Comparisons, buyer's guides & honest product answers
Strap Colours and Resistance: Why Every Colour Feels the Same
3-minute read · Published May 14, 2026 · Updated May 14, 2026
What the colours change
ShoulderBack Pro is a 160 gram, pocket-size movement trainer. It has two handles joined by a strap. The strap does not stretch, snap or drop, and there are four colours to choose from.
Colour changes how the trainer looks. It does not change how it works. The resistance comes from your two arms. One arm assists while the other resists, and you decide how hard to push.
Many people enjoy a tool they like looking at. If a colour makes you more likely to reach for the trainer each day, that is a fair reason to choose it.
What the research says
There is no research on strap colours, so this is a product question, not a research one. What does matter is how hard you choose to resist with the other arm, and you control that no matter which colour you pick.
What you can do
- Pick the colour you like best. It will not change your workout.
- Sit in an armchair, hold the two handles, and start with easy, pain-free movement.
- Keep your effort low for the first week. Add a little more only when your shoulders feel fine the next morning.
- Use the 16 free video lessons to choose your movements. Let the lessons guide the work, not the colour.
- If you prefer to stand, repeat the same movements standing once the seated version feels comfortable.
- Stop and rest if you feel sharp pain, numbness or tingling.
Where ShoulderBack Pro fits — and where it doesn't
It works seated or standing, and the strap is the same whichever colour you choose. A single trainer is $29; the 4-pack is $87 with free shipping, and a 30-day guarantee covers a refund if it isn't right for you.
SeeSaw is a good first lesson, because one arm guides the other in gentle reaches, and Bear Hugs Me is a slower one for when you want a deeper breath. You can order online and start with the lessons on the routines page.
It is a wellness tool with no clinical trials behind it, so it is not a treatment for any condition.
When to see a professional
See a doctor or physiotherapist promptly if you have: pain after a fall or injury with sudden weakness or loss of movement; a shoulder that looks deformed, very swollen or bruised; fever or feeling unwell alongside the pain; chest pain or breathlessness (call emergency services); constant pain that doesn't change with rest or activity; pain that wakes you most nights; numbness, tingling or weakness into the arm or hand; pain in several joints at once; or pain that hasn't improved after a couple of weeks of sensible self-care. [R30]
Only a doctor, physiotherapist or other licensed clinician can diagnose the cause of shoulder pain.
Try this movement
All 16 video lessons →Frequently asked questions
Do the colours feel different when I use them?
No. The strap has the same fixed length and the same resistance in every colour. Any difference you feel comes from your own effort, not from the colour.
Is the 4-pack worth it?
The 4-pack is $87 with free shipping, compared with $29 for a single trainer. It suits people who want a spare for another room or a family member.
What if I don't like it?
The 30-day Living Room Guarantee offers a full refund.
Sources
- NHS Greater Glasgow & Clyde, Shoulder red flags; NHS MPFT self-help, Shoulder pain; BESS/BOA pathway summary (2021). https://www.nhsggc.scot/page_category/services/page/33
