Yes, sports have been such a big part of her life that several of her children have been named over the sport which was in season when they were born.
Which is precisely what makes me think the running outfit might have been an insiders' joke--but it is not proof.
Cheers!
PS Apparently Dubya gave the Secret Service *fits* trying to keep up with him in terms of exercise: sit-ups, I've read, and trashing the editors of Mountain Bike Review when they tried to compete with him (22 mph on the road on a full-out mountain bike; and burning up 1600 calories in 2 hours on a bike. My college-age son, who runs sub-five-minute miles, can sustain 22 mph on a mountain bike on the road, but not too many others can).
My BIL is a retired SS agent who served Bush I, Clinton and Bush II.
They didn’t like running with Clinton because they really did want to exercise. He’d run for the cameras and then when out of site stop and chat or get a bite to eat.