Description of Study

The aim of the research study is to examine the effects of creatine monohydrate supplementation on perceived sleep quality and quantity in physically active individuals.

Location
Exercise and Performance Nutrition Laboratory (Fieldhouse 126)
209 S Kingshighway St
Saint Charles, MO 63301

Number of Visits
2

Time Commitment
Visit 1: 30-45 minutes
Visit 2: 15-30 minutes

Compensation
Two complimentary 4-compartment body composition (DEXA + bioelectrical impedance) scans (valued at $100 each) provided as part of study participation.

Points of Contact
Joesi Morey
epnl@lindenwood.edu

Research Sample Needed

• 50-60 healthy, active men and women

Inclusion Criteria

• Male or female participants between 18 – 50 years of age.
• Healthy defined as currently not being treated for an active cardiac, pulmonary, metabolic, immunological, neurological, respiratory, orthopedic, musculoskeletal, psychiatric, or reproductive disease or disorder. With the research team and principal investigator's discretion, some ongoing treatments will be permitted if a determination is made that the treatment will not increase the risk of study participation and the treatment will not confound with desired study outcomes.
• Participate in CrossFit (or similar high-intensity, functional training) ≥ 5x/week for ≥ 3 months. 
• All participants will be required to abstain from taking any additional forms of sleep aids or supplements that could potentially impact sleep quality or duration (such as melatonin, valerian root, magnesium, CBD, or other sleep-enhancing products) for four weeks prior to beginning this study and for the entire duration of the study.
• Willing and able to agree to the requirements and restrictions of this study, be willing to give voluntary consent, and carry out all study-related procedures. 

Exclusion Criteria

• Body mass index less than 18 or greater than 29.9 kg/m2. Males with a body mass index greater than 29.9 kg/m2, but a body fat percentage less than 27.5% fat will be accepted into the study. Females with a body mass index greater than 29.9 kg/m2, but a body fat percentage less than 32.5% fat will be accepted into the study. 
• Positive medical history and/or is currently being treated for some form of heart or cardiovascular, neurological impairment, disease or condition, immune disorder or disease, thyroid disease, kidney disease, renal failure, regular dialysis, liver disease, or other diagnosed hepatic impairment.
• Diagnosed with having Type I or Type II diabetes (determined as fasting blood glucose > 126 mg/dL).
• Diagnosed with major affective disorder or other psychiatric disorder that required hospitalization in the prior year
• History of cancer (except localized skin cancer without metastases or in situ cervical cancer within 5 years prior to screening visit).
• Participant has an abnormality or obstruction of the gastrointestinal tract precluding swallowing (e.g., dysphagia) and digestion (e.g., known intestinal malabsorption, celiac disease, inflammatory bowel disease, chronic pancreatitis, steatorrhea).
• Individuals with less than 3 months of ≥ 5x/week of CrossFit or similar training.
• Participants who are lactating, pregnant, or planning to become pregnant.
• Receipt or use of an investigational product in another research study within 30 days of beginning the study protocol.
• Any condition or abnormality that, in the opinion of the investigator, would compromise the safety of the participant or the quality of the study data.

Are You Eligible?

• Complete initial screening form for this study.

Information provided here reflects current IRB approval for this research. However, this information may be subject to change and updated accordingly.