Prediction of underwater residual lung volume in healthy men and women.

Clinical Physiology and Functional Imaging
Zackary S CiconeMichael R Esco

Abstract

Regression equations are commonly used to predict residual lung volume (RV) during underwater weighing when measurement is not practical. However, the equations currently available were derived from on-land measures of RV and may account for changes in lung capacity during submersion, thus leading to inaccuracies in assessment of percent body fat (%BF). The purpose of this study was to (1) develop a new equation (RVNEW ) for the prediction of underwater RV, (2) cross-validate RVNEW and compare it to existing RV equations, and (3) compare the effects of RVNEW and existing equations on underwater %BF. One-hundred seventy-five healthy adults were recruited to complete simultaneous hydrostatic weighing and RV measurements. The sample was randomly divided into development (n = 131) and cross-validation (n = 44) cohorts. Regression analysis in the development cohort resulted in the following equation: underwater RV = -3·419 + 0·026 × height (cm) + 0·019 × age (y) (p < 0·001; R2  = 0·53; SEE = 0·26). In the cross-validation cohort, Bland-Altman analysis revealed that the new equation provided the best overall agreement with underwater RV (bias ± 1·96 SD, 0·07 ± 0·5 L), while existing equations produced significantly different values f...Continue Reading

References

Jun 1, 1979·Thorax·A M HallJ E Cotes
Aug 1, 1977·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·R N GirandolaW S Barnes
Jan 1, 1988·Annals of Nutrition & Metabolism·R ForsythR J Shephard
Jul 1, 1969·Journal of Applied Physiology·J H Wilmore
Jan 1, 1966·Journal of Applied Physiology·E AgostoniH Rahn
Oct 1, 1967·Journal of Applied Physiology·A B Craig, D E Ware
Nov 1, 1982·International Journal of Sports Medicine·S M Ostrove, P Vaccaro
Mar 21, 1998·Medicine and Science in Sports and Exercise·W C MillerJ P Wallace
Jan 5, 1999·American Journal of Respiratory and Critical Care Medicine·J L HankinsonK B Fedan
Mar 1, 1956·Journal of Applied Physiology·C R CAREYH J ALVIS
Nov 1, 1949·Journal of Applied Physiology·J BROZEKA KEYS
Jul 5, 2005·The European Respiratory Journal·M R MillerUNKNOWN ATS/ERS Task Force
Jul 21, 2005·Nutrition Reviews·Lawrence E Armstrong
Nov 1, 1932·The Journal of Clinical Investigation·R V Christie
Jul 4, 2006·Journal of Sports Sciences·Shinichi DemuraTamotsu Kitabayashi
Sep 8, 2010·The European Respiratory Journal·P H QuanjerUNKNOWN Global Lungs Initiative
Nov 3, 2016·Journal of Strength and Conditioning Research·Brett S NickersonBailey A Welborn
Mar 12, 2020·Respiratory Care·Jeffrey M HaynesGregg L Ruppel

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology
T R Thomas, G L Etheridge
Medicine and Science in Sports and Exercise
W C MillerJ P Wallace
Canadian Journal of Applied Sport Sciences. Journal Canadien Des Sciences Appliquées Au Sport
A C Hackney, D T Deutsch
© 2021 Meta ULC. All rights reserved