Estimation of energy requirements in a controlled feeding trial
Estimating energy requirements is a frequent task in clinical studies. We examined weight patterns of participants enrolled in a clinical trial and evaluated factors that may affect weight stabilization. The Harris-Benedict equation and the FAO/WHO equation, used in conjunction with physical activit...
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| Veröffentlicht in: | The American journal of clinical nutrition 2003-03, Vol.77 (3), p.639-645 |
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| container_title | The American journal of clinical nutrition |
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| creator | LIN, Pao-Hwa PROSCHAN, Michael A BRAY, George A FERNANDEZ, Claudia P HOBEN, Kimberly MOST-WINDHAUSER, Marlene KARANJA, Njeri OBARZANEK, Eva |
| description | Estimating energy requirements is a frequent task in clinical studies.
We examined weight patterns of participants enrolled in a clinical trial and evaluated factors that may affect weight stabilization. The Harris-Benedict equation and the FAO/WHO equation, used in conjunction with physical activity levels estimated with the 7-d Physical Activity Recall, were compared for estimating energy expenditure.
This was a multicenter, randomized controlled feeding trial with participants of the Dietary Approaches to Stop Hypertension Trial. For 11 wk, the amount of food participants received was adjusted to maintain their body weights as close to their initial weights as possible. Change-point regression techniques were used to identify weight-stable periods. Factors related to achieving weight stabilization were examined with logistic regression.
A stable weight was achieved by 86% of the 448 participants during the run-in period and by 78% during the intervention period. Energy intake averaged 11 +/- 2.4 MJ/d (2628 +/- 578 kcal/d), with most participants (n = 270) requiring 9-13 MJ/d (2100-3100 kcal/d). The difference between predicted and observed intakes was highest at high estimated energy intakes, mainly because of high and probably incorrect estimates of the activity factor. Participants with lower energy intakes tended to need less adjustment of their energy intakes to maintain a stable weight than did participants with higher energy intakes.
Weight stabilization is not affected by diet composition, sex, race, age, or baseline weight. Either the Harris-Benedict equation or the FAO/WHO equation can be used to estimate energy needs. Activity factors > 1.7 often lead to overestimation of energy needs. |
| doi_str_mv | 10.1093/ajcn/77.3.639 |
| format | Article |
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We examined weight patterns of participants enrolled in a clinical trial and evaluated factors that may affect weight stabilization. The Harris-Benedict equation and the FAO/WHO equation, used in conjunction with physical activity levels estimated with the 7-d Physical Activity Recall, were compared for estimating energy expenditure.
This was a multicenter, randomized controlled feeding trial with participants of the Dietary Approaches to Stop Hypertension Trial. For 11 wk, the amount of food participants received was adjusted to maintain their body weights as close to their initial weights as possible. Change-point regression techniques were used to identify weight-stable periods. Factors related to achieving weight stabilization were examined with logistic regression.
A stable weight was achieved by 86% of the 448 participants during the run-in period and by 78% during the intervention period. Energy intake averaged 11 +/- 2.4 MJ/d (2628 +/- 578 kcal/d), with most participants (n = 270) requiring 9-13 MJ/d (2100-3100 kcal/d). The difference between predicted and observed intakes was highest at high estimated energy intakes, mainly because of high and probably incorrect estimates of the activity factor. Participants with lower energy intakes tended to need less adjustment of their energy intakes to maintain a stable weight than did participants with higher energy intakes.
Weight stabilization is not affected by diet composition, sex, race, age, or baseline weight. Either the Harris-Benedict equation or the FAO/WHO equation can be used to estimate energy needs. Activity factors > 1.7 often lead to overestimation of energy needs.</description><identifier>ISSN: 0002-9165</identifier><identifier>EISSN: 1938-3207</identifier><identifier>DOI: 10.1093/ajcn/77.3.639</identifier><identifier>PMID: 12600854</identifier><identifier>CODEN: AJCNAC</identifier><language>eng</language><publisher>Bethesda, MD: American Society for Clinical Nutrition</publisher><subject>Adolescent ; Adult ; Basal Metabolism - physiology ; Biological and medical sciences ; Body Weight - physiology ; Clinical trials ; Cohort Studies ; Diet ; Energy ; Energy Intake - physiology ; Energy Metabolism - physiology ; Exercise - physiology ; Feeding. Feeding behavior ; Female ; Fundamental and applied biological sciences. Psychology ; Humans ; Male ; Middle Aged ; Nutritional Requirements ; Regression Analysis ; Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><ispartof>The American journal of clinical nutrition, 2003-03, Vol.77 (3), p.639-645</ispartof><rights>2003 INIST-CNRS</rights><rights>Copyright American Society for Clinical Nutrition, Inc. Mar 2003</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-3580fdcb0cc2a2987988d4b4b51200b3b79b696e37790d193c00bc8a473c4b273</citedby><cites>FETCH-LOGICAL-c385t-3580fdcb0cc2a2987988d4b4b51200b3b79b696e37790d193c00bc8a473c4b273</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14629356$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12600854$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>LIN, Pao-Hwa</creatorcontrib><creatorcontrib>PROSCHAN, Michael A</creatorcontrib><creatorcontrib>BRAY, George A</creatorcontrib><creatorcontrib>FERNANDEZ, Claudia P</creatorcontrib><creatorcontrib>HOBEN, Kimberly</creatorcontrib><creatorcontrib>MOST-WINDHAUSER, Marlene</creatorcontrib><creatorcontrib>KARANJA, Njeri</creatorcontrib><creatorcontrib>OBARZANEK, Eva</creatorcontrib><creatorcontrib>DASH Collaborative Research Group</creatorcontrib><title>Estimation of energy requirements in a controlled feeding trial</title><title>The American journal of clinical nutrition</title><addtitle>Am J Clin Nutr</addtitle><description>Estimating energy requirements is a frequent task in clinical studies.
