Changes in Energy Expenditure in Response to Physical Activity in Healthy Adults
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: physical activity.
- Who it may be relevant to
- Registry conditions: Physical Activities. Basic parameters: 18 years — 30 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Poland
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Assessment of Changes in Energy Expanditure in Response to Short-term Physical Activity Measured by Indirect Calorymetry in Healthy Individuals
Overview
This study investigates how short, high-intensity body-weight exercises affect energy use in healthy young adults. The focus is on resting metabolic rate (RMR), total energy expenditure (TEE) and excess post-exercise oxygen consumption (EPOC), measured with a portable indirect calorimetry system (COSMED K5). Participants will be 14 volunteers, seven women and seven men aged 18 to 30 years, recruited from the academic community of the Medical University of Białystok. Each subject will first undergo basic screening, including ECG, blood pressure, and body composition. Measurements will be taken in three phases. In the resting phase, RMR will be recorded after fifteen minutes of quiet sitting. In the exercise phase, participants will perform squats, burpees, or a plank for one minute at maximum effort or sustained position while energy use is continuously monitored. In the recovery phase, EPOC will be measured immediately after exercise to capture short-term changes. Oxygen uptake, ventilation, heart rate, and oxygen saturation will be tracked throughout the session. Environmental conditions such as room temperature and humidity will be standardized, and participants will avoid caffeine, alcohol, and heavy physical activity at least 24 hours before testing. The main aim is to determine whether even one minute of exercise can meaningfully alter EPOC steady state parameters, and to compare the energy cost of different exercise types. The data will be analyzed in relation to anthropometric variables and cardiopulmonary function. Results are expected to improve understanding of short-term energy dynamics and may support more precise recommendations in pulmonary rehabilitation, cardiology, sports medicine, and nutrition. By providing reliable measurements of caloric cost in simple exercises, the study can help design safer and more effective training, rehabilitation, and weight control programs.
Interventions
- Diagnostic test physical activity
Participants perform short, body-weight exercises including squats, burpees, or plank while wearing a portable indirect calorimetry system (COSMED K5). Each activity lasts one minute and is carried out at maximum effort or sustained position. Energy expenditure, oxygen consumption, ventilation, and vital signs are continuously recorded during and immediately after the activity. Measurements are compared with resting metabolic rate obtained before and excess post-exercise oxygen consumption obtai
Primary outcome measures
- Differences Between Pre- and Post-exercise Energy Expenditure Measurement [Time frame: Baseline and immediately post-exercise (within 10-15 minutes).]
Secondary outcome measures (1)
- Total Energy Expenditure (TEE) During Exercise [Time frame: From the beginning to the end of performing the exercise (1 minute).]
Eligibility criteria
Inclusion criteria
- Age 18-30 years
- Healthy volunteers without chronic diseases
- Normal resting ECG (regular sinus rhythm, 60-90 bpm)
- Normal blood pressure according to ESC guidelines
- Ability and willingness to provide written informed consent
Exclusion criteria
- Chronic diseases or musculoskeletal injury within the past 6 months
- Use of tobacco or nicotine products within the past 6 months
- Blood donation >20 mL (except diagnostic) within the past 6 months
- Use of narcotics, sedatives, or dietary supplements (e.g., creatine) within the past 2 weeks
- Active infection, fever, or acute illness at the time of study
- Inability to comply with study instructions (dietary restrictions, abstinence from alcohol/caffeine, exercise restrictions)
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Poland · 1 center
- II Departemnt of Lung Diseases, Lung Cancer, and Internal Medicine — Bialystok
Identifiers
NCT: NCT07529132 · APK.002.256.2025