Hypertrophy Clinical Trial
Official title:
High Intensity Resistance Training Combined With Blood Flow Restricted Exercise in Elite Handball Players
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.
Status | Recruiting |
Enrollment | 30 |
Est. completion date | November 1, 2021 |
Est. primary completion date | November 1, 2021 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 50 Years |
Eligibility | 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 |
Country | Name | City | State |
---|---|---|---|
Denmark | Dept. of Public Health | Aarhus |
Lead Sponsor | Collaborator |
---|---|
Department of Public Health, Denmark |
Denmark,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Jump Performance | Change in jump height. Change in vertical jump height (in cm, with Chronojump Linear Encoder Kit). Participants will perform a counter movement jump and jump as high as possible. The jump height will be recorded. | Baseline measurements at week 1 and post intervention at week 10. | |
Other | Sprint performance | Sprint performance. Change in sprint time (in seconds, with Witt speed gates). Participant will perform a 30-meter sprint on an indoor handball court. The time to perform a 30-meter sprint will be recorded. | Baseline measurements at week 1 and post intervention at week 10. | |
Primary | Change in Maximal Muscle Strength | Change in 1 RM (repetition maximum) muscle strength in back squat | Baseline measurements at week 1, after four weeks of exercise at week 5 and post intervention at week 10. | |
Secondary | Change in Lean body mass | Change in lean body mass assessed by Dual Energy X-ray Absorptiometry | Baseline measurements at week 1 and post intervention at week 10. |
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