Factors Affecting Normal Values for Ventilatory Lung Function<sup>1,</sup><sup>2</sup>

Woolcock, Ann J.; Colman, MA; Blackburn, C. R. B.

doi:10.1164/arrd.1972.106.5.692

Cited by 81 publications

(33 citation statements)

References 22 publications

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“…This correlation was found to be negative and the results were found to be statistically highly significant (p< 0.005), as shown in [Table/ Fig-4]. This was in agreement with the reports of other investigators [10][11][12][13]. The decrease in the PEFR with an increase in age was probably because this variable was dependent on the expiratory effort and the elastic recoil of the lungs and the airway size, factors which are known to reduce with advancing age.…”

Section: Discussionsupporting

confidence: 92%

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Kaur

Singh²,

Makkar³

et al. 2013

JCDR

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Objective: The present study was undertaken to study the variations in the Peak Expiratory Flow Rate (PEFR) with various factors like age, height, weight, body surface area (BSA) and the Body Mass Index (BMI) in healthy women of the Malwa region of Punjab, India. Material and Methods:Three hundred healthy women who were aged 20-50 years were selected from the Malwa region of Punjab and their PEFRs were determined. The influences of age, height, weight, BSA and BMI on the PEFR were studied. The PEFR test was performed by using a mini Wright Peak Expiratory flow meter. Results:The mean PEFR of the women of the Malwa region of Punjab was found to be 395.87 ± 56.81 litres/minute. The PEFR increased with an increase in the age, height, weight and the BSA, but it decreased with an increase in the BMI. Conclusion:This study generated the preliminary values of PEFR for the women of the Malwa region of Punjab, India.

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Section: Discussionsupporting

confidence: 92%

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Kaur

Singh²,

Makkar³

et al. 2013

JCDR

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“…This observation was in accordance with that of other study [8]. Moreover, when mean PEFR of study subjects was compared with that of control subjects according to three weight sub groups, it was found to be less than that of control subjects, which was found to be highly significant [Table/ Fig-4].…”

Section: Pefr and Height: As Shown In [supporting

confidence: 89%

Effect of Wood Dust on Respiratory Health Status of Carpenters

Mohan

Aprajita²,

Panwar³

2013

JCDR

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“…For this purpose young twins are most suitable, because they share common environments (Kawakami et al, 1980). Physical form (Krishnan and Vareed, 1932;Palamarchuk, 1986), nutritional and socioeconomic status (Ashcroft and Lovell, 1964;Cotes et al, 1974), puberty (Keithley, 1939), cultural factors (Gabbard and Tandy, 1988), lifestyle (Woolcock et al, 1972) and intrauterine factors (quoted from Strickberger, 1976) are to be taken into account as environmental factors of this study.…”

Section: Discussionmentioning

confidence: 99%

The Estimation of the Heritability of Anthropometric Measurements.

1999

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Abstract. The relative contributions of genetic and environmental components in the variability of anthropometric measurements were studied in 54 twin pairs. Thirty pairs of monozygotic (MZ) and 24 pairs of dizygotic (DZ) twins were investigated to estimate the role of genetic, environmental and hereditary factors determining anthropometric measurements comprising body weight, standing height, sitting height, knee height, arm span, chest circumference and biiliac diameter. Within-pair variance for all the measurements were significantly smaller (p<0.05-0.01) in MZ twins than in DZ twins of both-sex twin group. Within-pair correlations for those measurements were higher (p<0.01) in both MZ and DZ twins. Correlation values were, apparently, higher more in MZ than in DZ twins. Besides, all the measurements are highly heritable components and heritability estimates ranged 40%-91%. When both MZ and DZ twin pairs of both-sex population were classified, based on age and sex, into different sub-groups interindividual variabilities were altered to a certain degrees. These data state that anthropometric measurements are influenced by genetic factors than environmental factors and besides, age and sex are possibly associated, to some extent, with the genetic influence upon anthropometric measurements.

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Factors Affecting Normal Values for Ventilatory Lung Function^1,²

Cited by 81 publications

References 22 publications

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Effect of Wood Dust on Respiratory Health Status of Carpenters

The Estimation of the Heritability of Anthropometric Measurements.

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Factors Affecting Normal Values for Ventilatory Lung Function1,2

Cited by 81 publications

References 22 publications

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Variations in the Peak Expiratory Flow Rate with Various Factors in a Population of Healthy Women of the Malwa Region of Punjab, India

Effect of Wood Dust on Respiratory Health Status of Carpenters

The Estimation of the Heritability of Anthropometric Measurements.

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Product

Resources

About

Factors Affecting Normal Values for Ventilatory Lung Function^1,²