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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"Indirect calorimetry"”.
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VALIDATION OF IMPROVED HARDWARE AND SOFTWARE FOR EXPIRED GAS ANALYSIS INDIRECT CALORIMETRY
… in commercial systems of expired gas analysis indirect calorimetry (EGAIC), this system provides enhanced accuracy and validity.
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Nightmare Runner: A Personalized Avatar and Physical Activity Game
… There are two main types of methods used in calorimetry, direct and indirect. Direct calorimetry involves the measurement of actual heat transfer of the subject, which is infeasible in most situations. Indirect calorimetry, however, involves measuring secondary variables, like oxygen …
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Caloric requirements in the hemodialysis subject
… Resting energy expenditure (REE) was measured by indirect calorimetry in 17 male hemodialysis subjects whose mean age was 55 years at the Veterans Administration Medical Center in Hampton, Va. The Beckman MMC Horizon System, a portable device which permits the determination of heat production from …
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A comparison of resting metabolic rates among cardiovascular fit, muscularly fit, and sedentary men
… rates than Sed (n = 10). RMR was measured by indirect calorimetry for 20 minutes in a fasted and resting condition. Expressed per kilogram of body weight, the mean RMR for CV was 3.205 {dollar}\pm{dollar} 0.357 ml/kg min, while those of WT and Sed were 3.032 {dollar}\pm{dollar} 0.481 and 3.005 …
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Energy Expenditure in Critically Ill Children
… cohort of critically ill children with indirect calorimetry measurements and clinical data to support the development and initial validation of an equation that predicts energy expenditure. This thesis achieved its intended aims and the work provides the foundation for the development of …
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Dietary energy utilization in swine
… determined by the difference method using indirect calorimetry would be similar to the value predicted using prediction equations. Moreover, the difference and regression methods did not give different net energy values for the ingredient; therefore both methods can be used for determining …
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The Relationship between Resting Metabolic Rate and Cardiovascular Risk Factors in the Obesity
… samples were evaluated. RMR was measured by indirect calorimetry. RESULTS: As body mass index(BMI) increased, hs-CRP got higher(p=0.004). But, RMR per kilogram(p<0.000) decreased as BMI increased. RMR had significant correlation to height(p=0.041), weight(p<0.000), fat free mass(p=0.001), …
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Evaluation of resting energy expenditure in sarcoma patients with localized disease
… area. Resting energy expenditure was measured by indirect calorimetry in an enclosed plexiglass hood and compared to predicted resting energy expenditure as determined by the Harris and Benedict formulae. Measured resting energy expenditure per unit body surface area was significantly increased in …
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What goes down need not go back up: decreasing the biological drive toward weight regain by increasing energy flux
… stabilized at this weight for 3 weeks. RMR via indirect calorimetry, and hunger via visual analog scale were then examined during two 4-day conditions of energy balance in random order--Low Flux (LF): sedentary with energy intake (EI)=RMR x1.35; and HF: daily exercise net energy cost of ~500 …
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DIETARY OBESITY, EXERCISE TRAINING, AND THERMOGENESIS IN RATS
… 2 hours/day.</p><p>Thermogenesis was measured by indirect calorimetry while animals were in chambers connected to a closed-loop system. Changes in aerobic capacity were not measured directly but were inferred from changes in an enzyme in muscles known to increase with aerobic training, citrate …
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The Effects of High Intensity Intermittent Exercise in Normobaric Hypoxia on Aerobic Capacity and Body Composition in Overweight and Obese Sedentary Adults
… were estimated via VO<sub>2</sub> assessment and indirect calorimetry. All variables were statistically analyzed pre and post training across and between groups using repeated measures ANOVA. Significant improvements were seen in REE (<em>P</em> P P > .05) difference between groups, although mean …
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Cross-Validation Of A Recently Published Equation Predicting Energy Expenditure To Run Or Walk A Mile In Normal Weight And Overweight Adults
… pace. Energy expenditure (EE) was determined via indirect calorimetry and reported in absolute units (kcal), and corrected to a mile distance. Body composition was assessed via DXA. EE per mile was predicted using the Loftin, et al. (2010) equation. The equation [Kcal = mass (kg) x 0.789 ? gender …
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Direct Quantitation of Heat Loss in Human Subjects Using Infrared Thermography
… measured by IRT and heat production obtained by indirect calorimetry (IC) were quantitated from human subjects during fasting, postprandially and during continuous infusion of nutrients (intraprandially). Under these conditions, no statistically significant differences were noted between IRT and …
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Reliability and Validity of a Multi-Sensor Armband in Estimating Resting and Exercise Energy Expenditure
… Inc.) during rest and exercise compared to indirect calorimetry (IC). Energy expenditure (EE) was assessed with SWA and IC in 13 males during two resting and one cycle ergometry (40 min at 60% VO<sub>2peak</sub>) sessions. In a second experiment, 20 adults walked on a treadmill for 30 min at …
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The effects of prolonged standing compared to prolonged sitting on postprandial lipemia
… fat, carbohydrate, and protein, respectively). Indirect calorimetry was used to measure metabolic rate and substrate oxidation while spectrophotometry was used to measure plasma concentration. Area under the curve (AUC) for the postprandial responses in plasma glucose and triglyceride were …
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The effect of prior exercise on the thermic effect of carbohydrate versus fat feeding in man
… thermic effect of food (TEF) was determined by indirect calorimetry over a 2 hour period following meal ingestion. The thermic effect of the carbohydrate meal was 50% greater than that of the fat meal (p {dollar}<{dollar} 0.05). Thermic effect of food was increased by 59% over control when the …
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Comparing energy expenditures between a circuit weight training protocol and a steady state aerobic activity
… back extension. EE was calculated by means of indirect calorimetry by the Cosmed K4 b²© (Rome, Italy) and heart rate (HR) was monitored by means of a FT1 Polar heart rate monitor (Polar Electro, Kempele, Finland). RPE values were taken at the end of every 4th CWT station and every 2 min …
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Gut-brain interactions in food reward
… hour post-consumption. In another, we perform indirect calorimetry to assess post-consumption changes in substrate oxidation rates. At the post-testing session, changes in self-reported liking, wanting, and ad libitum intake of each beverage are recorded. Brain response to each flavor cue …
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The role of brown adipose tissue on substrate metabolism and insulin sensitivity in humans
… tracers, hyperinsulinemic-euglycemic clamps, indirect calorimetry, and positron emission tomography-computed tomography. A novel method was established to sample the supraclavicular BAT depot and white adipose tissue biopsies were collected from the subcutaneous abdominal area. During cold …
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