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Review of Jumpsoles and Strength Shoes – Do they really work?

Jumpsoles are one of the icons of the vertical jump training world. They have been around since the ’90s and claim to increase your vertical jump by 5-10 inches by adding fast-twitch muscle fibers in the lower leg.

In this review, you are going to find out if Jumpsoles actually work and whether there are better alternatives out there.

What are Jumpsoles?

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Jumpsoles are basically a simple rubber platform you attach to your own shoes. They make it impossible to touch the ground with the heels thereby increasing the workload of the calf muscles.

Jumpsoles come with a plyometric vertical jump training program delivered on DVD or VHS (yes, they are that old). The exercises of this program are intended to focus your body weight onto your calves and train you to spring off the balls of your feet like a powerful cat.

A similar alternative: Strength Shoes

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The difference between strength shoes and jumpsoles is simple. While jumpsoles attach a rubber platform to your own shoes, strength shoes already come with a pre-attached platform you can't remove.

The training philosophy behind the strength shoes is identical to the philosophy of the Jumpsoles. As you are forced to do your exercises on the tip of your feet, your calf muscles get a heavy workout theoretically increasing your vertical jump.

In this post, everything related to Jumpsoles is also true for strength shoes.

How do Jumpsoles work?

Jumpsoles come with an 8-week training program of specific plyometric exercises. You perform these workouts twice a week with the rubber platforms attached to the front of your shoes. You can check out the complete training program here.

Exercises range widely: 1-foot jumps like skipping, fast two-footed jumps (like lateral cone hops), and slower, two-footed jumps (like box jumps).

These exercises are similar to the exercises in many other vertical jump programs and are proven to increase your vertical jump even without the addition of Jumpsoles.

At first, you will feel a bit awkward when training with Jumpsoles attached to your shoes. They are quite heavy and uncomfortable and the additional weight is very distracting especially for one-foot jumps.

So, should I use Jumpsoles?

The difference between doing the prescribed exercises with or without Jumpsoles is the increased intensity for the calf muscles. But, does that even make sense?

I think there are two reasons why this is NOT the most effective way of training your vertical jump:

1. Calves play only a small part in jumping

Vertical Jump height is determined by the fast extension of 3 different joints: ankles, knees, and hips. This so-called triple extension is a motion pattern involving a lot of different muscle groups like the feet, calves, upper legs, glutes, lower back, and even shoulders and arms.

The calves are only estimated to contribute between 10%-20% to the vertical jump height. Other muscles (like the quadriceps) are much more important and contribute up to 50% or more to jumping ability. This varies depending on your jumping style (one-foot jumpers depend more on the calves, two-foot jumpers less), but it shows focusing on the calves might not be the best idea.

You can also do a little experiment for verification. Try to jump with your knees and hips fully extended and only using your calf muscles. You have to have pretty strong calves to get off the ground.​

2. Jumpsoles might ruin your jumping technique

If you want to improve any athletic ability, you want to do exercises that closely resemble the actual movement for which you are practicing. By only jumping from your toes, your body might actually “forget” how to jump using your heels as well.

By training with jumpsoles, you will become very good at this very specific type of jumping, but you still have to translate your new skill back to regular vertical jumping.

3. Jumpsoles can be dangerous for your ankles.

The elevated position of your feet during Jumpsole training (or strength shoes) leaves your ankles exposed to lateral ankle sprains. You have to be very careful when doing the exercises so you don’t trip or slip and hurt your lower feet.

For an additional $30, Jumpsoles come with so-called Proprioceptors. These are little plastic plugs you attach to the bottom of the Jumpsoles and further increase the instability of your feet. By training with Proprioceptors, you are supposed to strengthen your ankles reducing future ankle injuries and improving efficiency during take-off.

While I believe you can benefit in the long term from this training, you also have to be very careful during the training to avoid injury.

Do Jumpsoles work?

No, not really. While training with Jumpsoles will probably increase your vertical jump, I wouldn’t necessarily attribute this to the Jumpsoles themselves. You would probably see similar results simply by following the simple plyometric training program that comes with them (but without actually wearing Jumpsoles).

There are also more recent and cheaper vertical jump training programs that will do a better job at increasing your vertical jump without the added risk of an ankle injury.

Better Alternatives:

Today, unlike in the 90s, there are proven vertical jump programs based on hard science, years of undeniable proof, and sound training principles that don't rely on gimmicky rubber platforms or strength shoes.

Vert Shock

Promises 9-15 inches improvement during the 8-week program
Advanced plyometric exercises that don't require a gym or weightlifting experience
I did it myself and was able to do powerful two-handed dunks after 8 weeks (at 6'0"). You can see a time-lapse video of my progress here

Download Vert Shock

Jump Manual

Promises at least 10 inches improvement during the 12-week program
Developed in 2008 and uses a combination of plyometric exercises and weightlifting
Find out more about the program here

Download the Jump Manual


Jumpsoles and strength shoes are from another era of vertical jump training. There is a good reason you see them less and less in the gym. While they do work somewhat, there are far better options available these days.

I wouldn't want to waste my time and money on gimmicky equipment that has little added benefit but significant injury potential.

2 thoughts on “Review of Jumpsoles and Strength Shoes – Do they really work?”

  1. John McEachen

    Exactly. You can stand on the balls of your feet without the jumpsoles and do the same exercises. If your subconscious mind knows you don’t have a heel to stand on, your center of gravity will have to move forward so your weight is over the balls of your feet. You don’t need the strength shoe to do that.

  2. Mary

    Thank you, very useful article.

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