Doing regular sit-ups incorrectly will guarantee two things.
They will make you a slower runner and give you chronic back pain.
This is the only progression I would ever recommend for special forces selection prep or BUDs. 
#situps #BUDs #military #pst #Navyseal #navy #specialforces
Негізгі бет The only sit-up progression useful for special operations and BUDs prep 
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