absadamannaathletebodybuildingbrianbuckleycoachcoachingcolemancompetitionconordietdrgainsgerguidehourihanehypertrophyindividualisinginjuryirishjaynejewettjohnjoneskiernanlawrencelesslevelmaxnutritionpakpeakingperformancephdpowerlifterpowerlifterspowerliftingpreviewprinciplesproseriestechniquetraintraining