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Akiho S, Hashida R, Tagawa Y, Maeyama A, Kinoshita K, Kanazawa K, Matsuse H, Hara M, Yamamoto T. Bone morphology and physical characteristics of the pro-cyclist hip joint. INTERNATIONAL ORTHOPAEDICS 2024; 48:1879-1886. [PMID: 38700698 PMCID: PMC11176226 DOI: 10.1007/s00264-024-06196-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/19/2024] [Indexed: 06/14/2024]
Abstract
PURPOSE This study aimed to investigate the radiographic findings for the hip joint and hip range of motion in professional cyclists, and to determine their bone morphology and physical characteristics. The effects of physical characteristics on athletic performance were examined in terms of metabolic efficiency using simulation analysis. METHODS We performed a case-control research study on 22 hips in 11 male professional cyclists (average age 28.5, height 1.73 m, weight 77.6 kg). Thirty hips in 15 healthy male volunteers were selected as controls. As radiographic evaluations, acetabular dysplasia was assessed on standardized radiographs. During physical evaluations, the hip range of motion was examined. We used simulation analysis to investigate the metabolic efficiency in the different cycling forms. RESULTS The radiographic evaluations showed a significant difference in the incidence of acetabular dysplasia (p = 0.01): 59% (13/22 hips) in the pro-cyclist group versus 10% (3/30 hips) in the control group. The physical evaluations revealed significant differences in the hip internal rotation angle (p = 0.01), with greater ranges of internal rotation in the pro-cyclist group versus the control group. The simulation analyses showed that metabolism was reduced in the cycling form with hip internal rotation, especially in the lower extremities. CONCLUSIONS Pro-cyclists showed a high frequency of acetabular dysplasia and superior hip internal rotation. According to the cycling model analyses, hip internal rotation allowed pedaling with reduced metabolic power.
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Affiliation(s)
- Shunsuke Akiho
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 810-0180, Japan.
- Orthopaedic Surgery, Fukuoka Seisyukai Hospital, 4-11-8 Chojyabarunishi, Kasuya-Machi, Kasuya-Gun, Fukuoka, 811-2316, Japan.
- Orthopaedic Surgery, Hisatsune Hospital, 152-1 Tadomiushimaru, Sime-Machi, Kasuya-Gun, Fukuoka, 811-2204, Japan.
| | - Ryuki Hashida
- Division of Rehabilitation, Kurume University Hospital, 67 Asahimachi, Kurume, 830-0011, Japan
- Department of Orthopaedic, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
| | - Yoshihiko Tagawa
- Division of Rehabilitation, Kurume University Hospital, 67 Asahimachi, Kurume, 830-0011, Japan
| | - Akira Maeyama
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 810-0180, Japan
| | - Koichi Kinoshita
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 810-0180, Japan
| | - Kazuki Kanazawa
- Orthopaedic Surgery, Fukuoka Seisyukai Hospital, 4-11-8 Chojyabarunishi, Kasuya-Machi, Kasuya-Gun, Fukuoka, 811-2316, Japan
| | - Hiroo Matsuse
- Division of Rehabilitation, Kurume University Hospital, 67 Asahimachi, Kurume, 830-0011, Japan
- Department of Orthopaedic, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
| | - Masafumi Hara
- Orthopaedic Surgery, Hisatsune Hospital, 152-1 Tadomiushimaru, Sime-Machi, Kasuya-Gun, Fukuoka, 811-2204, Japan
| | - Takuaki Yamamoto
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 810-0180, Japan
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Anable NR, Luginsland LA, Carlos C, Stevens WR, Loewen AM, Jeans KA, Sucato DJ. Investigating pelvic drop gait abnormality in adolescent hip pathology patients. Gait Posture 2024; 110:65-70. [PMID: 38518557 DOI: 10.1016/j.gaitpost.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 02/09/2024] [Accepted: 03/08/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Trendelenburg gait describes contralateral pelvic drop during single leg stance (SLS) with occasional lateral trunk lean compensation over the stance limb. However, quantitative research on 'uncompensated Trendelenburg' gait (pelvic drop independent of lateral trunk lean) remains sparse among populations that commonly utilize this gait pattern, such as adolescent hip pathology patients. RESEARCH QUESTION How prevalent is uncompensated Trendelenburg among various adolescent hip pathologies and how is it related to hip load, hip abduction strength, and self-reported hip pain? METHODS Gait, strength, and pain data were collected among 152 pre-operative patients clinically diagnosed with acetabular hip dysplasia, femoroacetabular impingement, Legg-Calvé-Perthes, or slipped capital femoral epiphysis (SCFE). Patients with ≥ 5.4° of dynamic pelvic drop in SLS were divided into a 'pelvic drop' group and screened to exclude those with excessive ipsilateral trunk lean. They were then compared to the 'stable pelvis' patients using a Mann-Whitney test. RESULTS Dysplasia patients represented the highest proportion of the pelvic drop group (46%). The pelvic