Great legs aren’t just for show. Training the quadriceps muscles should be an integral part of your fitness routine since they are important for virtually every lower body movement.
The quadricep group (quads) is made up of four muscles that run along the front of the thigh. (Specifically, they are the Quadriceps femoris group comprised of the rectus femoris, vastus intermedius, vastus medialis, vastus lateralis.) They all share the quadriceps tendon that encloses the kneecap, and these muscles have one primary function: to extend and straighten the leg.
Yet, a strong set of quads also helps to protect your hips and knees, and toning these big muscles will have a tremendous effect on your appearance.
Exercises to tone the quad group
Whether you want to become a better runner, protect your knees or develop better-looking legs peeking out from under shorts or a miniskirt, try these exercises. The three most common quadriceps exercises are step-ups, lunges and squats.
Begin your workout with the step-ups. Repeat the exercise to fatigue. Move directly to lunges and perform 12 to 20 reps. Then move on to squats and do 12 to 20 reps. For the lunge and the squat, you can use hand weights to increase intensity. Repeat the entire set two or three times depending on your level of fitness.
Step-ups – Place your right foot on a step and your left foot on the floor. Push off as little as possible with the left foot as you step up. (You’ll now have two feet on the step.) Lower your left foot back down to the floor. Work with body weight only, and repeat to muscle fatigue regardless of the number of reps. Step-ups are a great toning exercise, and they also serve as a warm-up for lunges and squats.
Lunges - Step forward with one leg. The back heel can lift off the ground as the weight of the body is over the front foot. The front knee should not be further forward than your toes and the back knee can be dropped as low as the ground, but don’t rest it on the ground. When you have reached a comfortable position try holding there for a few seconds. Return to the upright position with your feet side by side. Repeat the exercise five times, then change legs. You can also do this exercise with a dumbbell in each hand.
The following squat exercises are good because they hit all “four heads” of the quadriceps-the rectus femoris and vasti muscles: lateralis, medialis and intermedius. The rectus femoris runs down the center of your thigh and functions as both a hip flexor and a knee extensor. It crosses your knee and hip joints, attaching at your pelvis and below your kneecap. The vasti muscles-the lateralis and medialis (on either side of your knee) and the intermedius (beneath the rectus femoris)-run from the top of your thigh down to the knee and work only to extend your knee. Squats are the main muscle bulking exercise for the quads and there are many variations using machines, free weights, wall sits, and the floor. Here are a few examples:
Floor Squats – Stand with your feet shoulder-width apart, your arms at your side. Inhale and swing your hands slightly forward for balance while bending at the knees and hips to a sitting position. Your butt shouldn’t drop below the level of your knees and your knees should not extend past your toes. Exhale and slowly return to a standing position, dropping your hands to your sides. Repeat to fatigue. You can also use dumbbells with this exercise.

Seated Leg Press and Leg Press Sled – With your feet placed in the center of the foot plate about shoulder-width apart, exhale and push on the foot plate, fully extending the sled. Do not straighten the knee so that it locks into extension; also don’t bend the knee into your chest. You can vary the position of your feet on the foot plate to adjust the muscles being worked; place your feet at the top, middle and lower part of the plate, in order to work all of your quadricep muscles. Choose a weight that allows you to do 12 to 20 repetitions comfortably.
Wall Slide – Stand with your back against the wall with your feet shoulder-width apart, about foot away from the wall. Bend your knees to a half-squat position, keeping your back in contact with wall and your heels on the ground. Lower yourself to a 60 degree angle; pause, then lower another two inches down. You should be about thigh parallel now. This exercise can be even more effective when doing it with one leg at a time and should be performed until the legs are fatigued. Make sure that your gluts and stomach are held tight.
You can also use a large Swiss ball pressed between your back and the wall. Use the same guidelines as above, keeping your back in contact with the ball while it travels freely up and down the wall.
One Leg Dumbbell Squats – Position yourself with one foot firmly placed on a step box, in order to increase the range of movement for the exercise, or you can simply bend one leg. Holding onto either a chair, or keeping your hands against a wall, lower yourself down, keeping your back straight and head up. When doing any squat-style exercise, you need to avoid extending your knee past your toes, and focus on taking your butt to the floor rather than bending your leg. Repeat to fatigue doing 12 to 20 reps.
Heels Raised Squats – Performing squats with your heels raised one to two inches on a solid platform will force your quadriceps to work through a different range of motion, as your knees are extended pass your toes. For good balance you should aim to perform this method with your legs wide, with a bar placed behind your neck, also in a wide arm grip. Keep your back straight, contract your buttocks, and push down with your heels to smoothly lift yourself back up to the starting position. Repeat for desired amount of reps.
And the machines…


The Leg Extension machine is a better exercise for toning than for bulking up. The Leg Curl is best to do last in a sequence of three exercises, after the squat and the leg press.
The leg extension machine is a safe quadriceps exercise for most people who don’t experience ACL problems in their knees.
Use a variation in strength exercises such as dumbbell lunges, barbell step-ups, and single leg squats which are much better choices since they are kinetic chain exercises. The only athletic movement the leg extension is functional for is kicking, which requires a powerful isolated quadriceps contraction.
The adductor and abductor machines will work your inner and outer thighs, but those are smaller muscle groups. Concentrate on the larger leg muscles to improve the firmness of your legs.
To really shape and define your thighs, it’s important to utilize all four quad muscles in your workouts. If you typically use only the leg-extension machine at your gym, you’ve been working these muscles solely as knee extensors, without involving the rectus femoris as a hip flexor, missing a chance to shape and tone your thighs.
If your goal is to sculpt a long lean body from the waist down, then concentrate on doing high reps combined with low weights which will build endurance but won’t create a gain in muscle mass. Moves such as squats and step-ups allow you to put even more emphasis on the lateral and medial quad muscles for the most visible results.
When Your Quads Take Out Your Knees
Many runners complain about achy knees and one of the best ways to prevent knee injuries, or to protect an already injured knee (e.g., a torn meniscus or degenerative joint disease), is to build up the quads. If this describes you-if you ache under the knee-cap, and it hurts to straighten your knee after it’s been bent for awhile-maybe your knees aren’t the problem.
Patello-Femoral Syndrome (PFS) is a condition caused by the patella (knee cap) not tracking properly over the thigh bone. The patella normally rides in a groove on the femur, and gives leverage to the quads on the front of the thigh. With PFS, the outside quad muscle overpowers the inner medial muscle, and this pulls the patella out of its groove.
If you’ve got knee pain after exercising, it could mean your quads are tight, and doing some serious stretching after your workout may help. Give it a try. Your knees will thank you for it.
Stretch the Thighs After Your Workout
The exercises listed above are likely to cause stiffness in the quartets. If you work these muscles without also stretching them they’ll get short and tight pretty quick, so do the classic quad stretch: stand straight and grab hold of a stationary object for balance. Grab the right ankle with the right hand and pull upwards toward the buttock, keeping the knees together, the hips rotated forward, the trunk fully upright and the standing foot pointed forward. Hold for the pose for at least 15 seconds. Then repeat on the left side.
Stretch Stretch Stretch!!
People are so crunched for time that they just want to get their workout over with and they don’t realize how important a few minutes of stretching the quads mean to the knees. Plan on spending just 5 to 7 minutes stretching both before and after exercise or activity, and you’ll find it helps prevent soreness and injury, and will enhances muscle tone to give your thighs a more sculpted look.