Metabolic Cost of Bodyweight Training

Not Applicable

Completed

• Conditions: Physical Fitness; Body Composition; Resting Metabolic Rate; Energy Expenditure
• Interventions: Behavioral: TR-30; Behavioral: TR-45

• Registration Number: NCT05221203
• Lead Sponsor: University of Thessaly

Brief Summary

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

Detailed Description

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.

Study Timeline

• Study First Submitted: 2021-12-18
• Study Start: 2022-01-03
• Study First Submitted QC: 2022-01-22
• Study First Posted: 2022-02-02
• Primary Completion: 2022-02-20
• Status Verified: 2022-03
• Study Completion: 2022-03-13
• Last Update Submitted: 2022-03-14
• Last Update Posted: 2022-03-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 10

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.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Training	TR-45	Participants in this arm will perform seven bodyweight training exercises (acute bout per exercise) at two different conditions (30 and 45 seconds).
Training	TR-30	Participants in this arm will perform seven bodyweight training exercises (acute bout per exercise) at two different conditions (30 and 45 seconds).

Primary Outcome Measures

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

Secondary Outcome Measures

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

Trial Locations

Locations (1)

Laboratory of Exercise Physiology, Exercise Biochemistry and Sports Nutrition, School of Physical Education, Sports Sciences and Dietetics, University of Thessaly; 🇬🇷 Trikala, Greece