So my doctor says to slow down my walking. This is to lessen the pain in my legs and ankles. I absolutely hate to admit it but she was right. I'd rather think I can take 45 minutes of power walking and that I'm a total exercise bad ass. Instead I've had to slow it down and mosey along. Strangely it works my butt and thigh muscles rather well. So not a total loss. But it makes me feel old.