drop group showed a significant increase in self-reported hip pain (p = 0.011), maximum hip abductor moment (p = 0.002), and peak coronal power absorption at the affected hip during SLS loading response, (p < 0.001) while showing no difference in abduction strength (p = 0.381). SIGNIFICANCE Uncompensated Trendelenburg gait may lead to increased loading of the affected hip in adolescent hip pathology patients. Disadvantageous hip biomechanics can create increased abductor muscle demand among these pathological populations, with dysplasia patients showing the highest prevalence. Maximal abduction strength did not correlate with pelvic drop. Future work should aim to identify and quantify causal factors. Increased coronal hip power absorption during weight acceptance warrants clinical attention, as there may be a detrimental, over-reliance on passive hip structures to support load among a population that that is already predisposed to hip osteoarthritis.
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O'Neill MC, Nagano A, Umberger BR. A three-dimensional musculoskeletal model of the pelvis and lower limb of Australopithecus afarensis. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024; 183:e24845. [PMID: 37671481 DOI: 10.1002/ajpa.24845] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 07/08/2023] [Accepted: 08/17/2023] [Indexed: 09/07/2023]
Abstract
OBJECTIVES Musculoskeletal modeling is a powerful approach for studying the biomechanics and energetics of locomotion. Australopithecus (A.) afarensis is among the best represented fossil hominins and provides critical information about the evolution of musculoskeletal design and locomotion in the hominin lineage. Here, we develop and evaluate a three-dimensional (3-D) musculoskeletal model of the pelvis and lower limb of A. afarensis for predicting muscle-tendon moment arms and moment-generating capacities across lower limb joint positions encompassing a range of locomotor behaviors. MATERIALS AND METHODS A 3-D musculoskeletal model of an adult A. afarensis pelvis and lower limb was developed based primarily on the A.L. 288-1 partial skeleton. The model includes geometric representations of bones, joints and 35 muscle-tendon units represented using 43 Hill-type muscle models. Two muscle parameter datasets were created from human and chimpanzee sources. 3-D muscle-tendon moment arms and isometric joint moments were predicted over a wide range of joint positions. RESULTS Predicted muscle-tendon moment arms generally agreed with skeletal metrics, and corresponded with human and chimpanzee models. Human and chimpanzee-based muscle parameterizations were similar, with some differences in maximum isometric force-producing capabilities. The model is amenable to size scaling from A.L. 288-1 to the larger KSD-VP-1/1, which subsumes a wide range of size variation in A. afarensis. DISCUSSION This model represents an important tool for studying the integrated function of the neuromusculoskeletal systems in A. afarensis. It is similar to current human and chimpanzee models in musculoskeletal detail, and will permit direct, comparative 3-D simulation studies.
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Affiliation(s)
- Matthew C O'Neill
- Department of Anatomy, Midwestern University, Glendale, Arizona, USA
| | - Akinori Nagano
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Brian R Umberger
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, USA
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Yi KH, Kim DC, Lee S, Lee HJ, Lee JH. Intramuscular Neural Distribution of the Gluteus Maximus Muscle: Diagnostic Electromyography and Injective Treatments. Diagnostics (Basel) 2024; 14:140. [PMID: 38248017 PMCID: PMC10813873 DOI: 10.3390/diagnostics14020140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION The purpose of this study was to investigate neural patterns within the gluteus maximus (Gmax) muscle to identify optimal EMG placement and injection sites for botulinum toxin and other injectable agents. METHODS This study used 10 fixed and 1 non-fixed adult Korean cadavers. Intramuscular arborization patterns were confirmed in the cranial, middle, and caudal segments of 20 Gmax muscles using Sihler staining. Ultrasound images were obtained from one cadaver, and blue dye was injected using ultrasound guidance to confirm the results. RESULTS The intramuscular innervation pattern of the Gmax was mostly in the middle part of this muscle. The nerve endings of the Gmax are mainly located in the 40-70% range in the cranial segment, the 30-60% range in the middle segment, and the 40-70% range in the caudal segment. DISCUSSION Addressing the spasticity of the gluteus maximus requires precise, site-specific botulinum toxin injections. The use of EMG and other injection therapies should be guided by the findings of this study. We propose that these specific sites, which correspond to areas with the densest nerve branches, are the safest and most efficient locations for both botulinum toxin injections and EMG procedures.
