Science explainers & myth-busting
The Science of Warm-Ups: Temperature, Nerves and Tendons
4-minute read · Published October 19, 2026 · Updated October 19, 2026
What a warm-up is for
A warm-up is a short period of easy movement before harder work. It lets you move through your normal range before you ask more of it.
The popular story is that warm-ups raise body temperature so that tendons become "ready." We found no research testing that mechanism directly, so treat it as an idea, not a fact. This article is part of our myth-busting guide.
What the research says
Rehabilitation research describes a rough order. Range of motion comes first, then strength, then control and coordination [R16]. An easy warm-up sits at the start of that order.
A 2025 review of specific exercise types found that mobilization and stretching improved function and pain over about two months for rotator-cuff-related shoulder pain. Scapular stabilization exercise improved pain and function as well [R03].
What you can do
- Start seated and slow. Sit tall in an armchair with your feet flat. Let your arms hang and breathe.
- Move the shoulder blades first. Reach and glide slowly with both arms, one guiding the other.
- Add range gradually. Go a little further each time, never past a gentle stretch.
- Warm up both sides. Repeat on each side, even if one feels tighter.
- Stop if it's sharp. Sharp, pinching or electric pain means stop and rest. If it lingers, check with a clinician.
Where ShoulderBack Pro fits, and where it doesn't
For a warm-up, SeeSaw is the natural pick. One arm guides the other in alternating reaches, designed to wake up the shoulder blade stabilizers without a heavy load, and your other arm sets how much resistance there is. Windshield Wipers, slow side-to-side arcs for the rotator cuff, make a good second step. The research on two arms working together comes mostly from stroke rehabilitation [R14], so treat it as a reason to try, not proof.
It is a wellness tool with no clinical trials. The SeeSaw lesson is free, and the trainer is $29 CAD with a 30-day guarantee if you want to try it.
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.
Try this movement
SeeSaw (bilateral glide) →Frequently asked questions
Do I really need a warm-up before shoulder exercise?
Not always, but many people find a few easy minutes makes harder work more comfortable. Treat it as a useful habit, not a strict rule.
Is warm-up science proven?
Some parts are well studied and others are not. Research covers exercise order and types. We found none that tests the heat and tendon mechanisms.
Can SeeSaw replace a full routine?
No. It is a short, easy start. A fuller plan should build strength over time, which is what progressive, resisted exercise research supports [R01].
Sources
- Naunton J et al. (2020). Effectiveness of progressive and resisted and non-progressive or non-resisted exercise in rotator cuff related shoulder pain: systematic review and meta-analysis of RCTs. Clinical Rehabilitation. https://search.pedro.org.au/search-results/record-detail/61404
- Frontiers in Bioengineering & Biotechnology (2025). Specific modes of exercise to improve rotator cuff-related shoulder pain: systematic review and meta-analysis. PROSPERO CRD42024550602. https://pmc.ncbi.nlm.nih.gov/articles/PMC12011739/
- Journal of Physical Therapy Science (2016). The effects of bilateral movement training on upper limb function in chronic stroke patients. https://pmc.ncbi.nlm.nih.gov/articles/PMC5011582
- Mureşan et al. (2022). Effects of a novel proprioceptive rehabilitation device on shoulder joint position sense, pain and function. Medicina. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9505091/
