I recently purchased my favorite rehab and performance training equipment.  Aquabags are designed and sold by a company out of the Netherlands called Ultimate Instability.  I have seen these aquabags used by strength and conditioning coaches across all sports and I am not surprised.  Aquabags are designed to increase the intensity of any workout one hundred-fold.  The different handles allow the product to be used while running, doing plyometrics or traditional strength training.  The soft plastic feels very comfortable against the body but it is in stark contrast to the discomfort your muscles feel.  The weight of the water combined with the disturbances of the water sloshing around inside the aquabag, requires the athlete to have a high level of focus in order to execute the movements without losing balance and truly forces every stabilizer muscle to wake up.  I am excited to see how training with water gives my patients another training tool to transition from pain to performance.