Diastasis Rectus- Navigating the Ins & Outs: Part 1

What is Diastasis Rectus Abdominis?

Diastasis Rectus Abdominis (DRA) is caused when the rectus abdominis muscles (two large, superficial, parallel bands of muscles commonly referred to as the 6-pack) become separated by a larger distance than normal. Diastasis recti occurs when the linea alba, a collagen structure of connective tissue, is no longer able to provide stability and appropriate tension.

In the pregnant or postpartum mom, DRA is commonly noticed when the abdominal muscles are firing in a non-optimal pattern. This is seen as “tenting” or “coning” of the abdomen that is often seen when women are going from lying down to sitting up or when exercising. Even at rest, DRA may be noticeable as it is commonly nicknamed “mummy tummy” or “mommy pooch” as even after a mom has lost the baby weight her stomach may not appear skinny due to a DRA.

How common is DRA?

According to a study, the prevalence of DRA decreased from 100% at 35 weeks gestation to 39% at 6 months postpartum.¹That means that 100% of women have some level of DRA in their third trimester. One study showed the prevalence of DRA above the umbilicus was 68% and 32% below the umbilicus. While there was no difference the DRA above the umbilicus, the DRA below the umbilicus was greater in women who had given birth more than once.⁶

It’s important to note that at 6 weeks postpartum 60% of mothers had a DRA, 45.5% at 5 months postpartum and 32.5% at 12 months postpartum.⁷ A different study showed that 36% of postpartum mom’s rectus abdominis remained abnormally wide at 5–7 weeks postpartum.¹¹

Furthermore, diastasis recti and pelvic floor problems tense to go hand-in-hand and 66% of women with a diastasis recti have some level of pelvic floor dysfunction whether it be inconinence or pelvic pain.^5,7

When can I check for a Diastasis Rectus?

Since almost all moms have some degree of abdominal separation, it is important to act as if you have a separation until at least 6 weeks postpartum. Remember, 60% of mothers have a DRA at 6 weeks postpartum and 32.5% continue to have a DRA after one year. It is safe to assume (and act/exercise as though) you have an abdominal separation until 6 months postpartum.

How do I measure for a DRA and what is normal?

Mota found that “palpation has sufficient reliability to be used in clinical practice.”² The following is how to palpate for a DRA and what is considered “normal” for a diastasis rectus abdominis.

First, lay on your back with your knees bent to a 45 degree angle with your feet resting gently on the ground. Next, make sure you are in a neutral position so your low back has a gentle curve and your butt is untucked.  Then as you exhale, gently lift your head and shoulders off the floor, tucking your chin and use your index finger and middle finger to measure based on the following palpation:

1. Location and width - there are three locations to palpate for a DRA and width is measured from side-to-side in fingertip width:¹⁰
   1. Just above the umbilicus: 2.7cm is normal (at most 2 fingertip widths)
   2. Midway between the pubic symphysis and the umbilicus: .9cm is normal
   3. Midway between the umbilicus and xyphoid process: 1.0cm
2. Depth or tension of the linea alba
   1. The linea alba is connective tissue and should be both strong and taut. There should be some natural flexibility but the tissue should resist the pressure of your fingers.
   2. If the linea alba is not able to optimally contract, you will feel as if your fingers are sinking in deeper when light fingertip pressure is applied.
   3. Depth can be measured as fingertip, knuckle or even finger depth or more specifically:
      1. Shallow: 0-3cm
      2. Medium: 3-6cm
      3. Deep: 6-7cm

*One other thing to look for as you lift your head is tenting or coning of the abdominal musculature. Although this is not specific to a diastasis rectus abdominis, it is commonly a sign that you are recruiting the wrong abdominal musculature and indicates instability that may need to be addressed.

How frequently can I check my DRA?

Not too often!  Checking too frequently can actually damage the tissue and weaken the muscles which makes the gap worse! If you “have to know” the most frequently you should check for a DRA is 4-6 weeks....give yourself time to heal from the inside out!

