Dear Dr Gardner:

I enjoyed reading your article about walking for exercise. I enjoy walking but only walk for exercise once per week. I also go cycling twice per week and swim once per week. My plan is to increase my walking for exercise with the goal of doing it daily, preferably in the early morning before the sun comes up. It is great for fresh air and creates a feeling of well-being.

I really enjoy power walking but, sometimes, I get carried away because I love to move very fast to get my heart pounding, but later on my knees usually hurt. I damaged them while jogging on the pavement without proper running shoes about a year ago. Now, I have to take glucosamine and chondroitin daily for joint support. I can't walk slowly because if I do, it doesn't feel like I am getting any benefit from it.

Joan Blagrove

Scarborough, Ontario

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