Stuart McMillan's 78-year-old father incorporates skipping into his running routine twice a week, alternating 30-second intervals of walking, skipping, and sprinting.

“my dad — was an elite athlete when he was younger and has probably averaged four days a week running for almost his entire life good for him yeah he's 78 in 2019 he ran the New York City marathon ran 502 so he's at at 74 or 73 years old and he doesn't do that anymore but he still runs 4 days a week and he runs about 20 to 25 miles and two of those days are skipping sessions where he walks 30 seconds he skips for 30 seconds and then he strides as fast as he can as fast as his capacity will allow for 30 seconds and then he walks then he skips and then he strides and he walks and it's it's it's so key it really is”