Keep an eye out for Diastasis Rectus- Navigating the Ins & Outs: Part 2 - The Causes of DRA

References:

1. Mota P, Pascoal AG, Carita AI, et al. Prevalence and risk factors of diastasis recti abdominis from late pregnancy to 6 months postpartum, and relationship with lumbo-pelvic pain. Man Ther 2015;20:200–5.
2. Reliability of the inter-rectus distance measured by palpation. Comparison of palpation and ultrasound measurements. Mota, Patrícia et al. Manual Therapy , Volume 18 , Issue 4 , 294 - 298
3. Corrêa MC, Corrêa MD. Puerpério. In: Corrêa MD, editor. Noções práticas de obstetrícia. 12ª ed. Rio de Janeiro: Medisi; 1999. p. 95-104.
4. Gilleard WL, Brown JM. Structure and function of the abdominal muscles in primigravid subjects during pregnancy and the immediate postbirth period. Phys Ther. 1996;76(7):750-62.
5. Spitznagle TM, Leong FC, Van Dillen LR. Prevalence of diastasis recti abdominis in a urogynecological patient population. Int Urogynecol J Pelvic Floor Dysfunct. 2007;18(3):321-8.
6. Rett, MT, Braga, MD, Bernardes, NO, & Andrade, SC. (2009). Prevalence of diastasis of the rectus abdominis muscles immediately postpartum: comparison between primiparae and multiparae. Brazilian Journal of Physical Therapy, 13(4), 275-280. Epub August 21, 2009.https://dx.doi.org/10.1590/S1413-35552009005000037
7. Sperstad JB, et al. Br J Sports Med 2016;0:1–6. doi:10.1136/bjsports-2016-096065
8. Boissonnault JS, Kotarinos KR. Diastasis recti I. In: Wilder E. ed. Obstetric andgynecologic physical therapy. New York: Churchill Livingstone, 1988:63–81.
9. Boissonnault JS, Blaschak MJ. Incidence of diastasis recti abdominis during the childbearing year. Phys Ther 1988;68:1082–6.
10. Rath, A.M., Attali, P., Dumas, J.L., et al., 1996. The abdominal linea alba: an anatomo-radiologic and biomechanical study. Surgical Radiologic Anatomy 18, 281–288.
11. Coldron, Y., Stokes, M.J., Newham, D.J., Cook, K., 2007. Postpartum characteristics of rectus abdominis on ultrasound imaging. Manual Therapy. Epub.

*Disclaimer:

The information by Dr. Lauren Keller of Elemental Chiropractic, Inc. is provided for general information only and should in no way be considered as a substitute for medical advice or information about any particular condition. While every effort has been made to ensure that the information is accurate, Dr. Lauren Keller nor Elemental Chiropractic, Inc. make no warranties or representations as to its accuracy and accept no responsibility and cannot guarantee the consequences if individuals choose to rely upon these contents as their sole source of information about a condition and its rehabilitation. If you have any specific questions about any medical matter or think you may be suffering from any medical conditions, you should consult your doctor or other professional healthcare provider. You should never delay seeking medical advice, disregard medical advice, or discontinue medical treatment because of information on this website.

The Core Muscles of Core Exercise (aka…an Anatomy Lecture)

Understanding the Anatomy of Core Exercises

The Core Muscles of Core Exercise (aka…an Anatomy Lecture)

New Years is coming up so you are probably seeing the swarm of advertisements saying “New Year, New You” or “get your body beach ready”. When we talk about core exercises it’s important to remember what exactly makes up that core. When talking about the core a lot of  people think about the fancy six-pack muscles but there’s so much more than that. So here it goes…the core is comprised of the following:

Diaphragm

• What does it attach to?Lumbar vertebra (1-3)
  • Lower 6 ribs
  • Back of sternum & xiphoid process
• Function?
  • Concentrically contracts and lowers on inhalation
  • Eccentrically contracts and rises on exhalation
  • Helps mobilize the ribs, lumbar spine and thoracic spine

Multifidus

• What does it attach to?
  • Vertebra from sacrum to skull
• Function?
  • Important role in stabilizing the joints within the spine
  • Supports and protects the spine and pelvis to prepare movement of limbs
  • Commonly inhibited in pain

Abdominal Raphe (Linea Alba & Linea Semilunaris)

• What does it attach to?
  • Runs along anterior abdominal wall connecting xiphoid with pubic symphysis and crest
  • Receives attachment of obliques and transverse abdominis
  • Extends from cartilage of 9th rib to pubic bone
• Function?
  • Mostly collagen connective tissue

Rectus Abdominis (the six-pack…actually the eight-pack, but who is counting?)

