Svastha Yoga & Ayurveda - Should you lock your knees in standing asanas? Sometimes, yes. As a rule, or as a habit, no. Locking your knees uses the full range of movement
If locking your knees when standing causes people to pass out due to blood pooling in the legs, do people also pass out from sitting due to the blood pooling? - Quora
![Standing position on vibration platform. (a) Flexed knees with marker,... | Download Scientific Diagram Standing position on vibration platform. (a) Flexed knees with marker,... | Download Scientific Diagram](https://www.researchgate.net/publication/47428284/figure/fig1/AS:202621844496387@1425320220647/Standing-position-on-vibration-platform-a-Flexed-knees-with-marker-the-standing.png)