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Hello, I'm thinking of getting fb flex & fb abs and I was wondering if fb flex involved a lot of push-ups and fb abs involved a lot of crunches cause I hardly can do one full push-up and crunches really put a lot of strain on my spine.
FB flex & FB abs
Hello, I'm thinking of getting fb flex & fb abs and I was wondering if fb flex involved a lot of push-ups and fb abs involved a lot of crunches cause I hardly can do one full push-up and crunches really put a lot of strain on my spine.