Skin temperature and skin blood flow affect bioelectric impedance study of female fat-free mass
This study examined the effects of skin temperature (Ts) and skin blood flow (SKBF) on bioelectrical impedance (BIA) measurements of body composition in healthy young females. The Lukaski (FFM(LUK)) and Guo (FFM(GUO)) BIA equations for measuring female fat-free mass (FFM) were used. All subjects (N...
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| Veröffentlicht in: | Medicine and science in sports and exercise 2000, Vol.32 (1), p.221-227 |
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| creator | LIANG, M. T. C SU, H.-F LEE, N.-Y |
| description | This study examined the effects of skin temperature (Ts) and skin blood flow (SKBF) on bioelectrical impedance (BIA) measurements of body composition in healthy young females.
The Lukaski (FFM(LUK)) and Guo (FFM(GUO)) BIA equations for measuring female fat-free mass (FFM) were used. All subjects (N = 20, age = 18-22 yr) underwent the following measurements under three ambient temperatures (T(amb)): Ts and SKBF for the calf, thigh, biceps, and chest; oral temperature (T(OR)); and the BIA measures of resistance (R) and reactance (Xc). The three T(amb) were 17, 25, and 35 degrees C which were considered as cold (CT), neutral (NT), and hot (HT) conditions, respectively. Their underwater weighing (UWW), lung residual volume, and skinfold thickness were measured in the NT. Data were analyzed using repeated measures of ANOVA and Tukey post-hoc test.
We observed that in the CT mean SKBF and Ts decreased (P < 0.05) and R and Xc increased (P < 0.05), compared with those in both NT and HT. However, in the HT both SKBF and Ts increased and R deceased, but Xc remained unchanged relative to the NT. In these subjects, a net change in Ts of 17 degrees C resulted in a net change in the BIA measure of R of 46 ohms or 2.5 ohms per degree C. These changes affected the estimate of FFM(LUK) between CT, NT, and HT, but not the estimate of FFM(GUO) Regarding the two BIA equations for estimating FFM, the Guo equation underestimated FFM(UWW) (P < 0.05) in the CT, NT, and HT, and the Lukaski equation underestimated FFM(UWW) (P < 0.05) only in the CT, compared with that in the UWW technique.
Ambient temperature affects Ts and SKBF which in turn influence the BIA measures of R and Xc, especially in the cold ambient temperature; the Guo BIA equation consistently underestimated FFM of young nonobese Chinese women in all temperatures; and the Lukaski equation closely approximates the FFM in the neutral and hot conditions compared with the FFM(UWW). |
| doi_str_mv | 10.1097/00005768-200001000-00033 |
| format | Article |
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The Lukaski (FFM(LUK)) and Guo (FFM(GUO)) BIA equations for measuring female fat-free mass (FFM) were used. All subjects (N = 20, age = 18-22 yr) underwent the following measurements under three ambient temperatures (T(amb)): Ts and SKBF for the calf, thigh, biceps, and chest; oral temperature (T(OR)); and the BIA measures of resistance (R) and reactance (Xc). The three T(amb) were 17, 25, and 35 degrees C which were considered as cold (CT), neutral (NT), and hot (HT) conditions, respectively. Their underwater weighing (UWW), lung residual volume, and skinfold thickness were measured in the NT. Data were analyzed using repeated measures of ANOVA and Tukey post-hoc test.
We observed that in the CT mean SKBF and Ts decreased (P < 0.05) and R and Xc increased (P < 0.05), compared with those in both NT and HT. However, in the HT both SKBF and Ts increased and R deceased, but Xc remained unchanged relative to the NT. In these subjects, a net change in Ts of 17 degrees C resulted in a net change in the BIA measure of R of 46 ohms or 2.5 ohms per degree C. These changes affected the estimate of FFM(LUK) between CT, NT, and HT, but not the estimate of FFM(GUO) Regarding the two BIA equations for estimating FFM, the Guo equation underestimated FFM(UWW) (P < 0.05) in the CT, NT, and HT, and the Lukaski equation underestimated FFM(UWW) (P < 0.05) only in the CT, compared with that in the UWW technique.
