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Atlas · Mid Back

Erector Spinae

Paravertebral aching along the thoracic spine worsened by sustained flexed postures

Body region
Mid Back · Lower Back
Trigger points
6
documented in this muscle
Common symptoms
28
patterns cataloged
Common causes
29
contributory factors

Trigger points

TrP 1

TrP1 (Thoracic)

Location. Along thoracic spine

Pain referral. Mid back, along spine

  • Mid back
  • Along spine
  • Rib area
  • Abdomen
TrP 2

TrP2 (Lumbar)

Location. Along lumbar spine

Pain referral. Lower back, buttock, hip

  • Lower back
  • Buttock
  • Hip
  • Posterior thigh
TrP 3

TrP3 (Thoracic)

Location. Iliocostalis thoracis, lateral to spine at T6-T9

Pain referral. Lateral mid-back and anterior chest wall

  • Lateral mid-back (T6-T9)
  • Anterior chest wall
  • Lateral rib cage
  • Epigastric region
  • Infrascapular area
TrP 4

TrP4 (Thoracic)

Location. Longissimus thoracis at T10-T12

Pain referral. Lower back and lower abdomen

  • Lower thoracic paraspinals
  • Upper lumbar region
  • Lower abdominal wall
  • Flank region
  • Posterior lower ribs
TrP 5

TrP5 (Lumbar)

Location. Iliocostalis lumborum near iliac crest

Pain referral. Buttock and posterior iliac crest

  • Buttock (upper quadrant)
  • Posterior iliac crest
  • Posterior superior iliac spine area
  • Lateral hip
  • Lower lumbar paraspinals
TrP 6

TrP6 (Lumbar)

Location. Longissimus lumborum at L3-L5

Pain referral. Deep low back and lower abdominal referral

  • Deep central low back
  • Lower abdominal wall
  • Sacral region
  • Posterior thigh (proximal)
  • Groin area (referred)

Symptoms patients report

Mid back pain. Paravertebral aching along the thoracic spine worsened by sustained flexed postures

Spinal tenderness. Localized sensitivity along thoracic spinous processes from erector spinae taut bands

Rib pain. Referred lateral chest wall discomfort from thoracic erector spinae trigger point radiation

Postural ache. Progressive thoracic discomfort developing during prolonged sitting or standing activities

Lower back pain. Bilateral paravertebral lumbar aching that intensifies with prolonged standing or sitting

Spinal stiffness. Restricted lumbar flexion and extension from erector spinae taut band resistance

Pain when bending. Sharp lumbar pain during forward flexion as erector spinae eccentrically controls descent

Morning stiffness. Lumbar rigidity upon waking from sustained recumbent muscle shortening during sleep

Mid-back pain radiating to chest. Iliocostalis referral travels along intercostal nerve pathways to anterior chest wall

Lateral rib aching. Taut bands in iliocostalis thoracis compress and irritate adjacent intercostal structures

Pseudo-cardiac chest pain. Referred pain to anterior chest mimics angina due to shared thoracic dermatomal innervation

Pain with trunk rotation. Rotational movement loads shortened iliocostalis fibers causing ischemic pain provocation

Difficulty with deep breathing. Taut bands restrict rib cage expansion limiting costal excursion during inspiration

Thoracolumbar junction pain. Trigger points at T10-T12 create localized deep aching at the thoracolumbar transitional zone

Lower abdominal ache (referred). Referral follows thoracolumbar nerve pathways projecting pain to the anterior abdominal wall

Pain at beltline. Longissimus fibers at T10-T12 refer pain horizontally at the waistline dermatomal level

Difficulty bending forward. Taut bands in longissimus resist lengthening during trunk flexion causing protective guarding

Stiffness in thoracolumbar transition zone. Sustained contracture at the T10-L2 junction restricts segmental mobility and flexibility

Low back pain radiating to buttock. Iliocostalis lumborum trigger points refer caudally into the ipsilateral upper gluteal region

Pain at iliac crest. Taut bands near the iliac crest attachment create localized periosteal tenderness and aching

Difficulty standing from seated position. Shortened iliocostalis fibers resist the lumbar extension required for sit-to-stand transitions

Unilateral low back ache. Asymmetric trigger point activation produces one-sided paraspinal pain mimicking facet pathology

Stiffness in the morning. Overnight immobility allows trigger point contracture to stiffen requiring gradual warm-up to resolve

Deep low back ache. Longissimus lumborum trigger points at L3-L5 create a deep central paraspinal aching pattern

Lower abdominal discomfort. Referred pain follows lumbar nerve root pathways projecting anteriorly to the abdominal wall

