Do you know what a “Rebounder” is?

It sounds super-fancy, but essentially, it’s a mini-trampoline. “Rebounding” has become a popular exercise for its cardiovascular benefits and for the fact that it protects the joints from the fatigue and impact of exercising on hard surfaces (such as running). Rebounding is reported to be an effective tool for weight loss as well as detoxification of the body. It is said to improve digestion and elimination, and it promotes lymphatic flow (although, to be fair, anything that increases circulation will improve lymph flow!).

mini trampoline

I received the following question from a FemFusion friend in Canada:

Hi Brianne,

I have been wondering if using a Rebounder is good for pelvic floor strength. I have used one before I started re-habing my pelvic floor –– and loved it –– so much sweating and a “runners high” without the jarring of joints you get from running. But I found I was leaking (urine) more than I would in any other activity. I stopped, figuring it was damaging my pelvic floor. But now I am hearing that it is good for the pelvic floor (or maybe that is just hype from the companies that make Rebounders?)

Below is my response (updated July 2018):

I, myself, have a mini trampoline and I looooove it. Whenever I drag it out, I love the feeling I get after jumping for just 5-10 minutes. So invigorating!

Rebounding is a less “jarring” cardio option than running on pavement or other hard surfaces, so it’s easier on your joints and your pelvic floor. However, if you have problems with bladder leakage and/or prolapse, rebounding might aggravate/increase your symptoms if your pelvic floor muscles aren’t ready for the impact.

To protect against accidents, *gently* engage your pelvic floor/core muscles and HOLD while bouncing (if you’re only bouncing for a few minutes). Basically, you need to remind your pelvic floor how to activate or “turn on” during this activity. It takes time to improve body awareness and endurance of the core muscles, but it can be done!

As your pelvic floor (and entire core) gains strength and your body gets more accustomed to bouncing, you can try bouncing without a conscious sustained “kegel-like” contraction of your pelvic floor. Rather, focus primarily on your breathing. Breathe smoothly and easily, NEVER-EVER-EVER holding your breath.

The primary goal is to teach your muscles how to turn on and protect you WITHOUT having to “grip” the whole time. The other goal is to keep breathing!

Work up to longer bouncing sessions slowly. This is a gradual process; it takes time and patience! Don’t push yourself too far, too fast.

How to RELEASE your bladder fully so that you're not always tied to the bathroom! | FemFusion Fitness | "Help! My bladder doesn't empty completely!" #womenshealth

Let’s go through this in detail.

How to Rebound if you have bladder control issues*:

  1. Make sure your bladder is empty before starting.
  2. Step onto your rebounder/trampoline.
  3. Before you start bouncing, engage your pelvic floor muscles (do a gentle kegel). Note that I said GENTLE… This should not feel like a clench! “Squeeze and lift” your pelvic floor muscles using the same pressure that you would use to test a ripe avocado. Feel like you’re “scooping up” your pelvic organs (especially if you have mild pelvic organ prolapse) and supporting them from below. Try to keep your buttocks relaxed. VERY GENTLY draw in your lowest band of abdominals without tucking your tailbone under, or thrusting your ribs forward. Pretend like you’re zipping up a pair of high-waisted jeans. If your lower ribs pop forward, be sure to draw them in by “buttoning up” the top button of your (imaginary) jeans. I call this “zipping up the mom jeans way.”
  4. Hold this gentle contraction as you begin doing mini bounces on your trampoline. Don’t hold your breath. Breathe naturally, even though you’re holding a gentle activation of the pelvic floor muscles. Start with just a minute or two, and see how you do. 
  5. After about two minutes of successful bouncing (don’t push it too far!), step off the trampoline.
  6. When you’re safely off the trampoline and feeling steady, COMPLETELY RELAX your core and pelvic floor muscles. Let it all go. Shake it out!
  7. Check in with yourself: How did it go? If it felt good, then get back on the trampoline, this time WITHOUT an active/conscious contraction (i.e. without a sustained “kegel” contraction). Trust that your body will know what to do. Trust that your pelvic floor will be able to support you with its natural level of supple + responsive muscular control. Try bouncing for 1-2 minutes. Again, don’t hold your breath, and don’t push it too far.
  8. If you experienced leakage or a feeling of pressure this time, then you’re not (currently) able to bounce without actively/consciously engaging your pelvic floor. That’s fine, but it also means that you shouldn’t bounce for much LONGER than 2 minutes (at this time). Why? Because you don’t want to have to actively “kegel” throughout a long bounce session. Too much active holding (i.e. “kegeling” for too long of a period) can lead to clenching, gripping, and excessive pelvic floor tension. This can cause feelings of bladder urgency/frequency, it can cause pelvic pain and discomfort, and it can actually WORSEN your symptoms of pelvic organ prolapse and/or hinder recovery.

