Does hip joint positioning affect maximal voluntary contraction in the gluteus maximus, gluteus medius, tensor fasciae latae and sartorius muscles?

BACKGROUND: The effectiveness of side-sling plank (SSP) exercises on trunk and hip muscle activation in subjects with gluteus medius (Gmed) weakness is unclear. OBJECTIVE: To quantify muscle activation of the rectus abdominis (RA), external oblique (EO), erector spinae (ES), lumbar multifidus (LM), Gmed, gluteus maximus (Gmax), and tensor fasciae latae (TFL) during SSP with three different hip rotations compared to side-lying hip abduction (SHA) exercise in subjects with Gmed weakness. METHODS: Twenty-two subjects with Gmed weakness were recruited. SHA and three types of SSP exercises were performed: SSP with neutral hip (SSP-N), hip lateral rotation (SSP-L), and hip medial rotation (SSP-M). Surface electromyography was used to measure the activation of the trunk and hip muscles. RESULTS: The trunk and hip muscles activations were generally significantly higher level during three SSP than SHA. SSP-M showed significantly lower EO activation while significantly higher ES and LM activation than SSP-L. Gmed activation was significantly higher during SSP-M than during SSP-L. TFL activation was significantly lower during SSP-M than during SSP-N and SSP-L. CONCLUSIONS: SSP could be prescribed for patients who have reduced Gmed strength after injuries. Especially, SSP-M could be applied for patients who have Gmed weakness with dominant TFL.

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Relationship between muscular and bony anatomy in native hips: a theoretical background for approach-specific implant positioning

Hip International ◽

10.1177/1120700018759301 ◽

2018 ◽

Vol 29 (2) ◽

pp. 147-152 ◽

Cited By ~ 1

Author(s):

Doruk Akgün ◽

Philipp von Roth ◽

Tobias Winkler ◽

Carsten Perka ◽

Adam Trepczynski ◽

...

Keyword(s):

Gluteus Maximus ◽

Gluteus Medius ◽

Theoretical Background ◽

Surgical Approaches ◽

Acetabular Anteversion ◽

Joint Orientation ◽

Combined Anteversion ◽

Bony Anatomy ◽

The Mean ◽

Tensor Fasciae Latae

Introduction: The aim of this study was to analyse the relationship between bony joint orientation and the distribution of hip musculature. Methods: The bone anatomy of the hip (femoral antetorsion (AT), acetabular anteversion (AV), and combined anteversion (AV/AT)) and the muscle volume of the gluteal muscles and the tensor fasciae latae were analysed bilaterally using computed tomography data of 49 patients. Muscle force direction (MFD) was determined for each muscle. The total MFD of the hip musculature was calculated and then correlated with the bony anatomy. Results: The mean AV, AT, and AV/AT were 21.9° ± 5.9°, 7.22° ± 7.4°, and 29.2° ± 9°, respectively. We found the following mean muscle volumes: gluteus maximus: 780 ± 227 cm3, gluteus medius: 322 ± 82 cm3, gluteus minimus: 85 ± 20 cm3, and tensor fasciae latae: 68 ± 22 cm3. The mean MFD was 18.92° ± 1.29°. We found a uniform distribution of the musculature that was not correlated with the bone anatomy. Conclusion: This study highlights the variability in native acetabular and femoral anatomy and that bone hip anatomy does not correlate with the distribution of hip musculature. Although native acetabular anteversion matches the suggested targets for cup insertion, native combined anteversion is not related to current implant insertion targets. Understanding native muscular anatomy and the alterations that occur with different surgical approaches can serve as an explanatory model for THAs that has become unstable despite the components being implanted within the safe zone.

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Movements in Different Hip Joint Positions Affect Gluteus Maximus and Gluteus Medius Muscle Activities

Rigakuryoho Kagaku ◽

10.1589/rika.29.857 ◽

2014 ◽

Vol 29 (6) ◽

pp. 857-860

Author(s):

Toshiaki SEKO ◽

Tsuneo KUMAMOTO ◽

Yui TAKAHASHI ◽

Ryousuke KANEKO ◽

Masashi TANAKA ◽

...

Keyword(s):

Hip Joint ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Gluteus Medius Muscle

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Gluteal Muscle Atrophy and Increased Intramuscular Lipid Concentration Are Not Mitigated by Daily Artificial Gravity Following 60-Day Head-Down Tilt Bed Rest

Frontiers in Physiology ◽

10.3389/fphys.2021.745811 ◽

2021 ◽

Vol 12 ◽

Author(s):

Vienna Tran ◽

Enrico De Martino ◽

Julie Hides ◽

Gordon Cable ◽

James M. Elliott ◽

...