Ambient temperature affects Ts and SKBF which in turn influence the BIA measures of R and Xc, especially in the cold ambient temperature; the Guo BIA equation consistently underestimated FFM of young nonobese Chinese women in all temperatures; and the Lukaski equation closely approximates the FFM in the neutral and hot conditions compared with the FFM(UWW).</description><identifier>ISSN: 0195-9131</identifier><identifier>DOI: 10.1097/00005768-200001000-00033</identifier><identifier>PMID: 10647553</identifier><identifier>CODEN: MSPEDA</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams & Wilkins</publisher><subject>Adipose Tissue ; Adolescent ; Adult ; Analysis of Variance ; Biological and medical sciences ; Body Composition - physiology ; Body Height ; Body Temperature - physiology ; Body Weight ; Cold Temperature ; Electric Impedance ; Female ; Fundamental and applied biological sciences. Psychology ; Hot Temperature ; Humans ; Muscle, Skeletal - anatomy & histology ; Regional Blood Flow - physiology ; Residual Volume ; Skin - blood supply ; Skin Temperature - physiology ; Skinfold Thickness ; Space life sciences ; Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects ; Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><ispartof>Medicine and science in sports and exercise, 2000, Vol.32 (1), p.221-227</ispartof><rights>2000 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c390t-a4cff8a818383f21ac74fc02e2204b1bbeb4b2b154883b8e64d31b3ef5ff6eb53</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1274968$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10647553$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>LIANG, M. T. C</creatorcontrib><creatorcontrib>SU, H.-F</creatorcontrib><creatorcontrib>LEE, N.-Y</creatorcontrib><title>Skin temperature and skin blood flow affect bioelectric impedance study of female fat-free mass</title><title>Medicine and science in sports and exercise</title><addtitle>Med Sci Sports Exerc</addtitle><description>This study examined the effects of skin temperature (Ts) and skin blood flow (SKBF) on bioelectrical impedance (BIA) measurements of body composition in healthy young females.
The Lukaski (FFM(LUK)) and Guo (FFM(GUO)) BIA equations for measuring female fat-free mass (FFM) were used. All subjects (N = 20, age = 18-22 yr) underwent the following measurements under three ambient temperatures (T(amb)): Ts and SKBF for the calf, thigh, biceps, and chest; oral temperature (T(OR)); and the BIA measures of resistance (R) and reactance (Xc). The three T(amb) were 17, 25, and 35 degrees C which were considered as cold (CT), neutral (NT), and hot (HT) conditions, respectively. Their underwater weighing (UWW), lung residual volume, and skinfold thickness were measured in the NT. Data were analyzed using repeated measures of ANOVA and Tukey post-hoc test.
We observed that in the CT mean SKBF and Ts decreased (P < 0.05) and R and Xc increased (P < 0.05), compared with those in both NT and HT. However, in the HT both SKBF and Ts increased and R deceased, but Xc remained unchanged relative to the NT. In these subjects, a net change in Ts of 17 degrees C resulted in a net change in the BIA measure of R of 46 ohms or 2.5 ohms per degree C. These changes affected the estimate of FFM(LUK) between CT, NT, and HT, but not the estimate of FFM(GUO) Regarding the two BIA equations for estimating FFM, the Guo equation underestimated FFM(UWW) (P < 0.05) in the CT, NT, and HT, and the Lukaski equation underestimated FFM(UWW) (P < 0.05) only in the CT, compared with that in the UWW technique.
Ambient temperature affects Ts and SKBF which in turn influence the BIA measures of R and Xc, especially in the cold ambient temperature; the Guo BIA equation consistently underestimated FFM of young nonobese Chinese women in all temperatures; and the Lukaski equation closely approximates the FFM in the neutral and hot conditions compared with the FFM(UWW).</description><subject>Adipose Tissue</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Analysis of Variance</subject><subject>Biological and medical sciences</subject><subject>Body Composition - physiology</subject><subject>Body Height</subject><subject>Body Temperature - physiology</subject><subject>Body Weight</subject><subject>Cold Temperature</subject><subject>Electric Impedance</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hot Temperature</subject><subject>Humans</subject><subject>Muscle, Skeletal - anatomy & histology</subject><subject>Regional Blood Flow - physiology</subject><subject>Residual Volume</subject><subject>Skin - blood supply</subject><subject>Skin Temperature - physiology</subject><subject>Skinfold Thickness</subject><subject>Space life sciences</subject><subject>Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects</subject><subject>Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><issn>0195-9131</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNkE1PwzAMhnMAsTH4CygHxK2QNGmbHtHElzSJA3COktSWCukyklaIf0_Gxocly5b1vrb8EEI5u-Ssba5YjqqpVVFuO56zyCnEAZkz3lZFywWfkeOUXvO4EYIfkRlntWyqSsyJfnrr13SEYQPRjFMEatYdTduh9SF0FH34oAYR3EhtH8DnJvaO9tnRmbUDmsap-6QBKcJgPFA0Y4ERgA4mpRNyiMYnON3XBXm5vXle3herx7uH5fWqcKJlY2GkQ1RGcSWUwJIb10h0rISyZNJya8FKW1peSaWEVVDLTnArACvEGmwlFuRit3cTw_sEadRDnxx4b9YQpqQbpuq2zu8viNoJXQwpRUC9if1g4qfmTG-B6h-g-heo_gaarWf7G5MdoPtn3NHMgvO9wCRnPMbMp09_urKRba3EF9TjgJc</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>LIANG, M. T. C</creator><creator>SU, H.