“The price isn’t cheap but the value is huge.”

A strong new review of the kBox 3 was posted by coach Drew Cooper on the highly regarded FreelapUSA blog yesterday. Exxentric co-founder, M.D. Fredrik Correa read it with interest.

kBox 3People are purchasing the kBox 3 at an increasing rate all over the world, which is fun and stimulating. But being more a of creative idea-guy myself – a coach at heart and maybe not a businessman foremost – the greatest recognition for me is to get feedback from our users. End-users like gym-goers, patients or athletes, or coaches, performance directors, therapists or doctors, all have their personal opinion and experience with the kBox. We always want to take part of this experience to further improve our product and concept.

Drew CooperOn this theme it was with great pleasure I read a review of the kBox3 yesterday, published on the FreelapUSA blog and written by Drew Cooper (CSCS, BS Kinesiology). Drew has been active in posting training videos from his sessions with different clients he works with in his three-car garage gym. Reading the review, I can really feel how the kBox suits Drews needs and how it improves the training for his customers. Like no other equipment the kBox offers heavy leg training and overload training in a safe, less technique dependent and more ergonomic way. All this packaged in a light product with a small footprint. I’ve have written about this before but in Drew’s story about the kBox it becomes so clear:

“It offers a unique way of training certain qualities such as high force with high-velocity eccentrics, larger times under tension with these specific muscle contraction regimes, improved speed of hypertrophy gains, and orthopedic safety—all with one piece of equipment with a small footprint.”

In terms of training physiology I like that Drew is talking about the fast eccentrics. Look up eccentric training on google and 9 out of 10 posts show really slow submaximal or assisted maximal reps, so far from performance you can come when in reality the eccentric work is often a fast deceleration in the stretch-shortening-cycle primarily like landing after a jump, change of direction and so on. If you look at the force-velocity curve and realise that the eccentric force produced is even higher at higher velocities you can understand that this is the way to work to really engage your neuromuscular system for improvement.

To sum up I wanted to highlight the essence of Drew post with a final quote:

“..the price isn’t cheap but the value is huge”.

We have never intended to do cheap stuff but our definite goal is to bring huge value to all our customers and users.

If you have other things to say to us, feel free to send your feedback to us via twitter or email. All feedback is helping us. Positive feedback keeps us going but the negative stuff makes us go in the right direction. Thanks in advance!

Go ahead and read Drew’s full review on FreelapUSA.com.

Happy DOMS,

/Fredrik Correa, M.D., co-founder



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