Effect of orbicularis oris muscle training on muscle strength and lip closure function in patients with stroke and swallowing disorder.
Hee-Su Park, Jae-Young Park, Young-Hwa Kwon and 2 others
PMID 30464363WHAT IT FOUND
In 10 stroke patients, orbicularis oris training added to traditional rehabilitation (sensory stimulation and muscle strengthening) was associated with increased lip strength and better lip closure.
Because both were given, the training's separate effect cannot be known.
Key findings
01Orbicularis oris muscle strength increased from 20.5 ± 5.15 to 25.3 ± 4.2 kilopascal after the intervention, a change reported as statistically significant.
02Lip closure scores improved from 2.6 ± 1.5 to 1.2 ± 1.0 on the videofluoroscopic swallow study lip closure item, a change reported as statistically significant.
03All participants received traditional rehabilitation therapy, including sensory stimulation and muscle strengthening, in addition to orbicularis oris resistance training, so the separate contribution of the training cannot be isolated.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Only 10 patients were included, and the authors state the small sample may have affected the results. No control group or random allocation was used, so change cannot be compared with usual rehabilitation alone. All patients also received traditional rehabilitation therapy, including sensory stimulation and muscle strengthening, so the separate contribution of orbicularis oris training cannot be determined. No follow-up after the intervention was reported, so durability of effects is unknown. The reported training dose is confusingly worded as 30 times per week for 5 times a week for 4 weeks, making the actual dose unclear.
Declared interests
No conflicts of interest were declared.
The easy way to misread this
Do not conclude that orbicularis oris training alone improved strength or lip closure. All participants also received traditional rehabilitation therapy, including sensory stimulation and muscle strengthening, and there was no control group, so the separate effect of the training cannot be isolated.