Are elephant walks the greatest hamstring stretch you're not doing? I did them every day for a week to find out

Sam RIder performs an Elephant Walk stretch on a mat in his dining room. He is standing, bent forward, hands stretching for the floor, with one leg straight and one leg slightly bent.

Dozens of exercises have been credited as the best (there's even a move that gym-goers refer to as the World's Greatest Stretch).

So I was intrigued but skeptical when mobility expert John Lindsey shared a move he described as the greatest hamstring stretch of all time.