A functional training advocate would suggest that because running is an activity performed on one's feet, we should perform lunges (an exercise for the thighs and glutes) as they too are performed while standing. In truth, the runners goal should be to strengthen these muscles in the most effective means possible, which often involves sitting on a leg extension, leg curl or leg press machine.The point of training compound movements with free weights is not only to mimic a natural movement (although that's part of it), it's to maximize central nervous system and muscular recruitment and skeletal loading in a way that is not possible with machines. A proper barbell squat involves the glutes, quads, hamstrings, adductors, calves, rectus abdominus, erector spinae, obliques, and enough CNS involvement to keep your balance and control all of those. You will not find that with any machine.
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posted by Inspector.Gadget at 3:25 PM on April 21