High Intensity Resistance Training Combined With Blood Flow Restricted Exercise in Elite Handball Players

Not Applicable

• Conditions: Hypertrophy
• Interventions: Behavioral: Resistance training

• Registration Number: NCT04750694
• Lead Sponsor: Department of Public Health, Denmark

Brief Summary

Purpose of the study is: to investigate the effects of 8 weeks intervention of high intensity resistance training(HIRT) combined with Blood Flow Restricted Exercise (BFRE) compared to high intensity resistance training alone.

Detailed Description: 30 elite handball players will be randomized into 2 groups of 15 participants each. Participants will be evaluated in the week before and the week after an 8-weeks training intervention with 2 weekly sessions. Based on their baseline muscle strength the participants will be randomized into two groups: HIRT-BFRE or HIRT-HIRT. Participants in both groups will perform a full-body training programme of HIRT. After the Full-body programme, Back squat exercise with low intensity and Blood flow restriction will be performed to the HIRT-BFRE group and back squat exercise with high intensity without blood flow restriction will be performed by HIRT-HIRT. Evaluation protocol includes: muscle strength measurement with 1 repetition maximum of Back squat and knee extension, muscle mass with Dual-Energy X-ray absorptiometry, muscle thickness of the thigh with ultra sound measurement, vertical jump height with linear Encoder, sprint performance with 30m sprint time.

Detailed Description

Not available

Study Timeline

• Study Start: 2020-11-01
• Study First Submitted: 2020-11-17
• Status Verified: 2021-02
• Study First Submitted QC: 2021-02-10
• Last Update Submitted: 2021-02-10
• Study First Posted: 2021-02-11
• Last Update Posted: 2021-02-11
• Primary Completion: 2021-11-01
• Study Completion: 2021-11-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• Age >= 18 years
• Ds
• Minimum of 2 years of resistance training experience
• >< Two resistance training sessions each week
• >< three handball sessions each week
• No injuries that prevent participants to perform test of maximal muscle strength
• No injuries, that affects the muscle strength or the ability to train

Exclusion Criteria

• Elevated blood pressure (>140/90)
• Anabolic steroids or prescription-only medical products with know or potential effect on muscle hypertrophy

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
RT	Resistance training	Resistance training alone
RT + BFRE	Resistance training	High intensity Resistance training combined with Blood Flow

Primary Outcome Measures

Name	Time	Method
Change in Maximal Muscle Strength	Baseline measurements at week 1, after four weeks of exercise at week 5 and post intervention at week 10.	Change in 1 RM (repetition maximum) muscle strength in back squat

Secondary Outcome Measures

Name	Time	Method
Change in Lean body mass	Baseline measurements at week 1 and post intervention at week 10.	Change in lean body mass assessed by Dual Energy X-ray Absorptiometry

Trial Locations

Locations (1)

Dept. of Public Health; 🇩🇰 Aarhus, Denmark