{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/86361"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/86361","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The Effect of Moderate Physical Activity on Resting Fat Oxidation","abstract":"The purpose of the study was to investigate the effect of moderate physical activity (following the CDC/ACSM recommendation) on the resting level of fat oxidation. It was hypothesized that a 30-minute treadmill walk at 50% VO 2peak performed in late afternoon would not increase fat oxidation the following morning (12 hours after the end of the treadmill walk). It was also hypothesized that a 60-minute treadmill walk at 50% VO2peak performed in the late afternoon will increase fat oxidation the following morning (12 hours after the end of the treadmill walk). Twenty healthy sedentary women (age 30--47) walked for 30 and 60 minutes on a treadmill at about 50% VO2peak. The respiratory quotient (RQ) was measured first thing in the morning on three occasions: following a day without physical activity (baseline), following a day with a 30-minute walk, and following a day with a 60-minute walk. RQ significantly decreased from .81 at baseline to .79 after the 30-minute walk and to .78 after the 60-minute walk. The RQ difference between the 30- and 60-minute walks was not significant. In 7 participants, RQ did not decrease after the walks; those non-responders had a lower baseline RQ than the other participants. Of the study variables, only caloric intake was positively and significantly associated with RQ. The results indicate that a 30-minute bout of moderate activity is sufficient to significantly increase resting fat oxidation and supports the recommendation of the CDC/ACSM.","abstract_html":"The purpose of the study was to investigate the effect of moderate physical activity (following the CDC/ACSM recommendation) on the resting level of fat oxidation. It was hypothesized that a 30-minute treadmill walk at 50% VO 2peak performed in late afternoon would not increase fat oxidation the following morning (12 hours after the end of the treadmill walk). It was also hypothesized that a 60-minute treadmill walk at 50% VO2peak performed in the late afternoon will increase fat oxidation the following morning (12 hours after the end of the treadmill walk). Twenty healthy sedentary women (age 30--47) walked for 30 and 60 minutes on a treadmill at about 50% VO2peak. The respiratory quotient (RQ) was measured first thing in the morning on three occasions: following a day without physical activity (baseline), following a day with a 30-minute walk, and following a day with a 60-minute walk. RQ significantly decreased from .81 at baseline to .79 after the 30-minute walk and to .78 after the 60-minute walk. The RQ difference between the 30- and 60-minute walks was not significant. In 7 participants, RQ did not decrease after the walks; those non-responders had a lower baseline RQ than the other participants. Of the study variables, only caloric intake was positively and significantly associated with RQ. The results indicate that a 30-minute bout of moderate activity is sufficient to significantly increase resting fat oxidation and supports the recommendation of the CDC/ACSM.","abstract_has_math":false,"creators":["Copay, Anne Ghislaine"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Kinesiology and Community Health","degree_department":null,"school":null,"contributors":["Richard A. Washburn"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T15:04:17Z","date_published":"2015-09-28T15:04:17Z","updated_at":"2026-07-22T22:26:27Z","subjects":["Biology, Animal Physiology"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3070281"],"render_values":[{"text":"(MiAaPQ)AAI3070281","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/86361","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Richard A. 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It was hypothesized that a 30-minute treadmill walk at 50% VO 2peak performed in late afternoon would not increase fat oxidation the following morning (12 hours after the end of the treadmill walk). It was also hypothesized that a 60-minute treadmill walk at 50% VO2peak performed in the late afternoon will increase fat oxidation the following morning (12 hours after the end of the treadmill walk). Twenty healthy sedentary women (age 30--47) walked for 30 and 60 minutes on a treadmill at about 50% VO2peak. The respiratory quotient (RQ) was measured first thing in the morning on three occasions: following a day without physical activity (baseline), following a day with a 30-minute walk, and following a day with a 60-minute walk. RQ significantly decreased from .81 at baseline to .79 after the 30-minute walk and to .78 after the 60-minute walk. The RQ difference between the 30- and 60-minute walks was not significant. In 7 participants, RQ did not decrease after the walks; those non-responders had a lower baseline RQ than the other participants. Of the study variables, only caloric intake was positively and significantly associated with RQ. The results indicate that a 30-minute bout of moderate activity is sufficient to significantly increase resting fat oxidation and supports the recommendation of the CDC/ACSM.","Made available in DSpace on 2015-09-28T15:04:17Z (GMT). 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It was hypothesized that a 30-minute treadmill walk at 50% VO 2peak performed in late afternoon would not increase fat oxidation the following morning (12 hours after the end of the treadmill walk). It was also hypothesized that a 60-minute treadmill walk at 50% VO2peak performed in the late afternoon will increase fat oxidation the following morning (12 hours after the end of the treadmill walk). Twenty healthy sedentary women (age 30--47) walked for 30 and 60 minutes on a treadmill at about 50% VO2peak. The respiratory quotient (RQ) was measured first thing in the morning on three occasions: following a day without physical activity (baseline), following a day with a 30-minute walk, and following a day with a 60-minute walk. RQ significantly decreased from .81 at baseline to .79 after the 30-minute walk and to .78 after the 60-minute walk. The RQ difference between the 30- and 60-minute walks was not significant. In 7 participants, RQ did not decrease after the walks; those non-responders had a lower baseline RQ than the other participants. Of the study variables, only caloric intake was positively and significantly associated with RQ. The results indicate that a 30-minute bout of moderate activity is sufficient to significantly increase resting fat oxidation and supports the recommendation of the CDC/ACSM.","Made available in DSpace on 2015-09-28T15:04:17Z (GMT). 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