Pain bending and straightening. Taut bands resist both flexion lengthening and extension contraction creating bidirectional pain

Sacral aching. Caudal referral from L3-L5 longissimus projects pain into the sacral and lumbosacral region

Pseudo-visceral lower abdominal symptoms. Somatic referred pain mimics visceral pathology through shared segmental innervation patterns

Common causes

Poor posture. Sustained thoracic flexion eccentrically overloads erector spinae resisting forward gravitational pull

Prolonged sitting. Extended seated posture fatigues thoracic extensors maintaining upright spinal alignment

Lifting with poor form. Flexion-based lifting transfers excessive load to thoracic erector spinae muscle group

Weak core. Insufficient core stability forces erector spinae to compensate as primary trunk stabilizer

Scoliosis. Lateral curvature creates asymmetric loading on thoracic erector spinae muscle groups

Poor lifting technique. Flexion-based lifting transfers excessive compressive load to lumbar erector spinae fibers

Repetitive bending. Continuous forward bending fatigues lumbar erector spinae beyond metabolic recovery capacity

Obesity. Excess anterior body mass increases lumbar lordosis and erector spinae stabilization demand

Prolonged slouching. Sustained thoracic flexion overloads lateral erector spinae fibers causing ischemic contracture

Heavy lifting with rotation. Combined axial loading and rotation creates shear forces on iliocostalis thoracis fibers

Rowing with excessive trunk rotation. Repetitive rotational torque through thoracic spine overloads lateral paraspinal musculature

Sleeping on one side consistently. Sustained lateral flexion compresses ipsilateral iliocostalis creating chronic ischemic trigger points

Golf and racquet sports. Asymmetric high-velocity trunk rotation generates eccentric overload on contralateral erector spinae

Scoliosis or asymmetric posture. Chronic lateral spinal curvature maintains constant asymmetric loading on thoracic paraspinals

Heavy deadlifting. High axial compressive loads at thoracolumbar junction overload longissimus thoracis fibers eccentrically

Prolonged standing. Sustained antigravity loading fatigues thoracolumbar erector spinae creating ischemic trigger points

Poor seated posture. Excessive lumbar kyphosis shifts mechanical load superiorly to the thoracolumbar junction

Bending and twisting repeatedly. Repetitive combined flexion-rotation movements create cumulative microtrauma in longissimus fibers

Weak core stability. Insufficient transversus abdominis recruitment forces erector spinae to compensate for spinal stabilization

Transitional zone stress from lumbar hyperlordosis. Excessive lumbar lordosis concentrates mechanical stress at the thoracolumbar junction segments

Heavy lifting with poor form. Excessive lumbar flexion under load concentrates strain on iliocostalis lumborum muscle fibers

Gardening and yard work. Prolonged stooped posture with intermittent lifting overloads lumbar iliocostalis eccentrically

Asymmetric loading (carrying child on one hip). Unilateral hip hiking to support load creates sustained contraction in ipsilateral lumbar erectors

Leg length discrepancy. Chronic pelvic obliquity from unequal leg length asymmetrically loads lumbar paraspinal muscles

Weak gluteal muscles. Gluteal insufficiency forces lumbar erectors to compensate during hip extension movements

Chronic poor posture. Habitual lumbar flexion maintains longissimus in a lengthened position causing sustained low-grade strain

Repetitive bending and lifting. Cumulative eccentric-concentric loading cycles create microtrauma in longissimus lumborum fibers

Weak core and gluteal muscles. Inadequate stabilizer support forces longissimus to overwork for both stability and movement

Pregnancy-related postural changes. Anterior weight shift and increased lordosis amplify compressive load on lower lumbar extensors

Treatment & self-care

immediate

Tennis balls on either side of thoracic spine

Tape two tennis balls together or place them in a sock. Lie on your back with the balls positioned on either side of the thoracic spine (not directly on the spine). Gently roll up and down by bending your knees. Hold on tender spots for 20-30 seconds.

Duration
3-5 minutes
Frequency
1-2 times per day
Expect
Reduced paravertebral stiffness and improved mid-back mobility within 2-3 days
immediate

Moist heat on mid-back

Apply a warm, damp towel or heat pack along the mid-back beside the spine. Lie on your back with the heat underneath you. Relax completely and breathe deeply, allowing the warmth to penetrate the deep paraspinal muscles.

Duration
15-20 minutes
Frequency
2-3 times per day during flare-ups
Expect
Reduced mid-back muscle guarding within 10-15 minutes
exercise

Thoracic extension over foam roller

Lie on your back with a foam roller positioned across your mid-back. Support your head with your hands. Gently extend backward over the roller, opening up the chest. Hold for a few seconds, then return to neutral. Move the roller up or down one vertebral level and repeat.