• What does it attach to?
  • Arises from pubic symphysis and runs vertical to typhoid and costocartilage of 5th and 7th ribs
  • Contained in rectus sheath (which is derived from external obliques, internal obliques and transverse abdominis)
• Function?
  • Important in forced exhalation
  • Helps with strength termination

External Obliques

• What does it attach to?
  • 5th-12th ribs
  • Connects with fibers of serrates anterior and latissimus dorsi
  • Connects to iliac crest
  • Crosses the pubic symphysis
• Function?
  • Stabilize the pubic symphysis (with anterior pelvic floor muscles)

Internal Obliques

• What does it attach to?
  • Connects to thoracolumbar fascia posteriorly (via transverse abdominis tendon)
  • Connects to anterior iliac crest and lateral inguinal ligament
  • Posterior fibers connect to 11th and 10th ribs
• Function?
  • Accessory muscle of respiration
  • Forms inguinal ligament with transverse abdominis
  • Rotates and side-bends the trunk by pulling the rib cage and midline towards the hip and lower back, of the same side with contralateral external oblique

Transverse Abdominis

• What does it attach to?
  • Connects to thoracolumbar fascia with tendon and iliac crest
  • Connects to the lower 6 ribs and lateral aspect of inguinal ligament
  • Inserts into linea alba
• Function?
  • Forms inguinal ligament with internal obliques
  • Helps support the spine and internal organs

Psoas

• What does it attach to?
  • All lumbar vertebra bilaterally
  • Lateral edges of vertebra from T12-L4 (and intervertebral discs!)
  • Lesser trochanter of femur
• Function?
  • Stress response shortens the psoas
  • Affects structural balance
    • Commonly seen in an anteriorly tilted pelvis and/or rib thrusting

Pelvic Floor

• Function?
  • During breathing, raises and lowers synergistically with the diaphragm
  • Works to control the spine and pelvis by offering support for abdominal and pelvic organs
  • Supports the urethral and anal sphincters (what you pee and poop out of)

Superficial Pelvic Floor

• Composed of bulbocavernosus, ischiocavernosus, superficial transverse perineal, external anal sphincter
• Function?
  • In women, it contributes to clitoral erection and orgasm
  • Helps empty the canal of the urethra

Deep Urogenital Diaphragm Layer

• Composed of deep transverse perineal
• Function? Supports central tendon of perineum through perineal body

Pelvic diaphragm

• Composed of levator ani (pubocococcygeus, iliococcygeus, coccygeus), piriformis, obturator internus
• Function?
  • Support pelvic viscera
  • Closes back part of pelvic outlet
  • Keeps vagina and rectum closed
  • Facilitates birth

Up Next? Learn about the The Hows and Whys to Working that Sexy Core!

Understanding the Different Breathing Options

Understanding the Different Breathing Options

When researching pregnancy and postpartum breathing as well as proper breathing when lifting, we run across three main types of breathing- abdominal hallowing, piston breathing, and diaphragmatic breathing. Each have their pros and cons and which is why understanding the different breathing options is an important aspect in knowing WHY we are doing something (#knowbetterdobetter).

Why the breath matters

Breathing matters because the breath is the key to a strong and stable core and body is the ability to create pressure, specifically intra-abdominal pressure (IAP), within the abdomen. IAP is fundamental in the initiation, control and prevention of movement.

Want the science on why Intra-Abdominal pressure is a GOOD thing, check the previous blog post, "For the love of all things good, stop sucking in."

Abdominal Hallowing / Sucking-In / Belly Button to Spine

Abdominal hallowing was previously mentioned in this blog but here's a quick breakdown...

