Alternately tap X and C
This will solve ALL your problems in DayZ
Can't make a splint?
Can't jog up the slope cuz it's too steep?
Keep having to attempt making a stone knife again and again?
Get stuck while trying to drink the full bottle of water?
Hungry and cannibalistic but just can't finish cutting up that bambi?
After carrying out the command, and going into the animation, immediately start alternately tapping X and C!
It sounds ricidulous, but this works EVERY TIME. You will never get stuck again.
This makes playing DayZ on full servers far less stressful.