Scientists from Concordia University (Canada) found that taking cranberry extract supplements can improve muscle performance and reduce post-workout fatigue. Research results published In the Journal of Physical Activity and Nutrition.
14 runners participated in the study. Athletes were asked to complete two races: 1500 and 400 meters. The subjects then took a cranberry extract supplement and repeated the exercise two hours later. After the results were evaluated, study participants were instructed to consume a similar supplement for 28 days after the experimental studies.
After the period of using cranberry extract, the subjects were asked to run 1500 and 400 meters again. Scientists explained that the anaerobic system comes into play in short-term intense runs, and the aerobic system comes into play in long-term runs.
Anaerobic exercise is a vigorous, short exercise in which the muscles are under maximum tension. Aerobic training (also often called cardio exercise) differs from anaerobic (strength) training in terms of the mechanism of energy metabolism. Aerobic exercise refers to types of physical activity that last quite a long time and require, above all, intense air supply to the lungs and an increase in heart rate.
The results showed that 28 days of cranberry extract consumption increased the athletes’ speed in long-distance running. It also turned out that taking the supplement leads to better absorption of oxygen by the muscles and a more efficient removal of lactic acid, which is formed as a result of the breakdown of glucose in the tissues during physical activity. This product of cellular metabolism is the “culprit” of post-exercise aches and pains.
Researchers suggested that this positive effect was due to the large amount of polyphenols found in cranberries; These are plant compounds that can protect body cells from the harmful effects of free radicals (chemical particles) formed during intense physical activity.
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