Effect of the push-up plus guide and resistance device (PPGRD) on the serratus anterior during push-up plus.
Won-Gyu Yoo
PMID 27942157WHAT IT FOUND
In a person with scapular dyskinesis, adding a tubing device to push-up plus was followed by higher serratus anterior power, lower pain, and no dyskinesis.
This is a single case, not proof the device works.
Key findings
01After 2 weeks of push-up plus without the device, serratus anterior power increased from 9.0 kg to 11.5 kg, and pain decreased from 5/10 to 3/10.
02After 2 weeks of push-up plus with the device, power was 15.5 kg, pain was 1/10, and scapular dyskinesis was absent.
03The participant performed push-up plus without and then with the device, each for 2 weeks, so the study does not isolate the device's effect.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
This is a report of one person, so it cannot show what will happen in other patients. The participant did push-up plus without the device first, then with the device, so improvement cannot be separated from continued exercise, practice, or time. There was no comparison group, no random assignment, and no blinding. The report gives only 2 weeks of follow-up for each phase and no longer-term outcomes.
The easy way to misread this
Do not conclude that the PPGRD caused the improvement. The participant also performed push-up plus without the device for 2 weeks, and this is a single case report, so it cannot separate the device's effect from continued exercise or natural change.