
Muscle activation is a process that identifies neuromuscular disconnects that prevent basic muscle activation and corrects them to restore optimal muscle performance. Muscles can become inactive due to various factors, such as overtraining, underuse, stress, physical trauma, or prolonged periods of inactivity. This can lead to a use it or lose it scenario, where the brain reassigns energy from unused muscles to other functions. To engage inactive muscles, one must first identify the specific muscles that are underactive. Once identified, one can perform specific exercises to reactivate these muscles, such as Arch & Flatten for the abdominals and back, or Hip Rotation and Iliopsoas Release for the hip flexors. It is important to start slowly and gently, gradually increasing the intensity of the exercises to avoid creating more problems.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Muscle reactivation is a clinical procedure to correct a muscle that cannot engage | Advanced Muscle Integration Technique (AMIT) is a process that rapidly restores neuromuscular communication |
| Muscles can switch off due to overtraining, underuse, stress, physical trauma, or recovery from surgery or injury | To reactivate, identify and pinpoint the inactive muscles and perform specific exercises to reactivate and strengthen them |
| Muscle activation or recruitment is the brain sending a signal via a nerve to the muscle to contract | Ensure a proper warm-up before engaging in muscle activation exercises to prevent injuries and prepare the muscles for more demanding exercises |
| Inactive muscles can be engaged by focusing on specific movements and isometric holds | Examples include Arch & Flatten, Imaginary Pull-up, and various yoga poses |
| It is important to pay attention to how inactive muscles are used during daily activities and workouts | Keep checking your posture and movement throughout the day to ensure proper muscle engagement |
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What You'll Learn

Identify neuromuscular disconnects
To identify neuromuscular disconnects, it is important to understand the concept of muscle reactivation, which involves pinpointing and reactivating muscles that have shut down due to intense demand, overtraining, underuse, or stress, among other factors. This process addresses neuromuscular disconnects that prevent basic muscle activation and restores communication between the brain and muscles.
One method to identify and address neuromuscular disconnects is the Advanced Muscle Integration Technique (AMIT), developed by Dr. Alan G. Beardall. AMIT is a rapid and effective procedure that can determine if your body is functioning correctly and reactivate inactive muscles. The test typically takes around 15 minutes, and the reactivation process usually takes 5-10 minutes.
Another approach to identifying neuromuscular disconnects is through clinical evaluation and diagnostic testing. This includes general and neurological physical examinations, as well as specific tests such as electromyography (EMG) and nerve conduction tests. These tests evaluate the health, function, and communication between skeletal muscles and peripheral nerves.
It is important to note that muscle reactivation is different from engaging muscles during physical activity or exercise. Reactivation focuses on identifying and correcting the underlying neuromuscular disconnects that inhibit muscle activation at a fundamental level. This distinction is crucial in understanding how to effectively engage inactive muscles and improve overall muscle performance.
Additionally, when identifying and addressing neuromuscular disconnects, it is essential to consider the role of stress. Prolonged stress can lead to muscle inhibition and protective splinting or spasms as a defence mechanism. Therefore, addressing stress-related factors and managing stress levels can be an important part of muscle reactivation and improving muscle function.
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Warm up slowly and gently
Warming up slowly and gently is crucial when engaging inactive muscles. This process prepares your body for more strenuous activity, making it easier and safer to exercise. A good warm-up should engage the same muscles that will be used during the main workout, but with lighter or modified versions of the exercises. For example, if you plan to run, start with a light jog to warm up your legs. If you're about to lift weights, perform a few lifts with very light weights first.
When activating inactive muscles, it's essential to start with gentle movements and exercises that slowly wake up the targeted muscle groups. For instance, the Arch & Flatten exercise gently activates the abdominals and back muscles. It involves hollowing out the belly to engage the transverse abdominis, which is rarely activated consciously.
Another example is the Hip Rotation, Iliopsoas Release, and Quadriceps Release, which are excellent for releasing hip flexors. This can be followed by the Back Lift, where you pay attention to engaging the gluteus maximus as you lift your leg. Remember to lift slowly and lower down even more slowly to fully release the muscles.
Additionally, simple movement patterns can help retrain your muscles. For instance, try bending over to pick up a light object from the floor. Focus on whether your hip creases and glutes engage, and repeat this movement slowly and gently to notice your natural pattern.
By warming up slowly and gently, you can effectively engage inactive muscles, improve your range of motion, enhance blood flow, and reduce the risk of injury.
