Riboflavin requirements and exercise adaptation in older women
The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50–67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 µg/kJ (0.6 µg/kcal) and 0.22 µg/kJ (0.9 µg/kcal). Subjects exe...
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| Veröffentlicht in: | The American journal of clinical nutrition 1992-09, Vol.56 (3), p.526-532 |
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| creator | Winters, L R T Yoon, JS Kalkwarf, HJ Davies, JC Berkowitz, MG Haas, J Roe, DA |
| description | The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50–67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 µg/kJ (0.6 µg/kcal) and 0.22 µg/kJ (0.9 µg/kcal). Subjects exercised 20–25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75–85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (V̇O2max) and anaerobic threshold by gas exchange (ATGe). Exercise significantly affected riboflavin status as EGRAC increased (P < 0.001) and riboflavin excretion decreased (P < 0.01) in both groups. V̇O2max increased significantly with exercise (P < 0.01). However, changes in V̇O2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance. |
| doi_str_mv | 10.1093/ajcn/56.3.526 |
| format | Article |
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Subjects exercised 20–25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75–85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (V̇O2max) and anaerobic threshold by gas exchange (ATGe). Exercise significantly affected riboflavin status as EGRAC increased (P < 0.001) and riboflavin excretion decreased (P < 0.01) in both groups. V̇O2max increased significantly with exercise (P < 0.01). However, changes in V̇O2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance.</description><identifier>ISSN: 0002-9165</identifier><identifier>EISSN: 1938-3207</identifier><identifier>DOI: 10.1093/ajcn/56.3.526</identifier><identifier>PMID: 1503064</identifier><identifier>CODEN: AJCNAC</identifier><language>eng</language><publisher>Bethesda, MD: Elsevier Inc</publisher><subject>actividad fisica ; activite physique ; Aged ; anaerobic threshold ; Anaerobic Threshold - physiology ; besoin nutritionnel ; Biological and medical sciences ; Body Composition ; consommation d' oxygene ; consumo de oxigeno ; elderly ; Energy Intake ; eritrocitos ; erythrocyte ; erythrocyte glutathione reductase ; erythrocytes ; Erythrocytes - enzymology ; exercise ; Exercise - physiology ; Female ; femme ; Glutathione Reductase - analysis ; Human physiology applied to population studies and life conditions. Human ecophysiology ; Humans ; maximal oxygen ; Medical sciences ; Middle Aged ; mujeres ; necesidades de nutrientes ; nutrient requirements ; Nutritional Requirements ; Nutritional survey. Food supply and nutritional requirement ; older women ; orina ; oxidoreductases ; oxidorreductasas ; oxydoreductase ; oxygen consumption ; Oxygen Consumption - physiology ; personne agee ; physical activity ; Riboflavin ; Riboflavin - administration & dosage ; Riboflavin - urine ; riboflavina ; riboflavine ; tercera edad ; uptake ; urine ; vitaminas ; vitamine ; vitamins ; Weight Loss - physiology ; women</subject><ispartof>The American journal of clinical nutrition, 1992-09, Vol.56 (3), p.526-532</ispartof><rights>1992 American Society for Nutrition.</rights><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c427t-45aebfb7b13456da1fa93e0efb1b98046d9fc9d664c75324edadd7b888ec5dab3</citedby><cites>FETCH-LOGICAL-c427t-45aebfb7b13456da1fa93e0efb1b98046d9fc9d664c75324edadd7b888ec5dab3</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=4325639$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1503064$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Winters, L R T</creatorcontrib><creatorcontrib>Yoon, JS</creatorcontrib><creatorcontrib>Kalkwarf, HJ</creatorcontrib><creatorcontrib>Davies, JC</creatorcontrib><creatorcontrib>Berkowitz, MG</creatorcontrib><creatorcontrib>Haas, J</creatorcontrib><creatorcontrib>Roe, DA</creatorcontrib><title>Riboflavin requirements and exercise adaptation in older women</title><title>The American journal of clinical nutrition</title><addtitle>Am J Clin Nutr</addtitle><description>The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50–67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 µg/kJ (0.6 µg/kcal) and 0.22 µg/kJ (0.9 µg/kcal). Subjects exercised 20–25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75–85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (V̇O2max) and anaerobic threshold by gas exchange (ATGe). Exercise significantly affected riboflavin status as EGRAC increased (P < 0.001) and riboflavin excretion decreased (P < 0.01) in both groups. V̇O2max increased significantly with exercise (P < 0.01). However, changes in V̇O2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance.