High-Intensity Interval Training and Intermittent Fasting on Body Composition and Physical Performance in Active Women

Effect of High-Intensity Interval Training and Intermittent Fasting on Body Composition and Physical Performance in Active Women

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 Overview

• Status: Completed
• Conditions: Body Composition; Intermittent Fasting; Physical Performance
• Intervention / Treatment: Behavioral: Intensity interval training (HIIT); Behavioral: Intensity interval training (HIIT) + intermittent fasting

• Study Type: Interventional
• Enrollment (Actual): 14
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Spain
  • Alicante
    • San Vicente Del Raspeig, Alicante, Spain, 03690
      • Alejandro Martínez Rodríguez

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 35 years (ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

1. No muscular, ligamentous, bone, nerve or joint pathology incompatible with the training program.
2. Not to present cardiovascular or cardiorespiratory problems.
3. Physically active in the last 5 years, according to the American College of Sports Medicine (ACSM) definition.

Exclusion Criteria:

1. Following pharmacological treatment or supplement.
2. Performing other sports activities that may influence the study results during their participation in the study.
3. Not following training or diet program guidelines or attending scheduled training sessions.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: HEALTH_SERVICES_RESEARCH
• Allocation: NA
• Interventional Model: SINGLE_GROUP
• Masking: NONE

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

EXPERIMENTAL: 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.

Behavioral: Intensity interval training (HIIT); 2x8 weeks of high-intensity interval training (HIIT); Behavioral: Intensity interval training (HIIT) + intermittent fasting; 2x8 high-intensity interval training with (HIIT+IF) intermittent fasting caloric restriction (20% reduction in weekly energy intake).

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Hand-grip strength	Hand-grip strength test was performed as an indicator of overall strength.	16 weeks
Counter movement jump (CMJ)	In the CMJ test, the participants performed a maximum vertical jump starting from a standing position with arm swing not allowed.	16 weeks
Wingate Anaerobic 30 s Cycling Test	Wingate Anaerobic 30 s Cycling Test with a validated cycloergometer (Monark 894E, Vansbro, Sweden).	16 weeks
Fat mass	Body composition masses were estimated using validated equations. Carter's equation was used to estimate fat mass.	16 weeks
Muscle mass	Body composition masses were estimated using validated equations. Lee's equation to estimate muscle mass.	16 weeks
Residual mass	Body composition masses were estimated using validated equations. Residual mass was obtained from the difference between fat mass and muscle mass.	16 weeks
Body Mass	It was performed using a digital scale with 0,1kg accuracy (Tanita BC-545, Tokyo, Japan).	16 weeks

Collaborators and Investigators

• Sponsor: University of Alicante
• Collaborators: Universidad Católica San Antonio de Murcia

Study record dates

Study Major Dates

• Study Start (ACTUAL): September 1, 2019
• Primary Completion (ACTUAL): September 11, 2019
• Study Completion (ACTUAL): March 1, 2020

Study Registration Dates

• First Submitted: May 19, 2020
• First Submitted That Met QC Criteria: May 21, 2020
• First Posted (ACTUAL): May 27, 2020

Study Record Updates

• Last Update Posted (ACTUAL): May 27, 2020
• Last Update Submitted That Met QC Criteria: May 21, 2020
• Last Verified: May 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: CE061811

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No