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Francisco J. Amaro-Gahete, Lucas Jurado-Fasoli, Alejandro R. Triviño, Guillermo Sanchez-Delgado, Alejandro De-la-O, Jørn W. Helge and Jonatan R. Ruiz

morning type). The resting metabolic rate was measured by indirect calorimetry during 15 minutes in peaceful and relaxing room (temperature: 22.6 [0.7]°C; humidity: 44.5% [6.1%]). After that, a maximal walking speed protocol on a treadmill (H/P/cosmos pulsar; H/P/Cosmos Sports & Medical GmbH, Nußdorf

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James E. Peterman, Kalee L. Morris, Rodger Kram and William C. Byrnes

) until volitional fatigue was reached. During the exercise test, respiratory gas exchange and energy expenditure were measured using a computerized indirect calorimetry system (TrueOne 2400; ParvoMedics, Sandy, UT). Heart rate was measured using radio telemetry (Polar ® , Kempele, Finland) that was

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Alyssa Evans, Gavin Q. Collins, Parker G. Rosquist, Noelle J. Tuttle, Steven J. Morrin, James B. Tracy, A. Jake Merrell, William F. Christensen, David T. Fullwood, Anton E. Bowden and Matthew K. Seeley

Gear, and Apple Watch) to accurately estimate energy expenditure is low enough to have negative implications for people who desire to use the wearables to lose body weight ( Shcherbina et al., 2017 ; Wallen, Gomersall, Keating, Wisløff, Coombes, 2016 ). Indirect calorimetry can be used to accurately

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Mhairi J. MacDonald, Samantha G. Fawkner and Ailsa G. Niven

have directly assessed relative exercise intensity (METs derived from V ˙ O 2 ) using indirect calorimetry during overground walking trials in a youth population. MET values derived are therefore “true” MET values, rather than estimated. Step rates have also been derived from real-time direct

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Philip von Rosen and Maria Hagströmer

participants with illness may receive lower time in activities with higher intensities relative to time in activities with lighter intensities, compared with younger and healthier participants. Other measures of physical activity, such as indirect calorimetry, doubly labeled water, direct observation, and so

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Greg Petrucci Jr., Patty Freedson, Brittany Masteller, Melanna Cox, John Staudenmayer and John Sirard

-structured lab protocol examining the validity of five wrist-worn consumer activity trackers the MS demonstrated the lowest accuracy and precision for estimated kCals, compared with indirect calorimetry ( Bai et al., 2016 ). This laboratory protocol consisted of three sessions: 1) 20 minutes of sedentary

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Monica Klungland Torstveit, Ida Fahrenholtz, Thomas B. Stenqvist, Øystein Sylta and Anna Melin

deficit Benardot ( 2007 ) Benardot ( 2013 ) Components of RMR ratio  mRMR Calorimetry using a ventilated canopy hood system (Oxycon Pro; Jaeger GmbH, Hoechberg, Germany) Calibrated before each test according to standards Oxygen consumption and carbon dioxide production were assessed over a 30-min period A

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Edward A. Gray, Thomas A. Green, James A. Betts and Javier T. Gonzalez

calorimetry equations of Jeukendrup and Wallis ( 2005 ). Statistical Analysis A priori sample size was calculated using the running capacity data ( d  = 1.84) from Maunder et al. ( 2018 ). N  = 5 would provide 95% statistical power with α = .05. Therefore, eight participants were recruited in each experiment

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Kyle L. Timmerman, Kevin D. Ballard, Michael A. Deal, Lisa C. Tagariello, Jenna M. Karrow, Gabrielle A. Volk, Adam Meisler, Ian D. Connors and Rachael E. Mott

determined by indirect calorimetry. 29 Blood Sampling and Analysis Whole blood (10 mL) was collected from an antecubital vein into a serum separator tube after 15 minutes of quiet seated rest. The tube was allowed to clot for 30 minutes at 4°C and then centrifuged (3000 revolutions per minute, 20 min, 4°C

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Chris Hopkins

. ( 2004 ). The use of uniaxial accelerometry for the assessment of physical-activity-related energy expenditure: A validation study against whole-body indirect calorimetry . British Journal of Nutrition, 91 ( 2 ), 235 – 243 . PubMed ID: 14756909 doi:10.1079/BJN20031033 10.1079/BJN20031033 Lawrence