BENEFITS 益处
Improves hamstring flexibility; increases spinal flexion mobility.
改善大腿后侧（腘绳肌）柔韧性；增加脊椎屈曲活动度。
TARGET MUSCLES 目标肌群
Hamstrings, erector spinae, deep abdominals.
腘绳肌、竖脊肌、深层腹肌。
SETUP 设置
2 light or 1 heavy spring attached at highest position; pedals together.
2根轻量或一根重的弹簧连接在最高的位置；踏板连在一起。
CUES 口令
Starting position: Stand facing chair. Hands shoulder-width on pedals, knees straight or slightly bent. Breathing: Inhale to begin rolling spine down, hands on pedals; exhale to press pedals down, keeping thighs perpendicular to floor. Imagery: Body like a rolling hedgehog.
【起始位】面对椅子站立。双手与肩同宽放在踏板上，膝盖伸直或微屈。【呼吸模式】吸气开始往下卷动脊椎，手放在踏板上；吐气把踏板往下压，保持大腿垂直于地面。【想象】身体像一只正在卷起的刺猬。
IMAGERY 意象
【Direct】Inhale to initiate spinal articulation downward, keeping the femurs vertical to the floor. Recruit deep abdominals to pull the navel toward the spine for core support. During the roll-up, maintain axial elongation with the crown reaching toward the ceiling to maximize spinal length. 【Indirect】Pearl Necklace: Imagine your spine as a string of pearls; during the descent, each pearl lands one by one on a soft mat, and during the ascent, they are lifted individually and lightly. Fluid Silk: The movement of the spine is like silk undulating in the wind, possessing an extremely flexible and continuous flow without any sharp hinges. Rising Balloon: Imagine your head as a helium-filled balloon, not only floating upward but also drawing space between each vertebra. 【Space】Reaching for a Distant Light: As you articulate down, imagine your fingers reaching for a light in the far distance, using a visual target to increase back curvature and extension. Filling a Giant Hemisphere: Feel your back filling a large, transparent hemisphere behind you, pressing each vertebra against its inner wall to ensure a full trajectory without compression. 【Feeling】Peeling Velcro (Tactile): During the roll-up, feel each vertebra leaving a virtual wall like peeling off Velcro, with a crisp, rhythmic feedback. Memory Foam Impression (Tactile): Imagine leaning against a memory foam wall; as the spine articulates, leave a clear, even impression of each vertebra on the foam. Heavy Syrup Damping (Kinesthetic): While pressing the pedal, feel the air become as viscous as heavy syrup, requiring a deep, uniform, and highly controlled force to 'push through' the resistance.
【直接】吸气开始向下分节移动脊椎，保持大腿骨（股骨）垂直于地面。通过募集深层腹肌将肚脐向脊柱方向提拉，以启动核心支撑。在回卷时，保持头顶向天花板方向对位延伸，最大化中轴长度。【间接】珍珠项链：想象你的脊柱是一串珍贵的珍珠项链，下压时珍珠逐一落在柔软的垫子上，回升时则一颗颗轻盈提起。灵动的丝绸：脊柱的移动如同在风中起伏的丝绸，带有一种极其柔韧且连续的流动感，没有任何生硬的折点。上升的气球：想象你的头颅是一个充满氦气的气球，它不仅带着脊柱向上漂浮，还拉开了每一节椎体间的缝隙。【空间】触碰遥远的光源：在脊柱下压的过程中，想象你的手指正试图够向前方远处的灯光，通过建立远端目标来增加背部的弧度与延展性。填充巨大的半球：感觉你的背部正在向后方填充一个透明的巨大半球，用每一节脊椎去贴合半球的内壁，确保动作轨迹饱满且不产生压缩感。【感觉】剥离魔术贴（触觉）：在脊柱回卷时，感受每一节椎骨像撕开魔术贴（Velcro）一样，带着清脆且有节奏的反馈逐一离开虚拟的壁面。记忆海绵的压痕（触觉）：想象你正靠在一面记忆海绵墙上，随着脊柱的分节移动，在墙上留下每一节椎骨深浅一致、清晰整齐的压痕。厚重糖浆的阻尼（动觉）：在推下踏板时，感受空气变得像厚重的糖浆一样粘稠，你需要用一种深沉、均匀且极具掌控力的力量去‘推开’这种阻力。
TACTILE CUES 触觉提示
Lightly touch coccyx to guide toward ceiling; guide even flexion in thoracic spine; hand on abdominals to cue core engagement.
轻触尾骨引导其朝向天花板；在胸椎处引导均匀屈曲；手置于腹部提醒核心收紧。
PROGRESSION 进阶
P- use strap for single-leg variation; P- perform in high kneeling.
P-拉传力杆练习单侧动作；P-高跪姿练习。
REGRESSION 退阶
R- adjust distance based on client's height and mobility.
R-根据客户身高和活动度调整距离。
COMMON ERRORS 常见错误
Hinging at one spinal segment; shoulder shrugging; head hitting chair; excessive weight shift forward.
在单节脊椎凹折；耸肩；头撞到椅子；重心过度前移。
PRECAUTIONS 注意事项
Acute lumbar disc herniation.
急性腰椎椎间盘突出。