With one trick, you'll always know which plane you're moving in. Plus, we'll cover how to remember the planes and axes of rotation easily. Want to support the channel? You can buy me a coffee here: www.buymeacoffee.com/memorize...
@joer7149 Bending forward would be in the sagittal plane, because your vertebrae are rotating around an imaginary line that runs from Side to Side. For another weird and possibly gross example, imagine you're eating a rotisserie chicken and you skewer it through the side. It can only rotate forward or backwards. That is movement in the sagittal plane. Same if you skewered it through it's shoulder from the side, the wing could only rotate up or down, that's the sagittal plane. If the skewered went through it's belly, from front to back, it could only spin from side to side, that's the frontal plane. If you skewered it from top to bottom, it could only twist or twirl, that's the transverse plane. Now you can use this skewer idea for any joint to think about which movement is in each plane. Hope that makes some sense.
The backup plan is always just to memorize which exercises/movements occur in each plane and after a while you should be able to see a pattern that might help make sense of it.
