Effect of High-Intensity Interval Training and Intermittent Fasting on Body Composition and Physical Performance in Active Women
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Alicante
- Enrollment
- 14
- Locations
- 1
- Primary Endpoint
- Counter movement jump (CMJ)
Study Overview
Brief Summary
The objective of this study is to compare the body composition and physical performance effects of HIIT, with or without intermittent fasting intervention in active women. Fourteen active normal weight women aged 18-35 participated in the study. The effects of 2x8 weeks without (HIIT) or with (HIIT+IF) intermittent fasting caloric restriction (20% reduction in weekly energy intake) on body composition and performance (Hand-grip strength, Counter movement jump, Wingate Anaerobic 30 s Cycling Test), were compared. There were two weeks in between both phases when they did not perform the scheduled activity, so as not to alter the experimental phase.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Health Services Research
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 35 Years (Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •No muscular, ligamentous, bone, nerve or joint pathology incompatible with the training program.
- •Not to present cardiovascular or cardiorespiratory problems.
- •Physically active in the last 5 years, according to the American College of Sports Medicine (ACSM) definition.
Exclusion Criteria
- •Following pharmacological treatment or supplement.
- •Performing other sports activities that may influence the study results during their participation in the study.
- •Not following training or diet program guidelines or attending scheduled training sessions.
Arms & Interventions
PARTICIPANTS
A single-group crossover design was used to compare the effects of 2x8 weeks of high-intensity interval training without (HIIT) or with (HIIT+IF) intermittent fasting caloric restriction (20% reduction in weekly energy intake) on body composition and performance. There were two weeks in the middle of both phases in which they did not carry out programmed activity, in order not to alter the experimental phase.
Intervention: Intensity interval training (HIIT) (Behavioral)
PARTICIPANTS
A single-group crossover design was used to compare the effects of 2x8 weeks of high-intensity interval training without (HIIT) or with (HIIT+IF) intermittent fasting caloric restriction (20% reduction in weekly energy intake) on body composition and performance. There were two weeks in the middle of both phases in which they did not carry out programmed activity, in order not to alter the experimental phase.
Intervention: Intensity interval training (HIIT) + intermittent fasting (Behavioral)
Outcomes
Primary Outcomes
Counter movement jump (CMJ)
Time Frame: 16 weeks
In the CMJ test, the participants performed a maximum vertical jump starting from a standing position with arm swing not allowed.
Residual mass
Time Frame: 16 weeks
Body composition masses were estimated using validated equations. Residual mass was obtained from the difference between fat mass and muscle mass.
Muscle mass
Time Frame: 16 weeks
Body composition masses were estimated using validated equations. Lee's equation to estimate muscle mass.
Body Mass
Time Frame: 16 weeks
It was performed using a digital scale with 0,1kg accuracy (Tanita BC-545, Tokyo, Japan).
Hand-grip strength
Time Frame: 16 weeks
Hand-grip strength test was performed as an indicator of overall strength.
Fat mass
Time Frame: 16 weeks
Body composition masses were estimated using validated equations. Carter's equation was used to estimate fat mass.
Wingate Anaerobic 30 s Cycling Test
Time Frame: 16 weeks
Wingate Anaerobic 30 s Cycling Test with a validated cycloergometer (Monark 894E, Vansbro, Sweden).
Secondary Outcomes
No secondary outcomes reported
Investigators
Prof. Dr. Alejandro Martínez-Rodríguez
Assistant Professor
University of Alicante