We examined weight patterns of participants enrolled in a clinical trial and evaluated factors that may affect weight stabilization. The Harris-Benedict equation and the FAO/WHO equation, used in conjunction with physical activity levels estimated with the 7-d Physical Activity Recall, were compared for estimating energy expenditure.
This was a multicenter, randomized controlled feeding trial with participants of the Dietary Approaches to Stop Hypertension Trial. For 11 wk, the amount of food participants received was adjusted to maintain their body weights as close to their initial weights as possible. Change-point regression techniques were used to identify weight-stable periods. Factors related to achieving weight stabilization were examined with logistic regression.
A stable weight was achieved by 86% of the 448 participants during the run-in period and by 78% during the intervention period. Energy intake averaged 11 +/- 2.4 MJ/d (2628 +/- 578 kcal/d), with most participants (n = 270) requiring 9-13 MJ/d (2100-3100 kcal/d). The difference between predicted and observed intakes was highest at high estimated energy intakes, mainly because of high and probably incorrect estimates of the activity factor. Participants with lower energy intakes tended to need less adjustment of their energy intakes to maintain a stable weight than did participants with higher energy intakes.
Weight stabilization is not affected by diet composition, sex, race, age, or baseline weight. Either the Harris-Benedict equation or the FAO/WHO equation can be used to estimate energy needs. Activity factors > 1.7 often lead to overestimation of energy needs.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Basal Metabolism - physiology</subject><subject>Biological and medical sciences</subject><subject>Body Weight - physiology</subject><subject>Clinical trials</subject><subject>Cohort Studies</subject><subject>Diet</subject><subject>Energy</subject><subject>Energy Intake - physiology</subject><subject>Energy Metabolism - physiology</subject><subject>Exercise - physiology</subject><subject>Feeding. Feeding behavior</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Nutritional Requirements</subject><subject>Regression Analysis</subject><subject>Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><issn>0002-9165</issn><issn>1938-3207</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpd0EtLxDAQwPEgirs-jl6lCHrr7iST5nESEV8geNFzSNNUurSpJu3Bb28WFxY8BYYfw-RPyAWFFQWNa7txYS3lClcC9QFZUo2qRAbykCwBgJWaimpBTlLaAFDGlTgmC8oEgKr4ktw-pKkb7NSNoRjbwgcfP3-K6L_nLvrBhykVXShs4cYwxbHvfVO03jdd-Cym2Nn-jBy1tk_-fPeeko_Hh_f75_L17enl_u61dKiqqcRKQdu4GpxjlmkltVINr3ldUQZQYy11LbTwKKWGJv_B5alTlkt0vGYST8nN396vOH7PPk1m6JLzfW-DH-dkJAIXKKoMr_7BzTjHkG8zDKmuqJAso_IPuTimFH1rvmKuEH8MBbPNarZZjZQGTc6a_eVu6VwPvtnrXccMrnfAJmf7NtrgurR3XDCNlcBfyTR-7w</recordid><startdate>20030301</startdate><enddate>20030301</enddate><creator>LIN, Pao-Hwa</creator><creator>PROSCHAN, Michael A</creator><creator>BRAY, George A</creator><creator>FERNANDEZ, Claudia P</creator><creator>HOBEN, Kimberly</creator><creator>MOST-WINDHAUSER, Marlene</creator><creator>KARANJA, Njeri</creator><creator>OBARZANEK, Eva</creator><general>American Society for Clinical Nutrition</general><general>American Society for Clinical Nutrition, Inc</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>7QP</scope><scope>7T7</scope><scope>7TS</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20030301</creationdate><title>Estimation of energy requirements in a controlled feeding trial</title><author>LIN, Pao-Hwa ; PROSCHAN, Michael A ; BRAY, George A ; FERNANDEZ, Claudia P ; HOBEN, Kimberly ; MOST-WINDHAUSER, Marlene ; KARANJA, Njeri ; OBARZANEK, Eva</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-3580fdcb0cc2a2987988d4b4b51200b3b79b696e37790d193c00bc8a473c4b273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Basal Metabolism - physiology</topic><topic>Biological and medical sciences</topic><topic>Body Weight - physiology</topic><topic>Clinical trials</topic><topic>Cohort Studies</topic><topic>Diet</topic><topic>Energy</topic><topic>Energy Intake - physiology</topic><topic>Energy Metabolism - physiology</topic><topic>Exercise - physiology</topic><topic>Feeding. Feeding behavior</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Nutritional