Stretching is very important before you exercise, not doing this can lead to injuries.
Stretching video 1
This video contains the following
back and neck stretch
calf stretch
chest and bicep stretch
chest stretch
desk
glute stretch
hamstring stretch
https://youtu.be/GslFXr10eEc
Stretching video 2
This video contains the following
lower back stretch
partner lower body
partner upper body
pretzel twist
quad stretch
seated glute stretch
tricep stretch
https://youtu.be/kF2ooRTuzZk
