Effects of chin tuck exercise using neckline slimmer device on suprahyoid and sternocleidomastoid muscle activation in healthy adults.
Jong-Hoon Moon, Jin-Hwa Jung, Suk-Chan Hahm and 3 others
PMID 29581670WHAT IT FOUND
In 20 healthy adults, chin tuck with a neckline slimmer device produced greater suprahyoid activation and lower sternocleidomastoid activation than head lift.
It suggests a cheaper training option, but no swallowing outcomes were tested.
Key findings
01Chin tuck with the neckline slimmer produced significantly greater suprahyoid activation than head lift (mean 42.9 ± 31.2 mV vs 24.5 ± 14.6 mV; peak 115.9 ± 72.5 mV vs 63.1 ± 37.9 mV).
02Chin tuck with the neckline slimmer produced significantly lower sternocleidomastoid activation than head lift (mean 56.7 ± 31.8 mV vs 114.3 ± 46.6 mV; peak 128.8 ± 66.4 mV vs 292.7 ± 119.7 mV).
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
Only 20 healthy adults were studied, and the authors say patients with dysphagia need to be tested later. The outcome was short-term surface electromyography activation during a 10-second hold, not swallowing performance, safety, or long-term training benefit. The device is marketed for neck wrinkles, and the paper states there is a lack of evidence validating its use for chin tuck exercise.
Declared interests
The authors declared no conflict of interest.
The easy way to misread this
Do not conclude that the neckline slimmer improves swallowing or treats dysphagia. The study measured brief muscle activation in 20 healthy adults, not swallowing outcomes in patients.