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Reference Equation for Respiratory Pressures in Pediatric Population: A Multicenter Study.

Lanza FC, de Moraes Santos ML, Selman JP, Silva JC, Marcolin N, Santos J, Oliveira CM, Dal Lago P, Dal Corso S - PLoS ONE (2015)

Bottom Line: The mean PImax value was 85.6 (95%IC 83.6-87.6 cmH2O), and PEmax 84.6 (95%IC 85.5-86.2 cmH2O).The equations for Group 12-18 were 92.472 + (gender * 9.894) + 7.103, (R2 = 0.27, P = 0.006) for PImax; and 68.113 + (gender * 17.022) + 6.46 + (BMI * 0.927), (R2 = 0.34, P<0.0001) for PEmax.This multicenter study determined the respiratory muscle strength prediction equations for children and teenagers.

View Article: PubMed Central - PubMed

Affiliation: Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, Sao Paulo, SP, Brazil.

ABSTRACT
Previous studies have proposed only one prediction equation for respiratory muscle strength without taking into consideration differences between ages in pediatric population. In addition, those researches were single-center studies. The objective of this study was to establish reference equations for maximal inspiratory pressure (PImax) and maximal expiratory pressure (PEmax) in children and teenagers. In a multicenter study, 450 healthy volunteers were evaluated (aged 6-18yrs). There were included volunteers with normal lung function. We excluded volunteers who could not perform the tests; participated in physical activity more than twice a week; were born prematurely; smokers; chronic respiratory, cardiologic, and/or neurologic diseases; had acute respiratory disease during the prior three weeks. The volunteers were divided into two groups: Group 6-11 (6-11yrs) and Group 12-18 (12-18yrs). PImax and PEmax were measured according to statement. The mean PImax value was 85.6 (95%IC 83.6-87.6 cmH2O), and PEmax 84.6 (95%IC 85.5-86.2 cmH2O). The prediction equations for PImax and PEmax for Group 6-11 were 37.458-0.559 + (age * 3.253) + (BMI * 0.843) + (age * gender * 0.985); and 38.556 + 15.892 + (age * 3.023) + (BMI * 0.579) + (age * gender * 0.881), respectively (R2 = 0.34 and 0.31, P<0.001). The equations for Group 12-18 were 92.472 + (gender * 9.894) + 7.103, (R2 = 0.27, P = 0.006) for PImax; and 68.113 + (gender * 17.022) + 6.46 + (BMI * 0.927), (R2 = 0.34, P<0.0001) for PEmax. This multicenter study determined the respiratory muscle strength prediction equations for children and teenagers.

No MeSH data available.


Related in: MedlinePlus

Scatter plot of respiratory muscles strength (PImax and PEmax) and age.
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pone.0135662.g001: Scatter plot of respiratory muscles strength (PImax and PEmax) and age.

Mentions: There was a statistically significant difference in respiratory muscle strength between male and female subjects (Table 1); PImax was 82.1 [79.2–84.5] cmH2O for females and 89.7 [86.8–92.8] cmH2O for males (P<0.0001) and PEmax was 80.2 [77.7–82.5] cmH2O for females and 89.5 [86.4–91.9] cmH2O for males (P<0.0001). The older volunteers (Group 12–18) showed greater respiratory muscle strength than Group 6–11 (P < 0.0001; Table 2), which means that respiratory muscle strength increases as children grow, but there is nonlinear increases on it (Figure 1).


Reference Equation for Respiratory Pressures in Pediatric Population: A Multicenter Study.

Lanza FC, de Moraes Santos ML, Selman JP, Silva JC, Marcolin N, Santos J, Oliveira CM, Dal Lago P, Dal Corso S - PLoS ONE (2015)

Scatter plot of respiratory muscles strength (PImax and PEmax) and age.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4546350&req=5

pone.0135662.g001: Scatter plot of respiratory muscles strength (PImax and PEmax) and age.
Mentions: There was a statistically significant difference in respiratory muscle strength between male and female subjects (Table 1); PImax was 82.1 [79.2–84.5] cmH2O for females and 89.7 [86.8–92.8] cmH2O for males (P<0.0001) and PEmax was 80.2 [77.7–82.5] cmH2O for females and 89.5 [86.4–91.9] cmH2O for males (P<0.0001). The older volunteers (Group 12–18) showed greater respiratory muscle strength than Group 6–11 (P < 0.0001; Table 2), which means that respiratory muscle strength increases as children grow, but there is nonlinear increases on it (Figure 1).

Bottom Line: The mean PImax value was 85.6 (95%IC 83.6-87.6 cmH2O), and PEmax 84.6 (95%IC 85.5-86.2 cmH2O).The equations for Group 12-18 were 92.472 + (gender * 9.894) + 7.103, (R2 = 0.27, P = 0.006) for PImax; and 68.113 + (gender * 17.022) + 6.46 + (BMI * 0.927), (R2 = 0.34, P<0.0001) for PEmax.This multicenter study determined the respiratory muscle strength prediction equations for children and teenagers.

View Article: PubMed Central - PubMed

Affiliation: Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, Sao Paulo, SP, Brazil.

ABSTRACT
Previous studies have proposed only one prediction equation for respiratory muscle strength without taking into consideration differences between ages in pediatric population. In addition, those researches were single-center studies. The objective of this study was to establish reference equations for maximal inspiratory pressure (PImax) and maximal expiratory pressure (PEmax) in children and teenagers. In a multicenter study, 450 healthy volunteers were evaluated (aged 6-18yrs). There were included volunteers with normal lung function. We excluded volunteers who could not perform the tests; participated in physical activity more than twice a week; were born prematurely; smokers; chronic respiratory, cardiologic, and/or neurologic diseases; had acute respiratory disease during the prior three weeks. The volunteers were divided into two groups: Group 6-11 (6-11yrs) and Group 12-18 (12-18yrs). PImax and PEmax were measured according to statement. The mean PImax value was 85.6 (95%IC 83.6-87.6 cmH2O), and PEmax 84.6 (95%IC 85.5-86.2 cmH2O). The prediction equations for PImax and PEmax for Group 6-11 were 37.458-0.559 + (age * 3.253) + (BMI * 0.843) + (age * gender * 0.985); and 38.556 + 15.892 + (age * 3.023) + (BMI * 0.579) + (age * gender * 0.881), respectively (R2 = 0.34 and 0.31, P<0.001). The equations for Group 12-18 were 92.472 + (gender * 9.894) + 7.103, (R2 = 0.27, P = 0.006) for PImax; and 68.113 + (gender * 17.022) + 6.46 + (BMI * 0.927), (R2 = 0.34, P<0.0001) for PEmax. This multicenter study determined the respiratory muscle strength prediction equations for children and teenagers.

No MeSH data available.


Related in: MedlinePlus