This is a process of self-inquiry and gradual introduction (or re-introduction) to the activity of rebounding. Using the steps outlined above, slowly work up to longer bouncing sessions as long as you’re staying dry and feeling comfortable. If you are NOT staying dry, consider this a signal from your body that something isn’t right. Consult a pelvic floor physical therapist for one-on-one evaluation and treatment.

*Note: This is not to be used as a substitute for medical advice. If you have moderate to severe pelvic organ prolapse, or significant bladder leakage, rebounding might not be a good option for you at this time. Everybody is different and not every exercise works for every person. To work up to Rebounding, focus on finding and maintaining ideal posture and alignment FIRST. Then work on strengthening all of the muscles of the core including the hips, gluteals, pelvic floor, abs, and back. Slowly incorporate Rebounding — in short bouts (1-2 minutes at a time) — as you gain core strength and control. For additional help that’s specific to your needs, contact a women’s health physical therapist in your area.

Dr. Bri, PT, DPT

“Good” or “bad” for the pelvic floor:

Rebounding is an effective workout for the entire body. I wouldn’t say that it’s particularly “good” — i.e. any better than other activities, such as walking — for your pelvic floor, but it’s certainly not “bad” as long as it’s not aggravating your condition!

If you’re having issues with bladder leakage or feel that it’s worsening your pelvic organ prolapse, STOP and contact a women’s health physical therapist. Individualized pelvic floor rehabilitation from a professional trained in this specialty is a better option than simply grabbing a box of incontinence protection and continuing an activity that might be making matters WORSE for you.


This leads me to a point that I want to make SUPER clear:

Rebounding is an example of a time when it is appropriate to “zip up” and actively engage the pelvic floor/core muscles; at least at first, as you’re re-training your inner core how to handle the demands of this activity.

However, you do NOT need to “zip up” all day long.

Conscious, active “zipping” is only required when you are:

  • Doing something strenuous such as lifting, bending, pushing, pulling (some examples: moving a box, lifting your dog, vacuuming…)
  • Doing focused core strengthening exercises or weight lifting/resistance training
  • Doing activities that require extra stability, balance, and control (such as standing on a ladder)
  • Doing things that might be jarring to the pelvic floor such as bouncing, running, etc.

At other times — during normal, non-rigorous activities of daily living — don’t worry about “zipping.” Simply use good posture and relax the core. Your core muscles are always firing — always “on,” albeit at a low level — throughout the day. If they weren’t “on,” you wouldn’t be able to stand up.  Zipping makes them “extra on,” and you do NOT want to overly tax your muscles by zipping up the core all day long.  Too much zipping can create excess muscle tension and ultimately pain and dysfunction. Click here to read about “Hulk Vagina” (which can be caused by excessive “zipping!”).

In summary:

Rebounding is great for the entire body — and is perfectly fine for the pelvic floor — as long as you’re able to maintain a gentle pelvic floor and core muscle contraction while you’re bouncing. This should never feel like a “clench,” and it might need to be re-trained as described in the steps above. Work up to it slowly.

If you feel that rebounding is aggravating your symptoms of bladder leakage or pelvic organ prolapse, contact your physical therapist.

Want some ideas for bouncing? Check out my mini-trampoline workout!

"Lift" Pelvic Organ Support Series

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~Dr. Bri, PT, DPT

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