BENEFITS 益处
Improves scapular mobility, stability and alignment; improves thoracic extension ability (while maintaining prone position) and arm strength.
改善肩胛的活动度、稳定能力与排列；改善胸椎后仰伸展能力（保持身体俯卧的姿势）与手臂力量。
TARGET MUSCLES 目标肌群
Serratus anterior, trapezius (middle and lower), rhomboids, erector spinae, posterior deltoid.
前锯肌、斜方肌（中下部）、菱形肌、竖脊肌、三角肌后束。
SETUP 设置
2 light springs attached at middle position; pedals together; chair placed at end of trapeze table or next to stacked boxes.
2条轻弹簧钩在中间位置；踏板连在一起；椅子放在秋千床末端或靠在叠放的箱子旁。
CUES 口令
Starting position: Prone on chair, hands on pedals, arms straight. Shoulders slightly behind hands, legs extended long on table or boxes. Breathing: Inhale to retract scapulae, pedals move; exhale to protract scapulae, pedals press down. Scapulae move, trunk still. Imagery: Scapulae like two sliding doors opening and closing on the back.
【起始位】俯卧于椅子上，手在踏板上，手臂伸直。肩部微于手后方的位置，腿延伸长放于床身或箱子上。【呼吸】吸气时让肩胛后收，踏板上移动；吐气时肩胛前引，踏板下压。肩胛动，躯干不动。【想象】肩胛骨像两扇滑动门在背后开合。
IMAGERY 意象
【Direct】Scapular Retraction: On inhale, focus on gliding the medial borders of the scapulae smoothly toward the spine, keeping the humeral head centered within the glenoid fossa. Scapular Protraction: On exhale, increase the distance between the scapulae, feeling them widen across the rib cage according to its curvature. Head-Neck Alignment: Keep the center of the ear canal precisely aligned with the side of the shoulder on a horizontal plane. 【Indirect】Sliding Puzzle Pieces: Imagine your scapulae as two precision puzzle pieces on your back; they merge and separate extremely smoothly over the rib surface. Unfolding Scroll: Imagine your upper back as an ancient scroll slowly unfolding; during protraction, the scroll spreads evenly to both sides. Mountain Mists: The movement of the scapulae is like light mist swirling around mountain peaks (ribs); they rise, fall, and flow silently on both sides of the spine. 【Space】Vertical Elevator Shaft: Feel your hands inside two extremely narrow vertical elevator shafts; the pedal's movement must occur precisely along the shaft walls. Rear Projection Screen: Imagine a horizontal projection screen behind you; as the scapulae slide back, use their edges to evenly 'smooth out' the texture on the screen. Extending Axial Fiber: Visualize a flexible optical fiber running from the crown to the toes; this fiber must maintain constant tension throughout the movement. 【Feeling】Warm Butter (Tactile/Kinesthetic): Feel the scapulae gliding over the rib cage like pushing a block of butter in a warm pan; a silky, frictionless, and moist physical feedback. Underwater Serenity (Auditory/Awareness): Attempt to make the movement as quiet as if it were happening deep underwater; listen to the rhythm of the pedal rising. Internal Spring (Thermal): As you press the pedal, feel a cool stream of spring water flowing from the armpits to the fingertips, washing away all tension in the neck and shoulders.
【直接】启动肩胛内收 (Retraction)：吸气时，专注于引导肩胛骨的内侧缘向脊柱中心平滑滑动，同时保持肱骨头（上臂骨顶端）在关节窝内的中心位置。肩胛前引 (Protraction)：吐气时，增加两侧肩胛骨之间的距离，感受它们顺着肋骨笼的曲率向胸部两侧展宽。维持头颈对位：保持耳道中心与肩膀侧面在水平面上精准对齐。【间接】滑动的拼图块：想象你的两块肩胛骨是覆盖在后背上的两块精密拼图；它们在肋骨表面极其顺滑地汇合与分离。展开的卷轴：将你的背部上缘想象成一幅正在缓缓展开的古老卷轴；在肩胛前引时，卷轴向两侧均匀地铺陈开来。山间的云雾：肩胛骨的运动如同萦绕在山峰（肋骨）间的轻盈云雾；它们在脊柱两侧无声地升降与流动。【空间】垂直电梯井：感觉你的双手正位于两个极窄的垂直电梯井内；踏板的上下移动必须精确地沿着井壁发生。背后的投影幕布：想象你身后有一面水平的投影幕布；当肩胛骨向后滑动时，用它们的边缘去均匀地“刷平”幕布上的纹理。延伸的中轴光纤：视觉化一根从头顶贯穿至足尖的柔韧光纤；在整个动作过程中，这根光纤必须维持恒定的张力。【感觉】温热的黄油（触觉/动觉）：感受肩胛骨在肋骨笼上的滑动过程，如同在温热的平底锅中推开一块黄油；带有一种极其丝滑、无摩擦且温润的物理反馈模式。水下的静谧（听觉/觉知）：尝试让动作变得像在深水之下发生一样安静；静静听听踏板升起的节奏。内部的清泉（温觉）：在压下踏板时，感受一股清凉的泉水顺着腋下流向指尖，带走所有肩颈的紧绷。
TACTILE CUES 触觉提示
Lightly touch medial border of scapulae to guide retraction; gently press on thoracic spine to cue against excessive lumbar collapse.
手轻触练习者肩胛骨内侧缘，引导后收运动；轻按胸椎段提醒不要过度塌腰。
PROGRESSION 进阶
P- increase spring tension for more control, decrease springs for less assistance; P- use chair only without trapeze table.
P-增加弹簧重量以增加控制，减少弹簧则减少协助；P-只用椅子进行练习。
REGRESSION 退阶
R- client shifts body position slightly back.
R-客户身体位置往后靠一点。
COMMON ERRORS 常见错误
Trunk flexion; cervical hyperextension; elbow hyperextension; scapular elevation; excessive scapular protraction.
躯干屈曲前弯；颈椎后仰伸展；手肘超伸；肩胛上提；过度的肩胛前引。
PRECAUTIONS 注意事项
Non-weight bearing status; acute spinal or shoulder conditions; pregnancy (modify position).
无法负重状态；急性脊柱或肩部病症；怀孕（需调整姿势）。