Inspiratory muscle training with threshold or incentive spirometry: Which is the most effective?
Inspiratory muscular training (IMT) increases the respiratory muscle strength, however, there is no data demonstrating its superiority over the incentive spirometry (IS) in doing so. Values of muscle strength after IMT (Threshold IMT(®)) and by the IS (Voldyne(®)) in healthy females was compared. Subjects (n=40) were randomly divided into control group (CG, n=14), IS group (ISG, n=13) and threshold group (TG, n=13). PImax was measured before (pre-IMT), at 15 and 30 days of IMT. There was an increase in PImax of the TG at 15 days (p<0.001) and 30 days of IMT (p<0.001). The same occurred with the ISG, which increased the PImax at 15 days (p<0.001) and 30 days of training (p<0.001). After 30 days of IMT, the TG presented a PImax which was significantly higher than ISG and the CG (p=0.045 and p<0.001, respectively). It can be concluded that IMT by threshold was more effective in increasing muscle strength than the Voldyne.
Pos Graduate Course in Health Promotion, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil; Physical Therapy Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Dulciane Nunes
DN
Paiva
Physical Therapy Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Laíse Bender
LB
Assmann
Physical Therapy Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Diogo Fanfa
DF
Bordin
Physical Therapy Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Ricardo
R
Gass
Faculty of Medicine, Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
Renan Trevisan
RT
Jost
Department of Biophysics and Biometry, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Mario
M
Bernardo-Filho
University of Brasília, Brasília, DF, Brazil.
Rodrigo Alves
RA
França
Physical Therapy Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Dannuey Machado
DM
Cardoso
D000293:Adolescent; D000328:Adult; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D053580:Muscle Strength; D012129:Respiratory Function Tests; D012138:Respiratory Therapy; D013147:Spirometry / Q000379:methods; D055815:Young Adult
Incentive spirometry; Inspiratory muscular training; Maximal inspiratory pressure