The metal frame has stronger rigidity and greater explosive spring force. Compared to the wooden version, there is a higher risk of impact and injury when it loses control, and the taboos are stricter.

1、 Absolutely prohibited from use/requires medical permission to practice

1. Acute phase injuries: Acute lumbar sprain, acute disc herniation, rotator cuff tear, ligament strain, joint dislocation, and unhealed fractures. Do not use the machine.
2. Serious bone and joint problems: severe osteoporosis (highly prone to compression fractures), severe knee and hip arthritis, spinal spondylolisthesis, and severe scoliosis have not been evaluated.
3. Cardiovascular problems: unstable hypertension, recent myocardial infarction, severe arrhythmia, failure to self train; Double evaluation by doctors and rehabilitation therapists is required.
4. Pregnancy: High risk pregnancies such as mid to late pregnancy, history of miscarriage/premature birth, and placenta previa are prohibited from self practicing; The Pilates chair during pregnancy must be evaluated by a specialized maternity teacher.
5. Early postoperative period: Within 3 months of spinal, joint, and abdominal surgery, do not use without the consent of the attending physician and rehabilitation specialist.
6. Dizziness, epilepsy, and severe vestibular dysfunction: Rapid sliding of chair pedals and spring rebound can easily trigger dizziness and falls.

2、 Training action taboos (cannot be performed on the machine)

1. Do not forcefully resist the resistance of the spring: Do not hold your breath and forcefully apply force to the hardtop spring. Metal chair springs have high elasticity and are prone to instantly strain your waist, back, shoulders, and neck.
2. Prohibit joint locking: If the knee and elbow are fully extended and locked with force, it will cause a huge impact on the joints.
3. It is prohibited to rebound and release the pedal: the handle and pedal must be firmly grasped and pressed; Do not release your foot and let the pedal bounce back, as there is a high risk of getting caught in the metal bracket and hitting your leg.
4. Prohibit excessive twisting and lumbar hyperextension stacking: Do not forcefully twist the waist or collapse the top ribs under pedal load.
5. Prohibit jumping and bouncing with heavy loads: Pilates chairs are not jumping equipment, jumping can impact the lumbar spine and damage the structure of the equipment.
6. It is forbidden to suddenly release resistance with one leg: if the spring is released too quickly on one side, the pelvis may roll over and the waist may compensate for sprains.

3、 Taboos on the use of the equipment itself

1. Do not use when screws are loose, the frame is shaking, springs are aging and cracking, or buckles fail: metal chair welds and fixing bolts are very dangerous once they fail.
2. Do not overload: strictly follow the weight bearing markings on the equipment, and do not have multiple people on the machine at the same time.
3. Do not sweat barefoot on smooth pedals during training: Metal pedal anti slip pads are prone to slipping and falling when worn.
4. Do not modify springs or extend levers on your own: it will change the mechanical structure and significantly increase the risk of loss of control.

4、 Taboos on crowd behavior

1. Not practicing on the computer after drinking alcohol, taking sedatives, or experiencing extreme physical fatigue can lead to a decrease in proprioception and increased risk of injury.
2. Beginners are prohibited from directly using high resistance springs and do not imitate high-level video movements. It is recommended to familiarize oneself with the pedal rebound rhythm under the supervision of a coach.
3. Pain Red Line: If there is sharp pain or radiating numbness (spreading to the legs or arms) during training, stop immediately and do not insist on “soreness is effective”.