New study reveals Montmorency tart cherry juice accelerated recovery after intense cycling
2014-12-15
(Press-News.org) LANSING, Mich. December 15, 2014 - Cyclists who are preparing for race day may have a new sports drink to give them an edge in recovery: tart cherry juice. A new study published in Applied Physiology, Nutrition, and Metabolism found that Montmorency tart cherry juice helped accelerate recovery, maintain muscle function and reduce certain markers of exercise-induced inflammation among a group of cyclists participating in a simulated road race.
The research team, led by Glyn Howatson and Phillip G. Bell at Northumbria University in the U.K., conducted this double-blind, placebo-controlled study to identify the effects of Montmorency tart cherry juice on recovery from a metabolically challenging exercise: prolonged, high-intensity cycling. The study involved 16 well-trained male cyclists who were divided into two groups: one group consumed Montmorency tart cherry juice and the other group drank a placebo that contained an equal amount of carbohydrates.
Research Methodology
The cyclists in the tart cherry juice group mixed 30 mL (or about 1 ounce) of Montmorency tart cherry juice concentrate with 10o mL of water and drank the juice twice a day (8 a.m. and 6 p.m.) for eight consecutive days. Each glass contained the equivalent of 90-110 Montmorency tart cherries, which are the most common varietal of tart cherries grown in the U.S. These dark, ruby red cherries have been frequently studied for their potential role in exercise recovery, including a similar study with cyclists previously conducted by Howatson and Bell that examined the positive impact of Montmorency tart cherry juice after a three-day simulated road race.
The fifth day of the study involved a 109-minute cycling trial designed to replicate a road race.
The two groups were monitored after the race by assessing the blood for specific markers of physiological stress that helps evaluate the body's ability to recover. The cyclists in the Montmorency tart cherry group maintained muscle function (as measured by maximum voluntary isometric contraction) and experienced a reduction in certain inflammatory responses following the simulated cycling race, compared to those consuming the placebo drink. The tart cherry juice also appeared to maintain exercise efficiency, reducing the amount of oxygen muscles need to do work. The VO-2 (maximal oxygen consumption) values were 4% lower at 24 hours compared to the placebo group.
To help assess dietary compliance, participants kept food diaries and were required to adhere to a low-polyphenolic diet that eliminated fruits, vegetables, tea, coffee, alcohol, chocolate and whole grains for the duration of the study.
The authors conclude that this new study adds to the growing body of evidence providing support for the use of Montmorency tart cherry juice in exercise recovery. Given the existing research - among cyclists and marathon runners - they suggest future work should explore the potential benefits from strenuous exercises that are both metabolically and mechanically challenging, such as football, hockey and court sports.
Montmorency tart cherries are available year-round in dried, frozen and juice forms - including juice concentrate, which was the form used in the U.K. study. Montmorency tart cherry juice concentrate can be mixed with water or other juices. It can also be consumed straight from the bottle or used as an ingredient in recipes, including smoothies and other beverages.
INFORMATION:
The Cherry Marketing Institute, a not-for-profit organization, provided financial support for the analysis of inflammatory indices. All other elements of the study were funded by Northumbria University, and the University of Ulster, U.K. The funders had no role in the study design, data collection and analysis, decision to publish or preparation of the manuscript.
For more information on the growing body of research on Montmorency tart cherries, visit http://www.choosecherries.com.
About the Cherry Marketing Institute
The Cherry Marketing Institute is a not-for-profit organization funded by North American tart cherry growers and processors. CMI's mission is to increase the demand for tart cherries through promotion, market expansion, product development and research. For more information - including research, recipes, serving ideas and product forms - visit http://www.choosecherries.com.
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[Press-News.org] New study reveals Montmorency tart cherry juice accelerated recovery after intense cycling
