BENEFITS 益处
Improves spinal articulation in flexion and flexibility; massages back muscles; enhances eccentric and concentric core control; improves coordination and proprioception.
改善脊椎分节屈曲的活动度与灵活性；按摩背部肌肉；增强核心肌群的离心与向心控制；提高身体协调性与本体感觉。
TARGET MUSCLES 目标肌群
Abdominals (maintain flexion shape), erector spinae (eccentric control on roll back, concentric on roll forward), hip flexors (maintain leg position), shoulder girdle stabilizers.
腹肌（维持屈曲形态）、竖脊肌（离心控制滚动，向心控制回滚）、髋屈肌（维持腿部位置）、肩带稳定肌群。
SETUP 设置
None.
无。
CUES 口令
Starting position: Sit, balanced just behind sit bones. Spine in C-curve. Wrap hands around shins (wrists/ankles), shoulders down. Toes on floor, knees bent toward chest. Breathing/Movement: Inhale, roll back onto shoulder blades, hips in air, head off mat. Exhale, using core control and momentum, control roll forward to starting seat, feet not touching floor throughout. Imagery: Body like a round ball, rolling steadily on smooth floor; spine like a fixed string of pearls, rolling as a unit.
起始位：坐姿，以坐骨后缘为平衡点。脊椎呈C形前屈。双手环抱小腿（或手腕/脚踝），肩膀下沉。脚尖点地，膝盖弯曲靠近胸口。 呼吸与动作：吸气，向后滚动至肩胛骨支撑的位置，臀部在空中，保持头不压地。吐气，利用核心控制和动量，有控制地滚动回起始坐姿，过程中双脚不触碰地面。 想象提示：想象身体像一个圆润的球，在平滑的地面上稳定滚动；脊椎像一串被固定形状的珠子，整体滚动。
IMAGERY 意象
Direct: Feel contact points with mat changing sequentially. Indirect: Like a full wheel, rolling smoothly. Space: Imagine body wrapped in a sphere, rolling along floor. Feeling: Focus on core engaged to maintain ball shape and sequential massage of back.
直接：感受背部与垫子的接触点依次变化。间接：像一个饱满的轮子，平稳地滚动。空间：想象身体被包裹在一个圆球里，沿着地面滚动。感觉：注意力放在核心持续收紧以维持球形，以及背部被依次按摩的感觉上。
TACTILE CUES 触觉提示
1. Gently support sacrum with one hand, guide scapulae with other to direct roll. 2. During return, lightly touch lower back, cue initiation from abdominals.
1. 一手轻托练习者骶骨，一手轻扶其肩胛，引导滚动轨迹。2. 在回滚时，手指轻触其下背部，提示用腹肌启动。
PROGRESSION 进阶
1. Increase speed while maintaining control. 2. Keep legs straight during roll (very advanced, caution).
1. 增加滚动速度，同时保持控制。2. 在滚动过程中保持双腿伸直（难度极高，需谨慎）。
REGRESSION 退阶
1. Reduce range, rolling only between sacrum and scapulae. 2. Place soft mat behind to reduce fear. 3. Instructor assists with hands to guide roll.
1. 减小滚动幅度，仅在骶骨和肩胛之间小范围滚动。2. 在身后放置软垫，减少恐惧。3. 教练在旁用手辅助引导滚动。
COMMON ERRORS 常见错误
Head/neck compression on shoulders; initiating back roll with head/neck instead of pelvis; heels too far from glutes (hamstrings not engaged to assist return); insufficient back roll causing hips too low, losing momentum; using lumbar extension instead of abdominals to return; rolling too fast, losing control.
在肩支撑位置头颈受压；用头颈带动后滚而非骨盆；脚跟远离臀部（腘绳肌未收紧协助回滚）；后滚幅度不足导致臀部过低，无法利用动量返回；用腰椎后伸而非腹肌带动回坐；滚动速度过快失控。
PRECAUTIONS 注意事项
Caution or avoid for cervical spine conditions, severe osteoporosis, acute disc herniation, hypertension, glaucoma. Caution during menstruation.
颈椎病、严重骨质疏松、椎间盘突出急性期、高血压、青光眼患者慎做或避免。经期女性建议谨慎。