Jun 11, 2019
By JoAnn Gerbasio, Certified Trainer
No matter how well you think you may be doing your lunges, this exercise is one that can eventually catch up to you. Ever notice time and time again after doing lunges you develop more pain or discomfort in the knees? Why is that?
The Forward Lunge
Knee pain after lunges is common for most people due to the increased stress placed on the knee. Pain can be described as sharp across the knee joint, more so on the anterior, medial aspect. This is primarily because there is increased eccentric loading on the quads on the front leg while trying to keep the trunk in an upright position. This load will cause strain on the patella tendon and surrounding ligaments. Repetitive motion will also cause stress on the distal end of the femur. Swelling may occur from the friction of the movement. There is so much around the knee, including ligaments, tendons, fascia and muscle all around the joint, that you are bound to aggravate something.
The forward lunge is taught in an upright position and straight spine. It involves core and hip stability during the dynamic movement. During the movement, being in this neutral position stimulates all portions of the quads. And because the quads are firing intensely, it causes a stress of pulling at the patella over and over with each repetition. This is why we begin to feel knee pain after doing lunge after lunge, day after day.
Reverse Lunge: The Alternative Approach
Just because lunges can possibly lead to pain, doesn't mean you have to go complete cold turkey on the lunge. With any exercise, there's always risk of injury. Therefore, a different approach can help lead to gains while decreasing this stress load. Which is where I bring you to the reverse lunge. But what is so different? Isn't this basically the same movement?
In actuality, it is not the same as a regular forward lunge. Even the smallest of alterations in body mechanics can make a huge difference. Starting position is identical, but instead there is a step backward. The front leg will remain stable in the hip and knee. This will be more of a closed chain exercise since it is already acting in a stable position. Step length and neutral spine is also similar in both exercises, however, the hip flexion angle and the position of the hip will be the key difference that may make this the better alternative.
Comparing the Two
When performing a reverse lunge, it is more of a hip hinge movement, activating more into the glutes and hamstrings than a forward lunge. It increases in hip flexion slightly, allowing the quad to be slightly on slack when the back foot is down during the lunge. This removes the strain placed on the patella and surrounding tissue.
As I've previously stated, there are so many different variations, rep schemes, and use of equipment when performing a lunge. You can go from bodyweight lunges, to lunges in the squat rack, to a Bulgarian split squat with a kettlebell. My advice is to always switch it up, whether it be in stance, high load, or increased weight. Equipment used can be dumbbells, kettlebells, barbells, or medicine balls. In regards to body position, you can change it up from weights/arms at side, barbell on the back, goblet position, overhead, or one arm opposite side. When lifting heavier loads, it is best to decrease reps and aim for 6-8 reps. At lighter loads, increase the reps for about 10-15 reps. And lastly, lunges should be performed 1-3 days a week, making sure to rest and recover in between days. Consistency is always key when strength training.
About Author: As a licensed Physical Therapist Assistant and certified trainer for over 8 years, JoAnn’s experience has allowed her to customize client programs. “I am a well rounded trainer and have worked with clients from teenagers to geriatrics.” Learn more about JoAnn at https://www.gerbasiofitness.com/single-post/2018/04/05/Reverse-VS-Forward-Lunges-Know-the-difference Experience: Physical Therapist, BA Kinesiologiest, CSAC Speed & Agility Instructor, TRX Suspension Trainer, Schwinn Spin Instructor.
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