ᴛʜᴇ ʀᴏʟᴇ ᴏғ ᴍɪsɪɴғᴏʀᴍᴀᴛɪᴏɴ ɪɴ ᴠᴀᴄᴄɪɴᴀᴛɪᴏɴ ᴇxᴇʀᴄɪsᴇ.