Duration
10 repetitions at 3-4 levels
Frequency
2 times per day
Expect
Improved thoracic extension and reduced stiffness within 1-2 weeks
exercise

Thread-the-needle thoracic rotation

Start on all fours. Reach your right arm underneath your body toward the left side, rotating your thoracic spine. Follow your hand with your eyes. Hold for 5 seconds at end range, then reach the same arm up toward the ceiling, rotating the other direction. Repeat on both sides.

Duration
8-10 repetitions per side
Frequency
2-3 times per day
Expect
Improved thoracic rotation and reduced mid-back tightness within 1 week
lifestyle

Posture correction and movement breaks

Avoid prolonged sitting in one position. Set a timer for every 30 minutes to stand, extend your mid-back gently, and do 3 thoracic rotations to each side. Use a chair with good thoracic support or a lumbar roll to maintain spinal alignment.

Duration
30-second breaks every 30 minutes
Frequency
Throughout the workday
Expect
Reduced accumulation of mid-back tension and fewer pain episodes within 1-2 weeks
professional

Professional evaluation for persistent thoracic pain

If mid-back pain persists beyond 3-4 weeks or if the pain wraps around the ribs, consult a physiatrist. They can evaluate for thoracic disc problems, rib joint dysfunction, or other conditions and provide targeted trigger point treatment.

Duration
Initial evaluation: 45-60 minutes
Frequency
Follow-ups as needed
Expect
Accurate diagnosis and targeted treatment plan for persistent thoracic pain
immediate

Gentle knee-to-chest stretch

Lie on your back with both knees bent. Pull one knee toward your chest with both hands, keeping the other foot flat on the floor. Hold for 30 seconds, feeling a gentle stretch in the low back. Switch sides. Then pull both knees to your chest simultaneously.

Duration
30 seconds per side, then 30 seconds bilateral, repeat 3 times
Frequency
3-4 times per day, especially morning and evening
Expect
Reduced low back stiffness and improved lumbar flexion within 2-3 days
immediate

Heat application on lower back

Apply a warm heat pack or microwaveable pad across the lumbar spine. Lie on your back with the heat underneath you, or recline in a chair with the pack behind your low back. The heat should be comfortably warm, not hot.

Duration
15-20 minutes per session
Frequency
2-3 times per day during flare-ups
Expect
Reduced muscle guarding and improved mobility within 10-15 minutes
exercise

Bird-dog exercise

Start on all fours with a neutral spine. Extend your right arm forward and left leg backward simultaneously, keeping your back flat and hips level. Hold for 5 seconds, then return to start. Switch to left arm and right leg. Focus on maintaining trunk stability throughout.

Duration
10 repetitions per side, 2-3 sets
Frequency
2 times per day
Expect
Improved core stability and reduced erector spinae overload within 2-3 weeks
exercise

Pelvic tilts

Lie on your back with knees bent and feet flat. Gently flatten your low back against the floor by tilting your pelvis backward (tightening your abdominals). Hold for 5 seconds, then relax. This activates the deep core muscles and gently mobilizes the lumbar spine.

Duration
15 repetitions, 2-3 sets
Frequency
2-3 times per day
Expect
Improved lumbopelvic awareness and reduced low back pain within 1-2 weeks
lifestyle

Proper lifting mechanics and ergonomics

Always bend your knees and hinge at the hips when lifting, keeping the object close to your body. Never twist while lifting heavy objects. Use a lumbar support cushion in your chair. Alternate between sitting and standing every 30-45 minutes throughout the day.

Duration
Ongoing
Frequency
Daily — make these permanent habits
Expect
Significant reduction in low back pain flare-ups within 2-4 weeks
professional

Professional evaluation for persistent low back pain

If low back pain persists beyond 4-6 weeks of self-care, or if you experience pain shooting down your leg, numbness, or weakness, consult a physiatrist. They can assess for disc herniation, spinal stenosis, or facet syndrome and provide targeted trigger point treatment.

Duration
Initial evaluation: 45-60 minutes
Frequency
Follow-ups every 2-4 weeks as needed
Expect
Professional treatment combined with targeted exercise typically provides significant improvement within 4-6 weeks
Key Takeaways
  1. Paravertebral aching along the thoracic spine worsened by sustained flexed postures
  2. Localized sensitivity along thoracic spinous processes from erector spinae taut bands
  3. Referred lateral chest wall discomfort from thoracic erector spinae trigger point radiation
  4. Progressive thoracic discomfort developing during prolonged sitting or standing activities
  5. Bilateral paravertebral lumbar aching that intensifies with prolonged standing or sitting