Body-part split routines are a rite of passage for just about every lifter. You know, Monday chest day, Tuesday back day, Wednesday leg day etc. Most of the time, each major muscle group is targeted and hit on its own day and trained once every 7 days or so. It works. At least, it works for a while.

Few believe it, but you don't need barbells, dumbbells, or machines to build muscle; in fact, weight-training equipment often inhibits the process. 
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​You’ve probably noticed that not all muscular people sport the same physique. While there’re those whose muscles are hard and dense, others, although big, have softer muscles.
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Running has a reputation for causing wear and tear on knees over time, leading to joint pain, arthritis or other injuries. But a recent small study found that 30 minutes of running actually lowered inflammation in runners’ knee joints, leading many to question whether running really does increase a person’s risk for injuries—or if it helps prevent them.
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The warm up is the salad of exercise. It’s not very exciting, but you know it’s good for you and you should probably have it before you get to the meat and potatoes.

Luckily, with the increased popularity of functional training, a thorough dynamic warm up is commonplace in most gyms. But there’s a good chance you’re still making a handful of warm up mistakes. And I’m not talking the obvious ones like doing a couple arm swings and half-ass toe touches.
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Here are four common warm up mistakes that even more experienced lifters make:
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