Pros:

• Activates the transverse abdominis

Cons:

• Isolates the transverse abdominis through concentric contraction and separates the diaphragm and pelvic floor
• Inhibits activation of abdominal oblique musculature
• Sub-optimally strengthens the abdominal musculature through concentric contraction
• Creates oblique position of diaphragm and pelvic floor (see consequences of less than optimal breathing below)
• Not replicated in any functional movement

Piston Breathing

Pros:

• Helps one connect with the pelvic floor
• A great start: more beneficial long-term than abdominal hallowing and chest breathing as it focuses on trying to connect the diaphragm and pelvic floor
• Focuses on proper posture/alignment as well as breathing
• Pulls the breath out of the chest and into the belly, which is where one wants/needs to breath

Cons:

• Piston breathing implies unidirectional pressure with tight sides...when taught it typically includes something along the lines of "we quickly and forcefully draw the breath into the belly"
  • This is not functional as one does not isometrically contract to breathe and move throughout the day
  • The breath should never be "forceful"
• The pelvic floor and diaphragm should never be working separate of the abdominal musculature as this can create additional dysfunction
  • One does not want to tighten the abdominal musculature in preparation of the inhalation as this separates the co-contraction activation that should occur
  • The breath should create an eccentric activation of the abdominal muscles which then allows the muscles to tighten/loosen as they need in order to regulate the internal pressure

Diaphragmatic Breathing

Pros:

• The diaphragm, all abdominal musculature and the pelvic floor co-contract in coordination to create appropriate intra-abdominal pressure (IAP)
  • IAP is what gives one strength and stabilizes the core to protect the spine from injury
  • Coordinated co-contraction keeps the pelvic floor, diaphragm and musculature working in unison, which is the basis for optimal breathing (see below consequences of less than optimal breathing) (6, 7)
  • Optimal movements - if you want to strengthen the glute med you would pick a single-leg deadlift over a clam shell, the diaphragm is no different
• Creates 360 degrees of expansion to stabilize the abdominal musculature, back musculature and pelvic floor
• Focuses on proper posture in both standing and seated position (4, 5, 13)
• Replicated in day-to-day function

Cons:

• It may initially feel forced until the proper breathing patterns are learned
  • The goal is to make the breath more automatic/reflexive and a habit...when initially learning to do diaphragmatic breathing, it may feel a little forced as one is not accustomed to breathing in this manner and it takes time to train the proper breathing mechanics
• It may be difficult to learn due to compensation that has been trained throughout the years
  • One way to help learn the breathing easier is to utilize the Core360 belt which helps one activate their core correctly and consistently

Consequences of less than optimal breathing

Less than optimal breathing often leads to a functional cascade of complications/pain or faulty movement patterns. Some of those consequences include:

1. Oblique position of diaphragm & pelvic floor which can create/may lead to:

   

   • Increased lumbar lordosis and increased intra-fiscal pressure: more likely to  ave back pain or disc injury, chronic back tightness and hyperactivity of lumbar erectors
   • Lumbopelvic and hip instability : hamstring pain with bending and sitting, trigger points in low back, buttock and upper hamstring (14, 15, 16)
   • Anteverted pelvis: can lead to butt-wink in squat (8, 9, 10)
   • Poor thoracic extension and scapular stability: more likely to have shoulder and upper back/neck pain
2. Non-coordinated co-contraction of diaphragm, pelvic floor and abdominal musculature:Weak abdominals: the abdominal wall does not offer resistance to the diaphragm contraction which does not allow for appropriate IAP
   • Tight abdominals: the abdominal wall is too tight and the diaphragm and lower ribs cannot move downward to create ideal diaphragm activation and IAP
3. Secondary effects:
   • Pelvic organ prolapse and urinary/fecal incontinence (3, 11)
     • Often caused by a lack of tonic support and muscular strength of the pelvic floor, core and surrounding pelvic girdle musculature (1)
   • Increased risk of diastasis recti
   • Increased risk of disc herniation (14, 15)
   • Upper back and neck pain (18)