Requirements</topic><topic>Regression Analysis</topic><topic>Vertebrates: anatomy and physiology, studies on body, several organs or systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LIN, Pao-Hwa</creatorcontrib><creatorcontrib>PROSCHAN, Michael A</creatorcontrib><creatorcontrib>BRAY, George A</creatorcontrib><creatorcontrib>FERNANDEZ, Claudia P</creatorcontrib><creatorcontrib>HOBEN, Kimberly</creatorcontrib><creatorcontrib>MOST-WINDHAUSER, Marlene</creatorcontrib><creatorcontrib>KARANJA, Njeri</creatorcontrib><creatorcontrib>OBARZANEK, Eva</creatorcontrib><creatorcontrib>DASH Collaborative Research Group</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>Calcium & Calcified Tissue Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Physical Education Index</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>The American journal of clinical nutrition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LIN, Pao-Hwa</au><au>PROSCHAN, Michael A</au><au>BRAY, George A</au><au>FERNANDEZ, Claudia P</au><au>HOBEN, Kimberly</au><au>MOST-WINDHAUSER, Marlene</au><au>KARANJA, Njeri</au><au>OBARZANEK, Eva</au><aucorp>DASH Collaborative Research Group</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Estimation of energy requirements in a controlled feeding trial</atitle><jtitle>The American journal of clinical nutrition</jtitle><addtitle>Am J Clin Nutr</addtitle><date>2003-03-01</date><risdate>2003</risdate><volume>77</volume><issue>3</issue><spage>639</spage><epage>645</epage><pages>639-645</pages><issn>0002-9165</issn><eissn>1938-3207</eissn><coden>AJCNAC</coden><abstract>Estimating energy requirements is a frequent task in clinical studies.
We examined weight patterns of participants enrolled in a clinical trial and evaluated factors that may affect weight stabilization. The Harris-Benedict equation and the FAO/WHO equation, used in conjunction with physical activity levels estimated with the 7-d Physical Activity Recall, were compared for estimating energy expenditure.
This was a multicenter, randomized controlled feeding trial with participants of the Dietary Approaches to Stop Hypertension Trial. For 11 wk, the amount of food participants received was adjusted to maintain their body weights as close to their initial weights as possible. Change-point regression techniques were used to identify weight-stable periods. Factors related to achieving weight stabilization were examined with logistic regression.
A stable weight was achieved by 86% of the 448 participants during the run-in period and by 78% during the intervention period. Energy intake averaged 11 +/- 2.4 MJ/d (2628 +/- 578 kcal/d), with most participants (n = 270) requiring 9-13 MJ/d (2100-3100 kcal/d). The difference between predicted and observed intakes was highest at high estimated energy intakes, mainly because of high and probably incorrect estimates of the activity factor. Participants with lower energy intakes tended to need less adjustment of their energy intakes to maintain a stable weight than did participants with higher energy intakes.
Weight stabilization is not affected by diet composition, sex, race, age, or baseline weight. Either the Harris-Benedict equation or the FAO/WHO equation can be used to estimate energy needs. Activity factors > 1.7 often lead to overestimation of energy needs.</abstract><cop>Bethesda, MD</cop><pub>American Society for Clinical Nutrition</pub><pmid>12600854</pmid><doi>10.1093/ajcn/77.3.639</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | The American journal of clinical nutrition, 2003-03, Vol.77 (3), p.639-645 |
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| subjects | Adolescent Adult Basal Metabolism - physiology Biological and medical sciences Body Weight - physiology Clinical trials Cohort Studies Diet Energy Energy Intake - physiology Energy Metabolism - physiology Exercise - physiology Feeding. Feeding behavior Female Fundamental and applied biological sciences. Psychology Humans Male Middle Aged Nutritional Requirements Regression Analysis Vertebrates: anatomy and physiology, studies on body, several organs or systems |
| title | Estimation of energy requirements in a controlled feeding trial |
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