Effects of Concurrent Training on Physical Fitness and Body Composition in Obese Individuals

Not Applicable

Recruiting

• Conditions: Obesity
• Interventions: Other: Concurrent Training; Other: Strength Training; Other: Aerobic training

• Registration Number: NCT05768581
• Lead Sponsor: Istituto Auxologico Italiano

Brief Summary

Ample evidence demonstrates the beneficial role of physical activity combined with a structured dietary plan to counteract obesity. International guidelines as the World Health Organization states that to improve fitness levels at least 150 min a week of physical activity at moderate intensity, combined with resistance training composed of 8-12 repetitions with an intensity of 60-70%1RM for each muscle group, are recommended. In this regard, a minimum dosage of 60-90 min of physical activity composed by aerobic exercises in alternation with resistance training protocols, allow a sequential development of cardiorespiratory fitness and muscular strength parameters avoiding potential interference effects. Interference may occur when strength and endurance stimuli both target opposite peripheral adaptations (e.g., hypertrophy vs. muscle capillarization) and this phenomenon seems to be particularly clear during adolescence. Nevertheless, the incorporation of different training stimuli within the same training session is called Concurrent Training. This training mode, thanks to the activation of two different metabolic pathways (e.g., aerobic and anaerobic), has a variety, beneficial effects in terms of muscle mass and strength development, body composition profile regulation and neuromotor function improvement. Concurrent Training seems to be effective not only in normal-weight subjects, but also in obese individuals, reporting positive adaptations on physical fitness and health status compared with a single-mode (i.e., aerobic or strength training). Therefore, the aim of this study is to detect the effects of a 10-week-Concurrent Training protocol compared with a single training modality on physical fitness, body composition and circadian rhythms in adult outpatients with obesity.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-10-01
• Study First Submitted: 2023-02-20
• Status Verified: 2023-03
• Study First Submitted QC: 2023-03-03
• Last Update Submitted: 2023-03-03
• Study First Posted: 2023-03-14
• Last Update Posted: 2023-03-14
• Primary Completion: 2024-04-30
• Study Completion: 2024-04-30

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 130

Inclusion Criteria

• Physical activity frequency minor of 2 days/week
• BMI major of 30 kg/m2
• informed consent signature

Exclusion Criteria

• age over 65 years
• knee or hip pain (visual analogue scale score >7 arbitrary units
• a history of hip, knee or foot replacement or osteoarthrosis
• cardiac infarction
• neurological impairments or any other clinical condition that affects the practice of physical activity

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Concurrent Training	Concurrent Training	Experimental: home-based concurrent training composed by strength and aerobic exercises within the same training session
Strength Training	Strength Training	Experimental: home-based resistance training mode
Aerobic Training	Aerobic training	Experimental: home-based endurance training mode

Primary Outcome Measures

Name	Time	Method
Change from baseline cardiorespiratory fitness in number of steps performed at 10 weeks fitness	Up to 10 weeks	Maximum aerobic capacity using the two minute step test
Change from baseline strength in kilograms at 10 weeks	Up to 10 weeks	Maximum isometric handgrip strength using a dynamometer
Change from baseline postural control in arbitrary units at 10 weeks	Up to 10 weeks	Balance and postural control using the Balance Error Scoring System

Secondary Outcome Measures

Name	Time	Method
Change from baseline weight in kilograms at 10 weeks	Up to 10 weeks	weight status using weight scale
Change from baseline circadian rhythm in arbitrary units at 10 weeks	Up to 10 weeks	Chronotype profile using Morningness-Eveningness Questionnaire
Change from baseline height in meters at 10 weeks	Up to 10 weeks	height using a stadiometer
Change from baseline waist circumference in centimeters at 10 weeks	Up to 10 weeks	waist circumference using a 200 cm tape
Change from baseline fat mass percentage at 10 weeks	Up to 10 weeks	Fat mass % using a Tetrapolar Bioelectrical Impedance

Trial Locations

Locations (1)

Istituto Auxologico Italiano IRCCS; 🇮🇹 Milan, Italy