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I was a ultra walkerwho has crossed the usa and covered many km in Austraila covering thousands of km at a time.
At 67 I want to become a mature age ultra runner ti highlite the damage drugs are doing to families like my own.
My question is I seem to find it hard to keep my heart rate down and in so doing difficult to run for extended periods.With that in mind will i achieve similar results in weight loss and fitness by running 1 minute and walking 1 minute.