Benefits of proper diaphragmatic breathing

1. Improves core stability 
   • Coordinates and strengthens all components of the deep core musculature – pelvic floor muscles, transverse abdominals, multifidi, and diaphragm (2)
   • Contracting the diaphragm increases intra-abdominal pressure and generates a co-contraction of the pelvic floor muscles (pubococcygeus, puborectalis, and iliococcygeus) and transverse abdomens (17)
2. Decreased neck and shoulder pain (21)
   • Improved function of Sternocleidomastoid muscle which may decrease ringing in the ear (19)
   • Decreased use of pectoralis and scalenes which are commonly recruited in faulty breathing patterns (20)
3. Improved ventilation of the lungs (22, 23)
   • Increasing the inspiratory volume naturally increases the level of oxygen in the blood
   • Maximize the diaphragm's efficiency in performing breathing activity

References:

1. Sapsford R. Rehabilitation of pelvic floor muscles utilizing trunk stabilization. Man Ther. 2004;9(1):3-12.
2. Lee DG. The Pelvic Girdle: An integration of clinical expertise and research, 4e. Churchill Livingstone; 2010.
3. Wei, J.T. and DeLancey, J.O. Functional anatomy of the pelvic floor and lower urinary tract. Clin Obstet Gynecol. 2004; 47: 3–17
4. Sapsford RR, Richardson CA, Maher CF, Hodges PW. Pelvic floor muscle activity in different sitting postures in continent and incontinent women. Arch Phys Med Rehabil. 2008;89(9):1741-1747.15.
5. Sapsford R. R., Hodges P. W., Richardson C. A., et al. Co-activation of the abdominal and pelvic floor muscles during voluntary exercises. Neurourology and Urodynamics. 2001;20(1):31–42.
6. Bø K. Urinary incontinence, pelvic floor dysfunction, exercise and sport. Sports Medicine. 2004;34(7):451–464. doi: 10.2165/00007256-200434070-00004.
7. Pereira L. C., Botelho S., Marques J., et al. Are transversus abdominis/oblique internal and pelvic floor muscles coactivated during pregnancy and postpartum? Neurourology and Urodynamics. 2013;32(5):416–419. doi: 10.1002/nau.22315.
8. Soljanik I., Janssen U., May F., et al. Functional interactions between the fossa ischioanalis, levator ani and gluteus maximus muscles of the female pelvic floor: a prospective study in nulliparous women. Archives of Gynecology and Obstetrics. 2012;286(4):931–938. doi: 10.1007/s00404-012-2377-4.
9. Capson A. C., Nashed J., Mclean L. The role of lumbopelvic posture in pelvic floor muscle activation in continent women. Journal of Electromyography and Kinesiology. 2011;21(1):166–177. doi: 10.1016/j.jelekin.2010.07.017.
10. Cerruto M. A., Vedovi E., Mantovani W., D'Elia C., Artibani W. Effects of ankle position on pelvic floor muscle electromyographic activity in female stress urinary incontinence: preliminary results from a pilot study. Archivio Italiano di Urologia e Andrologia. 2012;84(4):184–188.
11. Halski T., Słupska L., Dymarek R., et al. Evaluation of bioelectrical activity of pelvic floor muscles and synergistic muscles depending on orientation of pelvis in menopausal women with symptoms of stress urinary incontinence: a preliminary observational study. BioMed Research International. 2014;2014:8. doi: 10.1155/2014/274938.274938
12. Devreese A., Staes F., Janssens L., Penninckx F., Vereecken R., de Weerdt W. Incontinent women have altered pelvic floor muscle contraction patterns. The Journal of Urology. 2007;178(2):558–562. doi: 10.1016/j.juro.2007.03.097.
13. Chmielewska D, Stania M, Sobota G, et al. Impact of Different Body Positions on Bioelectrical Activity of the Pelvic Floor Muscles in Nulliparous Continent Women. BioMed Research International. 2015;2015:905897. doi:10.1155/2015/905897.
14. Hebert JJ, Koppenhaver SL, Magel JS, Fritz JM. The relationship of transversus abdominis and lumbar multifidus activation and prognostic factors for clinical success with a stabilization exercise program: a cross-sectional study. Arch Phys Med Rehabil. 2010;91(1):78-85
15. Cholewicki J, Silfies SP, Shah RA, et al. Delayed trunk muscle reflex responses increase the risk of low back injuries. Spine (Phila Pa 1976). 2005;30:2614-2620
16. Holmich P, Larsen K, Krogsgaard K, Gluud C. Exercise program for prevention of groin pain in football players: a cluster-randomized trial. Scand J Med Sci Sports. 2010;20:814-821
17. Akuthota V, Nadler SF. Core strengthening. Arch Phys Med Rehabil. 2004;85(3)(suppl 1):S86-S92
18. Ingraham, Paul. The Respiration Connection: How breathing might be a root cause of a variety of common upper body pain problems and injuries. PainScience.com. updated September 13, 2016 (published 2005).
19. Travell J, Simons D, Simons L. Myofascial Pain and Dysfunction: The Trigger Point Manual. 2nd ed. Lippincott, Williams & Wilkins; 1999. p314.
20. Magee DJ. Orthopedic physical assessment. WB Saunders Company; 1997. pp219-221.
21. Padula CA, Yeaw E. Inspiratory muscle training: integrative review. Research & Theory For Nursing Practice. 2006 Winter;20(4):291–304.
22. Kolar P, Neuwirth J, Sanda J, Suchanek V, Svata Z, Volejnik J, Pivec M. Analysis of diaphragm movement during tidal breathing and its during activation while breath holding using MRI synchronized with Spirometry. Physiol Res 2009;58:383-92
23. Kolar P, Sulc J, Kyncl M, Sanda J, Neuwirth J, Bokarius AV, Kriz J, Kobesova A. J Applied Physiol Aug 2010

