Abstract
Huckabee M-L, Steele CM. An analysis of lingual contribution to submental surface electromyographic measures and pharyngeal pressure during effortful swallow. Objective To evaluate the influence of tongue-to-palate pressures on submental muscle contraction and oral and pharyngeal pressure dynamics during effortful swallowing maneuver. Design Comparative analysis of 2 task strategies on biomechanic measures of swallowing. Setting Research laboratory in a free-standing research facility. Participants Consecutive volunteer sample of 20 healthy participants (age range, 20−35y). Interventions Not applicable. Main Outcome Measures Peak amplitude of submental surface electromyography and orolingual and pharyngeal manometric pressure at 4 locations. Results General linear model analysis of variance revealed statistically significant greater amplitudes for the tongue emphasis condition of effortful swallow at all measured sensors ( P<.004). Conclusions Tongue-to-palate emphasis during execution of effortful swallowing increases amplitudes of submental surface electromyography, orolingual pressure, and upper pharyngeal pressure to a greater degree than a strategy of inhibiting tongue-to-palate emphasis.
Published Version
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