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The Top Eight Most Underactive Muscles in the Human Body

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In both the Clinic and Exercise branches of Range of Motion I see very common and repeated patterns of muscle weakness and under-activity. These patterns are indicative of both lack of physical activity and a poor balance to exercise programming.

Untreated, these imbalances lead to musculo-skeletal injury, pain, dysfunction and loss of physical performance.

To remedy the most common deficiencies, I reveal the top eight:

Working from the feet and moving upwards:

 

Muscles involved in:

Keeping the patella (kneecap) tracking medially: Vastus Medialis.

Why are they important?

  • They keep the patella aligned. Malalignment causes maltracking of the patella and can lead to pain and damage to cartilage.

What's a good way to fix them?

  • Full depth squats with good technique (breaking back through the hips not forward through the knees).
  • Theraband Knee Locks

 

Muscles involved in:

Hip Flexion: Psoas, Rectus Femoris.

Why are they important?

  • They help to stop the pelvis from 'tucking under' (posterior pelvic tilt) during squat and deadlift based movements.

What's a good way to fix them?

 

Muscles involved in:
Laterally Rotating and abducting the femur: Gluteus Medius.

Why are they important?

  • They prevent maltracking of the patella and lower limb musculature imbalance. Also play a role in stabilising the pelvis, reducing injury to the lower back and increasing power production.

What's a good way to fix them?

  • Gluteus Medius Squats (I never prescribe any isolation exercises for the hips - it's like trying to get better at a clean and jerk by doing lateral raises).

 

Muscles involved in:
Extending the hip: Gluteals and hamstrings.

Why are they important?

  • The posterior chain of muscles is the most important muscle group in creating all effective athletic and functional movement patterns.

What's a good way to fix them?

 

Muscles involved in:
Stabilising the spine under load: Muscles of the torso, including those of the abdominal wall, hips, lower and mid back.

Why are they important?

  • Neutral spine is the single most important element of complex movement for injury prevention and performance enhancement.

What's a good way to fix them?

  • Heavy deadlifts with faultless technique.

 

Muscles involved in:
Stabilising the Scapulae: Traps, serratus anterior, rhomboids.

Why are they important?

  • They create stability through the scapulae to more efficiently create strong and safe movement.

What's a good way to fix them?

 

Muscles involved in:
Elevating the Scapula: Upper trapezius, levator scapulae.

Why are they important?

  • An elevated 'active shoulder' during overhead movements builds strength and reduces injury.

What's a good way to fix them?

 

Muscles involved in:
Pulling the arms backwards (horizontal abduction): Posterior deltoids.

Why are they important?

  • We spend most of our day with a 'frontal fixation', bent over a keyboard, trolley, child, steering wheel or chopping board. We need these muscles to keep our posture sound.

What's a good way to fix them?

 

Give these a whirl. If you suffer from pain or movement dysfunction, get in touch with Range of Motion to arrange a consultation.

Dan Williams
DIRECTOR - Range of Motion
Accredited Exercise Physiologist
Accredited Exercise Scientist
Level One CrossFit Coach 

 

 

   Dan Williams

   BSc., BEx. Rehab. Sc., AEP, AES, MESSA 
   DIRECTOR - Range of Motion
   Accredited Exercise Physiologist
   Accredited Exercise Scientist
   Level One CrossFit Coach and CrossFit Affiliate Owner

   Contact Dan Williams