3.4 Mecánica muscular

Músculos de la porción posterior del tronco
Capa superficial Trapecio, dorsal ancho, romboides, elevador de la escápula, serrato anterior
Capa intermedia
Serrato posterosuperior
Serrato posteroinferior
Capa profunda
Grupo erector de la columna
1.Espinoso
2. Longuisimo
3. Iliocostal
1.Espinoso de la cabeza, del cuello, torácico
2.Longísimo de la cabeza del cuello, torácico
3.Iliocostal cervical, toracico, lumbar
Grupo trasversoespinoso
1.Semiespinosos
2.Multifidos
3.Rotadores
1.Semiespinoso torácico, del cuello y de la cabeza
2.Multífidos
3.Retadores cortos y largos
Grupo de músculos sementales
cortos
1. Interespinosos
2. Intertrasversos
Músculos de la porción anterolateral del tronco
Recto del abdomen
Oblicuo externo del abdomen
Oblicuo interno del abdomen
Transverso del abdomen
Músculos adicionales
Psoas iliaco
Cuadrado lumbar

Bergmark (1989)
Sistema de estabilización local (SEL) Sistema de estabilización global (SEG)
Discurren de un segmento a otro de la columna
Músculos largos que saltean sus inserciones varios
segmentos vertebrales
Transverso
Multifidos
Rotadores
diafragma
suelo Pélvico
Recto abdominal
oblicuo externo
erectores espinales
Cuadrado lumbar, oblicuo interno y psoas

CARACTERISTICAS MUSCULARES (Mark D.Faries Et al 2007)
LOCAL GLOBAL
MUSCULATURA PROFUNDA
NATURALEZA FIBRAS LENTAS
ACTIVOS EN ACTIVIDADES
DURADERAS
SELECTIVAMENTE DEBILITADOS
ACTIVADOS A BAJOS NIVELES DE
INTENSIDAD (30-40% DE LA MAXIMA
CONTRACCIÓN VOLUNTARIA)
MUSCULATURA SUPERFICIAL
NATURALEZA FIBRAS RAPIDAS
ACTIVOS EN ACTIVIDADES
POTENTES
RECLUTAMIENTO FACILITADO
ACTIVADOS A ALTOS NIVELES DE
INTENSIDAD (POR ENCIMA DEL 40%
DE LA MAXIMA CONTRACCION
VOLUNTARIA)

Grupo erector de la columna
1.Espinoso
2. Longuisimo
3. Iliocostal
1.Espinoso de la cabeza, del cuello, torácico
2.Longísimo de la cabeza del cuello, torácico
3.Iliocostal cervical, toracico, lumbar
75% fibra
s lentas

ESPINOSOS O ESPINALES
(espinoso torácico, espinoso del cuello, espinoso
de la cabeza)
Origen:
Apófisis espinosas
Inserción:
Apófisis espinosas
Función:
Eje A-P: Inclinación lateral (poca mecánica)
Eje S-I: Rotación (poca mecánica)
Eje L-M: Extensión (buena mecánica)

LONGISSIMUS (dorsal largo)
(1. dorsal 2. cuello 3. cabeza)
Origen:
1. Apófisis espinosas vertebras lumbares y sacras
2. Apófisis transversas vertebras dorsales
3. Apófisis transversas vertebras cervicales
Inserción:
1. Costillas 9-12
2. Costillas 1-9
3. Apófisis mastoides del temporal
Función:
Eje A-P: Inclinación lateral (buena mecánica)
Eje S-I: Rotación (poca mecanica)
Eje L-M: Extensión (buena mecánica, plano
predominante)

ILIOCOSTAL(1.fibras lumbares, 2.
fibras torácicas, 3. fibras cervicales)
Origen:
1. Cresta iliaca y fascia toracolumbar
2. Costillas 7-12
3. Apófisis transversas cervicales
Inserción:
1. Costillas 6-12
2. Costillas 1-6
Función:
Eje A-P: Inclinación lateral (buena
mecánica, plano predominante)
Eje S-I: Poca rotación
Eje L-M: Extensión (buena mecánica,)
1
2
3

