A25-year-old male who weighs 180 lb claims to lift 320 lb for 10 repetitions for the seated leg press but only completes 8 repetitions. given this information, what is his estimated 1 rm (1 repetition maximum)?

1 repetition maximum = 400 lb

Explanation:

given data

weighs = 180 lb

lift  = 320 lb

repetitions = 8

to find out

what is his estimated 1 repetition maximum

solution

we get here 1 repetition maximum that is express as

1 repetition maximum = w × ( )   .................1

here w is weight lift and r is complete repetition

put here value we get

1 repetition maximum =  320 × ( )

1 repetition maximum =  320 × 1.25

1 repetition maximum = 400 lb

answer(c); cultural values may have affected jack's grandmother's and aunt's belief about extended family;