BACKGROUND. Successful extubation of mechanically ventilated patients is essential for the physiotherapist to succeed in respiratory rehabilitation of
the patient. Delay in the weaning process increases the complication rate of mechanical ventilation. A variety of parameters are used as predictors
of extubation readiness, but the association between muscle strength (deltoid, neck flexor muscle group and trapezius), endurance and extubation
readiness has not been determined.
OBJECTIVES. The aim of the study was to determine if muscle strength and endurance can be used as possible predictors of successful extubation
in mechanically ventilated patients. The objectives were to determine if muscle strength measured with the Oxford grading scale can be used as a
possible predictor, and if muscle endurance measured with the MOTOmed letto2 cycle ergometer can be used as a possible predictor.
METHODS. During the pilot study, 37 subjects were recruited. Deltoid, neck flexors and trapezius muscle strength was tested using the Oxford
grading scale and respiratory muscle strength using maximum inspiratory and expiratory pressures. Endurance was determined by riding the
MOTOmed letto2 cycle ergometer for 5 minutes with the upper limbs.
RESULTS. Muscle strength of the deltoid and the neck flexor muscle group tested with the Oxford grading scale was associated with successful
extubation respectively, (p=0.022; p=0.019). Muscle endurance tested with the MOTOmed letto2 cycle ergometer also demonstrated an association
with successful extubation (p=0.014).
CONCLUSION. Future studies with larger sample sizes are recommended.
Meara, P.J.; Du Toit, P.J.(Pretoria : The Government Printer, 1947)
Attention is directed to the paucity of information regarding the
morphological growth and development of muscle, particularly in connection with the microscopical elements comprising muscle. Such knowledge is of value, ...
McConnell, E.E.; Basson, P.A.; Thomas, Shan E.; De Vos, Valerius; De Kock, V.E.; De Lange, M.; Bigalke, R.D.; Howell, P.G.; Reinecke, R.K.; Walker, Jane B.(Published by the Government Printer, Pretoria, 1972)
Numerous partially and fully sporulated oocysts of Isospora papionis were found in the skeletal muscles of two free-ranging adult male chacma baboons (Papio ursinus). Only one of them had I. papionis oocysts in the intestines ...
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Forty four Balb C mice, aged 18 weeks were infected with crocodile ( Crocodylus
niloticus)-derived Trichinella species. Of the infected mice, 32 were
randomly divided into two groups each containing equal numbers ...