ILIOCOSTAL(1.fibras lumbares, 2.
fibras torácicas, 3. fibras cervicales)
Origen:
1. Cresta iliaca y fascia toracolumbar
2. Costillas 7-12
Inserción:
1. Costillas 6-12
2. Costillas 1-6
Función:
mecánica, plano predominante)
Eje S-I: Poca rotación
Eje L-M: Extensión (buena mecánica,)
1
2
3
(www.researchreviewservice.com)
The efficiency of correctiveexerciseinterventionson thoracic hyper-kyphosisangle
Journal of Back & Musculoskeletal Rehabilitation 2014; 27: 7-16
Seidi F, Rajabi R, Ebrahimi I, et al.
Reviewed by Dr. CearaHigginsDC (Research Review Service)
ABSTRACT
Background And Objective: Correctiveexerciseinterventionsareoften utilized tomanagesubjectswith
thoracichyper-kyphosis, yet thequalityof evidencethat supportstheir efficiencyislacking. In thisstudy, the
efficacyof local and comprehensivecorrectiveexerciseprograms(LCEPand CCEP) on kyphosisanglewas
evaluated.
Material And Method: A prospective, randomised controlled design wasused in thepresent study. Sixty
patientswith postural hyper-kyphosisdeformity( 42°) entered thestudyfor 12 weeks. Subjectswere⩾
randomlyassigned toaLCEP(n=20), CCEP(n=20), or Control groups(n=20). Pre- and post-participation
levelsof kyphosisangleweremeasured byflexicurveruler.
Results: Both theLCEPand CCEPgroupsdemonstrated statisticallysignificant reductionsin thoracic
kyphosisanglecompared tothecontrol group(p=0.001). Furthermore, based on Cohen'sd-value, the
efficiencyof CCEPwaslarger than LCEP.
Conclusions: Consideringtheextremelylargeeffect sizeof theCCEP, werecommend that thisprogram be
used in thecorrection of postural hyper-kyphosisdeformityin future.
right tragus, acromion processof thescapula, and thespinousprocessof C7 weremarked with
removable, red adhesivedotsand theparticipant wasplaced 9 inchesout from awall which wasset up
with awall mounted grid. A tripod-mounted digital camerawasplaced 104 inchesfrom thewall and
adjusted to placethetripod level with theparticipant’sright shoulder. Theparticipant wasinstructed to
bend forward threetimesand then raisehandsoverhead threetimesbeforeassumingacomfortable,
erect posturewith their weight distributed evenly between their feet and their eyesfixed on theopposite
wall. Threephotoswerethen taken within 5 seconds. AdobeAutoCAD 2010 wasused to measurethe
anglebetween alineconnecting thetragusand C7 and avertical linethrough C7 (forward head angle)
and theanglebetween alineconnectingC7 and theacromion and thesamevertical line(forward
shoulder angle). Theaveragefrom thethreephotoswasrecorded asforward head and forward shoulder
anglesfor each participant.
Exercise Interventions:
Both theLCEPand CCEPgroupsweregiven exercisesto perform threetimesper week for 12 weeks
under thedirect supervision of theexaminers.
Local CorrectiveExerciseProgram(LCEP):
TheLCEPgroup received exercisesbased on Kendall’stheory that had been included repeatedly in
previousstudies. They aimed to stretch thepectoral musclesand strengthen thethoracic extensor
musclesthrough theuseof stretching, self-mobilization, and strengthening, with an emphasison
endurance. In each session theparticipantswarmed up with light aerobic activity for 5 minutes, then
performed two stretching(exercises1 and 2), oneself-mobilization (exercise3), and two strengthening
exercises(exercises4 and 5) sequentially, then cooled down with general stretchingexercisesand slow
walkingfor 5 minutes. Thefoam rollersused in stretching exercise2 weregradually increased in
diameter from 15 cm to 20 cm and then to 25 cm to increasethestretch.
5
oracicKyphosisMeasurement
exicurveruler, 50cm in length and 2cm wide, wasused to measurethoracic kyphosisangle.
movable, red adhesivedotswereused to mark thespinousprocessesof T2 and T12. Participantswere
n asked to stand barefoot on thebaseof aplatform in acomfortable, erect posturewith their body
ght evenly distributed between their feet and their eyesfixed on theoppositewall. Theexaminer
n waited 1-minuteuntil theparticipant returned to their normal posturebeforepositioning two
wels, which werehorizontally mounted on thespinestabilizer instrument (SSI) on an adjustable
nd, to lightly touch thexyphoid processof theparticipant’ssternum and their pubic symphysisin
er to control postural sway. Theexaminer then molded theflexicurveruler to theparticipant’s
racic spineand marked theintersection with thered adhesivedotsat T2 and T12 on theruler with a
ker. Theflexicurveruler wasthen carefully lifted from theparticipant’sspinewithout altering the
figuration of thecurveand placed on apieceof whiteposter board whereit washeld whilean
stant traced theoutlineof thecurveand marked thepointscorresponding toT2 and T12. The
icipant stepped off theplatform for 1-minuteof rest. Theparticipant then stepped back onto the
form into previously traced outlinesof their feet, thespinousprocessesof T2 and T12 wereagain
ked and themeasurement procedurewasrepeated. Thethoracic curvewastraced onto theopposite
eof thewhiteposter board to prevent theinitial contour from influencingtheexaminer. TheT2 and
2 pointson each curvewereconnected usingastraight line(L line) and then thislinewasbisected at
deepest point of thecurve(H line).
esemeasurementswerethen inserted into an equation to calculatethethoracic kyphosisangle. The
rageof thetwo angleswasrecorded asthethoracic kyphosisangleof each participant.
eral photographic techniquewasused to measureforward head and forward shoulder angles. The
4
At theend of week 12 theinitial measurementswererepeated. A repeated measuresANOVA, paire
N=60
18-25 años
Hipercifosis ≥ 42°
Cabeza adelantada ≥ 44°
Hombros adelantados ≥ 49°
Contracción dinamica 5.04°
Contracción estatica 12.25°
Grupo control 0.64°
1 serie/3 veces por semana/12 semanas

