"John HUDSON" wrote in message
On Tue, 14 Dec 2004 03:44:15 GMT, "David Cohen"
"John M. Williams" wrote
The benefit of the Bioflex is that you hang by your upper legs - you can
get max traction and it basically only hits your spine - plus you can
exercise in a safe way with legs bent - for doing ab crunches and back
extensions which the other machines don;t allow.
Inverted crunches are completely safe. You are confusion the anatomy of
supine sit-ups with straight legs with free-hanging inversion.
Without exercise you are
generally wasting your time doing inversion therapy.
Everyone with lumbar-sacral or sacro-iliac compressions would disagree
A very inventive signature given the subject matter!! ;o)
You shouldn't encourage him!