I have finally finally managed to incorporate regular exercise in my life. I walk fast on a treadmill while watching movies (thank you thank you inventors of Netflix!) almost every morning before the rest of my family wakes up and twice a week I work out with free weights.
Perhaps not surprisingly, I have lost weight and found more energy. I sprint up the stairs and run to the mailbox.
In fact, I find myself running whenever the circumstances allow, but only in short bursts. It has occurred to me that if I ran on the treadmill instead of walked, I would burn more calories and increase my fitness faster, but I worry about my joints. My knees and hips already ache and creak occasionally. Will running worsen that?
Are there benefits to running over walking that outweigh the impact of running on joints? Am I overestimating the effect of running on joints? Or am I wise to stick with walking? Should I cut out even the exuberant sprint to the car?