in-home based therapeutic exercise program on thoracic kyphosis angles 163
, H.K.
ortality
220.
coliosis
e of the
tecting
222.
trarater
opausal
1985.
Spinal
ne dys-
ndrome
09.
d M.H.
s, Phys
onship
ol Ther
d static
J Hand
ment of
phome-
al con-
female
Adher-
recon-
Rehabil
nvasive
t spine,
ects of
me exer-
herapy
m of the
houlder
), 257–
rement
Appendix 1.
Fig. 4. Four-step prone back extension. Start: arms raised from the
floor, thorax raised from the floor, thorax lowered to floor, and arms
lowered to the floor. This exercise was progressed to elbows fully
extended and arms abducted approximately 125° in the frontal plane.
D.W. Vaughn and E.W. Brown / The influence of an in-home based therapeutic exercise program on thoracic kyphosis angles 163
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Genant and S.R. Cummings, Vertebral fractures and mortality
in older women, Arch Intern Med 159 (1999), 1215–1220.
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and kyphosis, Clinical Symposia 41(4) (1989), 1–32.
[14] D.J. Kolessar, G.T. Stollsteimer and R.R. Betz, The value of the
measurement from T5 to T12 as a screening tool in detecting
abnormal kyphosis, J Spinal Disord 9(3) (1996), 220–222.
[15] K. Lundon, A. Li and S. Bibershtein, Interrater and intrarater
reliability in the measurement of kyphosis in postmenopausal
women with osteoporosis, Spine 23(18) (1998), 1978–1985.
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type I, J Orthop Sports Phys Ther 30(7) (2000), 401–409.
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Pope, Endurance training of the trunk extensor muscles, Phys
Ther 73(1) (1993), 3–10.
[19] M.K. Moore, Upper crossed syndrome and its relationship
to cervicogenic headache, J Manipulative and Physiol Ther
27(6) (2004), 414–420.
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postures: a source of nerve compression and pain, J Hand
Ther 10 (1997), 151–159.
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ter, Spine 14(6) (1989), 580–583.
[22] G. Ohlen, T. Wredmark and E. Spangfort, Spinal sagittal con-
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gymnast, Spine 14(8) (1989), 847–850.
[23] T. Pizzari, N.F. Taylor, H. McBurney and J.A. Feller, Adher-
ence to rehabilitation after anterior cruciate ligament recon-
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14(3) (2005), 201–214.
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J Manual and Manipulative Ther 2(1) (1994), 11–21.
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cise program in older adults with osteoarthritis, Physiotherapy
91(2) (2005), 79–86.
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cervical spine and shoulder girdle in patients with shoulder
complaints, J Manipulative Physiol Ther 20(4) (1997), 257–
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923–929.
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cence, Spine 3(4) (1978), 285–308.
Appendix 1.
Fig. 4. Four-step prone back extension. Start: arms raised from the
floor, thorax raised from the floor, thorax lowered to floor, and arms
lowered to the floor. This exercise was progressed to elbows fully
extended and arms abducted approximately 125° in the frontal plane.
Fig. 5. Shoulder horizontal abduction/scapular adduction 4-step ex-
ercise. Start: arms elevated at 90° in front of the body (as shown).
Then, shoulders horizontally abducted to frontal plane, scapulae ad-
ducted, scapulae return to initial position, and arms reach forward
again. Exercise progressed to one higher level of band resistance.
164 D.W. Vaughn and E.W. Brown / The influence of an in-home based therapeutic exercise program on thoracic kyphosis angles
Fig. 6. Cervical retraction exercise. Patient repeatedly emphasizes
upper cervical flexion with lower cervical/upper thoracic extension;
(A)
(B)
alternating position with the opposite (resting) cervical posture.
Fig. 7. Self-mobilization of the thoracic spine into extension with a
Styrofoam roll.
(A)
(B)
Fig. 8. Thoracic extension exercise. (A) Patient begins in cervical,
lumbar and thoracic flexion. She then is instructed to extend neck
and thoracic spines on a segment-by-segment basis. She adducts
scapulae at end of exercise. Pillow placed to encourage maintenance
of relative lumbar flexion.
Styrofoam roll.
(A)
(B)
Styrofoam roll.
(A)
(B)
Fig. 9. Yoga exercise to strengthen back extensors. Patient starts
from flexed thoracic spine and arms internally rotated. Progresses to
