Effects of Back Squat Exercise with or Without Blood Flow Restriction in Healthy Adolescent Basketball Athletes: a Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 39
- 试验地点
- 1
- 主要终点
- Quadriceps Muscle strength (Kg)
研究概览
简要总结
The goal of this clinical trial is to assess the effectiveness of Blood Flow Restriction (BFR) training compared to traditional high-intensity training in adolescent basketball players aged 16-18. The main questions it aims to answer are:
Does BFR training improve muscle strength more effectively than traditional high-intensity training? Does BFR training enhance jump height and ground reaction force (GRF) while reducing mechanical load? Researchers will compare BFR training to traditional high-intensity training to see if BFR training offers greater improvements in muscle strength, jump height, and GRF while potentially reducing knee joint stress.
Participants will:
Be randomly assigned to either the BFR training group or the high-intensity training group.
Undergo performance evaluations, including measurements of muscle strength, jump height, and GRF at three time points throughout the study.
Follow a training protocol specific to their assigned group
详细描述
Detailed Description:
This randomized controlled study aims to evaluate the effectiveness of Blood Flow Restriction (BFR) training compared to traditional high-intensity training in adolescent basketball players, focusing on performance enhancement and safety. The study was approved by the Committee Research Ethics of Saint Joseph University of Beirut (Code: 2023-325) on December 7, 2023.
Study Setting and Participants: The research was conducted within two sports academies in Lebanon, Mont La Salle and Rebound academies. A total of 50 adolescent basketball players, aged 16-18 years, participated. Inclusion criteria required regular training (at least three sessions per week) and competitive basketball experience within the last six months. Exclusion criteria included history or presence of cardiovascular, pulmonary, or metabolic conditions, vascular disorders, coagulation disorders, or ongoing anticoagulant therapy. Before starting the study, participants completed a recruitment questionnaire to gather demographic data and assess eligibility for BFR training.
Study Design and Randomization: Participants were randomly assigned into two groups:
Group 1 (BFR Training Group): Engaged in low-intensity resistance training (20-30% of 1RM) with BFR using pressure cuffs on the lower limbs.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
盲法说明
In this study, only the Outcomes Assessor is masked to the group assignments. The assessors responsible for measuring muscle strength, jump height, and ground reaction force (GRF) are unaware of which participants belong to the Blood Flow Restriction (BFR) training group or the traditional high-intensity training group. This masking aims to minimize bias during the evaluation and analysis of performance outcomes. The participants, care providers, and investigators are aware of the group assignments, as they are directly involved in the delivery and participation in the specific training protocols.
入排标准
- 年龄范围
- 16 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Aged between 16 and 18 years.
- •Engaged in basketball training sessions at least three times per week.
- •Competed in basketball within the last six months.
- •No major injuries that limit their training session routines.
排除标准
- •History or presence of cardiac, pulmonary, or metabolic conditions.
- •Presence of vascular disorders in the upper or lower limbs.
- •Individuals with coagulation disorders or those undergoing anticoagulant therapy.
- •Recent surgeries or chronic conditions contraindicating Blood Flow Restriction (BFR) training.
研究组 & 干预措施
Back Squat Exercise without Blood Flow Restriction
In this arm of the study, participants will perform back squat exercises without any blood flow restriction. This group serves as a control to evaluate the effects of traditional resistance training alone on strength and muscle development in healthy adolescent basketball athletes.
干预措施: Back squats (Behavioral)
Back Squat Exercise with Blood Flow Restriction
This arm of the study involves participants performing back squat exercises while blood flow restriction is applied to the upper legs. The aim is to assess the effects of combining traditional resistance training with blood flow restriction on strength and muscle hypertrophy in healthy adolescent basketball athletes.
干预措施: Back squat with Blood flow restriction machine (Device)
结局指标
主要结局
Quadriceps Muscle strength (Kg)
时间窗: Baseline (Day 0, before starting the protocol), 3 weeks after baseline (Day 21), and 48 hours after the last session, approximately 6 weeks after baseline (Day 42).
Assessed using a digital dynamometer, this measure reflects the improvement in quadriceps strength, a key indicator of the effectiveness of low-intensity training with BFR.
次要结局
- Hamstring Muscle Strength (kg)(Baseline (Day 0, before starting the protocol), 3 weeks after the baseline assessment (Day 21), and 48 hours after the last session, approximately 6 weeks after the baseline assessment (Day 42).)
- Jump Height (cm)(Baseline (Day 0), 3 weeks after baseline (Day 21), and 48 hours after the last session, approximately 6 weeks after baseline (Day 42).)
- Ground reaction force (Newton)(Baseline (Day 0), 3 weeks after baseline (Day 21), and 48 hours after the last session, approximately 6 weeks after baseline (Day 42).)
研究者
Perla Mjaess
Study coordinator
St Joseph University, Beirut, Lebanon