Keyword(s):

Hip Joint ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Bed Rest ◽

Artificial Gravity ◽

Control Group ◽

Joint Stability ◽

Lipid Concentration ◽

Gluteal Muscle ◽

Intramuscular Lipid

Exposure to spaceflight and head-down tilt (HDT) bed rest leads to decreases in the mass of the gluteal muscle. Preliminary results have suggested that interventions, such as artificial gravity (AG), can partially mitigate some of the physiological adaptations induced by HDT bed rest. However, its effect on the gluteal muscles is currently unknown. This study investigated the effects of daily AG on the gluteal muscles during 60-day HDT bed rest. Twenty-four healthy individuals participated in the study: eight received 30 min of continuous AG; eight received 6 × 5 min of AG, interspersed with rest periods; eight belonged to a control group. T1-weighted Dixon magnetic resonance imaging of the hip region was conducted at baseline and day 59 of HDT bed rest to establish changes in volumes and intramuscular lipid concentration (ILC). Results showed that, across groups, muscle volumes decreased by 9.2% for gluteus maximus (GMAX), 8.0% for gluteus medius (GMED), and 10.5% for gluteus minimus after 59-day HDT bed rest (all p < 0.005). The ILC increased by 1.3% for GMAX and 0.5% for GMED (both p < 0.05). Neither of the AG protocols mitigated deconditioning of the gluteal muscles. Whereas all gluteal muscles atrophied, the ratio of lipids to intramuscular water increased only in GMAX and GMED muscles. These changes could impair the function of the hip joint and increased the risk of falls. The deconditioning of the gluteal muscles in space may negatively impact the hip joint stability of astronauts when reexpose to terrestrial gravity.

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Hip Joint Contact Forces During Running with a Transtibial Amputation

Journal of Biomechanical Engineering ◽

10.1115/1.4049227 ◽

2020 ◽

Author(s):

Lauren Sepp ◽

Brian S Baum ◽

Erika Nelson-Wong ◽

Anne Silverman

Keyword(s):

Hip Joint ◽

Hip Osteoarthritis ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Contact Forces ◽

Musculoskeletal Models ◽

Joint Health ◽

Joint Contact ◽

Reaction Forces

Abstract People with unilateral transtibial amputations (TTA) have greater risks of bilateral hip osteoarthritis, related to asymmetric biomechanics compared to people without TTA. Running is beneficial for physical health and is gaining popularity. However, people with TTA may not have access to running-specific prostheses (RSPs), which are designed for running, and may instead run using their daily-use prosthesis (DUP). Differences in joint loading may result from prosthesis choice, thus it is important to characterize changes in peak and impulsive hip joint contact loading during running. Six people with and without TTA ran at 3.5 m/s while ground reaction forces, kinematics, and electromyography were collected. People with TTA ran using their own RSP and repeated the protocol using their own DUP. Musculoskeletal models incorporating prosthesis type of each individual were used to quantify individual muscle forces and hip joint contact forces during running. People using RSPs had smaller bilateral peak hip joint contact forces compared to when wearing DUPs during stance and swing, and a smaller impulse over the entire gait cycle. Greater amputated leg peak hip joint contact forces for people wearing DUPs compared to RSPs occurred with greater forces from the ipsilateral gluteus maximus during stance. People with TTA also had greater bilateral peak hip joint contact forces during swing compared to people without TTA, which occurred with greater peak gluteus medius forces. Running with more compliant RSPs may be beneficial for long-term joint health by reducing peak and impulsive hip loading compared to DUPs.

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Muscle Activation Levels of the Gluteus Maximus and Medius During Standing Hip-Joint-Strengthening Exercises Using Elastic-Tubing Resistance

Journal of Sport Rehabilitation ◽

10.1123/jsr.2012-0082 ◽

2014 ◽

Vol 23 (1) ◽

pp. 1-11 ◽

Cited By ~ 3

Author(s):

James W. Youdas ◽

Kady E. Adams ◽

John E. Bertucci ◽

Koel J. Brooks ◽

Meghan M. Nelson ◽

...