arms outwardly rotated and thorax extended (as shown). Leg position
Fig. 10. Latissimus Dorsi and Pectoralis Major stretch exercise. Pa-
tient starts in “90-90” position of shoulders/elbows with arms relaxed
on floor as shown. Patient takes arms overhead as far as possible.
Goal is full elevation of arms overhead without losing floor contact.
Leg position restricts compensatory lumbar extension.
Appendix 2.
(A)
(B)
Fig. 11. Alternative exercise for patients unable to do exercise shown
in Fig. 8. Patient alternately flexes (A) and extends (B) thoracic
spine from all-4’s position; emphasis on extension of thorax. Arms
remain locked at elbows.
Journal of Back and Musculoskeletal Rehabilitation 20 (2007) 155–165 155
IOS Press
The influence of an in-home based therapeutic
exercise program on thoracic kyphosis angles
Daniel W. Vaughna,∗ and Eugene W. Brownb
a
Physical Therapy Program, Grand Valley State University, Grand Rapids, MI, USA
b
Department of Kinesiology, Michigan State University, 204 Intramural Sports Circle, East Lansing, MI, USA
Abstract. Objective: Altered postural presentations have been associated with a variety of musculoskeletal disorders. Therapeutic
exercise interventions are often utilized to manage patients with increased thoracic kyphosis or “round shoulders,” yet few
controlled studies have evaluated their efficacy.
Design: A prospective, randomized, controlled design was used to evaluate the influence of a home-based exercise regimen
on these postural variances. Seventy-one patients with real or perceived concerns about their thoracic posture completed the
13-week study. Patients with 23–80◦
of thoracic kyphosis entered the study. Pre- and post-intervention flexicurve measurements
of thoracic kyphosis were made. Patients were randomly assigned to an exercise (n = 32) or control group (n = 39). A mixed
design ANOVA tested main effects and interactions.
Results: A statistically significant (p < 0.05) interaction was found between group assignment and delta kyphosis values. Post-
hoc analysis of the multiple comparisons produced a marginal p-value (p = 0.0557). Mean delta kyphosis values were (+ ) 0.5◦
(± 7.0◦
) for the control group and (− ) 3.0◦
(± 6.1◦
) for the experimental group.
Conclusions: This 13-week home exercise program targeting modification of thoracic kyphosis angles had a statistically significant
impact. However, post-hoc statistical analyses and clinical implications are marginal.
Keywords: Evidence-based practice, outcome measures, postural relationships
1. Introduction
1.1. Influence of exercise on posture
The normal range of thoracic kyphosis is 20–45 ◦
[6,
13–15,20–22]. Excessive kyphosis (> 45◦
) is an eti-
ological factor of, or significant impairment in, up-
per quarter pathologies ranging from shoulder pain to
spinal compression fractures [3,9,12,17,20,26]. Phys-
ical therapists routinely use therapeutic exercises to
manage patients with hyper-kyphosis. However, the
quality of evidence that supports effective therapeutic
exercise interventions for this postural abnormality is
lacking. In 2001, Hrysomallis and Goodman [10] pub-
∗ Address for correspondence: D.W. Vaughn, Physical Therapy
Program, Grand Valley State University, 260 CHS, 301 Michigan
Street, NE, Grand Rapids, MI 49503, USA. Tel.: +1 616 331 2678;
Fax: +1 616 331 5999; E-mail: vaughnd@gvsu.edu.
lished a literature review which evaluated the effect of
exercise for the correction of postural abnormalities.
The authors concluded that, “Based on the existing lit-
erature, it is inadvisable to strongly promote strength-
ening exercises to correct postural malalignments, such
as abducted scapulae, excessive lumbar lordosis, scol-
iosis, or kyphosis.” (p. 389). Poor methodology and/or
the absence of a control group confounded the results
of many of the studies they reviewed [10].
Itoi and Sinaki [11] evaluated the effect of a prone-
lying spinal extension exercise on kyphosis angles and
thoracic spinal extensor strength. The study was con-
ducted over a two-year period of time on 60 patients
with estrogen deficiency. The patients were 49–65
years old (mean = 59). Their range of kyphosis an-
gles was 9.5–69.5◦
(mean = 34.1◦
). The experimen-
tal group (n = 32) showed no statistically significant
improvement in the kyphosis angle, as compared to the
control group (n = 28). This was in spite of the fact
ISSN 1053-8127/07/$17.00 Ó 2007 – IOS Press and the authors. All rights reserved
