so with these planks, try 15 seconds up, 15 seconds elbows -..
Added 2020-08-12 22:09:31 +0000 UTCso with these planks, try 15 seconds up, 15 seconds elbows - go as looong as possible
so with these planks, try 15 seconds up, 15 seconds elbows - go as looong as possible
