Phil just reminded me about remembering good posture when shoveling ( and snow blowing). Thanks for the reminder Phil!!
Note to myself; You can turn snow removal into great training! Qigong even!! (now that's a positive spin..eh?) Just use good alignment, leg power instead of the lower back, avoid twisting with snow on the shovel, using stepping instead twisting (kai bu, bei bu), use longevity breathing, change sides often, drink plenty of water and remember to stretch after the 'snow removal work out'!
Be safe!