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Affiliation(s)
- Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea;
- Maylin Clinic (Apgujeong), Seoul 06005, Republic of Korea
| | - Dong Chan Kim
- Department of Rehabilitation Medicine, Eunpyeong St. Mary’s Hospital, Seoul 03312, Republic of Korea;
| | - Siyun Lee
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA;
| | - Hyung-Jin Lee
- Catholic Institute for Applied Anatomy, Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
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Perraton Z, Mosler AB, Lawrenson PR, Weber Ii K, Elliott JM, Wesselink EO, Crossley KM, Kemp JL, Stewart C, Girdwood M, King MG, Heerey JJ, Scholes MJ, Mentiplay BF, Semciw AI. The association between lateral hip muscle size/intramuscular fat infiltration and hip strength in active young adults with long standing hip/groin pain. Phys Ther Sport 2024; 65:95-101. [PMID: 38101293 DOI: 10.1016/j.ptsp.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
OBJECTIVES To investigate associations between lateral hip muscle size/intramuscular fat infiltration (MFI) and hip strength in active young adults with longstanding hip/groin pain. DESIGN Cross-sectional study. SETTING University/Clinical. PARTICIPANTS Sub-elite soccer and Australian Football players (n = 180; 37 female) with long standing hip/groin pain. MAIN OUTCOME MEASURES Muscle size (volume) and MFI of gluteus maximus, medius, and minimis, and tensor fascia latae (TFL) were assessed using magnetic resonance imaging. Isometric hip strength was measured with handheld dynamometry. Associations between muscle size/MFI were assessed using linear regression models, adjusted for body mass index and age, with sex-specific interactions. RESULTS Positive associations were identified between lateral hip muscle volume and hip muscle strength, particularly for gluteus maximus and gluteus minimus volume. For all muscles, hip abduction was associated with an increase in strength by up to 0.69 N (R2 ranging from 0.29 to 0.39). These relationships were consistent across sexes with no sex interactions observed. No associations were found between MFI and strength measures. CONCLUSION Greater lateral hip muscle volumes are associated with greater hip strength in active young adults with long standing hip/groin pain, irrespective of sex. Gluteus maximus and minimus volume showed the most consistent relationships with hip strength across multiple directions.
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Affiliation(s)
- Zuzana Perraton
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Andrea B Mosler
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
| | - Peter R Lawrenson
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia; School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia; Innovation and Research Centre, Community and Oral Health Directorate, Metro North Health, Brisbane, Australia.
| | - Kenneth Weber Ii
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Palo Alto, CA, USA.
| | - James M Elliott
- School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia; Faculty of Medicine and Health, Northern Sydney Local Health District & The University of Sydney, The Kolling Institute St Leonards, NSW, Australia.
| | - Evert O Wesselink
- Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
| | - Kay M Crossley
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Joanne L Kemp
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Christopher Stewart
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Michael Girdwood
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Matthew G King
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia; Discipline of Physiotherapy, School of Allied Health, Human Services and Sport, La Trobe University, Australia.
| | - Joshua J Heerey
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Mark J Scholes
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia; Discipline of Physiotherapy, School of Allied Health, Human Services and Sport, La Trobe University, Australia.
| | - Benjamin F Mentiplay
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
| | - Adam I Semciw
- Discipline of Physiotherapy, School of Allied Health, Human Services and Sport, La Trobe University, Australia; Department of Allied Health Research, Northern Health, Epping, Victoria, Australia.
