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. 2022 Dec 22;20(1):170. doi: 10.3390/ijerph20010170

Table 2.

Protocol and Procedure for Swallowing Assessment or Detection.

Author (Year) Subject Class Procedure Protocol
Afkari [30] 1 sw vs. nsw sw: drink 100 mL of water as fast as possible
nsw: dry (saliva) swallowing
Four 30-min sessions performing 3 dry & one swallow
Amft and Troster [31] 4M/2F sw vs. nsw Participants were allowed to move, chew, & speak normally during the recording. The participants were asked to drink 5 mL & 15 mL of water, eat a spoonful of yogurt, & 2 cm3 of bread in one piece 2 intake sessions on different days
Bi et al. [32] 5F/7M Solid vs. liquid; food type Apple, carrot, chip, cookie, peanut, walnut, water Food was excluded if participants disliked it.
Total 560 events
Fontana et al. [33] 7 food type Start with 5 min quiet sitting
5 min reading aloud
a meal of 4 food items (apple, 40 g crackers, low-fact yogurt, 250 mL water) was consumed at unlimited time
10 repetitions for each food in a single swallow with 20 s of talking time between food intake
Fukuike et al. [34] 4F/3M sw vs. nsw sw: taking a meal and stepping on a foot pedal when swallowed
nsw: yawn, cough, sigh, throat clearing, gargling, and sipping tea
-
Kurihara et al. [35] 7M sw (food type) vs. nsw sw: tea (10 mL), tea with a thickener (10 mL), rice cake (10 g)
nsw: swallowing nothing
10 repetitions
Lee et al. [36] 8M/9F sw vs. nsw Water, barium suspension (Ba), nectar-thick apple juice (Ne), honey-thick apple juice (Ho), spoon-thick apple juice (Sp) Except for Sp, other drinks involved discrete and continuous tasks. Each task was repeated twice. Water was repeated 3 times
Makeyev et al. [37] 12 sw vs. nsw Start with 10 min silent
10 min reading aloud
Meal of fixed size consumed at an unlimited time (including cheese pizza, yogurt, apple, peanut butter sandwich)
10 min silent
10 min reading aloud
4 visits
Sazonov et al. [38] 20 sw vs. nsw 20 min rest
A meal
20 min rest
4 visits
Sejdic et al. [39] 408 sw vs. nsw (head position) nsw: dry (saliva) swallow
sw: drink water in natural & chin-tucked position
5 swallows for each condition
Skowronski et al. [40] 9 sw vs. nsw (type) sw: 5 mL liquid
nsw: dry swallow, head move, yawn, sniff, tongue move, speech, hum, throat clear, cough
10 repetitions

nsw: non-swallowing; sw: swallowing; vs: versus.