Bodybuilding, Weight Lifting

To get a positive response from achilles tendon training, you will need to have a high dosage of conditioning as stated above. Traditional 3 x week is not enough to get a the response you are looking for.

Tendons will need to be loaded sub maximally to get a conditioning response. The conditioning will assist in the tendon recover.

Eccentric training of teninopathies has recently been researched intensly recently, and from the point of view of achillies tendinosis (no such thing as a tendinitis)it has been proven to be the best first line of defence to reduce the acute and even chronic irritation.
Happily as you have got a tendinosis you are at a much lesser risk of rupturing - see light at the end of a tunnel!!
sub maximal eccentric basically means - a load that works the muscle into a stretch but not full load - any clearer?? the exercise consists of standing on a step lower down over the edge with the heel of your BAD leg, stretching the tendon BUT raise up on your good leg. Take no oad through the tendon on shortening. reps of 10 as often as you can literally 5-10 times a day. DO NOT OVERLOAD OR DO IT QUICKLY. hope that helps

To answer you
1) as it's both you can still do the exercise by standing on the step, placing the "good" foot on the step and then the other one hanging off the edge, so that the "good" leg is bent at the knee. Then lower down your bad heel and bend your "good" knee. By just straightening your bent "Good" knee you wont put extra pressure on the tendon. Then repeat on the other.
2)As for training I would consider giving yourself a short "break" of a week to a fortnight - I know thats not ideal but by working the achillies within a controlled enviroment and "resting" it the rest of the time you should be able after that to greadually return to the training. I would consider swimming as an alternative for those 2 weeks.
3)As for the injections personally I would advise that as a last ditch attempt - you have to have a bloomin good orthopaedic doctor to do that, and really I would not class you as chronic or debilitating enough to risk it, be positive it's a short lived annoyance if treated with respect if you go at things "Gung - ho" you can make it worse.
let me know how you go

I also suffer from Achilles Tendinites. My physiotherapist has advised to sleep in a 'splint', to keep the ankle in 90 degrees flexion. She says this helps for the tendon not to bo back to the shortened stage. What is your opinion in this regard?
I will also like some info with regards as how to prevent this injury. I'm a long distance runner, and tend to get this injury now 2x a year. Sometimes in the left leg and sometimes in the right. How should I train to prevent this. I don't really want to give up running.