Greg Ferenstein tries out Fitwall and talks with CEO, Josh Weinstein. Many earnest novice gym-goers have a commitment that won't outlast a green banana. One problem is that newbies exert themselves too much and drop their membership before their overly worked muscles have time to recover. On the other end of the six-pack spectrum, Brad Pitt-looking characters may skate by without breaking a sweat, and drop dead prematurely because they never knew they could work out harder. Fitwall, a new quantified gym in sunny San Diego, wants to ensure everyone is working out exactly hard as they should be.
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