live better, longer
If you are trying to improve bone density, you have probably heard that you need “weight-bearing exercise.”
That advice is everywhere.
But here is the problem: weight-bearing exercise is too vague.
Walking is weight bearing. Standing up from a chair is weight bearing. Carrying groceries is weight bearing. Those things are good for general health, but they are usually not enough to build bone if you already have osteoporosis.
To stimulate bone growth, your skeleton needs a stronger signal.
That signal usually comes from one of three things:
Today, we are focusing on one of the simplest forms of impact training: heel drops.
Heel drops are free. They can be done almost anywhere. They do not require a gym. And when done correctly, they may generate enough force to stimulate bone.
But they also need to be done safely.
Let’s break down what heel drops are, what the research shows, how they compare to other impact exercises, and who should be cautious.
A heel drop is a simple movement where you rise up onto your toes, then allow your heels to drop firmly back to the floor.
That impact travels through the feet, ankles, legs, hips, and spine.
In theory, this impact gives your bones a signal to adapt.
And that is the point.
Bone responds to stress. This is often called Wolff’s Law. When bone is loaded in the right way, it can remodel and become stronger.
But not all heel drops are the same.
Some people barely lift their heels and land softly. Others rise high onto their toes and drop with more force. Some people bend their knees. Some keep their knees straighter. Some do them in shoes. Some do them barefoot on a hard floor.
All of those details change how much impact you create.
Resistance training is important. Muscle matters. Strength matters. Balance matters. Fall prevention matters.
But resistance training alone does not always build bone.
In many studies, resistance training slows bone loss but does not consistently increase bone density unless it is paired with impact or very high loading.
That is why impact matters.
Impact gives bone a different kind of signal than regular strength training.
Examples of impact include:
But not everyone with osteoporosis should jump, hop, or drop off boxes. That is where heel drops become interesting.
They may offer a lower-barrier way to introduce impact.
One of the key questions is whether heel drops generate enough force to matter.
In bone research, there is often discussion around “multiples of body weight.” In simple terms, this means how much force is moving through the skeleton compared to your body weight.
A common threshold discussed in the literature is around three times body weight. That does not mean three is magic, but it gives us a useful reference point.
One study placed participants on a force plate and measured what happened during heel drops. The participants were able to generate about 4.9 multiples of body weight.
That is significant.
It suggests heel drops can create enough mechanical force to provide a bone-building stimulus.
That does not prove they will reverse osteoporosis by themselves. But it does show that heel drops are not just a “soft” exercise. When performed with enough force, they can create a real impact signal.
Another study compared several types of impact movements, including:
The strongest performers were box drops and heel drops.
Box drops created higher acceleration, which makes sense. When you step off a box, gravity creates a larger falling force.
But box drops also come with more risk.
Heel drops are generally easier to control. You are not stepping off a box. You are not jumping into the air. You are simply lifting your heels and dropping them down.
That makes heel drops more accessible for many people.
The question is not just, “Which movement creates the most force?”
The better question is:
Which movement creates enough force and can be done safely and consistently?
For many people, heel drops may be a reasonable starting point.
The research is not perfect. Most of the studies are small. That is not surprising because no one is making a lot of money from heel drops.
But the studies we do have are useful.
One study looked at women doing a multi-component exercise program. The program included several activities, including heel drops.
Because heel drops were not the only intervention, we cannot say heel drops alone caused the result.
But the program did include impact, and the women improved.
The study showed improvements in several areas, including:
Femoral neck bone mineral density increased by about 2.8%.
That is meaningful.
Again, we cannot give all the credit to heel drops because the program had multiple parts. But impact was likely one of the more important bone-specific pieces.
Another study looked at heel drops more directly.
Participants performed 120 heel drops per day over a long period. The study showed that the group as a whole did not have dramatic changes, but people who participated more consistently had better results.
That matters.
It suggests there may be “responders” and “non-responders.” Some people may improve with heel drops. Others may not, especially if the rest of their program is missing.
Another study used 50 heel drops per day at home for 12 months.
The results were not dramatic, but the intervention appeared to help some women maintain bone density rather than continue losing it.
That may sound underwhelming, but maintenance can be a win.
If you are in a stage of life where you would otherwise be losing bone, stopping the loss is meaningful.
This is important.
Heel drops provide a signal.
But your body still needs the raw materials and hormonal environment to respond to that signal.
If you are doing heel drops but you are not eating enough protein, not getting enough minerals, not sleeping well, not addressing hormones, and not building muscle, your body may not have what it needs to build bone.
On the other hand, if you are doing everything else but you never load your bones, your body may not receive the signal to build.
You need both sides:
This is why osteoporosis programs fail when they are too narrow.
Supplements alone are not enough.
Walking alone is not enough.
Resistance training alone may not be enough.
Heel drops alone may not be enough.
But heel drops may be a useful tool inside a complete plan.
A basic heel drop looks like this:
The goal is not to slam recklessly into the ground. The goal is controlled impact.
Barefoot on a hard floor creates more impact. Shoes and softer surfaces reduce impact.
That means shoes may be a good place to start, especially if you are nervous, deconditioned, or unsure of your tolerance.
There is no perfect number for everyone.
Studies have used different approaches, including:
For many people, a reasonable approach is to start small and build.
This is not a prescription. It is a framework.
Your starting point matters.
Heel drops may be simple, but they are still impact.
You should be cautious if you have:
If you are unsure, work with a qualified physical therapist, trainer, or clinician who understands osteoporosis.
It may only take one session to learn safe technique, but that session can be very valuable.
Heel drops are actual impact.
Simulated impact uses tools that create a bone-loading signal without the same landing force.
Examples include:
These tools may be useful for people who cannot safely perform true impact.
But they are not the same thing.
If someone can safely do impact, heel drops may be a simple tool to include. If they cannot, simulated impact may be a better starting point.
The right choice depends on the person.
Heel drops are not magic.
But they are free, simple, and supported by enough evidence to consider using them as part of a bone health program.
When performed correctly, heel drops can generate meaningful force. Some studies suggest they may help maintain or improve bone density, especially when paired with a broader plan.
But heel drops should not be treated as the whole program.
To build bone, you still need:
Heel drops can be one useful piece.
They are not the entire puzzle.
If you are trying to figure out whether heel drops, resistance training, osteogenic loading, or vibration therapy belongs in your plan, start with the full framework.
That is what we cover in our free Bone Health Masterclass. We walk through the most common mistakes people make when trying to improve bone density and reduce fracture risk, and we help you understand which levers matter most.
Because osteoporosis is not the end. But deciding to reverse it is the beginning.
This content is for educational purposes only and is not medical advice. Heel drops and other impact exercises may not be appropriate for everyone with osteoporosis, especially those with severe bone loss, recent fractures, pain, balance problems, or high fracture risk. Speak with a qualified healthcare professional before starting impact training.
Your Blueprint for Lasting Bone Health and Longevity
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