To Tuck the Pelvis or Extend the Spine - That is the Question

To Tuck the Pelvis or Extend the Spine - That is the Question

Whether you are sitting in a chair all day long, lifting weights or pregnant, the position of your spine matters. In fact, in all three instances we want the same thing - a neutral spine. To tuck the pelvis or extend the spine - that is the question, but really, the answer is neither...we want a happy medium of both and here is why:

What is a neutral spine?

A neutral spine is when the position of the diaphragm is aligned with the pelvic floor. The spine is not flexed, extended, tilted or twisted.

Benefits of a neutral spine

The following is a list explaining why a neutral spine is beneficial:

• Maintains good posture
• Prevents or decreases muscular imbalances and strain on joints ⁽³⁾
• Supports and protects the spine
• Improved lung capacity
• Increased strength and mobility ⁽⁴⁾
• Maintains integrity of stabilizing complex (diaphragm, abdominal muscles, pelvic floor)
  • Antagonistic trunk flexor‐extensor muscle coactivation was present around the neutral spine posture in healthy individuals. ⁽¹⁾
• Decreases risk of pregnancy-related pain, including sciatica and low back pain ⁽³⁾
• Distributes load evenly through discs ⁽³⁾
• Relieves pelvic floor dysfunction including urinary incontinence ⁽³⁾

The Mechanics of Tucking the Pelvis vs. Lumbar Extension

Tilting the pelvis too far forward or tucking it too far backward can exaggerate or minimize the natural curve of the spine and cause pain, discomfort, or instability through the following mechanics:

Tucking:

Pelvic tucking is called a posterior pelvic tilt and is created when the pelvis rotates backwards (posteriorly). When this happens the coccyx (aka tailbone) moves down and forward. At the same time the pubic symphysis which is in the front of the pelvis moves forward and up towards the navel. By tucking, the lumbar spine actually moves into flexion and can pull the ribs down in a shearing motion that puts the abdominals almost into a crunch position by shortening the musculature. This movement also shortens the hamstrings while lengthening the quadriceps and back musculature. One reason people will tuck the spine is to activate the glutes, but this movement actually causes chronic tightening of the gluteal muscles and external hip rotators but this movement can pull the femur head back and externally rotate it causing widening of the pelvic floor and weakening the pelvic floor muscles.