</description><subject>actividad fisica</subject><subject>activite physique</subject><subject>Aged</subject><subject>anaerobic threshold</subject><subject>Anaerobic Threshold - physiology</subject><subject>besoin nutritionnel</subject><subject>Biological and medical sciences</subject><subject>Body Composition</subject><subject>consommation d' oxygene</subject><subject>consumo de oxigeno</subject><subject>elderly</subject><subject>Energy Intake</subject><subject>eritrocitos</subject><subject>erythrocyte</subject><subject>erythrocyte glutathione reductase</subject><subject>erythrocytes</subject><subject>Erythrocytes - enzymology</subject><subject>exercise</subject><subject>Exercise - physiology</subject><subject>Female</subject><subject>femme</subject><subject>Glutathione Reductase - analysis</subject><subject>Human physiology applied to population studies and life conditions. Human ecophysiology</subject><subject>Humans</subject><subject>maximal oxygen</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>mujeres</subject><subject>necesidades de nutrientes</subject><subject>nutrient requirements</subject><subject>Nutritional Requirements</subject><subject>Nutritional survey. Food supply and nutritional requirement</subject><subject>older women</subject><subject>orina</subject><subject>oxidoreductases</subject><subject>oxidorreductasas</subject><subject>oxydoreductase</subject><subject>oxygen consumption</subject><subject>Oxygen Consumption - physiology</subject><subject>personne agee</subject><subject>physical activity</subject><subject>Riboflavin</subject><subject>Riboflavin - administration & dosage</subject><subject>Riboflavin - urine</subject><subject>riboflavina</subject><subject>riboflavine</subject><subject>tercera edad</subject><subject>uptake</subject><subject>urine</subject><subject>vitaminas</subject><subject>vitamine</subject><subject>vitamins</subject><subject>Weight Loss - physiology</subject><subject>women</subject><issn>0002-9165</issn><issn>1938-3207</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp10c9LHDEUwPEgim7VY4-VOZTeZk0mP2ZyEUT6CwSh1XN4SV5KZHayJrO2_vdGZmlPPeXwPjwe3xDyntE1o5pfwqObLqVa87Xs1AFZMc2Hlne0PyQrSmnXaqbkCXlXyiOlrBODOibHTFJOlViRqx_RpjDCc5yajE-7mHGD01wamHyDfzC7WLABD9sZ5pimpro0eszN71ThGTkKMBY837-n5OHL5_ubb-3t3dfvN9e3rRNdP7dCAtpge8u4kMoDC6A5UgyWWT1QobwOTnulhOsl7wR68L63wzCgkx4sPyWflr3bnJ52WGazicXhOMKEaVdMz1nH5SAqbBfociolYzDbHDeQXwyj5q2XeetlpDLc1F7Vf9gv3tkN-n96CVTnH_dzKA7GkGGqRf4ywTupuK7sYmEBkoFfuZKHn0xrTmn9CjlU0C8Aa6XniNkUF3Fy6GtxNxuf4n8ufAVW45BW</recordid><startdate>19920901</startdate><enddate>19920901</enddate><creator>Winters, L R T</creator><creator>Yoon, JS</creator><creator>Kalkwarf, HJ</creator><creator>Davies, JC</creator><creator>Berkowitz, MG</creator><creator>Haas, J</creator><creator>Roe, DA</creator><general>Elsevier Inc</general><general>American Society for Clinical Nutrition</general><scope>FBQ</scope><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>19920901</creationdate><title>Riboflavin requirements and exercise adaptation in older women</title><author>Winters, L R T ; Yoon, JS ; Kalkwarf, HJ ; Davies, JC ; Berkowitz, MG ; Haas, J ; Roe, DA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-45aebfb7b13456da1fa93e0efb1b98046d9fc9d664c75324edadd7b888ec5dab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>actividad fisica</topic><topic>activite physique</topic><topic>Aged</topic><topic>anaerobic threshold</topic><topic>Anaerobic Threshold - physiology</topic><topic>besoin nutritionnel</topic><topic>Biological and medical sciences</topic><topic>Body Composition</topic><topic>consommation d' oxygene</topic><topic>consumo de oxigeno</topic><topic>elderly</topic><topic>Energy Intake</topic><topic>eritrocitos</topic><topic>erythrocyte</topic><topic>erythrocyte