{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T06:41:30Z","timestamp":1770964890163,"version":"3.50.1"},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,3,24]],"date-time":"2011-03-24T00:00:00Z","timestamp":1300924800000},"content-version":"vor","delay-in-days":5653,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Lang &amp;amp; Comm Disor"],"published-print":{"date-parts":[[1995,10]]},"abstract":"<jats:title>ABSTRACTS<\/jats:title><jats:p>The lip function of 16 speakers with upper motor neuron damage following cerebrovascular accident (CVA), was investigated using instrumental measures. Sixteen, non\u2010neurologically impaired adults matched for age and sex served as controls. The results of the instrumental investigations revealed that the CVA speakers had patterns of lip function that were significantly different from the control speakers. Specifically, on maximum force tasks, the CVA speakers were found to produce significantly lower maximum lip force values. Maximum rate of attempts at lip movement was also slower in the CVA speakers. In addition, the instrumental investigation revealed that the CVA speakers demonstrated a significant decline in pressure over the course of the task involving 10 attempts at maximum lip force. In contrast, the control speakers maintained a consistent level of force throughout the 10 repetitions\/attempts. Overall, the findings suggest that the CVA speakers have deficits in maximum lip force, endurance of lip strength and rate of lip movements. Correlations conducted between instrumental measures of maximum lip strength and the perceptual ratings of overall intelligibility, precision of consonants, precision of vowels and length of phonemes revealed no significant relationship.<\/jats:p><jats:p>Le fonctionnement labial de seize sujets souffrant de troubles des neurones moteurs sup\u00e9rieurs par suite d'accidents c\u00e9r\u00e9brovasculaires (cerebrovascular accident, CVA) a \u00e9t\u00e9 examin\u00e9 au moyen de mesures instrumentales. Seize adultes au syst\u00e8me neural intact et assortis aux premiers du point de vue de l'\u00e2ge et du sexe ont servi de centr\u00f4les. Les r\u00e9sultats des recherches instrumentales a r\u00e9v\u00e9l\u00e9 qu'entre les sujets CVA et les sujets de centr\u00f4le il existait des diff\u00e9rences significatives en ce qui concernait les types de fonctionnnements labiaux. En particulier, l'on a observ\u00e9 que lors de t\u00e2ches impliquant le maximum de force, les sujets CVA produisaient des valeurs de force labiale maximale significativement plus basses. La vitesse maximale de r\u00e9p\u00e9tition de mouvements labiaux \u00e9tait aussi plus lente chez les sujets CVA. De plus, l'\u00e9tude exp\u00e9rimentale a r\u00e9v\u00e9l\u00e9 chez les sujets CVA un d\u00e9clin significatif de pression lors d'une t\u00e2che concernant 10 r\u00e9p\u00e9titions de la force labiale maximale. Par contre, les sujets de contr\u00f4le maintenaient un niveau de force constant pendant tout le cours des 10 r\u00e9p\u00e9titions. En gros, les r\u00e9sultats montrent que les sujets CVA ont des d\u00e9ficits de force labiale maximale, d'endurance labiale et de vitesse de mouvements labiaux. Des corr\u00e9lations calcul\u00e9es entre les mesures instrumentales de force labiale maximale et les jugements perceptifs d'intelligibilit\u00e9 g\u00e9n\u00e9rale, de pr\u00e9cision des consonnes, de pr\u00e9cision des voyelles et de longueur des phon\u00e8mes, n'ont r\u00e9v\u00e9l\u00e9 aucune relation significative.<\/jats:p><jats:p>Die Lippenaktivit\u00e4t von sechszehn Personen mit Sch\u00e4den der h\u00f6heren Motorneuronen nach zerebrovaskularem Trauma (cerebrovascular accident, CVA) wurde instrumenteil erfa\u00dft. Sechszehn nicht\u2013neurologisch behinderte Erwachsene, gepaart nach Alter und Geschlecht, dienten als Kontrolle. Die Ergebnisse zeigten signifikant unterschiedliche Lippenfunktionen in den CVA\u2010 und den Kontrollpersonen. Im Detail Bei Aufgaben, die den maximalen Kraftaufwand testeten, wurden signifikant niedrigere Maximalkraftwerte bei den CVA\u2010Personen gefunden. Die maximale Wiederholungsrate lag bei den CVA\u2010Personen ebenfalls niedrieger. Weiterhin zeigte sich bei den CVA\u2010Personen eine signifikante Druckabnahme im Verlauf einer Aufgabe, die eine zehnmalige Wiederholung der Maximalkraft erforderte. Im Gegensatz dazu behielten die Kontrollpersonen einen konstanten Kraftaufwand \u00fcber alle zehn Wiederholungen. Insgesamt deuten die Ergebnisse darauf hin, da\u00df die CVA\u2010Personen in der maximalen Lippenkraft, in der Ausdauer der Lippenkraft und in der Geschwindigkeit von Lippenbewegungen defizit\u00e4r sind. Korrelationsberechungen zwischen den Instrumentalma\u00dfen f\u00fcr maximale Lippenkraft und perzeptuellen Einstufungen der Gesamtverst\u00e4ndlichkeit, der Genauigkeit von Konsonanten, der Genauigkeit von Vokalen und der L\u00e4nge von Phonemen ergaben keine signifikanten Beziehungen.<\/jats:p>","DOI":"10.3109\/13682829509087244","type":"journal-article","created":{"date-parts":[[2007,11,23]],"date-time":"2007-11-23T10:07:37Z","timestamp":1195812457000},"page":"451-466","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Lip function in subjects with upper motor neuron type dysarthria following cerebrovascular accidents"],"prefix":"10.1111","volume":"30","author":[{"given":"Elizabeth C.","family":"Thompson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce E.","family":"Murdoch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter D.","family":"Stokes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,3,24]]},"reference":[{"key":"e_1_2_1_2_1","unstructured":"AbbsJH BarlowSM NetsellR.(1978).Lip closing force: Normative data and some clinical observations. 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