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Bogey R. An EMG-to-Force Processing Approach to Estimating Knee Muscle Forces during Adult, Self-Selected Speed Gait. Bioengineering (Basel) 2023; 10:980. [PMID: 37627865 PMCID: PMC10451826 DOI: 10.3390/bioengineering10080980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/09/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The purpose of this study was to determine the force production during self-selected speed normal gait by muscle-tendon units that cross the knee. The force of a single knee muscle is not directly measurable without invasive methods, yet invasive techniques are not appropriate for clinical use. Thus, an EMG-to-force processing (EFP) model was developed which scaled muscle-tendon unit (MTU) force output to gait EMG. METHODS An EMG-to-force processing (EFP) model was developed which scaled muscle-tendon unit (MTU) force output to gait EMG. Active muscle force power was defined as the product of MTU forces (derived from EFP) and that muscle's contraction velocity. Net knee EFP moment was determined by summing individual active knee muscle moments. Net knee moments were also calculated for these study participants via inverse dynamics (kinetics plus kinematics, KIN). The inverse dynamics technique used are well accepted and the KIN net moment was used to validate or reject this model. Closeness of fit of the moment power curves for the two methods (during active muscle forces) was used to validate the model. RESULTS The correlation between the EFP and KIN methods was sufficiently close, suggesting validation of the model's ability to provide reasonable estimates of knee muscle forces. CONCLUSIONS The EMG-to-force processing approach provides reasonable estimates of active individual knee muscle forces in self-selected speed walking in neurologically intact adults.
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Affiliation(s)
- Ross Bogey
- Department of Physical Medicine and Rehabilitation, Western University of the Health Sciences, 309 East 2nd Street, Pomona, CA 91766, USA
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Kline PW, Christiansen CL, Judd DL, Mañago MM. Clinical utility of the Trendelenburg Test in people with multiple sclerosis. Physiother Theory Pract 2023; 39:1016-1023. [PMID: 35073816 PMCID: PMC9536282 DOI: 10.1080/09593985.2022.2030446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 10/14/2021] [Accepted: 12/18/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The clinical utility of the Trendelenburg Test remains unknown in people with multiple sclerosis (MS). OBJECTIVE To measure (1) intra-rater reliability, (2) agreement of goniometer-assessed Trendelenburg pelvis-on-femur angle (POF) with motion capture, and (3) concurrent validity of Trendelenburg POF and hip abduction strength with POF during walking and step negotiation. METHODS Trendelenburg POF was measured in 20 people with MS using goniometry and motion analysis. In addition, peak POF was measured using motion analysis during walking, step ascent, and step descent. Intra-rater reliability of goniometer-assessed Trendelenburg POF and agreement with motion analysis-assessed POF were analyzed. Pearson's r was used to determine the relationships between Trendelenburg POF and hip abduction strength with peak POF during each functional activity. RESULTS Goniometer-assessed Trendelenburg POF demonstrated very strong reliability (ICC: 0.948), strong agreement with 3D motion analysis (ICC: 0.792), correlated moderately with peak POF during walking (r = 0.519) and step ascent (r = 0.572), and weakly with step descent (r = 0.463). Hip abductor strength correlated weakly with peak POF during step ascent (r = -0.307) and negligibly during walking (r = -0.270) and step descent (r = -0.249). CONCLUSIONS Goniometer-assessed Trendelenburg POF was reliable, agreed with motion analysis, and may provide insight into hip abduction muscle performance during functional activities in people with MS.
