingesting fruit-based carbohydrates and chia seed oil on human running performance. The Principal Investigator is David C. Nieman, DrPH, director of the Appalachian State University Human Performance Laboratory at the North Carolina Research Campus in Kannapolis, NC.
What is the purpose of this research?
Carbohydrates from grains, fruits, and sugars are an important fuel for prolonged and intensive running, especially during the first 90 minutes. As exercise continues, muscles begin to burn more fats. Few sports nutrition products contain fats, and this study will help determine if ingestion of both carbohydrates and fats improves long-term running performance. Chia seeds contain an important fat called alpha-linolenic acid (ALA), and this type of omega-3 fat may be especially useful during running because the muscles can use ALA better than other types of fats. The purpose of this project is to determine if consuming ~500 kcal (7 kcal/kg) of a combination of fruit-based carbohydrates and chia seed oil improves the length of time you can run to exhaustion on a treadmill compared to water, fruit-based carbohydrates, or chia seed oil intake alone.
Who can take part in this research?
You will be one of 25 male and female adult long-distance runners in this study, ages 18 to 55 years. You are invited to take part in this study if you are healthy, can run 2.5 to 4 hours to exhaustion on a lab treadmill, and are willing to come four times to the lab in the morning (two weeks apart) to run 2.5-4 hours under different dietary conditions.
What will I be asked to do?
The research procedures will be conducted in the Human Performance Laboratory managed by Appalachian State University (ASU) at the North Carolina Research Campus (NCRC) in Kannapolis, NC, 600 Laureate Way. You will need to come here 5 times during the study, with baseline testing taking about 60 minutes and each of the four lab exercise sessions taking about 4-5 hours. Two weeks prior to the first running trial, you will report to the NCRC Human Performance Lab for orientation/baseline testing for VO2max and body fat percentage. After this you will report to the lab four times two weeks apart at 8 am in an overnight fasted and rested state. A 35 ml blood sample will be collected after a 5 minute seated rest. You will then ingest (in random order across lab visits), one of four beverages from pouches containing water, or 500 calories from fruit-based carbohydrates (primarily apples), chia seed oil or a combination of fruit carbohydrates and chia seed oil. At 8:30 am, you will run on a laboratory treadmill with the speed set at 70% of VO2max. You will receive ~250 kcal additional product after 1 hour of running. You will run as long as possible at the same speed until exhaustion. Blood samples will be taken immediately pre- and post-exercise, and 1-h post-exercise totaling 4 blood samples per test session.
What are the dates for the study?
April 22-26 baseline
May 6-10 first run
May 20-24 second run
June 3-7 third run
June 17-21 fourth run
Will I be paid for taking part in this research?
We will pay you $800 for the time you volunteer while being in this study.
How do I sign up for the study or obtain more information?
E-mail ASU-NCRC@appstate.edu or call 704-250-5351.