PMID- 30038857
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230926
IS  - 2167-8359 (Print)
IS  - 2167-8359 (Electronic)
IS  - 2167-8359 (Linking)
VI  - 6
DP  - 2018
TI  - Reference norms for evaluating maximum expiratory flow of children and 
      adolescents of the Maule Region in Chile.
PG  - e5157
LID - 10.7717/peerj.5157 [doi]
LID - e5157
AB  - BACKGROUND: The norms for evaluating the maximum expiratory flow (MEF) usually 
      are developed according to chronological age and height. However, to date, little 
      research has been conducted using reference values that take into account the 
      temporal changes of biological maturation. The objectives of this study were to 
      (a) compare the MEF with those of other international studies, (b) align the MEF 
      values with chronological and biological age, and (c) propose reference standards 
      for children and adolescents. METHODS: The sample studied consisted of 3,566 
      students of both sexes (1,933 males and 1,633 females) ranging in age from 5.0 to 
      17.9 years old. Weight, standing height, and sitting height were measured. Body 
      mass index was calculated. Biological maturation was predicted by using age of 
      peak height velocity growth (APHV). MEF (L/min) was obtained by using a forced 
      expiratory manoeuvre. Percentiles were calculated using the LMS method. RESULTS 
      AND DISCUSSION: Predicted APHV was at age 14.77 +/- 0.78 years for males and for 
      females at age 12.74 +/- 1.0 years. Biological age was more useful than 
      chronological age for assessing MEF in both sexes. Based on these findings, 
      regional percentiles were created to diagnose and monitor the risk of asthma and 
      the general expiratory status of paediatric populations.
FAU - Cossio-Bolanos, Marco Antonio
AU  - Cossio-Bolanos MA
AD  - Departamento de Ciencias de la Actividad Fisica, Universidad Catolica del Maule, 
      Talca, Chile.
AD  - Faculty of Physical Education, State University of Campinas, Campinas, Sao Paulo, 
      Brazil.
AD  - Universidad Nacional de San Agustin, Arequipa, Peru.
FAU - Andruske, Cynthia
AU  - Andruske C
AD  - Centro de Investigacion Especializado en Ciencias de la Educacion, Salud y 
      Deporte, CINEMAROS, Arequipa, Peru.
FAU - Arruda, Miguel
AU  - Arruda M
AD  - Faculty of Physical Education, State University of Campinas, Campinas, Sao Paulo, 
      Brazil.
FAU - Sulla-Torres, Jose
AU  - Sulla-Torres J
AD  - Universidad Catolica de Santa Maria, Arequipa, Peru.
FAU - Pacheco-Carrillo, Jaime
AU  - Pacheco-Carrillo J
AD  - Universidad del Bio Bio, Chillan, Chile.
FAU - Urra-Albornoz, Camilo
AU  - Urra-Albornoz C
AD  - Facultad de Salud, Carrera de Kinesiologia, Universidad Santo Tomas, Talca, 
      Chile.
FAU - Gomez-Campos, Rossana
AU  - Gomez-Campos R
AD  - Universidad Autonoma de Chile, Talca, Chile.
LA  - eng
SI  - figshare/10.6084/m9.figshare.5687392.v1
PT  - Journal Article
DEP - 20180716
PL  - United States
TA  - PeerJ
JT  - PeerJ
JID - 101603425
PMC - PMC6052850
OTO - NOTNLM
OT  - Biological age
OT  - Chile
OT  - Maximum expiratory flow
OT  - Percentiles
COIS- The authors declare that they have no competing interests.
EDAT- 2018/07/25 06:00
MHDA- 2018/07/25 06:01
PMCR- 2018/07/16
CRDT- 2018/07/25 06:00
PHST- 2017/12/24 00:00 [received]
PHST- 2018/06/13 00:00 [accepted]
PHST- 2018/07/25 06:00 [entrez]
PHST- 2018/07/25 06:00 [pubmed]
PHST- 2018/07/25 06:01 [medline]
PHST- 2018/07/16 00:00 [pmc-release]
AID - 5157 [pii]
AID - 10.7717/peerj.5157 [doi]
PST - epublish
SO  - PeerJ. 2018 Jul 16;6:e5157. doi: 10.7717/peerj.5157. eCollection 2018.