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Affiliation(s)
- Paul W. Kline
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, United States
- VA Eastern Colorado Geriatric Research, Education, and Clinical Center, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States
- Department of Physical Therapy, High Point University, One University Parkway, High Point, NC United States
| | - Cory L. Christiansen
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, United States
- VA Eastern Colorado Geriatric Research, Education, and Clinical Center, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States
| | - Dana L. Judd
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, United States
| | - Mark M Mañago
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, United States
- VA Eastern Colorado Geriatric Research, Education, and Clinical Center, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States
- Department of Neurology, University of Colorado Anschutz Medical Campus Aurora, CO, United States
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Rostron ZPJ, Zacharias A, Semciw AI, Kingsley M, Pizzari T, Woodley SJ, Green R. Comparison between a targeted exercise program and a sham intervention on gluteal muscle activity in people with hip osteoarthritis: Analysis of secondary outcomes from a randomised clinical trial. Gait Posture 2023; 100:33-40. [PMID: 36469965 DOI: 10.1016/j.gaitpost.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/23/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND People with hip osteoarthritis (OA) typically display altered gluteus minimus (GMin) and gluteus medius (GMed) activity during gait, in addition to reduced walking speed and stride length. It is unknown if current rehabilitation programs address changes in gluteal muscle activity in people with hip OA. RESEARCH QUESTION Can a targeted gluteal intervention restore normal gluteal muscle segment activity during gait in people with hip OA? METHODS This study presents secondary outcomes from a multi-site, double-blinded clinical trial in which participants with radiologically confirmed mild-moderate hip OA were randomised into a targeted gluteal or sham intervention for 12-weeks following baseline testing. Electromyography (EMG) outcomes were only conducted at a single site and data were collected from 22 participants. Intramuscular electrodes were inserted into two segments of GMin (anterior, posterior) and three segments of GMed (anterior, middle, posterior) to record average amplitude, peak amplitude and time to peak (TTP) during the first 60 % of the gait cycle (stance phase) at baseline and post-intervention. RESULTS Following the targeted gluteal intervention, posterior GMin displayed a decrease in average (P = 0.032, ES=1.04) and peak (P = 0.017, ES=1.17) muscle activity during late stance phase with a shift to an earlier TTP (P = 0.034, ES=1.02). There were no further significant changes between groups for other outcome measures. Similar trends for an earlier TTP were observed for the posterior segment of GMed following the targeted intervention (P = 0.095, ES=0.87). The earlier TTP in the posterior segments of both GMin and GMed post-intervention resembled patterns observed in a healthy young population. SIGNIFICANCE A targeted gluteal intervention can positively impact activity in posterior GMin during gait in people with hip OA when compared to a sham intervention.
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Affiliation(s)
- Zachary P J Rostron
- Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, Australia.
| | - Anita Zacharias
- Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, Australia
| | - Adam I Semciw
- Department of Physiotherapy, Podiatry, and Pr osthetics and Orthotics, School of Allied Health La Trobe University, Bundoora, VIC, Australia; School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Michael Kingsley
- Department of Exercise Sciences, Faculty of Science, University of Auckland, Auckland, New Zealand; Holsworth Research Initiative, College of Science, Health & Engineering, La Trobe University, Bendigo, VIC, Australia
| | - Tania Pizzari
- Department of Physiotherapy, Podiatry, and Pr osthetics and Orthotics, School of Allied Health La Trobe University, Bundoora, VIC, Australia
| | - Stephanie J Woodley
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Rodney Green
- Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, Australia
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Schenk P, Dimitriou D, Rahm S, Zimmermann SM, Finsterwald M, Higashigaito K, Sutter R, Zingg PO. Natural History of Degenerative Hip Abductor Tendon Lesions. Am J Sports Med 2023; 51:160-168. [PMID: 36412545 PMCID: PMC9810830 DOI: 10.1177/03635465221135759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The best treatment of degenerative hip abductor tendon lesions remains largely unknown, as the natural course of the disease has not yet been reported. The aim of the present study was to investigate the natural history of symptomatic degenerative hip abductor lesions. HYPOTHESIS Nonoperatively treated hip abductor lesions progress over time, resulting in refractory hip pain and low functional outcomes. STUDY DESIGN Case series (prognosis); Level of evidence, 4. METHODS Consecutive patients with greater trochanteric pain syndrome and degenerative changes on magnetic resonance imaging (MRI) of the symptomatic hip were included. Bilateral hip MRI scans and a clinical examination were performed at a minimum follow-up of 36 months to study the type and location of hip abductor lesion. Progression of a lesion was defined as a more severe lesion as compared with the initial MRI results or if the lesion extended to another, initially not involved, trochanteric facet. The muscle's fatty infiltration (FI) was also described. RESULTS From 106 patients identified, 58 patients (64 hips) aged 66 ± 14 years (mean ± SD) agreed to return to the clinic for follow-up MRI and met the inclusion criteria. At a mean 71-month follow-up, an overall 34% (22/64) of lesions had progressed over time: from trochanteric bursitis to tendinopathy (9/64, 14%) or partial tear (5/64, 8%), from tendinopathy to partial tear (4/64, 6%), from a partial to complete tear (3/64, 4.5%), and with 1 complete tear (1/64, 1.5%) extending to another trochanteric facet. Interestingly, 90% of partial tears remained stable or transformed into a scar. Although patients with a progressive lesion experienced more trochanteric pain (visual analog scale, 4.6 vs 2.8; P = .001), the functional outcomes were comparable with patients with a stable lesion. The majority of hips with a partial tear (64%) demonstrated a progression of gluteus minimus FI from a median grade of 1 to 2, whereas only 1 hip (3%) progressed from grade 2 to 3. Only 3 hips (9%) with a partial tear had a progression of gluteus medius FI, which did not differ significantly from the contralateral unaffected side. CONCLUSION Nonoperative treatment might be a valid long-term option for degenerative hip abductor lesions, especially for partial tears, which demonstrated a low risk of clinically relevant progression or muscle FI and similar clinical outcomes to those reported in the literature for operatively treated hip abductor tendon lesions.
