Literature DB >> 7967805

Columbia respiratory-chamber indirect calorimeter: a new approach to air-flow modelling.

S B Heymsfield1, D B Allison, F X Pi-Sunyer, Y Sun.   

Abstract

A new air-flow modelling approach for respiratory-chamber indirect calorimetry is introduced. Based on thermodynamic theory, differential equations describing the dynamics of the calorimeter are derived. These equations are then developed into a linear state space model that can be conceptualized as a modern control system. Furthermore, both the system/output noises and input/output delays are considered in the model in the context of real applications. Finally, system accuracy is analysed so that the parameters in the calorimeter can be selected to minimise the error in estimating energy expenditure in humans.

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Year:  1994        PMID： 7967805     DOI： 10.1007/BF02524692

Source DB:  PubMed          Journal:  Med Biol Eng Comput        ISSN： 0140-0118            Impact factor:   2.602


  8 in total

1.  Simultaneous measurement of free-living energy expenditure by the doubly labeled water method and heart-rate monitoring.

Authors:  M B Livingstone; A M Prentice; W A Coward; S M Ceesay; J J Strain; P G McKenna; G B Nevin; M E Barker; R J Hickey
Journal:  Am J Clin Nutr       Date:  1990-07       Impact factor: 7.045

2.  Comparison of doubly labeled water, intake-balance, and direct- and indirect-calorimetry methods for measuring energy expenditure in adult men.

Authors:  J L Seale; W V Rumpler; J M Conway; C W Miles
Journal:  Am J Clin Nutr       Date:  1990-07       Impact factor: 7.045

3.  Inequality of inspired and expired gaseous nitrogen in man.

Authors:  L T Dudka; H J Inglis; R E Johnson; J M Pechinski; S Plowman
Journal:  Nature       Date:  1971-07-23       Impact factor: 49.962

4.  Production of elemental nitrogen by certain mammals including man.

Authors:  G Costa; L Ullrich; F Kantor; J F Holland
Journal:  Nature       Date:  1968-05-11       Impact factor: 49.962

5.  Analysis of gaseous exchange in open-circuit indirect calorimetry.

Authors:  D Brown; T J Cole; M J Dauncey; R W Marrs; P R Murgatroyd
Journal:  Med Biol Eng Comput       Date:  1984-07       Impact factor: 2.602

6.  5.8 m3 human heat-sink calorimeter with online data acquisition, processing and control.

Authors:  S Jacobsen; O Johansen; L Garby
Journal:  Med Biol Eng Comput       Date:  1982-01       Impact factor: 2.602

7.  A human calorimeter for the direct and indirect measurement of 24 h energy expenditure.

Authors:  M J Dauncey; P R Murgatroyd; T J Cole
Journal:  Br J Nutr       Date:  1978-05       Impact factor: 3.718

8.  Determinants of 24-hour energy expenditure in man. Methods and results using a respiratory chamber.

Authors:  E Ravussin; S Lillioja; T E Anderson; L Christin; C Bogardus
Journal:  J Clin Invest       Date:  1986-12       Impact factor: 14.808
  8 in total
  3 in total

1.  Small organs with a high metabolic rate explain lower resting energy expenditure in African American than in white adults.

Authors:  Dympna Gallagher; Jeanine Albu; Qing He; Stanley Heshka; Lawrence Boxt; Norman Krasnow; Marinos Elia
Journal:  Am J Clin Nutr       Date:  2006-05       Impact factor: 7.045

2.  Bone mineral density accrual determines energy expenditure with refeeding in anorexia nervosa and supersedes return of menses.

Authors:  Melissa Sum; Laurel Mayer; Michelle P Warren
Journal:  J Osteoporos       Date:  2011-08-23

3.  Does practicing hatha yoga satisfy recommendations for intensity of physical activity which improves and maintains health and cardiovascular fitness?

Authors:  Marshall Hagins; Wendy Moore; Andrew Rundle
Journal:  BMC Complement Altern Med       Date:  2007-11-30       Impact factor: 3.659
  3 in total

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