N=71
21 a 63 años
13 semanas
4 sesiones/semana
Appendix 2.
(A)
(B)
in Fig. 7. Patient performs self mobilization of thoracic spine into
extension by sliding roller up and down thoracic region through knee
bending and straightening while holding self as erect as possible
against the Styrofoam roll.
Appendix 2.
(A)
(B)
-3.0
Home exercise
3. had a ScoliometerT M
reading of greater than five
degrees at the point of peak axial rotation on the
forward bending test.
4. had a structural kyphosis, confirmed by radio-
graphs.
2.4. Screening of participants
Following random assignment, patients were further
screened by the lead investigator forlimitations in range
of motion that would interfere with their ability to per-
form the exercises. Patients were also screened for ex-
cessive axial trunk rotation, using the ScoliometerT M
.
Amendt et al. [1] established the utility of this instru-
ment for scoliosis screening. Since the exercises uti-
lized in the present study were not designed to influence
tri-planar thoracic curvatures, patients with potentially
significant scoliosis were excluded from the study.
2.5. Kyphosis measurements
The flexicurve is a malleable, metal ruler covered
with plastic that can be bent only in a single plane.
Once bent, it retains its shape to conformto the patient’s
spine. Three consecutive thoracic kyphosis angle mea-
sures were made. The mean of these measurements
served as the pre-participation kyphosis angle. Every
kyphosis angle measurement followed the same proto-
col. The lead author first identified, through palpation,
the spinous processes of T1 and T12 and marked them
with a skin marker. The patient was asked to inhale
and exhale without forcing out the breath. The flex-
icurve was carefully conformed to the thoracic spine
(Fig. 1). The researcher noted the span of the curve
using the flexicurve’s ruler. This process was repeated
three times. The lead author calculated the kyphosis
angle from the three tracings. Figures 2 and 3 illustrate
the method described by Hart and Rose [8], as well
as the trigonometric calculation, used to determine the
kyphosis angle in the current study.
2.6. Exercise protocol and instruction
A literature review produced few articles where exer-
cises were prescribed specifically to influence postural
changes in the adult thoracic spine. The seven exercis-
es prescribed in the current study were a combination
of strengthening, stretching, and self-mobilization ac-
tivities (Appendix 1). The exercises targeting Erector
Spinae strength were selected on the basis of evidence
provided by Moffroid et al. [18]. The cervical retrac-
Fig. 1. Application of the flexicurve to the patient’s back for kyphosis
measurement.
tion exercise was recommended by McKenzie [16] and
Moore [19] for its postural realignment value. The in-
terscapular muscle strengthening and pectoral stretch-
ing exercises were validated by Wang et al. [28] as a
way to improveupper trunk posture and scapular stabil-
ity. These authors reported a reduction of thoracic “an-
terior inclination” as a result of their six-week exercise
program.
The exercises in this study were carefully dosed by
a research assistant. This licensed physical therapist
has more than 20 years of clinical practice in primarily
outpatient orthopedic settings. Her primary intent in
teaching the exercises was accurate performance with-
out discomfort.
The research assistant contacted the patients within
24 hours of his/her initial data collection session. The
assistant determined the patient’s group assignment by
inquiring as to the number the patient rolled on the die.
Patients assigned to the control group were told that
they would be contacted in three months for a follow-
up data collection session. No further contact with
this group occurred until the follow-up appointment
was established. Patients assigned to the experimental
group were given an appointment with the research
assistant in order to learn the exercises.
All seven exercises were prescribed with appropri-
ate progressions defined for repetitions, resistance (in
the case of the TherabandT M
(Hygenic Corporation,
Akron OH) exercises), and hold times over the course
of the 13-week training program. Two levels of band
resistance were given to the patient at the training ses-
sion; one appropriate to the patient’s abilities at the
initial session and a second band one resistance grade
higher. Detailed written and pictorial descriptions (Ap-

