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Titolo:
Respiratory abdominal muscle recruitment and chest wall motion in myotonicmuscular dystrophy
Autore:
Ugalde, V; Walsh, S; Abresch, RT; Bonekat, HW; Breslin, E;
Indirizzi:
Univ Calif Davis, Med Ctr, Dept Phys Med & Rehabil, Sacramento, CA 95817 USA Univ Calif Davis Sacramento CA USA 95817 ehabil, Sacramento, CA 95817 USA Univ Calif Davis, Med Ctr, Dept Internal Med, Div Pulm & Crit Care Med, Sacramento, CA 95817 USA Univ Calif Davis Sacramento CA USA 95817 re Med, Sacramento, CA 95817 USA Univ Calif Davis, Med Ctr, Ctr Nursing Res, Sacramento, CA 95817 USA Univ Calif Davis Sacramento CA USA 95817 ng Res, Sacramento, CA 95817 USA
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 1, volume: 91, anno: 2001,
pagine: 395 - 407
SICI:
8750-7587(200107)91:1<395:RAMRAC>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXPIRATORY LUNG-VOLUME; INSPIRATORY PRESSURE; PULMONARY-FUNCTION; EXERCISE; HUMANS; VENTILATION; DISEASE; DIAPHRAGM; MANEUVERS; HYPERCAPNIA;
Keywords:
dynamic electromyogram; transversus abdominis; inspiratory resistance breathing; end-expiratory lung volume;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Ugalde, V Univ Calif Davis, Med Ctr, Dept Phys Med & Rehabil, 4860 Y St,Suite 3850, Sacramento, CA 95817 USA Univ Calif Davis 4860 Y St,Suite 3850 Sacramento CA USA 95817 SA
Citazione:
V. Ugalde et al., "Respiratory abdominal muscle recruitment and chest wall motion in myotonicmuscular dystrophy", J APP PHYSL, 91(1), 2001, pp. 395-407

Abstract

Abdominal muscles are selectively active in normal subjects during stress and may increase the potential energy for inspiration by reducing the end-expiratory lung volume (EELV). We hypothesized that a similar process would occur in subjects with myotonic muscular dystrophy (MMD), but would be lesseffective, because of to their weakness and altered chest wall mechanics. Fine-wire electromyography (EMG) of the transversus abdominis (TA), internal oblique (IO), external oblique, and rectus abdominis was recorded in 10 MMD and 10 control subjects. EMG activity, respiratory inductive plethysmography, and gastric pressure were recorded during static pressure measurementand at increasing levels of inspiratory resistance breathing. EELV was reduced and chest wall motion was synchronous only in controls. Although the TA and IO were selectively recruited in both groups, EMG activity of the MMDgroup was twice that of controls at the same inspiratory pressure. In MMD subjects with mildly reduced forced vital capacity, significant differencescan be seen in abdominal muscle recruitment, wall motion, work of breathing, and ventilatory parameters.

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Documento generato il 04/04/20 alle ore 01:52:15