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Affiliation(s)
- Pascal Schenk
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Dimitris Dimitriou
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland,Dimitris Dimitriou, MD, Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Forchstrasse 340, 8008, Zürich,
Switzerland ()
| | - Stefan Rahm
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Stefan M. Zimmermann
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Michael Finsterwald
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Kai Higashigaito
- Department of Radiology, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Reto Sutter
- Department of Radiology, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
| | - Patrick O. Zingg
- Department of Orthopedics, University
Hospital Balgrist, University of Zürich, Zürich, Switzerland
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Rostron ZPJ, Zacharias A, Semciw AI, Kingsley M, Pizzari T, Woodley SJ, Green R. Effects of a targeted resistance intervention compared to a sham intervention on gluteal muscle hypertrophy, fatty infiltration and strength in people with hip osteoarthritis: analysis of secondary outcomes from a randomised clinical trial. BMC Musculoskelet Disord 2022; 23:944. [PMID: 36309690 PMCID: PMC9617418 DOI: 10.1186/s12891-022-05907-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/24/2022] [Indexed: 11/12/2022] Open
Abstract
Background People with hip osteoarthritis are typically offered a combination of education and exercise to address muscle atrophy and weakness. Limited evidence exists to assess the efficacy of exercise programs on muscle structure or function in this population. The aim of this study was to evaluate the effects of targeted resistance exercise on gluteal muscle hypertrophy and strength in people with mild-to-moderate hip osteoarthritis. Methods Twenty-seven participants with radiologically confirmed hip osteoarthritis recruited from a single site of a multi-site, double-blind clinical trial were randomly allocated to receive a 12-week targeted gluteal intervention or sham intervention. Magnetic resonance imaging and hand-held dynamometry were used to determine change in gluteal muscle volume, fatty infiltration and hip muscle strength. For gluteal muscle volume and strength outcomes mixed model analyses of variance (ANOVA) were conducted. A general linear model (ANOVA) analysis with fixed effects parameter estimates was used to assess the impact of sex on gluteal muscle size and strength of the affected limb only. For muscle fat index a mixed method ANOVA was used to assess the differences between groups and over time. Results In the targeted intervention group, gluteus minimus volume increased from baseline to post-intervention in both limbs (pooled mean difference: 0.06 cm3/kg, 95% confidence interval: 0.01 to 0.11) while no change occurred in the sham group (time x group effect: P = 0.025). Gluteus medius, gluteus maximus and tensor fascia lata volume did not change significantly over time. Hip strength (abduction, adduction, flexion, extension, external and internal rotation) improved similarly in both groups (time main effect: P ≤ 0.042). There was a consistent, albeit non-significant, pattern of reduced fatty infiltration after the targeted intervention. Conclusion Targeted resistance exercise resulted in gluteus minimus hypertrophy, but improvements in hip strength occurred in both groups. Clinicians delivering hip osteoarthritis rehabilitation programs might consider implementing a targeted exercise program to attenuate disease associated changes within gluteal muscles. Trial registration Australian New Zealand Clinical Trials Registry, ID: ACTRN12617000970347. Registered prospectively on 5 July 2017. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05907-4.