Keyword(s):

Lower Extremity ◽

Outcome Measures ◽

Hip Joint ◽

Repeated Measures ◽

Muscle Activation ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Muscle Recruitment ◽

Gluteus Medius Muscle ◽

The Cross

Context:No published studies have compared muscle activation levels simultaneously for the gluteus maximus and medius muscles of stance and moving limbs during standing hip-joint strengthening while using elastic-tubing resistance.Objective:To quantify activation levels bilaterally of the gluteus maximus and medius during resisted lower-extremity standing exercises using elastic tubing for the cross-over, reverse cross-over, front-pull, and back-pull exercise conditions.Design:Repeated measures.Setting:Laboratory.Participants:26 active and healthy people, 13 men (25 ± 3 y) and 13 women (24 ± 1 y).Intervention:Subjects completed 3 consecutive repetitions of lower-extremity exercises in random order.Main Outcome Measures:Surface electromyographic (EMG) signals were normalized to peak activity in the maximum voluntary isometric contraction (MVIC) trial and expressed as a percentage. Magnitudes of EMG recruitment were analyzed with a 2 × 4 repeated-measures ANOVA for each muscle (α = .05).Results:For the gluteus maximus an interaction between exercise and limb factor was significant (F3,75 = 21.5; P < .001). The moving-limb gluteus maximus was activated more than the stance limb's during the back-pull exercise (P < .001), and moving-limb gluteus maximus muscle recruitment was greater for the back-pull exercise than for the cross-over, reverse cross-over, and front-pull exercises (P < .001). For the gluteus medius an interaction between exercise and limb factor was significant (F3,75 = 3.7; P < .03). Gluteus medius muscle recruitment (% MVIC) was greater in the stance limb than moving limb when performing the front-pull exercise (P < .001). Moving-limb gluteus medius muscle recruitment was greater for the reverse cross-over exercise than for the cross-over, front-pull, and back-pull exercises (P < .001).Conclusions:From a clinical standpoint there is no therapeutic benefit to selectively activate the gluteus maximus and gluteus medius muscles on the stance limb by resisting sagittal- and frontal-plane hip movements on the moving limb using resistance supplied by elastic tubing.

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Perikoxale Schmerzsyndrome – nicht immer einfach zu diagnostizieren

Arthritis und Rheuma ◽

10.1055/s-0037-1616806 ◽

2016 ◽

Vol 36 (01) ◽

pp. 9-14

Author(s):

T. Guttke ◽

I. Arnold

Keyword(s):

Gluteus Maximus ◽

Gluteus Medius ◽

Anterior Inferior Iliac Spine ◽

Tractus Iliotibialis ◽

Tensor Fasciae Latae ◽

Nervus Ischiadicus

ZusammenfassungPertrochantäre Schmerzen stellen ein häufiges klinisches Problem dar. Auch wenn perikoxale Schmerzsyndrome bereits früh beschrieben worden sind, hat die Weiterent-wicklung der arthroskopischen Techniken unter Einbezug der extrakapsulären Kompartimente die Sensibilität für diese häufig fehl -interpretierten Erkrankungsformen erhöht. Voos und Mitarbeiter veröffentlichten 2007 sehr früh ihre ersten Ergebnisse im Hinblick auf endoskopische Interventionen in diesem Zusammenhang (1). Andere Erkrankungsformen wie das “low anterior inferior iliac spine impingement” wurden sogar erst durch die Hüftarthroskopie der Beschreibung zugänglich. Zu den pertrochantären Pathologien, die das laterale Kompartiment betreffen, zählen Bursitiden und Insertionstendinosen der Glutealmuskulatur bis hin zur Ruptur und das Tractus-iliotibialis-Syndrom einschließlich der externen Schnapphüfte. Projektionsschmerzen von der proximalen Lendenwirbelsäule sind in dieser Übersicht nicht berücksichtigt, verursachen aber in bis zu 30 % pertrochantäre Beschwerden. Auf nervaler Ebene können Irritationen des inferioren Glutealnervs mit radikulärem Ursprung L5–S2 (Innervation des M. gluteus maximus) oder des N. gluteus superior (Wurzeln L4–S1; Innervation des M. gluteus medius und minimus, M. tensor fasciae latae und vordere Partien des Hüft gelenks) Trochanter-bezogene Schmerzen imitieren. Im ventralen extraartikulären Kompartiment kann eine Friktion der Sehne des M. iliopsoas ein internes Impingement und Schnappen verant-worten. Natürlich sind differenzialdiagnostisch auch Arthrose-assoziierte muskulotendinöse Kontrakturen oder auch Gangasymmetrien bzw. Störungen im lumbosakralen Übergang mit konsekutiven muskulären Dysbalancen auszuschließen. Aber auch nach Hüftgelenkersatz stellen unzureichend azetabulär-knöchern gedeckte Pfannenkomponenten eine Disposition für eine Irritation der Hüftbeuger dar. Anatomisch dem posterioren Bereich zugeordnet sind die Strukturen um den Nervus ischiadicus (z. B. Entrapmentphänomene durch fibrinöse Stränge), die Hüftaußenrotatoren und explizit der M. piriformis. Aber auch Insertionstendinopathien der Hamstrings sind differenzialdiagnostisch perikoxalen Schmerzsyndromen zuzuordnen.

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