Can “Thinking While Lifting” Speed Up Elbow Fracture Rehab?
What a New RCT Found
Elbow fractures are one of those injuries that can look “simple” on an X-ray and still feel stubborn in real life. Weeks after the cast or brace comes off, many people are surprised by how much strength they’ve lost and how quickly pain, stiffness, and hesitation show up when they try to load the arm again. Even when bone healing is on track, the rehab phase can be frustrating: you know you should strengthen, but every rep can feel guarded, effortful, or unnerving.
A 2025 randomized controlled trial in Archives of Physical Medicine and Rehabilitation explored a surprisingly practical idea: what if adding a gentle mental task during resistance training helps people do more quality work, and feel better doing it?
The idea: dual-task resistance training (strength + a simple brain task)
“Dual-task” training means performing a physical exercise while simultaneously doing a cognitive task. In this study, the cognitive task was simple and self-paced: participants did resistance exercises while subtracting 3s from 100 (100, 97, 94, 91…), without time pressure and without anyone correcting answers. The goal wasn’t to ace math, it was to occupy attention in a way that reduced the “spotlight” on discomfort and effort.
The researchers compared two groups of adults in elbow fracture rehabilitation (32 total). Everyone did a 12-week program (two sessions per week) using elbow flexion and extension resistance exercises, working to task failure at a light-to-moderate perceived intensity. The only difference was whether they added the self-regulated mental subtraction task during the strength work.
What they found: more strength gains, less pain beyond resistance training alone
After 12 weeks, both groups improved, this is important, because resistance training itself is already a key part of rebuilding the elbow after a fracture. But the dual-task group improved more in two areas patients care about most:
They gained more strength in elbow flexors and extensors, and they reduced pain more than the resistance-only group.
And here’s the detail that makes the study especially interesting for real-world rehab: the dual-task group also showed improvement in kinesiophobia (\fear of movement) while the resistance-only group didn’t show the same change.
Why would a mental task improve rehab outcomes?
In rehab, we often talk about “dosage” which is how much meaningful work you can accumulate over weeks. Strength and pain outcomes aren’t just about showing up; they’re often shaped by whether a person can approach the level of effort needed to stimulate change.
This study offers a simple explanation: dual-tasking may act as a distraction strategy that reduces the perceived intensity of effort or fatigue. If the exercise feels more tolerable, people can often do more repetitions at the same load and intensity, meaning a higher overall training volume over time. The trial reported that the dual-task group completed more repetitions at the same perceived intensity, which likely contributed to the stronger strength and pain outcomes.
There’s also a psychological layer: fear of movement is real after fractures. Even when the bone is healing well, the brain can remain protective, especially if the injury was traumatic, painful, or required surgery. In the study, lower kinesiophobia was associated with greater strength improvements in the dual-task group, suggesting that beliefs and fear can meaningfully influence how well someone progresses.
What didn’t change much (and why that still matters)
The study didn’t find major between-group differences for disability scores (DASH) or passive range of motion, both groups improved similarly.
That’s not a disappointment but it’s a useful clinical reminder. Strength and pain can sometimes improve faster than “function on paper,” especially when daily activity confidence, grip endurance, and more complex motions (like forearm rotation) take time. Also, ROM often responds to multiple inputs such as joint mobility work, soft tissue work, graded stretching, and time, not just strengthening.
How this could look in a clinic (or at home) without making it complicated
The best part of this research is how low-tech and realistic it is. You don’t need a fancy device or a complicated dual-task drill. The cognitive task should be:
simple
not stressful
self-paced
easy to stop if it becomes annoying or overwhelming
The study used subtracting 3s from 100, but the broader principle is “gentle cognitive engagement.” In real rehab, options might include calm counting patterns, naming categories, light word games, or simple recall, done without pressure.
Just as important: this isn’t meant to “trick” anyone into pushing through sharp pain. The purpose is to help people find a safe, productive level of loading that rebuilds strength and reduces pain sensitivity over time.
What this means for elbow fracture rehab
This RCT adds something valuable to the rehab conversation: how you structure a strength session can change the outcome, even when exercises and intensity are otherwise similar. Dual-task resistance training appears to be a practical way to increase training volume, reduce pain more meaningfully, and potentially address fear of movement, without adding risk or complexity.
If you or someone you care for is recovering from an elbow fracture, it’s worth discussing not only what strengthening to do, but also how to make the work more tolerable and repeatable, because consistency and confidence are often the real drivers of recovery.
Disclaimer: This blog post is for general information and does not replace medical advice. Rehab timing and loading should be individualized, especially after surgery or complex fractures.
Reference (APA)
Cruz-Montecinos, C., López-Bueno, L., Núñez-Cortés, R., López-Bueno, R., Suso-Martí, L., Mendez-Rebolledo, G., Morral, A., Andersen, L. L., & Calatayud, J. (2025). Dual-task resistance training improves strength and reduces pain more than resistance exercise alone in elbow fracture rehabilitation: A randomized controlled trial. Archives of Physical Medicine and Rehabilitation, 106, 1155–1162. https://doi.org/10.1016/j.apmr.2025.01.419