[Purpose] This study investigated the effects of lingual strength training (LST) on
lingual strength and articulator function in stroke patients with dysarthria. [Subjects
and Methods] 16 stroke patients with dysarthria were randomly assigned into two groups:
the experimental group (n=8) or the control group (n=8). Both groups received the
conventional rehabilitation therapy at 30 min/day, 5 times for week, and during 4 weeks,
and the experimental group received an additional 30 min of LST using the Iowa Oral
Performance Instrument (IOPI). The Maximum Isometric Tongue Pressures (MIPs) was used to
assess the lingual strength and the Alternating-Motion Rate (AMR) and Sequential-Motion
Rate (SMR) were used to measure the articulator function. [Results] After the
intervention, the experimental group showed a significant improvement in MIPs and AMR
(/tə/) than the control group. [Conclusion] Findings of this study suggest that LST
provides positive effects on lingual strength and articulator function, and thus can be
used as an interventional method in stroke patients with dysarthria.
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