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Wednesday, May 13, 2020 | History

4 edition of Comparison of hydrostatic weighing at residual volume and total lung capacity in boys found in the catalog.

Comparison of hydrostatic weighing at residual volume and total lung capacity in boys

Comparison of hydrostatic weighing at residual volume and total lung capacity in boys

  • 355 Want to read
  • 37 Currently reading

Published .
Written in English

    Subjects:
  • Body composition -- Measurement,
  • Adipose tissues,
  • Hydrostatics

  • Edition Notes

    Statementby Mary J. DeLisio.
    The Physical Object
    FormatMicroform
    Paginationvi, 55 leaves.
    Number of Pages55
    ID Numbers
    Open LibraryOL13596378M
    OCLC/WorldCa11609605

      The purpose of this study was to establish the validity and reliability of a hydrostatic weighing method using total lung capacity (measuring vital capacity with a respirometer at the time of weighing) the prone position, and a small oblong tank. The validity of the method was established by comparing the TLC prone (tank) method against three hydrostatic weighing methods administered Cited by: 9. Get this from a library! Measurement of body density by hydrostatic weighing at residual volume and total lung capacity. [Jerry L Coffman].

    Residual volume (RV) Amount of air remaining in the lungs after forceful and complete expiration (volume of air that remains in lungs after maximum exhalation) Total lung capacity (TLC). Hydrostatic underwater weighing is a form of densitometry (another being air displacement plethysmography), which derives body composition from body density and body uses Archimedes' principle of displacement.. It is based upon the classic two-component (2-C) model of body composition which assumes that body weight is composed of fat free mass (FFM) with a constant .

    Hydrostatic weighing, also referred to as "underwater weighing", "hydrostatic body composition analysis", and "hydrodensitometry" is a technique for measuring the mass per unit volume of a living person's body. It is a direct application of Archimedes' principle, that an object displaces its own volume of water. capacity (IC), functional residual capacity (FRC), and total lung capacity (TLC). TV (Figure A) is the volume of air inspired and expired with each breath during normal breathing. The end of the inspiratory phase is called the end-inspiratory leveland the end of, File Size: 2MB.


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Comparison of hydrostatic weighing at residual volume and total lung capacity in boys Download PDF EPUB FB2

Density with hydrostatic weighing at residual volume and total lung capacity was reduced to r (compared to r in adults (Weltman & Katch ), while the correlation between percent fat at hydrostatic weighing at residual volume and total lung capacity was lowered to r (compared to r in adults (Weltman & Katch )) (Table 2).

Small but statistically significant differences (ptotal body volume (corrected for lung volume) were observed with the use of hydro­static weighing at residual volume ( ± liters) vs hydrostatic weighing at total lung capacity ( ± liters) (r, sy x = liters).Cited by: 1. Hydrostatic weighing (HW) was performed at both residual volume (RV) and total lung capacity (TLC) (both measured on land) to determine if underwater weighting at extreme lung volumes affected the measurement of body density.

Subjects were 72 middle-aged males (mean age = yr) and 51 middle-aged females (mean age = yr).Cited by: Get this from a library.

Comparison of hydrostatic weighing at residual volume and total lung capacity in boys. [Mary J DeLisio]. Hum Biol. Feb;59(1) Comparison of hydrostatic weighing at residual volume and total lung capacity in pre-pubertal males. Weltman A, Janney C, Huber R, Rians CB, Katch by: 1.

Hydrostatic weighing (HW) was performed at both residual volume (RV) and total lung capacity (TLC) (both measured on land) to determine if underwater weighing at extreme lung volumes affected the measurement of body density.

Subjects were 72 middle-aged males (± age = yr) and 51 middle-aged females (± age = yr). Comparison of Hydrostatic Weighing at Residual Volume and Total Lung Capacity in Boys. By Mary J. Delisio.

Abstract. This study was designed to determine if hydrostatic weighing (HW) at total lung capacity (TLC) yield the same results as HW at residual volume (RV).

