Inter- and intra-day test-retest reliability of the Cosmed Fitmate Pro<sup>TM</sup> indirect calorimeter for resting metabolic rate

Campbell, Bill; Zito, Gina; Colquhoun, Ryan J.; Martinez, Nic; Louis, Courtney St; Johnson, Mallory; Buchanan, Laura; Lehn, Matt; Smith, Yasmin; Cloer, Brad; Raines, Kathryn

doi:10.1186/1550-2783-11-s1-p46

Cited by 13 publications

(9 citation statements)

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“…VCO 2 is not measured directly but estimated assuming a fixed respiratory quotient (RQ) of 0.85, which has been shown to introduce little error in RMR estimation (Nieman et al 2005; Nieman et al 2003). The Fitmate is portable, easy to use, and has been validated against the Douglas bag system (Nieman et al 2006), and it shows very high inter- and intra-day test-retest reliability for RMR measurement (Campbell et al 2014). …”

Section: Methodsmentioning

confidence: 99%

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

Gurven

Trumble

Stieglitz

et al. 2016

American J Phys Anthropol

101

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Objectives Resting metabolic rate (RMR) reflects energetic costs of homeostasis and accounts for 60-75% of total energy expenditure (TEE). Lean mass and physical activity account for much RMR variability, but the impact of prolonged immune activation from infection on human RMR is unclear in naturalistic settings. We evaluate the effects of infection on mass-corrected RMR among Bolivian forager-horticulturalists, and assess whether RMR declines more slowly with age than in hygienic sedentary populations, as might be expected if older adults experience high pathogen burden. Materials and Methods RMR was measured by indirect calorimetry (Fitmate MED, Cosmed) in 1,300 adults aged 20-90 and TEE was measured using doubly labeled water (n= 40). Immune biomarkers, clinical diagnoses and anthropometrics were collected by the Tsimane Health and Life History Project. Results Tsimane have higher RMR and TEE than people in sedentary industrialized populations. Tsimane RMR is 18-47% (women) and 22-40% (men) higher than expected using six standard prediction equations. Tsimane mass-corrected TEE is similarly elevated compared to Westerners. Elevated leukocytes and helminths are associated with excess RMR in multivariate regressions, and jointly result in a predicted excess RMR of 10-15%. After age 40, RMR declines by 69 kcal/decade (p<0.0001). Controlling for lean mass and height accounts for 71% of age-related RMR decline, and adding indicators of infection minimally affects the age slope. The residual level of age-related decline from age 40 is 1.2% per decade. Conclusion High pathogen burden may lead to higher metabolic costs, which may be offset by smaller body mass or other energy-sparing mechanisms.

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Section: Methodsmentioning

confidence: 99%

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

Gurven

Trumble

Stieglitz

et al. 2016

American J Phys Anthropol

101

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“…Relative consistency was accepted with the SEM and ICC values (0.981 and 0.946, responding during the day and in between). Moreover, no systematic error was found between measurements [17].…”

Section: Resting Energy Expenditure Assessment By Indirect Calorimetrymentioning

confidence: 81%

“…Estimation of REE (kcal/day) is possible thanks to the modified Weir equation: REE = [5.675 × VO2 + 1.593 × VCO2 − 21.7]; VO2 is the oxygen volume in the breath (mL/min) and VCO2 is the carbon dioxide output (mL/min) [16]. The Fitmate Med device was validated and showed very high reliability of the measurements obtained [17]. The results obtained using Fitmate Med are comparable to those obtained by the Douglas bag system, which uses a sensor to measure VCO2 [18].…”

Section: Resting Energy Expenditure Assessment By Indirect Calorimetrymentioning

confidence: 99%

The Diagnostic-Measurement Method—Resting Energy Expenditure Assessment of Polish Children Practicing Football

et al. 2021

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Establishing the amount of energy needed to cover the energy demand of children doing sport training and thus ensuring they achieve an even energy balance requires the resting energy expenditure (REE) to be estimated. One of the methods that measures REE is the indirect calorimetry method, which may be influenced by many factors, including body composition, gender, age, height or blood pressure. The aim of the study was to assess the correlation between the resting energy expenditure of children regularly playing football and selected factors that influence the REE in this group. The study was conducted among 219 children aged 9 to 17 using a calorimeter, a device used to assess body composition by the electrical bioimpedance method by means of segment analyzer and a blood pressure monitor. The results of REE obtained by indirect calorimetry were compared with the results calculated using the ready-to-use formula, the Harris Benedict formula. The results showed a significant correlation of girls’ resting energy expenditure with muscle mass and body height, while boys’ resting energy expenditure was correlated with muscle mass and body water content. The value of the REE was significantly higher (p ≤ 0.001) than the value of the basal metabolic rate calculated by means of Harris Benedict formula. The obtained results can be a worthwhile suggestion for specialists dealing with energy demand planning in children, especially among those who are physically active to achieve optimal sporting successes ensuring proper functioning of their body.

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“…Estimation of REE (kcal/d) is possible thanks to the modified Weir equation: REE = [5.675 × VO2 + 1.593 × VCO2 − 21.7], where VO2 is the oxygen volume in the breath (mL/min), and VCO 2 is the carbon dioxide output (mL/min) [24]. The Fitmate Med calorimeter was validated, and high reliability of the measurements was obtained [25]. The results obtained from the Fitmate Med device are comparable to the Douglas bag system, which uses a sensor to measure VCO2 [ [9].…”

Section: Resting Energy Expenditurementioning

confidence: 99%

The Influence of Maturity Status on Resting Energy Expenditure, Body Composition and Blood Pressure in Physically Active Children

et al. 2021

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Peak height velocity (PHV) is the period where the maximum rate of growth occurs. The moment the sports player reaches PHV can be estimated by monitoring the growth of body structures. The aim of this study was to assess changes in resting energy expenditure (REE), body composition and blood pressure in young, male soccer players between the pre-PHV, circa-PHV and post-PHV periods. This transverse study was conducted among 184 children aged 9 to 17 and included measurements of the resting energy expenditure (REE) using indirect calorimetry, body composition (bioimpedance) and blood pressure (sphygmomanometer). In addition, births in each quartile were analyzed. Children in the pre-PHV group had significantly lower REE values compared to the other two groups (p < 0.0001). The differences in the value of the REE between the children in the circum and post groups were not statistically significant. Additionally, the fat-free mass was significantly lower in the pre-PHV period compared to the other two periods (p < 0.0001), and the same relationship concerned the z-score body mass index (BMI) and systolic blood pressure. Early-born players were overrepresented (p < 0.05).

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Inter- and intra-day test-retest reliability of the Cosmed Fitmate Pro^TM indirect calorimeter for resting metabolic rate

Cited by 13 publications

References 0 publications

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

The Diagnostic-Measurement Method—Resting Energy Expenditure Assessment of Polish Children Practicing Football

The Influence of Maturity Status on Resting Energy Expenditure, Body Composition and Blood Pressure in Physically Active Children

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Inter- and intra-day test-retest reliability of the Cosmed Fitmate ProTM indirect calorimeter for resting metabolic rate

Cited by 13 publications

References 0 publications

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

High resting metabolic rate among Amazonian forager‐horticulturalists experiencing high pathogen burden

The Diagnostic-Measurement Method—Resting Energy Expenditure Assessment of Polish Children Practicing Football

The Influence of Maturity Status on Resting Energy Expenditure, Body Composition and Blood Pressure in Physically Active Children

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Inter- and intra-day test-retest reliability of the Cosmed Fitmate Pro^TM indirect calorimeter for resting metabolic rate