Since fat-free tissues are responsible for 95% of basal energy expenditure, fat-free mass is expected to be a better determinant of thyroid size and function than anthropometry. We tested the hypothesis that fat-free tissues as qualitatively determined by body resistance (R) at 50 kHz are more strongly associated with TSH than anthropometric indicators in healthy subjects. A number of 78 euthyroid adults of both sexes were consecutively studied. R was the best single predictor of TSH (R-adj(2)=0.65, p<0.0001). It explained 36% more variance than bw (R-adj(2)=0.29, p<0.0001), the most accurate anthropometric predictor. Sex had no effect on the relationship between TSH, bioelectrical impedance analysis and anthropometry. After the contribution of R to TSH was taken into account, anthropometric indicators were not able to explain any additional part of TSH variance. We conclude that in healthy subjects, bioelectrical resistance is a better indicator of thyroid function than anthropometry, probably because of its more direct relationship with fat-free tissues. Further studies are needed to test whether this relationship holds in under- and over-weight subjects. (C) 2002, Editrice Kurtis.

Sartorio, A., Ferrero, S., Trecate, L., Bedogni, G. (2002). Thyroid function is more strongly associated with body impedance than anthropometry in healthy subjects. JOURNAL OF ENDOCRINOLOGICAL INVESTIGATION, 25(7), 620-623 [10.1007/BF03345086].

Thyroid function is more strongly associated with body impedance than anthropometry in healthy subjects

Bedogni, G
Ultimo
2002

Abstract

Since fat-free tissues are responsible for 95% of basal energy expenditure, fat-free mass is expected to be a better determinant of thyroid size and function than anthropometry. We tested the hypothesis that fat-free tissues as qualitatively determined by body resistance (R) at 50 kHz are more strongly associated with TSH than anthropometric indicators in healthy subjects. A number of 78 euthyroid adults of both sexes were consecutively studied. R was the best single predictor of TSH (R-adj(2)=0.65, p<0.0001). It explained 36% more variance than bw (R-adj(2)=0.29, p<0.0001), the most accurate anthropometric predictor. Sex had no effect on the relationship between TSH, bioelectrical impedance analysis and anthropometry. After the contribution of R to TSH was taken into account, anthropometric indicators were not able to explain any additional part of TSH variance. We conclude that in healthy subjects, bioelectrical resistance is a better indicator of thyroid function than anthropometry, probably because of its more direct relationship with fat-free tissues. Further studies are needed to test whether this relationship holds in under- and over-weight subjects. (C) 2002, Editrice Kurtis.
2002
Sartorio, A., Ferrero, S., Trecate, L., Bedogni, G. (2002). Thyroid function is more strongly associated with body impedance than anthropometry in healthy subjects. JOURNAL OF ENDOCRINOLOGICAL INVESTIGATION, 25(7), 620-623 [10.1007/BF03345086].
Sartorio, A; Ferrero, S; Trecate, L; Bedogni, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/960244
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