Low Load Resistance Exercises With Blood Flow Restriction Versus High Load Resistance Exercises

Not Applicable

Completed

• Conditions: Athletes
• Interventions: Other: Resistance exercise

• Registration Number: NCT05958056
• Lead Sponsor: University of Jordan

Brief Summary

Practical blood flow restriction (PBFR) is a new technique of reducing the venous return using a band with a pressure that is applied using a perceived pressure scale. The studies that investigate the acute effect of using PBFR and regular high intensity exercises on the level of growth hormone (GH) and blood lactate (BL) after lower extremity training in collegiate athletes are scarce.

Detailed Description

Practical blood flow restriction (PBFR) is a new technique of reducing the venous return using a band with a pressure that is applied using a perceived pressure scale. The studies that investigate the acute effect of using PBFR and regular high intensity exercises on the level of growth hormone (GH) and blood lactate (BL) after lower extremity training in collegiate athletes are scarce. Therefore, this study aimed to investigate the acute effect of a single session low load resistance exercises with PBFR compared to a high load resistance exercises without PBFR on the levels of GH and BL. A convenience sample of collegiate athletes were allocated to either an experimental group that performed low resistance exercises with PBFR or a control group that performed high resistance exercises without PBFR. The levels of GH and BL were examined in 3 time points: pre-training, immediate post-training, and 15 minutes post-training for both groups. Analysis of Variance (ANOVA) was used to assess the main and interaction effects of the groups.

Study Timeline

• Study Start: 2021-03-01
• Primary Completion: 2021-12-01
• Study Completion: 2022-07-01
• Study First Submitted: 2023-07-14
• Study First Submitted QC: 2023-07-14
• Study First Posted: 2023-07-24
• Status Verified: 2023-08
• Last Update Submitted: 2023-08-15
• Last Update Posted: 2023-08-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 22

Inclusion Criteria

• Student collegiate athletes.
• Age of 18 years and older.
• Free from any cardiovascular or respiratory disorders and did not have any injuries during the previous 12 months.

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Exclusion Criteria

• Students who were taking any medications for chronic conditions.
• Student who were taking any supplements.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
High resistance exercises	Resistance exercise	Participants in the control group performed one session of 80% 1RM without PBFR. The number of repetitions in every set was 10 times.
Low load resistance exercises with Practical blood flow restriction (PBFR)	Resistance exercise	Participants in the experimental group performed one session of 30% 1RM with Practical blood flow restriction training. The number of repetitions in every set was 15 times with PBFR.19 Participants in the experimental group used the elite band (occlusion training bands) for both thighs during the training session. The width of the thigh band was 5cm, which would produce a pressure between 160-240 mmHg. This pressure range is appropriate for most of the individuals who used PBFR.27 The perceived pressure scale (PPS) was used to estimate the appropriate pressure (7 out of 10) in training before performing the exercises.28,29 The blood flow restriction bands booklet was used30 along with previous studies to design the training session. Participants removed the BFR band immediately after the end of the training session.

Primary Outcome Measures

Name	Time	Method
Blood lactate	15 minutes after the end of intervention.	Blood test of the level of Blood lactate
Growth Hormone	15 minutes after the end of intervention.	Blood test of the level of growth hormone

Trial Locations

Locations (1)

The University of Jordan; 🇯🇴 Amman, Jordan