cougie wrote (see)
Well it won't directly enhance your running - but if you're doing it on a rest day and it doesn't interfere with your running - then why not.
Hmm, would a strong core not enhance running Cougie?
Go for it. A strong core is really important in marathon training. While it's not going to help with running the distance or make you go any faster a strong core will help you avoid a whole load of injuries.
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