15,3% en niños de 11 años (Hazebroek-
Kampschreur A.A et al. 1992)
38% en adultos de 20 a 50 años (Morris GP. et al
1992)
35% en adultos de 20 a 65% (Cutler WB et al 1993)
INCIDENCIA HIPERCIFOSIS
Relación con…..
*Mayor indice de caídas
*Patologias respiratorias
*Dolor cervial
*Reducción espacio subacromial
*Impingement sulbcromial
*Aumento de la mortalidad

SEMIESPINALES
(cruzan 6 a 8 vertebras)
1.De la cabeza
2.Del cuello
3. Torácico
Origen:
apófisis transversas a espinosas
Inserción:
Apófisis espinosas
Función:
Eje A-P: Inclinación lateral poca mecanica
Eje S-I: Rotación contralateral (buena
mecánica)
Eje L-M: Extensión (buena mecanica

MULTIFIDOS
(cruzan de 2 a 4 vertebras)
Origen:
Sacro, espina iliaca y apófisis
transversas
Inserción:
Apófisis espinosas
Función:
Eje A-P: Inclinación lateral poca
mecanica
Eje S-I: Rotación (buena mecánica)
Eje L-M: Extensión (buena mecanica)

ROTADORES
(cruzan 1-2 vertebras)
(rotadores cortos y largos)
Origen:
Sacro, espina iliaca y apófisis
transversas
Inserción:
Apófisis espinosas
Función:
Eje A-P: Inclinación lateral poca
mecanica
Eje S-I: Rotación (buena
mecánica)
Eje L-M: Extensión (buena
mecanica)

