Power lifter, huh. Yeah when I was n high school I used to power lift, but I was 94lbs in da 114 class, lil dude ya know. Now that im older and quite a few major injuries alongside partying, like I had sense ya know (that is me telling the younger me, NO NO NO). Well im 36 now and weigh 205 and Well ive been doing keto for heck I guess a month n a half and I've lost like 10lbs. I believe im in for the long run cause high fats makes me not over eat or sit in my bed with my mind not letting me sleep till I feed myself and im not even really hungry , but as far as strength loss I'd say a little bit yes, cause if ur a power lifter u know u can syke ya mind out if needed to buck da system. But im n no shape to power lift n e more. Even when I do up my protein again, I know now that fat plays an important role im feeling full. Me, myself I've quit using carbs pre w/o and use vegetables high in nitrates and I find that works as good as carbs. And i bet carbs and nitrated togather are a power lifters rocket fuel, idk. But give keto a try, u may love the results, good luck and safe hard lifting to all HO, HO, HO (merry x mas n a few months)