Effect of Postural Changes on Resting Metabolic Rate and Substrate Utilization

• DOI: 10.5152/tjsm.2018.103
• Publication Date: 2018-09-04T11:29:13Z
• Authors: Tahir Hazir; Gokhan Denizli; ; Suleyman Ulupinar; ; Nihat Ozgoren; ; Mustafa Can Eser; ; Funda Busra Duman...; ; Ayse Kin İsler
• Keywords: Resting Heart Rate

Objective: While supine position is the classical method to measure resting metabolic rate (RMR), effects of postural changes on RMR not clear. The aim this study examine effect and substrate utilization. Material Methods: was measured in 23 sedentary male subjects (age: 26.7±5.8 yr) after an overnight fast for 10 min random order supine, sitting standing positions. An automated gas analysis system used oxygen consumption (VO2), carbon dioxide production (VCO2), minute ventilation (VE), heart (HR) determine RMR. calculated with Weir's formula, whereas rates carbohydrate (CHO) free fatty acid (FFA) utilization were Frayn's formula. One way ANOVA Bonferroni post hoc test calculate variables, one sample t-Test identify difference between VO2 1 MET levels. Results: values positions similar, both which significantly lower than those (p<0.01). Both VE HR all three different levels (3.5 ml.kg-1. min-1) (p<0.01), while similar (p>0.05). Rate CHO utilizationwas positions, position, higher Conversely, FFA lowest highest position. Conclusion: Findings indicated that change affected activity cardio-pulmonary system. In addition, has shifted from accordance changes.