Satiety, but not total PYY, Is increased with continuous and intermittent exercise.
Satiety, but not total PYY, Is increased with continuous and intermittent exercise.
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DOI:
10.1002/oby.20335
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发表时间:
2013-10
期刊:
影响因子:
--
通讯作者:
Kanaley JA
中科院分区:
文献类型:
--
作者:
Holmstrup ME;Fairchild TJ;Keslacy S;Weinstock RS;Kanaley JA
This study determined the hormonal and subjective appetite responses to exercise (1-h continuous v. intermittent exercise throughout the day) in obese individuals. Eleven obese subjects (>30 kg/m2) underwent 3, 12-hour study days: control condition (sedentary behavior-SED), continuous exercise condition ((EX) 1-h exercise), and intermittent exercise condition ((INT) 12 hourly, 5-minute bouts). Blood samples (every 10 min) were measured for serum insulin and total peptide YY (PYY) concentrations, with ratings of appetite (visual analog scale-VAS: every 20 minutes). Both total area under the curve (AUC), 2-h AUC and AUC above baseline, and subjective appetite ratings were calculated. No differences were observed in total PYY AUC between conditions, but hunger was reduced with INT (INT<EX; P<0.05), and satiety was increased with both SED and INT conditions (INT>EX and SED>EX; P<0.05). A correlation existed between the change in total PYY and insulin levels (r=−0.81; P<0.05), and total PYY and satiety (r=0.80; P<0.05) with the EX condition, not the SED and INT conditions. The total PYY response to meals is not altered over the course of a 12-h day with either intermittent or continuous exercise; however, intermittent exercise increased satiety and reduced hunger to a greater extent than continuous exercise in obese individuals.
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