02.09 Key Points: Simple Cross Inflection — Summary
02.09 Key Points: Simple Cross Inflection — Summary (English)
Section titled “02.09 Key Points: Simple Cross Inflection — Summary (English)”Transcript: View Transcript
Lesson 2.9: Key Points – Simple Cross Inflection
Section titled “Lesson 2.9: Key Points – Simple Cross Inflection”Lesson Summary
Section titled “Lesson Summary”This lesson introduces Simple Cross Inflection, a form that demonstrates the flexion-extension-flexion dynamic common in Baseworks. The lesson begins by introducing Reclining Transition, a position used frequently between movements, and breaks down the characteristic rounded spine position and the slow-motion suspension technique used in the form.
Key Takeaways
Section titled “Key Takeaways”1. Reclining Transition Introduction: The starting position shown is not the form itself but Reclining Transition—a position you’ll often return to between various movements in Baseworks practice. You’ll learn more about why this position is used in following sections.
2. Starting Setup: Begin with feet on the floor, elbows under shoulders, forearms gripping forward (which helps reduce effort required from abdominal muscles to keep you in this position). You’ll be asked to bring legs up with knees extended, ankles extended, and toes spread.
3. Foot Position as Movement Pattern: The position of the feet—ankle extended, spreading toes, pushing ball of the feet—is a Movement Pattern that repeats in Baseworks over and over whenever a foot is off the floor. This is usually what the foot would be doing at the ankle.
4. Ankle Cross: Cross the ankles—in the demonstration, right ankle crosses over. When you practice in the next lesson, you’ll repeat the movement twice: first with right ankle over, then with left ankle over. Keep extending ankles and pushing balls of feet—feet are very active.
5. Transition to Seated: Slowly bring feet onto the floor. One arm goes forward, then the other arm goes forward. Lean back, draw shoulders down, and round the spine.
6. Characteristic Rounded Position: This position is very characteristic in Baseworks—you’ll find yourself in it over and over. It’s different from the stacked ribcage-pelvis seen in previous forms. The upper spine is rounded and shoulder blades go away from each other. Shoulders are drawn down, fingers are spread. Edges of feet are gripping forward into the floor.
7. Spinal Flexion Entry: Imagine somebody is pressing on your head, and you start to roll in starting from the head and upper spine. Hands touch the floor and gently stay on the floor—not pulling on anything, just actively touching. Lower back is almost completely straight; it’s the upper spine and neck which are rounded.
8. Micro-Movements in Flexion: Lightly move ribcage and spine while drawing shoulders down, keeping chin slightly in. This way, all muscles in the back, back of neck, and around hips (because you’re pressing forward with edges of feet) are activated. These Micro-Movements help reduce tension in the muscles.
9. Spinal Extension: From spinal flexion, move to spinal extension. Bring spine to the position where neck, rib cage, lower back, and pelvis are completely stacked. We try to find this position over and over in Baseworks, in different positions of gravity and different positions of limbs. Do Micro-Movements—ribcage lightly moving side to side. Spine is really extended, shoulders drawn down. Neck is in line with spine. Edges of feet continue to grip forward. Entire body is active.
10. Return to Flexion: Begin to round upper spine one more time, chin into chest. As if somebody is pressing you into the chest, begin to lean back—imagine it as a slow-motion movement. Really, really slowly lean back.
11. Suspension Principle: Because the upper body has weight—similar to how in Squat we use arms to offset weight to bring pelvis back—here, because upper body is offsetting the weight, it allows you to lift feet off the floor. They just naturally come off the floor. Suspend in this position for a moment.
12. Return to Reclining Transition: Bring elbows under shoulders, extend knees, extend ankles, and push ball of foot. Come for a few seconds into Reclining Transition. From here, cross shins the opposite way with left ankle over and repeat on the other side.
13. Flexion-Extension-Flexion Dynamic: This dynamic of spinal flexion to extension to flexion is very common in Baseworks and appears in many forms. The following segment will discuss more about why this is done and will introduce other forms with similar dynamics.
Why This Matters
Section titled “Why This Matters”Simple Cross Inflection introduces the flexion-extension-flexion spinal dynamic that appears throughout Baseworks. More importantly, it demonstrates how controlled weight offsetting creates stability—the slow-motion suspension where feet lift naturally is only possible when the relationships between body segments are precisely managed. This principle transfers to countless other movements.
Tip: The moment when feet lift off the floor during the suspension should feel effortless—if you’re straining to lift them, you’re working too hard. The lift happens naturally when your upper body weight is positioned correctly. Focus on the slow lean back, and let the feet respond rather than actively lifting them.