BENEFITS 益处
Improves body awareness, posture; promotes balance; improves leg alignment and strength.
提高身体自觉性，改善姿态；促进平衡感；改善腿部的排列与力量。
TARGET MUSCLES 目标肌群
Quadriceps, hamstrings, gastrocnemius, deep core stabilizers.
股四头肌、腘绳肌、腓肠肌、深层核心稳定肌。
SETUP 设置
1-2 springs; foot bar elevated; non-slip pad on carriage.
1-2根【弹簧】；脚踏杆架高；止滑垫放在床台上。
CUES 口令
Starting position: Sit on foot bar, sit bones directly in front of bar, one foot on carriage edge, other foot on floor or box. Breathing: Inhale to lengthen; exhale to extend knee, pushing carriage away; inhale to return. Imagery: Body like sitting on a chair floating on water.
起始位：坐在脚踏杆上，坐骨在杆正前方，一只脚踩在滑板边缘，另一只脚踩在地上或箱子上。呼吸：吸气延伸；吐气伸膝把滑板推开；吸气拉回。想象提示：身体像坐在一把浮动在水上的椅子。
IMAGERY 意象
【Direct】Sit directly on top of the sit bones, feeling the atlas at the first cervical vertebra continuously extending upward to maximize the space between each vertebra. When pressing the pedal, focus on the femur gliding smoothly within the acetabulum, ensuring the relative position of the ribs and pelvis does not change with leg movement. Slowly control the speed of the pedal's return, feeling the spring tension travel through the soles of the feet to the core, preventing the pedal from snapping back. 【Indirect】Magic Staff: Imagine your torso as a magic staff standing in the deep sea; the base (sit bones) is as steady as a mountain, and no matter how the currents (pedal) rise and fall, the central axis remains motionless. Precision Jack: Your abdomen is like a powerful hydraulic pump, using pressure generated from the core to drive the legs like the braces of a jack, pushing down smoothly and forcefully. Elongated Lighthouse: The body is like a towering lighthouse; the light from the lantern (crown of the head) always looks straight at the horizontal line, unfazed by the crashing waves (leg movements). 【Space】Transparent Sleeve: Feel as if you are sitting inside a tight, transparent glass sleeve; while moving the pedal, your sides must never touch the walls, maintaining a sense of centeredness. Horizontal Grating: Imagine a horizontal laser emitting from the crown of your head; it must stay at a fixed height on the wall; if the laser dot jumps up or down, it means you have lost axial extension. Filling Negative Space: Use your back to fill the membrane between your body and the air behind you, letting your breath expand posteriorly to fill the space behind the seat. 【Feeling】Magnetic Balance: Feel a strong magnetic levitation between the pedal and the soles of your feet; this suction carries your legs up lightly, while you steadily overcome the repulsion when pressing down. Dense Liquid: Imagine treading water in a thick liquid; every movement carries a steady, silky, and uniform sense of envelopment, giving the action a damped quality. Breeze Through a Valley: On inhalation, feel a cool breeze passing between the vertebrae, taking away pressure and making the upper body feel lighter and more transparent with every breath.
【直接】坐在坐骨的正上方，感受寰椎持续向上延伸，让每一节脊椎骨之间的空间最大化。在踩下踏板时，专注于大腿骨头在髋臼窝内平滑转动，确保肋骨与骨盆的相对位置不随腿部运动而改变。缓慢地控制踏板回升的速度，感受弹簧张力通过足底传导至核心，不让踏板猛然弹回。【间接】定海神针：想象你的躯干是一根立在深海里的定海神针，基座（坐骨）稳如泰山，无论脚下的水流（踏板）如何起伏，中心轴始终岿然不动。精密千斤顶：你的腹部就像一个强有力的液压泵，通过核心产生的压力驱动双腿像千斤顶的支架一样平稳、有力地向下推进。伸长的灯塔：身体像一座高耸的灯塔，灯头（头顶）发出的光芒始终直视前方水平线，不随海浪的拍打（腿部动作）而晃动。【空间】透明套筒：感觉你正坐在一根紧凑的透明玻璃套筒中，在移动踏板时，身体的侧面绝不碰触筒壁，维持身体的中心感。水平光栅：想象从你的头顶射出一道水平激光，它必须在墙上的固定高度保持不动，一旦激光点上下跳动，就代表你丢失了中轴的延伸。负空间填充：用你的背部去向后填满身体与空气之间的薄膜，让你的呼吸向后侧扩张，填充座椅后方的空间。【感觉】磁性平衡：感觉踏板与你脚底之间存在一种强力的磁悬浮力，这种吸力带着你的腿部轻盈地回升，而在下压时你需要稳健地克服这种斥力。稠密液体：想象你正在粘稠的液体中踩水，每一次推移都带有一种沉稳、丝滑且均匀的包裹感，让动作具有阻尼质感。风过空谷：吸气时，感觉脊椎骨之间有清凉的微风吹过，带走了压力，让上半身随着每一次呼吸变得更加轻盈和透明。
TACTILE CUES 触觉提示
Lightly press shoulders to guide axial elongation; fingers on pelvis to ensure level.
手轻压肩部引导中轴向上；手指放在骨盆两侧确保水平。
PROGRESSION 进阶
P- increase spring tension; P- single leg with other leg extended; P- arm variations; P- add spinal flexion/extension.
P-增加弹簧重量；P-单脚练习另一只脚伸直；P-手臂动作变化；P-加上脊椎前弯后仰。
REGRESSION 退阶
R- single leg with other foot on floor; hold foot bar for support.
R-单脚练习另一只脚踩地；手扶脚踏杆辅助。
COMMON ERRORS 常见错误
Anterior or posterior pelvic tilt; ribs flared forward in front of pelvis; sliding behind foot bar; uncontrolled knee movement.
骨盆前倾或后倾；肋骨前倾在骨盆前方；滑到脚踏杆后方位置；膝盖动作失去控制。
PRECAUTIONS 注意事项
Contraindications: Unable to sit with hip flexion >90° after THR; those with poor balance need to hold bar.
禁忌症：THR全髋置换术后无法坐下弯曲大于90度者；平衡感不好者需扶杆。