Efficacy of tart cherry juice in reducing muscle

8/7/2019 Efficacy of tart cherry juice in reducing muscle

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Efficacy of tart cherry juice in reducing

muscle pain during running :a randomized controlled trial

MARNIAR

C209118041

Kuehl et al.

Journal of the International Society of Sports Nutrition 2010, 7:17


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INTRODUCTION

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Long distance

runningacute muscle damage

acute inflammation

decreased forceproduction

can last up to

1 week

post-exercise


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One proposed mechanism :

extensive myofibril disruption triggers a

local inflammatory response

MUSCLE DAMAGE

NSAIDsadverseeffects >>


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Tart cherries :

a good source of phenolic

compounds withhighlevels of

antioxidant and antiinflammatory

activity

cherry consumption before and

during strenuous exercise mayhave a protectiveeffect to reduce

muscle damage andpain


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Some studies :

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Consumption of approximately 45 cherries per

day has been shown to reduce circulating

concentrations of inflammatory markers in

health

y men and wom

en (Connolly DA et.al., 2006 ;Jacob RA et.al., 2003)

it is possible that the anti-inflammatory and/or

the antioxidant effects of cherry juice may

mediate this secondary response and avoid theproliferation of myofibrillar disruption

(Connolly DA et.al., 2003)


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METHODS

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EXCLUSION

CRITERIA :

recent use of other

pain management

methods

ARANDOMIZED, PLACEBO-CONTROLLED,DOUBLE- BLINDTRIAL

ICLUSIONCRITERIA :

an ability and

willingness to abstain

from anti-inflammatory

or pain-relieving drugs

willingness to refrain

from seeking any othertreatment for symptoms

of muscle damageuntil

the completion of the

study


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RESULT

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runners in both groups reported more pain

upon completion of the race

participants who drank the tart cherry juice

twice daily for one week prior to and the

day of the race reported a significantlysmaller increase in pain after the race

In this study

tart cherry juice provideda protective benefit against

the acute muscle pain

caused by distance running


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pain associated with acute muscle injury is most

likely due to oxidative tissue damage whichleads

to an inflammatory response, causing furtherproduction of free radicals and augmenting

secondary muscle soreness

nutritional antioxidants have been proposed as a

means of mitigating muscle soreness and strength

loss caused by damaging exercise

tart cherries contain flavinoids and

anthocyanins, withhigh antioxidant

and anti-inflammatory properties


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Limitations of this study

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the subjective of assessment of pain by

participants

the possibility of cross contamination of the

intervention and placebo drinks, as participantsmay have potentially switched drinks to compare

flavor and effects


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CONCLUSIONS

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tart cherries havehighlevels of antioxidant and

anti-inflammatory compounds, and are promoted in

lay publications as beneficial for those witharthritis, muscle pain, and fibromyalgia

the present study suggests that the administration

of tart cherry juice foreight days reducedsymptoms ofexercise-induced muscle pain among

runners participating in a vigorous endurance

event

further research is needed to examine serum

biomarkers and the potentialexplanation for the

reduction in pain and inflammation associated with

tart che

rry consu

mption


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terima kasih


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VAS pain scale


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VAS pain scale

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Efficacy of tart cherry juice in reducing muscle