"Paul Blay" <ranma@saotome.demon.co.uk> wrote in message 
news:cug120$5th$1$8300dec7@news.demon.co.uk...
> "John W." wrote ...
>> I've ridden horses a lot in my life, and you do get sore muscles, but I
>> wouldn't call it exercise.

The electric horse riding machine's been around for a while now. I saw one 
about two or three years ago in a local electrical store, near those massage 
chairs.

> At a rough approximation horse riding is about as much 'exercise' as 
> swiming (slow) or skating (inline).

There's nothing like a good slow swime.

> Obviously it's not running at 10mph
> but who wants to do that?

A person who wants to reach a destination ten miles away in one hour?