Get some kick-butt moves (and tips and tricks!) from the fit pros behind these insanely motivating Instagram accounts. Need some fitness motivation, or looking for challenging new moves to add to your workout routine? Look no further than Instagram. From celebrity trainers to former pro runners, there are tons of influencers on the social media platform to help inspire your next sweat session. We love that these social media stars share tips and tricks about everything from their favorite HIIT moves to the best new running shoes to body-positive snaps. Here, our top five fitness feeds to follow in 2017. 1:Lita Lewis Follow her: CLICK HERE! With her body-affirming quotes, killer strength-based moves, and her empowering hashtag #thickthighssavelives, this trainer is just the dose of fitspo you need. 2:Julia Lucas Follow her: CLICK HERE! The pics from this Nike+ Run Club coach and former pro runner prove pounding the pavement is fun, but it's her captions about trai...