An interventional study of Dietary Supplement and Placebo in Muscle Damage, sponsored by University of Saskatchewan. Recruiting at 1 site in Canada. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-28.
Sponsored by University of Saskatchewan · Not applicable, Interventional, and Treatment
This study will evaluated the effect of Saskatoon berry juice on recovery from muscle-damaging exercise.
Saskatoon berries are high in polyphenols which are are anti-inflammatory and act as anti-oxidants. They therefore have potential to protect muscle from damage induced by intense exercise. Thirty participants will be randomized to receive Sasaktoon berries (375 ml) or placebo every day for 10 days. On the seventh day participants will perform 6 sets of intense biceps curl exercise. Isometric muscle strength, muscle swelling, and muscle soreness will be assessed before exercise, immediately after exercise, and 24, 48, and 72 hours after the exercise session. We hypothesize the group receiving Saskatoon berries will have faster recovery of muscle strength, and reduction in swelling and muscle soreness after the exercise session.
University of Saskatchewan is the lead sponsor of 243 studies on the registry; 34 are open to participants now.
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Exclusion Criteria:
Placebo (375 ml)
Dietary Supplement: Placebo
Saskatoon berry juice
Dietary Supplement: Dietary Supplement
Saskatoon berries (375 ml)
Placebo (375 ml)
Change in isometric biceps strength with a dynamometer (Nm)
Time frame: 72 hours
Change in biceps muscle thickness with ultrasound (cm)
Time frame: 72 hours
Change in muscle soreness with visual analog scale (score ranges from 0 to 10). No soreness = 0, maximal soreness = 10
Time frame: 72 hours
Plan to share: No
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