Estimation of inspiratory muscle strength in mechanically ventilated patients: The measurement of maximal inspiratory pressure

1986 ◽  
Vol 1 (1) ◽  
pp. 32-38 ◽  
Author(s):  
John J. Marini ◽  
Thomas C. Smith ◽  
Virnita Lamb
Keyword(s):  
Muscle Strength ◽  
Inspiratory Muscle ◽  
Inspiratory Pressure ◽  
Maximal Inspiratory Pressure ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Inspiratory Muscle Strength ◽  
Ventilated Patients

scholarly journals Inspiratory muscle strength in subjects with tetraplegia: viability of evaluation through the measurement of maximal inspiratory pressure

2014 ◽  
Vol 27 (3) ◽  
pp. 371-377
Author(s):  
Marlene Aparecida Moreno ◽  
Juliana Viana Paris ◽  
Raphael do Nascimento Pereira ◽  
Antonio Roberto Zamunér ◽  
Tais Mendes de Camargo ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Cross Sectional Study ◽  
Inspiratory Muscle ◽  
Inspiratory Pressure ◽  
Maximal Inspiratory Pressure ◽  
Cross Sectional ◽  
Pressure Meter ◽  
Predicted Values ◽  
Inspiratory Muscle Strength ◽  
Sniff Nasal Inspiratory Pressure

Objective To analyze the values of maximal inspiratory pressure (MIP) and sniff nasal inspiratory pressure (SNIP) and to verify the existence of concordance between the two evaluation methodologies, in subjects with tetraplegia. Materials and methods Cross-sectional study with 17 tetraplegic men, aged 30.42 ± 7.67 years, who underwent MIP and SNIP evaluation using a respiratory pressure meter. Results The MIP and SNIP values obtained showed no difference when compared to each other (88.42 ± 29.39 vs. 86.68 ± 25.40 cmH2O, respectively). They were, however, significantly lower compared to the predicted values (MIP = 128.92 ± 7.18; SNIP = 114.11 ± 3.19 cmH2O), with the MIP values presenting correlation (r2 = 0.94; p < 0.0001) and concordance with those of the SNIP. Conclusions Both the MIP and SNIP values obtained were lower than the predicted values, indicating a reduction in inspiratory muscle strength (IMS). Both techniques showed correlation and concordance, suggesting that MIP can be used as a noninvasive method for IMS evaluation in this population.

scholarly journals AIRWAY POSITIVE PRESSURE VS. EXERCISES WITH INSPIRATORY LOADING FOCUSED ON PULMONARY AND RESPIRATORY MUSCULAR FUNCTIONS IN THE POSTOPERATIVE PERIOD OF BARIATRIC SURGERY

2018 ◽  
Vol 31 (2) ◽  
Author(s):  
Maura Rigoldi Simões da ROCHA ◽  
Stefane SOUZA ◽  
Carolina Moraes da COSTA ◽  
Daniela Faleiros Bertelli MERINO ◽  
Maria Imaculada de Lima MONTEBELO ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Muscle Strength ◽  
Inspiratory Muscle ◽  
Inspiratory Pressure ◽  
Positive Pressure ◽  
Maximal Inspiratory Pressure ◽  
Significant Difference ◽  
Respiratory Physiotherapy ◽  
Inspiratory Muscle Strength ◽  
Inspiratory Load

