Effects of CBD on 2 Mile Run Time Trial Performance

The Effects of CBD on 2 Mile Run Time Trial Performance, GI Distress, and Anxiety in Moderately Active Females

Individuals who engage in endurance events tend to experience higher levels of stress within the body, mind, and gut, that often lead to impairment of performance. Based on previous studies, CBD has the potential relieve gut distress, and reduce pre-race anxiety thus resulting in an improvement in sport performance. Given the current research on the use of CBD in active individuals, the aim of this pilot study is to explore the effects of CBD compared to a placebo on anxiety, GI distress and a 2-mile running performance in a moderately active population identifying as female.

Study Overview

• Status: Active, not recruiting
• Conditions: Healthy
• Intervention / Treatment: Dietary supplement: Cannabidiol Capsules

Detailed Description

This study will recruit moderately active, healthy individuals (N=30) who identify as female between the ages of 18-40 years who have some running experience and are running at least 2 miles, 2 times per week. This will be a cross over study, so each participant will be their own control, receiving either the placebo and CBD on two separate occasions. The females recruited will report to the Exercise Physiology lab in Gunter Hall on the University of Northern Colorado's campus for testing a total of two times.

The first visit will include initial paperwork such as the informed consent, physical activity readiness questionnaire (PARQ), Menstrual Cycle Questionnaire and a screening to determine current activity levels, uses CBD, THC and any other legal drugs/medications. This first interaction allows study staff to ensure that qualify to take part in the study.

After informed consent is obtained, the participant will be given either the placebo or CBD capsule with a controlled higher fat food (88 Acres protein bar) 2 hours before the testing protocol along. Once the CBD capsule or placebo is taken, participants will complete caffeine consumption, exercise and running questionnaires which will be administered on a tablet with study staff after 1.5 hours or waiting.

During the first visit, individuals will stay for a standardized period (2 hours) before doing a urine analysis to determine hydration status and taking v lactate, and heart rate variability. Current anxiety symptoms will also be evaluated

Once baseline measurements obtained, individuals will then be instructed to run 2 miles a treadmill as fast as possible. Lactate will be monitored three times during the test (.50 mile mark, halfway point (1 mile) and just before finishing the time trial run at the 1.98 mile mark). All participants will be taken through a 30-minute cool down period walking 2.5 mph on the treadmill while having lactate measured every 5, 10, 15, and 30 minutes post finishing. Finish time, GI distress questionnaire, and overall feelings will be recorded post finish of the 2 mile time trial.

Participants will be given a 25-30 day time between visits 1 and 2 to ensure exercise during the same menstrual cycle phase (hormone cycle) for those that are cycling. During the second and final visit, participants will undergo the same procedure, however, will be given the opposite oral administration from the first visit (either placebo or CBD).

• Study Type: Interventional
• Enrollment (Estimated): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Colorado
    • Greeley, Colorado, United States, 80639
      • University of Northern Colorado

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Running at least 2 miles 2 times per week.

Exclusion Criteria:

• Current diagnosis of a chronic disease or serious mental health disorder.
• Current or use of cannabis or cannabis products within the past 4 weeks
• Currently in perimenopause or menopause, transgender female not undergoing hormone treatment (estrogen)
• Having any underlying health concerns or have any current injuries that can be worsened with exercise

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Cannabidiol; Cannabidiol capsules 2 hours prior to 2 mile run.	Dietary supplement: Cannabidiol Capsules; 300 mg of cannabidiol administered 2 hours before 2 mile run
Placebo Comparator: Placebo; Placebo capsules 2 hours prior to 2 mile run.	Dietary supplement: Cannabidiol Capsules; 300 mg of cannabidiol administered 2 hours before 2 mile run

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Difference in Time Trial Times	Time to run 2 miles on an indoor treadmill	10-25 minutes
Difference in Anxiety Measured with the State Trait Anxiety Inventory	This questionnaire will be administered just before each run to assess the individual's current anxiety symptoms.The State-Trait Anxiety Inventory (STAI) consists of 20 items aimed at evaluating trait anxiety and 20 for state anxiety. All items are rated on a 4-point scale (e.g., from "Not at all" to "Very much so"). Higher scores suggest elevated anxiety.	5 minutes
Difference in Blood Lactate Concentrations	Blood lactate will be measured just before the time trial, 3 minutes after the start of the run, after 1 mile and 1.98 miles of running and after 5, 10, 15, and 30 minutes of walking recovery. Higher lactate concentrations are associated with more effort during exercise and a slower recovery from exercise.	45 minutes
Difference in Gastrointestinal Distress	This questionnaire consists of 12 questions related to distress symptoms. Responses are absent, mild, moderate, severe. The higher the score, the more GI distress is present. This assessment will be completed after the 2 mile run.	5 minutes
Different in Heart Rate Variability	The root mean square successive difference method will be used with the 10 second electrocardiogram reading. Higher heart rate variability is associated with better health.	5 minutes

Collaborators and Investigators

• Sponsor: University of Northern Colorado

Study record dates

Study Major Dates

• Study Start (Actual): November 11, 2023
• Primary Completion (Estimated): May 30, 2024
• Study Completion (Estimated): May 30, 2024

Study Registration Dates

• First Submitted: March 8, 2024
• First Submitted That Met QC Criteria: April 11, 2024
• First Posted (Actual): April 15, 2024

Study Record Updates

• Last Update Posted (Actual): June 3, 2024
• Last Update Submitted That Met QC Criteria: May 31, 2024
• Last Verified: May 1, 2024

More Information

Terms related to this study

• Keywords: Cannabidiol
• Additional Relevant MeSH Terms: Anticonvulsants; Cannabidiol
• Other Study ID Numbers: 2311054791

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No