About this trial
The purpose of this clinical trial is to determine how certain food items affect oxidative stress, inflammation, and performance recovery from exercise induced muscle damage in a resistance trained population. The main questions The investigators aim to answer are the following:
* Do Haskaps speed the recovery of oxidative stress and inflammation markers after an intense lower body workout in resistance trained adults? * Do Haskaps speed the recovery of performance measures after an intense lower body workout in resistance trained adults? * The data collected in this investigation may also be used to ask additional questions not yet identified. For example, the investigators may use the stored samples to evaluate how the blood metabolites of participants differ before and after intense exercise. These additional questions are called secondary analyses. Please note that no genetic analysis will be conducted and racial and ethnic differences among participants will not be used in any secondary analyses.
Researches will compare Haskap juice to a color, flavor and carbohydrate matched placebo to see if Haskaps speed recovery in inflammation, oxidative stress and performance.
* Participants will be asked to drink either Haskap juice or placebo and follow a low polyphenolic diet * Participants will perform an intense resistance workout * Participants will have their blood drawn before and after the workout * Performance will be analyzed at 24, 48 and 72 hours after the workout
Eligibility criteria
This trial accepts healthy volunteersQualifiers
2+ years of barbell squat experience
Currently squatting at least once a week
Disqualifiers
BMI <18 or > 40 kg/m²
potential allergy to Haskap or placebo ingredients
anti-inflammatory, weight loss, anabolic steroids, testosterone, or other drugs that may interfere with the measures of the study or any other medications that may interfere with study measures
pregnant or lactating woman
Trial design
Parallel
Treatments tested in this trial
Haskap berry smoothie
Dietary supplementA smoothie blend of berries and water
Placebo Comparator
Dietary supplementA smoothie with no polyphenolic content and matched in carbohydrate composition to the experimental haskap smoothie
Treatment groups
Trial outcomes
Primary outcomes
Force Production
Maximal Voluntary Contraction (MVC) to assess force production of knee extensors at 60 degrees.
Barbell Velocity
Barbell velocity will be measure to determine how squat velocity recovers over the course of the study.
Vertical Jump
Force plates will be used to evaluate vertical jump height.
Inflammation (pg/mL)
Serum interleukin (IL) IL-6, IL-10, IL-1ra, tumor necrosis factor alpha (TNF-alpha),
Secondary outcomes
Soreness
Soreness will be evaluated objectively by participants drawing a line on a scale of 0-10 of how sore their legs are. 0 represents no soreness at all and 10 represents the most muscular soreness the participant has felt. A lower number could indicate less inflammation and muscular damage.
Acute Diet
24-hour dietary recall using the Automated Self-Administered 24-hour Dietary. Assessment Tool (ASA24). Outcome is macronutrient and micronutrient composition of food entry.
Sleep Questionnaire
Participants report information on the previous night's sleep. What time they went to sleep, how long it took them to fall asleep, how many hours they slept, whether these were normal sleep and wake times and how restful they perceive their sleep to be on a scale of 1 to 10. 1 indicates their sleep was not restful at all and 10 indicates their sleep was as restful as possible.
Sponsors and contacts
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Montana State University
Lead sponsor
Montana State Agricultural Experiment Station
Collaborator