I'll make this quick

As my father ages, it becomes increasingly difficult for him to keep up with my children's regular way of moving, best described as festinating. They fairly wind me, too, some days.

festinate
verb
To move swiftly.

Synonyms bolt, bucket, bustle, dart, dash, flash, fleet, flit, fly, haste, hasten, hurry, hustle, pelt, race, rocket, run, rush, sail, scoot, scour, shoot, speed, sprint, tear, trot, whirl, whisk, whiz, wing, zip, zoom. Informal hotfoot, rip. Slang barrel, highball. Chiefly British nip.

Side note: Googling images for "tired mom" nets you about a kablillion pics of moms just after delivery, with baby nuzzled up. Very sweet. However...

Unfortunately, some photographers don't believe in cropping before uploading, even when the action "there" is done. Whole lotta "Look at tired Mom AND HERE IS HER ENORMOUS CROTCH IN THE FOREGROUND!" going on.