"COMPARATIVE EFFECTS of REDUCED EXERTION HIGH INTENSITY TRAINING (REHIT) VERSUS HIGH INTENSITY INTERVAL TRAINING (HIIT) on ANTHROPOMETRIC MEASURES in OVERWEIGHT and OBESE ADULTS"

Foundation University Islamabad

Status: Active, not recruiting

Conditions: Overweight and Obesity

Treatments: Other: High Intensity Interval Training (HIIT); Other: Reduced Exertion High Intensity Training (REHIT)

Study type: Interventional

Funder types: Other

Identifiers

NCT06609954

FUI/CTR/2024/26

Details and patient eligibility

About

Obesity is a global health concern associated with an increased risk of cardio-metabolic diseases and reduced overall health. Exercise is a proven modality for managing obesity, with current focus of researches on identifying more time-efficient modes of exercise training. REHIT and HIIT have proven benefits but comparative effects of REHIT and HIIT in overweight and obese adults is yet to be determined. Hence the objective of this study is to compare the effects of reduced exertion high intensity training (REHIT) versus high intensity interval training (HIIT) on anthropometric measures (weight, waist circumference, hip circumference, waist-to-hip ratio), CUN-BAE adiposity index and cardiorespiratory fitness in overweight and obese adults.

Full description

Obesity is a global health concern associated with an increased risk of cardio-metabolic diseases and reduced overall health. Exercise is a proven modality for managing obesity, with current focus of researches on identifying more time-efficient modes of exercise training. REHIT and HIIT have proven benefits but comparative effects of REHIT and HIIT in overweight and obese adults is yet to be determined.The significance of this study is to compare the effects of reduced exertion high intensity training (REHIT) versus high intensity interval training (HIIT) and will also investigate the effectiveness of REHIT as an alternative for overweight and obese individuals who perceive HIIT as too demanding. If found effective, it can also help in providing training protocol for optimizing cardiovascular health in this population, potentially leading to improved outcomes and reduced healthcare burdens. The results of this study will also add data to literature regarding the effects of REHIT and HIIT on anthropometric measures in overweight and obese. Main objective of this study is to compare the effects of reduced exertion high intensity training (REHIT) versus HIIT on anthropometric measures (weight, waist circumference, hip circumference, waist-to-hip ratio), CUN-BAE adiposity index and Cardiorespiratory fitness in overweight and obese individuals. The participants meeting the eligibility criteria will be recruited followed by random allocation to one of the 2 groups, following which they will be required to complete a self-reported demographic form and will be screened using Physical Activity Readiness Questionnaire (PAR-Q). Baseline evaluation will be done using tape measure for anthropometric, assessment of waist circumference and hip circumference, CUN-BAE index for adiposity and Queen's College step test for cardio-respiratory fitness. Experimental group A will perform REHIT while experimental group B will perform HIIT. Participants will also be provided with dietary restriction plan that will be followed during the training protocol. Exercise training would be performed for consecutive 6 weeks, 3 times a week on alternative days for total of 18 sessions.

Enrollment: 42 estimated patients

Sex: All

Ages: 18 to 45 years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria

• Both male and female adults aged 18-45 years
• Overweight individuals with BMI ≥ 23kg/m²- 24.9kg/m²
• Obese individuals with BMI ≥ 25kg/m²
• Individuals falling in low PA category as per IPAQ Exclusion Criteria
• Individuals with any diagnosed cardiovascular, metabolic or pulmonary disease
• Current neurological or musculoskeletal conditions which limit participation in the study
• Any active infections
• Those with any contraindication to exercise testing or training.
• Currently following any dietary restriction plans for weight loss

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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42 participants in 2 patient groups

Reduced Exertion High intensity Training (REHIT) Group

Experimental group

Description:

Participant will perform a 5 min warm-up exercises then do cycling or treadmill running for 20 min at 40%-60% of HRR and then will conclude with 5 min cool down exercises. From week 2 to 6 participants will be instructed to perform training sessions on a cycle ergometer.A 3-minute cool-down period will conclude each session. Patients in this group will be provided with a caloric restriction plan by a nutritionist that will be followed throughout the training duration.

Treatment:

Other: Reduced Exertion High Intensity Training (REHIT)

High Intensity Interval Training (HIIT)

Experimental group

Description:

Participant will perform a 5 min warm-up exercises then do cycling or treadmill running for 20 min at 40%-60% of HRR and then will conclude with 5 min cool down exercises. From week 2 to 6 participants will be instructed to perform a warm up of 5 min, then 4 bouts of 4 min of HIIT will be performed at 80%-95% of HRR separated by 3-min active recovery periods of moderate intensity cycling at 60%-70% of the HRR followed by 5 min cool down exercises. Patients in this group will be provided with a caloric restriction plan by a nutritionist that will be followed throughout the training duration.

Treatment:

Other: High Intensity Interval Training (HIIT)