I’d prefer the cool pack just for the ease of use, and the lack of water from melting. I do not know if one is more effective. I believe that the temperature is main effective cause here, and not the moisture from ice. I’d be that a cool pack from the fridge would be sufficient, but I will have to try it.
Also, science supports the use of therapeutic heat before, and during stretching, then applying a cool sustance at the end of the session, while still under tensile forces.
Anyway, here is another great link that covers plastic deformation, and the application of heat while stretching.
I was going to write a thread soley for this link, but this thread, and the stickied one at the top of this forum, “More proof that long periods of hanging may be beneficial” are good enough threads to post this new link under.
Fellas, don’t skip reading this! Oh, it is not overly scientific like some information. It is written by a doctor to potential patients, not from one scientist to another.
In fact, here’s a sizable quote from that link.
The main goal in the clinical treatment of adhesions, contractures, scar tissue or other connective tissue problems is the production of permanent collagenous tissue elongation. Numerous studies have concluded that the most effective means of attaining this result is through the combination of temperature elevation and the application of prolonged stretch thus altering the viscoelastic properties of connective tissue. 5,9,16 Collagen has viscous properties which allow a residual elongation after a load is applied then released. This phenomenon is known as plastic deformation. Furthermore, its elastic properties allow for recoverable deformation which is a return to its original length after stretch is applied then released. As mentioned above, elevated temperatures increase the extensibility of collagen. Therefore, when a load is applied to heated tissue then released, greater plastic deformation results (increased residual length) and thus permanent elongation of the connective tissue.9