INTERTRANSVERSOS
Origen:
Apófisis transversas
Inserción:
Apófisis transversas
INTERESPINOSOS
Origen:
Apófisis espinosas
Inserción:
Apófisis espinosas
Función:
Eje A-P: Inclinación lateral
Eje S-I: Rotación (poca mecánica)
Eje L-M: Extensión
Grupo de músculos segmentales cortos
1. Interespinosos
2. Intertrasversos

Recto abdominal
Superiores: (costilla 5,6 y 7 - cresta y sinfisis pubica)
Plano predominante flexión
Ligera flexión ipsilateral
Ligera flexión contralateral
Torax sobre pelvis fijo
Inferiores: (costilla 5,6 y 7- cresta y sinfisis pubica)
Plano predominante flexión
Ligera flexión ipsilateral
Ligera flexión contralateral
Pelvis sobre tórax fijo

Inferiores
(linea alba hasta sínfisis púbica
ligamento inguinal, cresta ilíaca, fascia toracolumbar)
Flexión poca mecánica
Flexión ipsilateral ligera mecánica
Rot. ipsilateral Pelvis
Pelvis sobre tórax fijo (Rotación)
2
1
Superiores
(linea alba desde ombligo hasta apófisis xifoides
cartílagos costales, costilla 10)
Flexión muy poca mecánica
Flexión ipsilateral ligera mecánica
Rot. Contralateral Tronco
Torax sobre pelvis fijo (Rotación)
Transverso

Estabilización local mejora
dolor lumbar
O’sullivan et al.Spine. 1999
Mejor 4 apoyosactivación
Beith, R Man Ther 2001
Entrenar aislado
Hodges, P. Man Ther 2001
Mejora extensión cadera
Madokoro,S. et al JPST 2014
Masestable que brace
Richardson, M et al, Spine. 2002
Respuesta anticipadora
Hodges, P.Arch Phys Med Rehabil 1999

Oblicuo externo
Anteriores superiores (1)
(costilla laterales 10-12 - labio externa cresta iliaca)
Rotación contralateral
Flexión lateral poca mecánica
Torax sobre pelvis fijo (Flex 20º+ Rot contral)
1
2
3

Oblicuo externo
Laterales (3)
(costilla laterales 10-12 - labio externa cresta iliaca)
Flexión lateral
Rot. contralateral poca mecánica
Pelvis sobre tórax fijo (Flex + flexión lat)
1
2
3
Anteriores inferiores (2)
(costilla 7-9 - lig inguinal y zona inferior linea alba)
Rotación contralateral
Flexión
Flexión ipsilateral
Torax sobre pelvis fijo (Flex + Rot contra)

Anteriores superiores (2)
(lateral ligamento inguinal y mitad anterior cresta iliaca
capas anteriores de la linea alba y vaina abdominal
Flexión tronco
Flexión ipsilateral poca mecánica
Rot. ipsilateral pelvis
Pelvis sobre tórax fijo (Flex + Rot ipsi)
2
3
4
1
Anteriores inferiores (1)
(Al igual que transverso fibras inferiores)
Oblicuo interno

Oblicuo interno
Laterales anteriores(3)
(zona lateral cresta iliaca
capas superiores de la linea alba y costillas 9-10
Flexión tronco (mecánica tronco sobre pelvis)
Flexión ipsilateral buena mecanica
Rot. ipsilateral torax debil
Torax sobre pelvis fijo (Flex ipsi)
2
3
4
1
Laterales posteriores(4)
(zona latero-posterior cresta iliaca - fascia toracolumbar
costillas 10-11-12
Flexión tronco poca mecánica
Flexión ipsilateral buena mecánica
Rot. ipsilateral torax poca mecánica
Torax sobre pelvis fijo (Flex ipsi)

CUADRADO LUMBAR
Origen: ¼ posterior de la cresta ilia
ca
Inserción: costilla 12 y apófisis tran
sversas L1-L4
mecánica, pelvis sobre torax fijo)
Eje S-I: Ligera rotación
Eje L-M: Extensón

3.4 Mecánica muscular

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3.4 Mecánica muscular