ᴄʜᴏᴏsɪɴɢ ᴇxᴇʀᴄɪsᴇ ᴏᴠᴇʀ ᴅɪᴇᴛɪɴɢ ʙᴀsᴇᴅ ᴏɴ ᴘᴇʀsᴏɴᴀʟ ᴇxᴘᴇʀɪᴇɴᴄᴇ.