Acute Effects of Static Stretching on the Shoulder Joint Position Sense of Overhead Athletes: a Randomized Crossover Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 17
- 试验地点
- 2
- 主要终点
- Variable angular error
研究概览
简要总结
The purpose of the study is to investigate the acute effects of static stretching on the shoulder joint position sense of overhead athletes.
详细描述
A crossover randomized controlled trial will be conducted with 17 overhead athletes (9 males and 8 females). All of them will perform the 3 study conditions in random order: a control (5-minute rest), and static stretching of 30 or 90 seconds of muscles around the shoulder. The shoulder joint position sense will be assessed before and immediately after these conditions, and tested by active repositioning for the range of 110º of flexion, with a video camera. Absolute, relative and variable angular errors will be calculated.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Health Services Research
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Subjects aged between 18 and 30 years
- •Competitive overhead athletes (basketball, handball, volleyball, swimming)
- •Normal range of motion of flexion of the shoulder
排除标准
- •History of injury of the shoulder joint in the previous 6 months
- •Positive shoulder joint integrity tests (anterior drawer; fulcrum test; Jerk test; and sulcus sign)
研究组 & 干预措施
Control Condition
5-minute rest.
Static Stretching of 30 seconds Condition
Static stretching of 30 seconds of muscles around the shoulder of the dominant upper limb:
- Shoulder extension - shoulder extension with the hand resting on a door;
- Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
- Shoulder flexion - arms above the head against a wall;
- Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
- Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
- Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.
干预措施: Static Stretching (Other)
Static Stretching of 90 seconds Condition
Static stretching of 90 seconds of muscles around the shoulder of the dominant upper limb:
- Shoulder extension - shoulder extension with the hand resting on a door;
- Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
- Shoulder flexion - arms above the head against a wall;
- Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
- Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
- Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.
干预措施: Static Stretching (Other)
结局指标
主要结局
Variable angular error
时间窗: Change from Baseline (Before) to Immediately after interventions or control (After)
The standard deviation of the 3 repositionings
Absolute angular error
时间窗: Change from Baseline (Before) to Immediately after interventions or control (After)
The absolute value of the difference between the target range and the achieved range
Relative angular error
时间窗: Change from Baseline (Before) to Immediately after interventions or control (After)
The arithmetic difference between the target range and the range achieved
次要结局
未报告次要终点