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

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

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

2014 ◽  
Vol 23 (1) ◽  
pp. 1-11 ◽  
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.

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

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 &lt; 0.005). The ILC increased by 1.3% for GMAX and 0.5% for GMED (both p &lt; 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.

Hip Joint Contact Forces During Running with a Transtibial Amputation

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.

Comparison of gluteus medius muscle activity during functional tasks in individuals with and without osteoarthritis of the hip joint

2013 ◽  
Vol 28 (7) ◽  
pp. 757-761 ◽  
Author(s):  
Maureen K. Dwyer ◽  
Kelly Stafford ◽  
Carl G. Mattacola ◽  
Timothy L. Uhl ◽  
Mauro Giordani
Keyword(s):  
Hip Joint ◽  
Muscle Activity ◽  
Gluteus Medius ◽  
Osteoarthritis Of The Hip ◽  
Gluteus Medius Muscle

A formula to predict patients’ gluteus medius muscle volume from hip joint geometry

2011 ◽  
Vol 16 (5) ◽  
pp. 447-451 ◽  
Author(s):  
Bernd Preininger ◽  
Kathrin Schmorl ◽  
Philipp von Roth ◽  
Tobias Winkler ◽  
Peter Schlattmann ◽  
...  
Keyword(s):  
Hip Joint ◽  
Gluteus Medius ◽  
Muscle Volume ◽  
Gluteus Medius Muscle ◽  
Joint Geometry

Magnitudes of gluteus medius muscle activation during standing hip joint movements in spiral-diagonal patterns using elastic tubing resistance

2015 ◽  
Vol 31 (6) ◽  
pp. 410-417
Author(s):  
James W. Youdas ◽  
Kady E. Adams ◽  
John E. Bertucci ◽  
Koel J. Brooks ◽  
Meghan M. Steiner ◽  
...  
Keyword(s):  
Hip Joint ◽  
Muscle Activation ◽  
Gluteus Medius ◽  
Gluteus Medius Muscle

scholarly journals Postoperative excessive external femoral rotation in revision total hip arthroplasty is associated with muscle weakness in iliopsoas and gluteus medius and risk for hip dislocation

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Hyonmin Choe ◽  
Naomi Kobayashi ◽  
Daigo Kobayashi ◽  
Shintaro Watanabe ◽  
Koki Abe ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Joint ◽  
Hip Arthroplasty ◽  
Hip Dislocation ◽  
Gluteus Medius ◽  
Revision Total Hip Arthroplasty ◽  
Femoral Rotation ◽  
Gluteus Medius Muscle ◽  
Factors Associated ◽  
Revision Tha

Abstract Background Excessive external femoral rotation (FR) can functionally increase stem anteversion (SA) and is often observed at an early stage after surgery in revision total hip arthroplasty (THA). This study was conducted to investigate the prevalence of external FR, identify the factors associated with external FR, and determine the association of FR and other factors with hip dislocation in revision THA. Methods We enrolled 51 revision THA patients (55 hip cases). The patient background, angle of anatomical and functional SA, FR angle, sizes and densities of muscles around the hip joint, impingement distance, and consequence of postoperative hip dislocation were assessed by reviewing their medical history and imaging data that includes computed tomography (CT) scans before and after surgery. Results Forty-five hip cases (81.8%) showed external FR (mean 13.0°). External FR was significantly correlated with anatomical SA (r =  − 0.54) and increase in functional SA (r = 0.36), which was significantly correlated with impingement distance (r = 0.46). The independent factors associated with external FR in multivariate analysis were the anatomical SA, CT densities of the psoas, gluteus medius and maximus muscles, and 2-stage revision (R2 = 0.559). During follow-up period, eight cases of revision THA showed hip dislocation. FR, functional SA, impingement distance, CT density of psoas and gluteus medius muscle, body mass index, number of past operation, and ratio of 2-stage revision THA were significantly different between cases with dislocation and non-dislocation. The odds ratio of FR and impingement distance for hip dislocation was identified as 1.061(95% confidence interval (CI): 1.011–1.114) and 0.901 (95% CI 0.820–0.991), respectively. Conclusions Revision THA frequently causes an external FR that functionally increases the SA and impingement risk, particularly in hips with 2-stage revision with psoas and gluteus medius muscle atrophy. Patients who have undergone revision THA and have an excessive external FR may require careful monitoring for possible hip dislocation due to hip joint instability and impingement.

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