Spinal control.
Felt. Seen. Heard.
Roll through SEG-B one section at a time. Feel the keys under your back, hear them click, and watch the blue line trace the order you moved.
From the people who use it
The SEG-B from Backsync has become a staple in our morning prep … It's lightweight, intuitive, and easy enough to integrate into a daily routine … players aren't skipping it because it's cumbersome, they're doing it because it fits.
The SEG-B enables us to enhance our performance program with a tailored core and spinal loading program developed for each athlete which longer-term aims to reduce lumbar stress injuries that are common in our sport.
Meet SEG-B
A Control Challenge for Your Spine
Rolling your spine up and down one section at a time is harder than it sounds. It takes fine control. SEG-B makes that control visible: the keys click as your back presses them, and the blue line shows which keys are down, which are up, and the order they move in — so you can feel the keys, hear the clicks and watch the blue line.
The Science
The science behind SEG-B
SEG-B is a training and biofeedback tool, built on well-established principles of how the body moves, senses itself, and adapts to training. These are the main fronts of research behind it — they support the general principles, and are not claims that SEG-B treats any condition.
Control is a skill you can practise
Movements you can't easily see or feel are hard to practise. Research on other kinds of real-time feedback, such as ultrasound imaging, has found it can help people learn specific movement tasks. SEG-B gives you feedback you can feel, hear and see while you move. SEG-B itself has not yet been studied.
What the board shows you
Each of the 14 keys moves on its own. The blue line along the keys shows which are down, which are up, and the order they go down and come back up.
Awareness of how your back moves
Research on body awareness looks at how well people sense the position of their back. SEG-B is designed for practising awareness of how your back moves on the board, section by section.
Controlled practice, with or without load
Research on resistance training links training under load with adaptation. SEG-B is designed for slow, controlled practice one section at a time, from bodyweight movements to loaded variations.
The Through-Line
SEG-B turns spinal control into something you can feel, hear and see — so every rep is practice at moving your spine with precision.
The Backsync app · free for iPhone and iPad
Assess. Measure. Practise. Play. Manage.
Choose an exercise and see the order your SEG-B keys move.
Assess · still from the app release video
Measure · still from the app release video
Practise · still from the app release video
Play · still from the app release video
Manage · still from the app release video · example data
Launching on the App Store soon.
Free. For iPhone and iPad (iOS or iPadOS 18.2 or later), with a SEG-B board. Prototype performance feedback for movement training; not medical advice, diagnosis or treatment.
Take a Closer Look at the SEG-B®
Setting Up SEG-B
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Glute Bridge
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Sit-Ups
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Reverse Hyper
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Segmental Extension
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Advanced Sit-up
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Weighted Glute Bridge
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Your Purchase Protection
Free shipping to the US and Canada, 30-day returns, and a 12-month warranty.
12-month warranty
Covers manufacturing defects in materials and workmanship for 12 months from delivery.
30-day returns
Changed your mind? Return it unused and in its original packaging within 30 days of delivery for a full refund. You cover return postage.