Lumbar Flexion:

Lumbar flexion creates an anterior pelvic tilt and is created when the pelvis rotates forward (anteriorly). When this happens, the lumbar spine (low back) goes into hyper lordosis and the hamstrings and abdominals are lengthened while the quadriceps and back musculature are shortened causing the psoas and spinal erectors to be hyperactive. This position can also elevate the ribs and create a concentric abdominal wall while creating an oblique position of the diaphragm and pelvic floor, causing pelvic floor instability and an inability to optimally use the diaphragm.

How do I get to neutral?

Here are a few tips to help you achieve a neutral spine:

• Toes/feet are pointed straight ahead or at a slightly outward direction (11 o’clock & 1 o’clock position) and feet are hip-width apart
  • You should feel equal pressure on the three points of your foot (see diagram) creating a tripod
• Stacking is the key to stability: your head should be above your shoulders, your shoulders should be above your pelvis, your pelvis should be above your knees and your knees should be above your feet
• Make sure your diaphragm and pelvic floor are on top of each other
  • Avoid “rib flare” by gently lowering your ribs down until the lower ribs move into the abdominal skin and musculature
  • Don’t tilt the pelvis forwards or backwards: the pelvis should be neutral and not tilted forward or tucked. To do this, think of a cup, you don’t want the pelvis tilted forward or backwards causing water to drip out of the cup
• Make sure your chin isn’t jutted out and your head is squarely on your shoulders
  • To do this you tuck the chin straight back while also elongating the neck
  • Sure, you may feel like you have a double chin but we almost all do and that’s ok because it helps maintain that neutral, stacked spine

What does a neutral spine look like?

A neutral spine/ pelvis is when the ASIS (aka the hip bones) is in line with the pubic crest and the lumbar spine is balanced atop the sacrum, the rib cage will be lifted and supported by both the abdominal and back musculature and the pelvic floor and the diaphragm should be stacked upon one another.

To Tuck or Extend: Is it black-and-white?

Nope. First off, not everyone is created equal so there will naturally be some variance in what is best for each person. Constantly arching the spine is not healthy just as constantly tucking the spine is not healthy. The key is to systematically move the spine through its full range of motion with load. Therefore, we need to focus on a neutral spine for both weight-bearing and non-weight-bearing movements to help build strength and create a strong stabilizing system.

Resources:

1. Cholewicki J, Panjabi MM, Khachatryan A. Stabilizing function of trunk flexor-extensor muscles around a neutral spine posture. Spine. 1997;22(19):2207–2212.
2. Wallden, Matt. The neutral spine principle. Journal of Bodywork and Movement Therapies, Volume 13 , Issue 4 , 350 - 361
3. Panjabi, Manohar. (1993). The Stabilizing System of the Spine. Part II. Neutral Zone and Instability Hypothesis. Journal of spinal disorders. 5. 390-6; discussion 397. 10.1097/00002517-199212000-00002.
4. Jagarinec, Tomi. (2017). Core Training in Football: Improve Your Players’ Posture and Unlock Their Play Potential.
5. Bendix, T & Biering-Sørensen, F. (1983). Posture of the trunk when sitting on forward inclined seals. Scandinavian journal of rehabilitation medicine. 15. 197-203.
6. Richardson, C, Jull, G, Hodges, P, Hides, J. Therapeutic exercises for spinal segmental stabilization in low back pain. Churchill Livingstone, Toronto; 1999.
7. Elia, DS, Bohannon, RW, Cameron, D, Albro, RC. Dynamic pelvic stabilization during hip flexion: a comparative study. J Orthop Sports Phys Ther. 1996;24:30–36.
8. Robinson, R. The new back school prescription: stabilization training part 1. Occup Med. 1992;7:17–31.
9. Dumas, GA, Reid, JG, Wolfe, LA, Griffin, MP, McGrath, MJ. Exercise posture and back pain during pregnancy: part 1. Exercise and posture. Clin Biomech. 1995;10:98–103.