Metabolic Cost of Bodyweight Training

Study Overview
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Brief Summary
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In this study, the investigators will be able to estimate the metabolic cost of several foundational bodyweight training exercises.

Detailed Description
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Bodyweight training has become a popular cardiovascular training choice in fitness centers and athletic performance enhancement facilities. Despite widespread use and growing popularity, little is known about the metabolic demands of such a training method. Therefore, the purpose of this study was to quantify the cardiovascular and metabolic cost from various foundational bodyweight exercises in order to contribute to a better planning of exercise programs in the real world. Ten healthy young adults were assigned to execute seven bodyweight exercises (acute bout) for 30 and 45 seconds. Anthropometric, metabolic, and performance measurements were conducted at baseline. The metabolic cost was estimated from heart rate, blood lactate, resting oxygen uptake, exercise oxygen uptake, and excess post-exercise oxygen consumption measurements using a portable gas analyzer.

Official Title
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Metabolic Cost of Bodyweight Training

Conditions
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Body Composition, Physical Fitness, Energy Expenditure, Resting Metabolic Rate

Intervention / Treatment
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* Behavioral: TR-30
* Behavioral: TR-45


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Aged between 18 and 35 years Physically active individuals Free of chronic diseases Free of musculoskeletal injuries Nonsmokers Exclusion Criteria: Musculoskeletal injuries Chronic diseases Use of alcohol, caffeine and any type of ergogenic supplements or medication before (≤6 months) and throughout the study.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Training<br>Participants in this arm will perform seven bodyweight training exercises (acute bout per exercise) at two different conditions (30 and 45 seconds). | Behavioral: TR-30<br>* Bodyweight training exercises will be performed for 30 seconds and the training volume will be consisted of 1 repetition.<br>Behavioral: TR-45<br>* Bodyweight training exercises will be performed for 45 seconds and the training volume will be consisted of 1 repetition.<br>|
| No Intervention: Control<br>Participants in this arm will receive no intervention. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in exercise-induced energy expenditure | Exercise energy expenditure (kcal) will be measured using a portable indirect calorimetry system | At pre-exercise, during, and post-exercise session (single bout lasting 30 and 45 seconds) | 
| Change in excess post-exercise oxygen consumption (EPOC) | EPOC (kcal) will be measured using a portable indirect calorimetry system | At post-exercise session (single bout lasting 30 and 45 seconds) | 
| Change in blood lactate concentration (BLa) | BLa (mmol/L) concentration will be measured in a microphotometer with commercially available kits. | At pre- and post-exercise session (single bout) at 3 minutes post-exercise | 
| Change in heart rate | Heart rate (bpm) will be measured with a wearable heart rate monitor | At pre-exercise, during, and post-exercise session (single bout lasting 30 and 45 seconds) | 
| Change in perceived exertion | Rating of perceived exertion (RPE) will be measured with the Borg scale (0-10) | At pre-exercise, during, and post-exercise session (single bout lasting 30 and 45 seconds) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body weight | Body weight will be measured on a beam balance with stadiometer | At baseline | 
| Body height | Body height will be measured on a beam balance with stadiometer | At baseline | 
| Body mass index (BMI) | BMI will be calculated using the Quetelet's equation | At baseline | 
| Waist circumference (WC) | WC (cm) will be measured using a Gullick II tape | At baseline | 
| Hip circumference (HC) | HC (cm) will be measured using a Gullick II tape | At baseline | 
| Waist-to-hip ratio (WHR) | WHR will be calculated by dividing the waist by the hip measurement | At baseline | 
| Resting metabolic rate (RMR) | RMR (kcal) will be measured using a portable open-circuit indirect calorimeter with a ventilated hood system | At baseline | 
| Body fat (BF) Body fat (%) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA) | BF (%) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA) | At baseline | 
| Fat mass (FM)t Body fat (%) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA) | FM (kg) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA) | At baseline | 
| Fat-free mass (FFM) | FFM (kg) will be assessed by whole-body dual-energy X-ray absorptiometry (DXA) | At baseline | 
| Maximal oxygen consumption (VO2max) | VO2max (mL/kg/min) will be assessed by a portable open-circuit spirometry system. | At baseline | 
| Maximal strength (1RM) | 1RM (kg) will be measured bilaterally on a horizontal leg press and seated chest press machine.. | At baseline | 
| Muscular endurance | Muscular endurance (repetitions) will be measured on a 1-min curl-up and push-up test. | At baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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functional fitness training, bodyweight training, energy expenditure, oxygen consumption, resistance training