Can Vigorous Activity Lead to an Increased Risk of Saline Implant Rupture?

Activity can't rupture a breast implant. In fact, if you were left in the exam room alone with a sample breast implant you wouldn't be physically capable of rupturing it since they are made so incredibly resistant. If you puncture it with a needle, of course it will leak but otherwise you have nothing to really worry about it this regard.
Best Wishes,
DoctorMeade

Vigorous activity is unlikely to rupture implants.  This is a common concern, though.  The most frequent cause of rupture is fold fatigue.  If you have an implant that is chronically folded on a corner or ripple, the material is weakened until rupture.  Capsular contracture contributes to this.  There is little need to modify your daily activities following breast augmentation.

Breast implants are manufactured medical devices and have an intrinsic rupture capacity.  Vigorous exercise will not place them at higher risk of rupture, but blunt trauma and the presence of capsular contracture may increase the risk. 

Both saline and silicone implant are made of very strong materials.  The outer shells are generally very resistant to rupture.  Rarely, there can be a manufacturing defect that leads to an early rupture.  Usually, a rupture occurs when the shell of the implant weakens over time.  This weakening occurs as folds in the implant shell develop.  These folds weaken the shell by affecting the structure of the shell and causing a loss of strength of the material.  Rarely, is a vigorous activity solely responsible for an implant rupture.  It may contribute to a rupture in an older implant that has developed a weakened shell over time.

Prosthetic Breast Implants are soft and feel natural because they are made of pliable materials (silicone shells) filled with isotonic saline solution (salt water). These shells are similar to paperclips, in that, over time, the folds produced by their inherent "naturalness" bend back and forth and will eventual crack and break....breaking the shell allows the saline/salt water to leak into the surrounding tissues and deflates. 

It not typical for "vigorous" activity, such as you spoke of, to cause a rupture, but reports do exist of occurrences such as this and even as seemingly innocent as routine mammograms (operator dependent!). My sense is that the longer your saline implants have been in your body, bending back and forth at the folds like a paperclip, the higher likelihood that they may rupture and the small the magnitude of  the "event" maybe.

Saline implants don't rupture because of sex, but they may rupture during sex -- or with any other activity for that matter.  The main reason for rupture of silicon implants is because of fatigue of the shell caused by small folds that rub together thousands of times a day during normal activity.  Those areas eventually become weak and rupture.  They may rupture while you're sleeping, or skiing, or driving, or snorkeling etc etc

I don't know where you read the information in your question but it is untrue.  Implants fail because of a manufacturing flaw (almost never) or from fatigue (the implant has been in place for a long time).  Any incident that triggers failure would be doing so to an implant that was imminently to fail anyway.  Watch the video and see how much force can be placed on in implant.  They are very resistent to bursting.

The most common explanation for a saline breast implant rupture is attributed to "crease fold failure" from repeitive folding of an establihsed crease. This creates a weak point. Tis would be similar to repetiively bending a soda pop can. It is rare that any one hit, blow, or squeeze would cause this rupture.

Thanks for the question -
Implants are designed to withstand physical stress. This includes most standard activity. Things that predispose implants to rupture include manufacturing flaws, underfilling an implant and handling during placement (for example iodine solution has been shown to weaken the shell).
There isn't a clear correlation between physical activity and implant rupture however I have had patients come to me with ruptured implants after mammogram or car accidents.
I hope this helps.

Breast augmentation does not cause any physical or activity limitations. Implant corporations such as, Mentor, Allergan, Inamed, or Natrelle offer life-time warrantys on the implants. If in case of a malfunction, defect, or rupture, the corporation gives you a certain amount to cover most of the costs of the anesthesiologist and the surgery center fees. I definitely recommend consulting with a board certified plastic surgeon to discuss the best and safest possible options for you. However, unless the implant is actually punctured, there should not be any type of physical or excessive amount of pressure to cause the implant to rupture. Good luck and take care!