-F</creator><creator>LEE, N.-Y</creator><general>Lippincott Williams & Wilkins</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2000</creationdate><title>Skin temperature and skin blood flow affect bioelectric impedance study of female fat-free mass</title><author>LIANG, M. T. C ; SU, H.-F ; LEE, N.-Y</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c390t-a4cff8a818383f21ac74fc02e2204b1bbeb4b2b154883b8e64d31b3ef5ff6eb53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Adipose Tissue</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Analysis of Variance</topic><topic>Biological and medical sciences</topic><topic>Body Composition - physiology</topic><topic>Body Height</topic><topic>Body Temperature - physiology</topic><topic>Body Weight</topic><topic>Cold Temperature</topic><topic>Electric Impedance</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Hot Temperature</topic><topic>Humans</topic><topic>Muscle, Skeletal - anatomy & histology</topic><topic>Regional Blood Flow - physiology</topic><topic>Residual Volume</topic><topic>Skin - blood supply</topic><topic>Skin Temperature - physiology</topic><topic>Skinfold Thickness</topic><topic>Space life sciences</topic><topic>Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects</topic><topic>Vertebrates: anatomy and physiology, studies on body, several organs or systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LIANG, M. T. C</creatorcontrib><creatorcontrib>SU, H.-F</creatorcontrib><creatorcontrib>LEE, N.-Y</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Medicine and science in sports and exercise</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LIANG, M. T. C</au><au>SU, H.-F</au><au>LEE, N.-Y</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Skin temperature and skin blood flow affect bioelectric impedance study of female fat-free mass</atitle><jtitle>Medicine and science in sports and exercise</jtitle><addtitle>Med Sci Sports Exerc</addtitle><date>2000</date><risdate>2000</risdate><volume>32</volume><issue>1</issue><spage>221</spage><epage>227</epage><pages>221-227</pages><issn>0195-9131</issn><coden>MSPEDA</coden><abstract>This study examined the effects of skin temperature (Ts) and skin blood flow (SKBF) on bioelectrical impedance (BIA) measurements of body composition in healthy young females.
The Lukaski (FFM(LUK)) and Guo (FFM(GUO)) BIA equations for measuring female fat-free mass (FFM) were used. All subjects (N = 20, age = 18-22 yr) underwent the following measurements under three ambient temperatures (T(amb)): Ts and SKBF for the calf, thigh, biceps, and chest; oral temperature (T(OR)); and the BIA measures of resistance (R) and reactance (Xc). The three T(amb) were 17, 25, and 35 degrees C which were considered as cold (CT), neutral (NT), and hot (HT) conditions, respectively. Their underwater weighing (UWW), lung residual volume, and skinfold thickness were measured in the NT. Data were analyzed using repeated measures of ANOVA and Tukey post-hoc test.
We observed that in the CT mean SKBF and Ts decreased (P < 0.05) and R and Xc increased (P < 0.05), compared with those in both NT and HT. However, in the HT both SKBF and Ts increased and R deceased, but Xc remained unchanged relative to the NT. In these subjects, a net change in Ts of 17 degrees C resulted in a net change in the BIA measure of R of 46 ohms or 2.5 ohms per degree C. These changes affected the estimate of FFM(LUK) between CT, NT, and HT, but not the estimate of FFM(GUO) Regarding the two BIA equations for estimating FFM, the Guo equation underestimated FFM(UWW) (P < 0.05) in the CT, NT, and HT, and the Lukaski equation underestimated FFM(UWW) (P < 0.05) only in the CT, compared with that in the UWW technique.
Ambient temperature affects Ts and SKBF which in turn influence the BIA measures of R and Xc, especially in the cold ambient temperature; the Guo BIA equation consistently underestimated FFM of young nonobese Chinese women in all temperatures; and the Lukaski equation closely approximates the FFM in the neutral and hot conditions compared with the FFM(UWW).</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams & Wilkins</pub><pmid>10647553</pmid><doi>10.1097/00005768-200001000-00033</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adipose Tissue Adolescent Adult Analysis of Variance Biological and medical sciences Body Composition - physiology Body Height Body Temperature - physiology Body Weight Cold Temperature Electric Impedance Female Fundamental and applied biological sciences. Psychology Hot Temperature Humans Muscle, Skeletal - anatomy & histology Regional Blood Flow - physiology Residual Volume Skin - blood supply Skin Temperature - physiology Skinfold Thickness Space life sciences Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects Vertebrates: anatomy and physiology, studies on body, several organs or systems |
| title | Skin temperature and skin blood flow affect bioelectric impedance study of female fat-free mass |
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