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Assessment of body composition by air-displacement plethysmography: influence of body temperature and moisture.

Fields DA, Higgins PB, Hunter GR - Dyn Med (2004)

Bottom Line: METHODS: %fat, body volume and density by the BOD POD before (BOD PODBH) and immediately following hydrostatic weighing (BOD PODFH) were performed in 32 healthy females (age (yr) 33 +/- 11, weight (kg) 64 +/- 14, height (cm) 167 +/- 7).RESULTS: BOD PODFH %fat (27.1%) and body volume (61.5 L) were significantly lower (P </= 0.001) and body density (1.0379 g/cm3) significantly higher (P </= 0.001) than BOD PODBH %fat (28.9%), body volume (61.7 L), and body density (1.0341 g/cm3).CONCLUSION: These data demonstrate for the first time that increases in body heat and moisture result in an underestimation of body fat when using the BOD POD, however, the precise mechanism remains unidentified.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Health and Exercise Sciences, University of Oklahoma, Norman, OK, USA. dafields@ou.edu

ABSTRACT
BACKGROUND: To investigate the effect of body temperature and moisture on body fat (%fat), volume and density by air-displacement plethysmography (BOD POD). METHODS: %fat, body volume and density by the BOD POD before (BOD PODBH) and immediately following hydrostatic weighing (BOD PODFH) were performed in 32 healthy females (age (yr) 33 +/- 11, weight (kg) 64 +/- 14, height (cm) 167 +/- 7). Body temperature and moisture were measured prior to BOD PODBH and prior to BOD PODFH with body moisture defined as the difference in body weight (kg) between the BOD PODBH and BOD PODFH measurements. RESULTS: BOD PODFH %fat (27.1%) and body volume (61.5 L) were significantly lower (P

No MeSH data available.


Related in: MedlinePlus

Scatter plot between the difference in %fat (BOD PODBH and BOD PODFH) and the difference in body temperature (BOD PODBH and BOD PODFH).
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Figure 3: Scatter plot between the difference in %fat (BOD PODBH and BOD PODFH) and the difference in body temperature (BOD PODBH and BOD PODFH).

Mentions: Following hydrostatic weighing (i.e. BOD PODFH) subjects demonstrated a significant increase in body temperature (36.9°C vs. 36.3°C; P ≤ 0.001) and body weight (63.66 vs. 63.58 kg; P ≤ 0.05) as compared to BOD PODBH (Table 1 and Figure 3).


Assessment of body composition by air-displacement plethysmography: influence of body temperature and moisture.

Fields DA, Higgins PB, Hunter GR - Dyn Med (2004)

Scatter plot between the difference in %fat (BOD PODBH and BOD PODFH) and the difference in body temperature (BOD PODBH and BOD PODFH).
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC411054&req=5

Figure 3: Scatter plot between the difference in %fat (BOD PODBH and BOD PODFH) and the difference in body temperature (BOD PODBH and BOD PODFH).
Mentions: Following hydrostatic weighing (i.e. BOD PODFH) subjects demonstrated a significant increase in body temperature (36.9°C vs. 36.3°C; P ≤ 0.001) and body weight (63.66 vs. 63.58 kg; P ≤ 0.05) as compared to BOD PODBH (Table 1 and Figure 3).

Bottom Line: METHODS: %fat, body volume and density by the BOD POD before (BOD PODBH) and immediately following hydrostatic weighing (BOD PODFH) were performed in 32 healthy females (age (yr) 33 +/- 11, weight (kg) 64 +/- 14, height (cm) 167 +/- 7).RESULTS: BOD PODFH %fat (27.1%) and body volume (61.5 L) were significantly lower (P </= 0.001) and body density (1.0379 g/cm3) significantly higher (P </= 0.001) than BOD PODBH %fat (28.9%), body volume (61.7 L), and body density (1.0341 g/cm3).CONCLUSION: These data demonstrate for the first time that increases in body heat and moisture result in an underestimation of body fat when using the BOD POD, however, the precise mechanism remains unidentified.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Health and Exercise Sciences, University of Oklahoma, Norman, OK, USA. dafields@ou.edu

ABSTRACT
BACKGROUND: To investigate the effect of body temperature and moisture on body fat (%fat), volume and density by air-displacement plethysmography (BOD POD). METHODS: %fat, body volume and density by the BOD POD before (BOD PODBH) and immediately following hydrostatic weighing (BOD PODFH) were performed in 32 healthy females (age (yr) 33 +/- 11, weight (kg) 64 +/- 14, height (cm) 167 +/- 7). Body temperature and moisture were measured prior to BOD PODBH and prior to BOD PODFH with body moisture defined as the difference in body weight (kg) between the BOD PODBH and BOD PODFH measurements. RESULTS: BOD PODFH %fat (27.1%) and body volume (61.5 L) were significantly lower (P

No MeSH data available.


Related in: MedlinePlus