ABSTRACT Background: Bariatric surgery can trigger postoperative pulmonary complications due to factors inherent to the procedure, mainly due to diaphragmatic dysfunction. Aim: To evaluate and compare the effects of two levels of positive pressure and exercises with inspiratory load on lung function, inspiratory muscle strength and respiratory muscle resistance, and the prevalence of atelectasis after gastroplasty. Methods: Clinical, randomized and blind trial, with subjects submitted to bariatric surgery, allocated to two groups: positive pressure group, who received positive pressure at two levels during one hour and conventional respiratory physiotherapy and inspiratory load group, who performed exercises with load linear inspiratory pressure, six sets of 15 repetitions, in addition to conventional respiratory physiotherapy, both of which were applied twice in the immediate postoperative period and three times a day on the first postoperative day. Spirometry was performed for pulmonary function analysis, nasal inspiratory pressure for inspiratory muscle strength and incremental test of respiratory muscle resistance for sustained maximal inspiratory pressure, both preoperatively and on hospital discharge on the second postoperative day. Results: There was no significant difference (p> 0.05) in the expiratory reserve volume and in the tidal volume in the pre and postoperative periods when compared intra and intergroup. There was no significant difference (p>0.05) in the nasal inspiratory pressure and the maximal inspiratory pressure maintained in the inspiratory load group in the intragroup evaluation, but with a significant difference (p<0.05) compared to the positive pressure group. The prevalence of atelectasis was 5% in both groups with no significant difference (p>0.05) between them. Conclusion: Both groups, associated with conventional respiratory physiotherapy, preserved expiratory reserve volume and tidal volume and had a low atelectasis rate. The inspiratory loading group still maintained inspiratory muscle strength and resistance of respiratory muscles.

scholarly journals Trend of maximal inspiratory pressure in mechanically ventilated patients: predictors

Clinics ◽  
2008 ◽  
Vol 63 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Pedro Caruso ◽  
Denise Simão Carnieli ◽  
Keila Harue Kagohara ◽  
Adriana Anciães ◽  
Jacqueline Santos Segarra ◽  
...  
Keyword(s):  
Inspiratory Pressure ◽  
Maximal Inspiratory Pressure ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Ventilated Patients

Moderate- and High-Intensity Inspiratory Muscle Training Equally Improves Inspiratory Muscle Strength and Endurance—A Double-Blind Randomized Controlled Trial

2020 ◽  
pp. 1-9
Author(s):  
Patricia Rehder-Santos ◽  
Raphael M. Abreu ◽  
Étore De F. Signini ◽  
Claudio D. da Silva ◽  
Camila A. Sakaguchi ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Oxygen Uptake ◽  
High Intensity ◽  
Peak Power ◽  
Sham Group ◽  
Inspiratory Muscle ◽  
Inspiratory Pressure ◽  
Moderate Intensity ◽  
Muscle Training ◽  
Inspiratory Muscle Strength

Background and Objective: Inspiratory muscle training (IMT) produced outstanding results in the physical performance of active subjects; however, little is known about the best training intensity for this population. The objective was to investigate the impact of an IMT of high intensity, using the critical inspiratory pressure (CIP), on inspiratory muscle strength (IMS), inspiratory muscle endurance (IME), peak power, and oxygen uptake of recreational cyclists; and to compare these results with moderate-intensity IMT (60% of maximal inspiratory pressure [MIP]). Methods: Thirty apparently healthy male recreational cyclists, 20–40 years old, underwent 11 weeks of IMT (3 times per week; 55 min per session). Participants were randomized into 3 groups: sham group (6 cmH2O; n = 8); 60% MIP (MIP60; n = 10) and CIP (n = 12). All participants performed the IMS test and incremental IME test at the first, fifth, ninth, and 13th weeks of the experimental protocol. Cardiopulmonary exercise testing was performed on an electromagnetic braking cycle ergometer pre-IMT and post-IMT. Data were analyzed using a 2-way repeated measures ANOVA (group and period factors). Results: IMS increased in CIP and MIP60 groups at the ninth and 13th weeks compared with the sham group (P < .001; β = 0.99). Regarding IME, there was an interaction between the CIP and MIP60 groups in all periods, except in the initial evaluation (P < .001; β = 1.00). Peak power (in watts) increased after IMT in CIP and MIP60 groups (P = .01; β = 0.67). Absolute oxygen uptake did not increase after IMT (P = .49; β = 0.05). Relative oxygen uptake to lean mass values did not change significantly (P = .48; β = 0.05). Conclusion: High-intensity IMT is beneficial on IMS, IME, and peak power, but does not provide additional gain to moderate intensity in recreational cyclists.

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