BENEFITS 益处
Improves thoracic and rib cage extension mobility; improves abdominal control during spinal extension; improves scapular awareness and stability; improves strength in thoracic extension.
改善胸椎与肋骨伸展后仰的活动度；改善在脊椎后仰伸展时，腹部的控制；改善肩胛位置的意识与稳定；改善胸椎后仰伸展的力量。
TARGET MUSCLES 目标肌群
Erector spinae, multifidus, abdominals, serratus anterior, middle/lower trapezius.
竖脊肌、多裂肌、腹肌、前锯肌、斜方肌中下部。
SETUP 设置
Swan prep: Chair placed at end of trapeze table or against two stacked boxes; if no trapeze table, 2 light springs attached at middle or higher position; pedals together.
Swan预备式：椅子Chair放在秋千床末端或靠在两个叠起来的箱子；没有秋千床支撑时，2条轻弹簧勾在中间或较高的位置；踏板连在一起。
CUES 口令
Starting position: Prone on chair, hands on pedals, arms straight. Scapulae slightly behind hands, lower ribs near chair edge. Legs extended long on table/boxes. Spine/pelvis neutral. Breathing: Inhale to lengthen spine; exhale to extend cervical and thoracic spine sequentially, can extend into lumbar as needed; inhale to flex spine sequentially from lumbar back to start. Imagery: Spine like a string of pearls lifted upward.
【起始位】俯卧在椅子Chair上，手在踏板上，手臂伸直。肩胛微在手的后方位置，最下方的肋骨靠近椅子的边缘。腿部伸延长放在床体或箱子上。脊椎/骨盆中立位。【呼吸模式】吸气时延伸脊椎；吐气时，颈椎、胸椎依顺序伸展后仰，可依照需求一直延伸到腰椎；吸气，脊椎一节一节地弯曲，从腰椎依顺序回到起始位置。【想象】脊柱像一串向上拉起的珍珠项链。
IMAGERY 意象
【Direct】Thoracic Extension: On inhale, focus on guiding the center of the sternum forward and up, letting each thoracic spinous process leave the chair surface sequentially. Lower Limb Alignment: As the spine curls up, keep the femurs in contact with the chair, maintaining lumbar length through subtle deep abdominal contraction. Axial Elongation: Keep the atlas (C1) and toes elongated in opposite directions, increasing intervertebral space through balanced pedal pressure. 【Indirect】Sprouting Seedling: Imagine you are a seedling breaking through the soil; your core is the root deep beneath the chair, and your spine is elegantly stretching toward the sunlight. Unfolding Scroll: Imagine your back as a dense scroll rolling upward; as the pedal rises, every inch of the spine spreads smoothly and flatly in the air. Leaping Dolphin: The trunk is like a dolphin leaping out of the ocean, using smooth core power to pierce through air resistance into a perfect streamlined arc at the peak. 【Space】Outer Shell of a Giant Cylinder: Feel your thorax moving along the surface of a giant, transparent horizontal cylinder; as you extend, try to 'wrap' each vertebra around its top boundary. Horizon Gazing: At the peak of the rise, let your gaze find and lock onto an infinitely distant horizon, projecting energy toward the farthest diagonal point. Filling Air Molds: Imagine a semi-transparent arch bridge mold in the air behind you; as you descend, actively 'fill' the mold's grooves with each vertebra without skipping. 【Feeling】Warm Current Lift (Thermal/Kinesthetic): Feel a warm stream flowing from deep in the abdomen up the spine; this warmth lightly lifts your thorax and washes away joint tightness. Resilience of Heated Amber (Texture/Kinesthetic): Imagine your spine is made of heated amber; it exhibits a dense, uniform, and damped resilience, eliminating mechanical tremors. Maglev Feedback (Tactile): Feel the feedback from the pedal to your palms as a maglev-like upward buoyancy; this gentle support helps maintain axial stability during the challenge.
【直接】分节伸展：吸气时，专注于引导胸骨（Sternum）中心向前、向上抬起，让每一节胸椎棘突依次离开椅面。下肢对位：在脊柱向上卷起时，保持大腿骨（股骨）与椅面接触，通过腹壁深层肌肉的微弱收缩来维持腰椎的长度。中轴延伸：保持寰椎（C1）与足尖在相反的方向上对位拉长，增加椎间盘的空间感。【间接】破土的萌芽：想象你是一个破土而出的新芽，核心是深扎在椅面下的根基，脊柱正顺着向上的生机优雅地抽长。展开的卷轴：将你的背部想象成一幅正在向上卷起的致密卷轴；随着踏板的抬升，每一寸脊柱都在空气中平整、顺滑地铺陈开来。跃起的海豚：躯干如同跃出海平面的海豚，利用核心爆发出的平滑力量划破空气阻力，让身体在最高点呈现出极致的流线型弧度。【空间】巨大圆柱体的外廓：感觉你的胸廓正贴合着一个巨大的、透明的水平圆柱体运动；伸展时，尝试让你的每一节脊椎都严丝合缝地“绕过”圆柱体的顶端边界。地平线的远眺：在起身的最高点，让你的目光去寻找并锁定视线尽头无限远的地平线。填充空气模具：想象你背后的空气中有一个半透明的拱桥模具；下落时，主动用你的每一节腰椎和胸椎去逐一“填满”模具的凹槽。【感觉】暖流的托举（温觉/动觉）：感受一股温暖的细流从腹部深处顺着脊柱向上流淌；这股暖意轻盈地托起你的胸廓，带走所有的关节紧绷。受热琥珀的韧性（质感/动觉）：想象你的脊柱是由受热后的琥珀制成的；它展现出一种致密、均匀且带有阻尼感的韧性。磁悬浮的反馈（触觉）：感受踏板对你手掌的反馈如同一种磁悬浮般的向上浮力；这种力量温和、精准地支撑着你，保持中轴稳定。
TACTILE CUES 触觉提示
Instructor lightly touches manubrium to guide upward lift; gently press on lower lumbar to prevent overcompensation; lightly press on inferior angle of scapulae to guide stability.
导师轻触胸骨柄引导向上提拉；在下腰椎处轻压提醒不要过度代偿；在肩胛下角轻按引导稳定。
PROGRESSION 进阶
P- decrease spring support; P- use chair only, no trapeze/boxes; P- single arm.Equipment adjustment: Separate the pedals to perform a rotational variation. Move the fixed position of the spring upward to increase the range of spinal extension and backward bending.
P-减少弹簧支撑；P-只用椅子，不加秋千床或箱子；P-单手练习。器械变化：把踏板分开，做旋转的变化式。把弹簧固定位置往上移，可以增加脊椎伸展后仰的活动范围。
REGRESSION 退阶
R- perform Prone Press Up on mat; R- add springs for more assistance.
R-在垫上做Prone Press Up；R-加弹簧以提供更多协助。
COMMON ERRORS 常见错误
Excessive lumbar or cervical extension; elbow hyperextension; rib flaring or collapsing; scapular winging or elevation; head dropping.
过度的腰椎或颈椎后仰伸展；手肘超伸；肋骨外翻或塌陷；肩胛外翻或上提；头垂下。
PRECAUTIONS 注意事项
Pregnancy; acute spinal stenosis; inability to bear weight on upper extremities.
怀孕；急性脊椎狭窄症；上肢无法负重状态。