Forty-two boys (i = y r) from the La Crosse, WI, area were given a Author: Mary J. Delisio. Get this from a library. A comparison of hydrostatic weighing at total lung capacity and residual volume. [Robert George Morgan]. Abstract. The purpose of this study was to establish the validity and reliability of a hydrostatic weighing method using total lung capacity (measuring vital capacity with a respirometer at the time of weighing) the prone position, and a small oblong tank.

The validity of the method was established by comparing the TLC prone (tank) Cited by: 9. A comparison of three hydrostatic weighing techniques: without head submersion, total lung capacity, and residual volume.

Abstract: The purpose of this study was to compare the without head submersion (HWNHS) and total lung capacity (HWTLC) hydrostatic weighing techniques to the criterion measure of hydrostatic weighing at residual volume (HWRV).

Exercise Physiol. 49(l):Hydrostatic weighing (HW) was performed at both residual volume (RV) and functional residual capacity (FRC) to determine if underwater weighing at different lung volumes affected the measurement of body density. Subjects were 43 males, Size: KB.

Total lung capacity, residual volume and predicted residual volume in a densitometric study of older men. Abstract. Results of investigations using various lung volumes for hydrostatic weighing determinations (HWD) appear to be inconclusive. Often, these lung volumes are predicted and not clinically by: 4.

Hydrostatic Weighing Math. Here's the equation for your Body Density (BD): BD = (Weight in Air - Weight in Water) / (Density in Water - RV) RV stands for Residual Volume. That's the amount of air left in your lungs after you fully exhale underwater, and is calculated based on your gender, height, and age.

J Sports Med Phys Fitness. Mar;27(1) Hydrostatic weighing at residual volume and total lung capacity. Smith JF, Bishop PA. PMID:Author: Smith Jf, Bishop Pa. The total lung capacity (TLC), about 6, mL, is the maximum amount of air that can fill the lungs (TLC = TV + IRV + ERV + RV).

The vital capacity (VC), about 4, mL, is the total amount of air that can be expired after fully inhaling (VC = TV + IRV + ERV = approximately 80 percent TLC). Hydrostatic weighing (HW) is a valid, reliable, and widely used laboratory method for assessing total Db. Hydrostatic weighing provides an estimate of total body volume (BV) from the water displaced by the body’s volume.

According to Archimedes’ principle, weight of a body under water is directly proportional to the volume of water displaced by the body’s volume. DELISIO, Mary J. Comparison of hydrostatic weighing at residual volume and total lung capacity in boys. I, 55 pp. (Dr.

Nancy K. Butts) This study was designed to determine if hydrostatic weighing (HW) at total lung capacity (TLC) yield the same results as HW at residual vol- ume (RV). Comparison of hydrostatic weighing at residual volume and total lung capacity.

Correlation between thickness of skinfolds and body density in 88 soldiers. Densometric analysis of body composition: Revision of some quantitative assumptions. The BV must be corrected for the volume of air remaining in the lungs after a maximal expiration (i.e., residual volume or RV), as well as the volume of air in the gastrointestinal tract (GV).

The GV is assumed to be ml. Hydrostatic weighing using scale and chair. Start studying total lung capacity. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Key Points. Lung Capacity is a measure of lung volume inferred from the exhaled during the various cycles of breathing.; There is residual air leftover in the lungs during normal breathing. Vital Capacity is used to diagnose restrictive diseases, while FEV1/FVC ratio is used to diagnose obstructive diseases.

Results of investigations using various lung volumes for hydrostatic weighing determinations (HWD) appear to be inconclusive.

Often, these lung volumes are predicted and not clinically determined. For this reason, total lung capacity (TLC), a measured residual volume (RV), and a predicted residual volume (PRV) were used during HWDs to compare the techniques. Twenty-five Cited by: 4.Residual Volume Residual lung volume was determined prior to exercise and underwater weighing according to the technique of Wilmore (1 7).

Nitrogen percent was measured on a Nitralizer (Med Science, St. Louis, MO) and a liter Collins spirometer modified to reduce the systems dead space to .