120 sedentary/low active post-menopausal women ( 45-74years of age ) will be randomly assigned ( computer-generated ) to 1 of 3 groups : A ) 10,000 steps/day ( with no guidance on walking intensity/speed/cadence ; BASIC intervention , n = 50 ) ; B ) 10,000 steps/day and at least 30minutes in moderate intensity ( i.e. , a cadence of at least 100 steps/min ; ENHANCED intervention , n = 50 ) ; or a Control group ( n = 20 ) .