Table 2. Comparisons of various measurements among the study groups.
Values are presented as mean±standard deviation.
DMD, Duchenne muscular dystrophy; ALS, amyotrophic lateral sclerosis; MMD, myotonic muscular dystrophy; FVC_sit(%), a percent of the predicted value of forced vital capacity at sitting position; FVC_sup(%), a percent of the predicted value of forced vital capacity at supine position; MIC, maximal insufflation capacity; UPCF, unassisted peak cough flow; APCF, assisted peak cough flow; MIP_sit(%), a percent of the predicted value of maximum inspiratory pressure at sitting position; MIP_sup(%), a percent of the predicted value of maximal inspiratory pressure at supine position; MEP_sit(%), a percent of the predicted value of maximum expiratory pressure at sitting position; MEP_sup(%), a percent of the predicted value of maximum expiratory pressure at supine position.