Movement of trunk, pelvis, hips, and knees primarily in sagittal plane -including appropriate foot to hip alignment at start line.

在起跑线上时躯干，骨盆，髋关节和膝关节运动主要在矢状面，包括从足到髋的正确的生物力学对线排列。

youdao

To challenge yourself in this pose, inhale and raise your right leg parallel to the line of your torso, and hold for 30 seconds, keeping the hips level and pressing through the heel.

在这个体式上进一步的挑战自己，吸气，抬右腿与上身成一条线，保持30秒。保持髋骨水平和脚跟的压力感。

youdao

Keep hips flat on floor. Keep head in line with spine.

保持髋关节平贴地面，保持头部与脊柱位于同一直线。

youdao

This time, Harken sees a better alignment with Gartlanhis knees and hips line up, meaning less stress on his joints and fewer injuries.

NPR: Go the Distance with a Well-Fitted or High-Tech Shoe