glutathione reductase</topic><topic>erythrocytes</topic><topic>Erythrocytes - enzymology</topic><topic>exercise</topic><topic>Exercise - physiology</topic><topic>Female</topic><topic>femme</topic><topic>Glutathione Reductase - analysis</topic><topic>Human physiology applied to population studies and life conditions. Human ecophysiology</topic><topic>Humans</topic><topic>maximal oxygen</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>mujeres</topic><topic>necesidades de nutrientes</topic><topic>nutrient requirements</topic><topic>Nutritional Requirements</topic><topic>Nutritional survey. Food supply and nutritional requirement</topic><topic>older women</topic><topic>orina</topic><topic>oxidoreductases</topic><topic>oxidorreductasas</topic><topic>oxydoreductase</topic><topic>oxygen consumption</topic><topic>Oxygen Consumption - physiology</topic><topic>personne agee</topic><topic>physical activity</topic><topic>Riboflavin</topic><topic>Riboflavin - administration & dosage</topic><topic>Riboflavin - urine</topic><topic>riboflavina</topic><topic>riboflavine</topic><topic>tercera edad</topic><topic>uptake</topic><topic>urine</topic><topic>vitaminas</topic><topic>vitamine</topic><topic>vitamins</topic><topic>Weight Loss - physiology</topic><topic>women</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Winters, L R T</creatorcontrib><creatorcontrib>Yoon, JS</creatorcontrib><creatorcontrib>Kalkwarf, HJ</creatorcontrib><creatorcontrib>Davies, JC</creatorcontrib><creatorcontrib>Berkowitz, MG</creatorcontrib><creatorcontrib>Haas, J</creatorcontrib><creatorcontrib>Roe, DA</creatorcontrib><collection>AGRIS</collection><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>The American journal of clinical nutrition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Winters, L R T</au><au>Yoon, JS</au><au>Kalkwarf, HJ</au><au>Davies, JC</au><au>Berkowitz, MG</au><au>Haas, J</au><au>Roe, DA</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Riboflavin requirements and exercise adaptation in older women</atitle><jtitle>The American journal of clinical nutrition</jtitle><addtitle>Am J Clin Nutr</addtitle><date>1992-09-01</date><risdate>1992</risdate><volume>56</volume><issue>3</issue><spage>526</spage><epage>532</epage><pages>526-532</pages><issn>0002-9165</issn><eissn>1938-3207</eissn><coden>AJCNAC</coden><abstract>The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50–67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 µg/kJ (0.6 µg/kcal) and 0.22 µg/kJ (0.9 µg/kcal). Subjects exercised 20–25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75–85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (V̇O2max) and anaerobic threshold by gas exchange (ATGe). Exercise significantly affected riboflavin status as EGRAC increased (P < 0.001) and riboflavin excretion decreased (P < 0.01) in both groups. V̇O2max increased significantly with exercise (P < 0.01). However, changes in V̇O2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance.</abstract><cop>Bethesda, MD</cop><pub>Elsevier Inc</pub><pmid>1503064</pmid><doi>10.1093/ajcn/56.3.526</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | actividad fisica activite physique Aged anaerobic threshold Anaerobic Threshold - physiology besoin nutritionnel Biological and medical sciences Body Composition consommation d' oxygene consumo de oxigeno elderly Energy Intake eritrocitos erythrocyte erythrocyte glutathione reductase erythrocytes Erythrocytes - enzymology exercise Exercise - physiology Female femme Glutathione Reductase - analysis Human physiology applied to population studies and life conditions. Human ecophysiology Humans maximal oxygen Medical sciences Middle Aged mujeres necesidades de nutrientes nutrient requirements Nutritional Requirements Nutritional survey. Food supply and nutritional requirement older women orina oxidoreductases oxidorreductasas oxydoreductase oxygen consumption Oxygen Consumption - physiology personne agee physical activity Riboflavin Riboflavin - administration & dosage Riboflavin - urine riboflavina riboflavine tercera edad uptake urine vitaminas vitamine vitamins Weight Loss - physiology women |
| title | Riboflavin requirements and exercise adaptation in older women |
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