To prevent the stronger leg from compensating for the weaker leg when you perform leg extensions using both legs, you can perform the exercise with less weight using one leg at a time. Developing equal strength in both legs is beneficial for athletes, such as runners and tennis players, who need good coordination between their legs.
To focus on strengthening the inner part of your quadriceps around the knees, you can pause for about 3 to 5 seconds while your legs are fully extended and then take about 5 seconds to slowly lower the weight. Since the inner part of your quadriceps around the knees tends to be weaker than the outer part of your quadriceps, this variation works well.
The leg extension focuses on your quadriceps and is one of the best ways to develop strong thighs. In addition to giving you stronger and more toned thighs, the leg extension helps strengthen your knee joints. You require the use of a leg extension machine to perform this exercise.
To ensure that you get the most out of performing this exercise, you should try to complete the full range of motion by raising the weight all the way up and lowering the weight all the way down. You should also make sure you concentrate on performing the movements slowly.
To prevent injuries, avoid jerking your legs up rapidly or locking your knees at the top of the movement. You should also avoid using more weight than you can control. If you are using too much weight, you may have a tendency to inadvertently slam the weight down onto the stack between repetitions.
Do not arch your back or raise your hips off the seat to help you lift the weight. Make sure your back and hops remain against the pads.
Do not jerk your legs up or quickly release the weight. Make sure you maintain a constant motion during the entire exercise.
Do not turn your toes in or out. Keep your feet straight as you perform the exercise.
