COSMED's Quark CPET has been validated against a “first principles” metabolic calibrator capable of delivering cyclic air flows of known tidal volume, frequency and gas makeup. “First principles” systems are advantageous in validation testing because their calibration is based solely on easily measured and verified quantities such as length and time (See: Gore CJ, Catcheside PG, French SN,...
This study aimed to evaluate the agreement between the Q-NRG device in canopy mode and the Deltatrac II, which has long been considered the Gold Standard for Indirect Calorimetry in clinical practice, while its production has ceased. Sixty-one healthy volunteers underwent two consecutive assessments using both the Q-NRG and Deltatrac II in random order, under standardized conditions,...
Global economic growth has been linked to rising obesity rates and related health issues. A recent study involving 4,213 adults from 34 diverse populations across six continents explores the role of energy expenditure and diet in this trend. While economic development was associated with increased body mass, BMI, and body fat, it also led to higher total and basal energy expenditures....
Indirect calorimetry is a useful method to determine how much energy critically ill patients need while in the Intensive Care Unit (ICU). However, there is limited information on how energy needs change during the different stages of critical illness in large groups of patients. This study analyzed energy use in adult ICU patients overall and during the early, late, and recovery phases of...
Respiratory failure is a critical condition that occurs when the lungs cannot provide sufficient oxygen to the blood or effectively remove carbon dioxide from the body. Patients with respiratory failure often struggle to maintain adequate oral nutrition due to associated breathlessness, placing them at greater risk for malnutrition due to both their metabolic response to stress and their...
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