Protein Supplementation and HIIT: Impact on Cardiorespiratory Fitness

Summary

The aim of this study is to investigate the effects of an 8-week high-intensity interval training (HIIT) or HIIT plus resistance training program combined with post-exercise protein supplementation on cardiorespiratory fitness and cardiometabolic risk indices in previously untrained individuals.

Conditions

• Primary Prevention
• Health Promotion

Interventions

DIETARY_SUPPLEMENT

HIIT + protein

8-week supervised exercise program consisting of high-intensity interval training (HIIT). HIIT: 10x1 min at 85-95% HRmax divided by low intensity recovery periods. Three exercise sessions per week. Participants receive 40 g of a commercially available protein supplement administered as a shake after every exercise session.

DIETARY_SUPPLEMENT

HIIT + placebo

8-week supervised exercise program consisting of high-intensity interval training (HIIT). HIIT: 10x1 min at 85-95% HRmax divided by low intensity recovery periods. Three exercise sessions per week. Participants receive 40 g of a commercially available iso-caloric placebo (Maltodextrin) administered as a shake after every exercise session.

DIETARY_SUPPLEMENT

HIIT and resistance training + protein

8-week supervised exercise program consisting of high-intensity interval training (HIIT) and resistance training (RST). HIIT: 5x1 min at 85-95% HRmax divided by low intensity recovery periods. RST: 3-set resistance training using weight machines to train all major muscle groups with an individual intensity corresponding to 70-80% of one repetition maximum. Two exercise sessions per week. Participants receive 40 g of a commercially available protein supplement administered as a shake after every exercise session.

DIETARY_SUPPLEMENT

HIIT and resistance training + placebo

8-week supervised exercise program consisting of high-intensity interval training (HIIT) and resistance training (RST). HIIT: 5x1 min at 85-95% HRmax divided by low intensity recovery periods. RST: 3-set resistance training using weight machines to train all major muscle groups with an individual intensity corresponding to 70-80% of one repetition maximum. Two exercise sessions per week. Participants receive 40 g of a commercially available iso-caloric placebo (Maltodextrin) administered as a shake after every exercise session.

Sponsors & Collaborators

• University of Erlangen-Nürnberg Medical School

  lead OTHER

Principal Investigators

• Dejan Reljic, Dr. · University Erlangen Nuremberg Medical School

• Yurdagül Zopf, Prof. · University Erlangen Nuremberg Medical School

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

50 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2020-01-01

Primary Completion

2022-12-31

Completion

2022-12-31

Countries

• Germany

Study Locations