![]() Remember, science, particularly in the area of sports and nutrition, is evolving rapidly. This subreddit is not a site for vetting only scientifically provable propositions. Don't devalue opinions and experience by dismissing them as "broscience". This subreddit is a community where those interested in the sport as defined here can share their opinions and experience as well as the science of the sport.There are other subreddits better suited to those just interested in staying fit or building a beach body or lifting weights. Bodybuilding is specifically defined for purposes of this subreddit as the sport that involves preparing yourself for a competition (includes bikini, fitness, figure and physique). Squats have always been used to help us develop power and force, so this is of no surprise.News, articles, pictures, videos & advice on everything related to bodybuilding - nutrition, supplementation, training, contest preparation, and more. More research is needed, but it’s an interesting observation.Īlso, they performed countermovement jump tests before and after the training, and the squat group improved their jump height by 3.9% whilst the leg extension group didn’t improve at all. Well, maybe leg extensions develop our quads from the middle up to our hips and the squats are better for developing our quads from the midpoint of our thighs down to our knees? The leg extension saw an increase in the vastus lateralis too, but up towards the hip instead. But not in the rectus femoris as we mentioned. Well, they saw a significant increase in the growth of their vastus lateralis, but only at the knee area (25%) and middle (50% up the leg). Ok, but what about the squat group? How did the vastus lateralis respond? So, the squats don’t work the rectus femoris well, but leg extensions do. No significant growth at any site of the rectus femoris. ![]() Starting with the leg extensions: they saw significant growth in the rectus femoris at ALL three areas! But the biggest growth was seen 75% up the leg near the hip. They used ultrasound to measure the rectus femoris and vastus lateralis at three different sites BEFORE the study and at its conclusion:Īnd they tried to measure the vastus medialis, but the images weren’t clear enough, so they had to throw them out. ![]() They rested three to five minutes between sets. When they did more than twelve reps per set, the weight was increased. The squats were parallel squats, and the leg extensions were performed using a full range of motion. They did so for three weeks, performing four sets of twelve reps to muscle failure each workout. Twenty-seven young men with strength training experience did either smith machine squats or leg extensions for five weeks. The study was conducted because emerging research suggests that any leg exercise doesn’t grow all the quadricep muscles – different leg exercises grow different parts better than others. Well, a recent study looked at just this. So, which quadriceps muscles are worked when we’re doing leg extensions and squats? ![]()
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