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Release contractions slowly
When engaging inactive muscles, it is important to release contractions slowly. This is because, even though you are teaching yourself to activate and use these muscles, you do not want to build up excess muscle tension, which will happen if you focus only on the contraction phase.
The more fully you are able to release your muscles, the more you will be able to use them through their full range of motion. You will be able to fully contract when you need to and then fully release when you are done moving.
For example, when working on releasing your hip flexors, you can do the Hip Rotation, Iliopsoas Release, and Quadriceps Release. Then, do the Back Lift, paying attention to how your gluteus maximus engages as you lift your leg.
Another example is the Arch & Flatten, which will gently wake up your abdominals and back muscles. Flattening your back and hollowing out your belly is the best way to engage your transverse abdominis, which many people rarely engage consciously. After doing the Arch & Flatten, you may find it helpful to turn over and do the Back Lift to release your lower back muscles.
Remember, when you are working out or lifting heavy objects, you should take the time to consciously engage your abdominals to support you as you move. However, when it comes to your daily activities, there is no need to consciously contract your abdominals. Doing so will probably result in building up excess tension in your abdominals, eventually leading to shallow breathing and a rounded posture.
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Arch and flatten
To perform the Arch and Flatten, start by rolling your pelvis down the mat so that your tailbone presses into the mat. This will cause your back to arch and your paraspinal muscles to engage. As you arch, allow your belly and front body muscles to lengthen and release. You can place one hand on your belly to feel the abdominal muscles lengthening and the other hand under your back to feel the back muscles contract.
Next, slowly release out of the arch, back to rest, and pause your breathing. Feel the lengthening of your back muscles as they go from contracted and hard to lengthened and soft. Pause at the end of the release to allow your brain time to integrate the movement.
Then, roll your pubic bone upwards towards your chin as you draw your ribcage towards your pubic bone. This action will create a flattening of your back and an engagement of your abdominal muscles. Place both hands on your abdominal muscles to feel them contracting.
After performing Arch and Flatten, you may wish to turn over and perform the Back Lift to release your lower back muscles, followed by Curl exercises to work your rectus abdominis and obliques. Remember to always warm up slowly and gently before performing any strengthening exercises.
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Bridge position
The bridge position is a great way to engage inactive muscles and increase stability in your core. It is a common back flexibility goal and can be achieved through a simple progression of pose variations.
To begin, lie on your back with your knees bent and feet flat on the ground, about hip-width apart. Your fingertips should be placed by your ears, with palms facing down, and elbows pointing up. Engage your abdominal muscles by sucking your belly button towards your spine. Press into your palms to lift your body, lowering the crown of your head back towards the floor as you do so.
Keep your abdominals engaged to prevent excessive arching of your back. You can also try to keep your arms at your sides to support your weight. The goal is to form a straight line from your knees to your shoulders, similar to an upside-down plank position. Hold this position for 5-15 seconds, breathing throughout, and slowly lower your hips back to the floor.
Once you are comfortable with this basic bridge, you can try more challenging variations. For example, the single-leg bridge, where one leg is bent and the other is pointed straight up, or the elevated bridge, where you begin with an exercise ball at your feet, placing your heels on top of it.
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Frequently asked questions
Muscle reactivation is a clinical procedure that identifies neuromuscular disconnects that prohibit muscle activation and corrects the muscle so that it can engage and perform normally again. This can be done through the AMIT (Advanced Muscle Integration Technique) method.
Here are some exercises to engage commonly inactive muscles:
- Arch & Flatten: Lie on your back, hollow your belly, and flatten your back to engage your abdominal and back muscles.
- Back Lift: Lie on your back and lift your leg to release your lower back muscles and engage your gluteus maximus.
- Imaginary Pull-up: Start at the top of an imaginary pull-up, pull your shoulders down, and pull your hands toward your armpits and your elbows toward your hips to engage your upper back.
- Table-top position: Squeeze your heel toward your butt and then press it up and over to the opposite side to engage your buttocks.
- Plank: Start in a plank on your palms, lower down to a forearm plank, and return to a high plank to engage your triceps, chest, serratus, shoulders, and core.
To prevent muscle inactivity, it is important to reduce sedentary behaviour and engage in regular physical activity. Incorporating muscle activation exercises into your routine can also help to improve muscle performance and prevent injuries.











