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11
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Retchford TH, Tucker KJ, Hart HF, Semciw AI, Weinrauch P, Grimaldi A, Cowan SM, Crossley KM, Kemp JL. No Difference in Hip Muscle Volumes and Fatty Infiltration in Those With Hip-Related Pain Compared to Controls. Int J Sports Phys Ther 2022; 17:851-862. [PMID: 35949368 PMCID: PMC9340835 DOI: 10.26603/001c.36528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/09/2022] [Indexed: 11/18/2022] Open
Abstract
Background Little is known about muscle morphology in people with hip-related pain, without signs of femoro-acetabular impingement syndrome (FAIS). Identifying changes in hip muscle volume, fatty infiltrate and establishing relationships between muscle volume and strength, may provide insight into potential early treatment strategies. Purposes To: (i) compare the volumes and fatty infiltrate of gluteus maximus, gluteus medius, gluteus minimis, tensor fascia latae and quadratus femoris between symptomatic and less-symptomatic sides of participants with hip-related pain; (ii) compare the volumes and fatty infiltrate of hip muscles between healthy controls and symptomatic participants; and (iii) explore relationships of hip muscle volumes to muscle strength and patient-reported outcome measures in people with hip-related pain. Study Design Cross-sectional study. Methods Muscle volume and fatty infiltrate (from magnetic resonance imaging), hip muscle strength, patient-reported symptoms, function and quality of life (QOL) were determined for 16 participants with hip-related pain (no clinical signs of FAIS; 37±9 years) and 15 controls (31±9 years). Using One Way Analysis of Co-Variance tests, muscle volume and fatty infiltrate was compared between the symptomatic and less-symptomatic sides in participants with hip-related pain as well as between healthy controls and symptomatic participants. In addition, hip muscle volume was correlated with hip muscle strength, hip-reported symptoms, function and QOL. Results No differences in all the studied muscle volumes or fatty infiltrate were identified between the symptomatic and less-symptomatic hips of people with hip-related pain; or between people with and without hip-related pain. Greater GMED volume on the symptomatic side was associated with less symptoms and better function and QOL (ρ=0.522-0.617) for those with hip-related pain. Larger GMAX volume was associated with greater hip abduction and internal rotation strength, larger GMED volume was associated with greater hip extension strength, and larger QF volume was associated with greater hip abduction strength (rho=0.507-0.638). Conclusion People with hip-related pain and no clinical signs of FAIS have hip muscle volumes that are not significantly different than those of matched pain-free controls or their less-symptomatic hip. Larger GMED muscle volume was associated with fewer symptoms and greater strength. Level of evidence Level 3a.
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Affiliation(s)
| | | | - Harvi F Hart
- La Trobe University; Bone and Joint Institute, Western University
| | - Adam I Semciw
- La Trobe University; Northern Centre for Health, Education and Research- The Northern Hospital
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12
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Shitara T, Goto R, Ito K, Hirasaki E, Nakano Y. Hip medial rotator action of gluteus medius in Japanese macaque (Macaca fuscata) and implications to adaptive significance for quadrupedal walking in primates. J Anat 2022; 241:407-419. [PMID: 35357010 PMCID: PMC9296037 DOI: 10.1111/joa.13658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 02/10/2022] [Accepted: 03/10/2022] [Indexed: 11/30/2022] Open
Abstract
The gluteus medius (GM) muscle in quadrupedal primates has long been thought to mainly act as a hip extensor. However, previous reports argue that it may be a prime hip medial rotator and functions to rotate the pelvis in the horizontal plane, suggesting the functional differentiation between the GM and other hip extensors as hamstrings. In this study, we aim to quantify the muscle actions of the GM and hamstrings using muscle moment arm lengths and discuss the functional differentiation among hip extensors. Muscle attachment sites of eight specimens of Japanese macaque (Macaca fuscata) were digitized, and musculoskeletal models were constructed. Flexor-extensor, abductor-adductor, and medial-lateral rotator moment arms were calculated as the models were moved following the experimentally acquired kinematic data during walking on a pole substrate. Using electromyography, we also recorded the pattern of muscle activation. The GM showed a larger medial rotator moment arm length than the extensor moment arm length when it was activated, suggesting this muscle acts mainly as a hip medial rotator rather than as a hip extensor. The medial rotator action of the GM in the early support phase may rotate the pelvis in the horizontal plane and function to help contralateral forelimb reaching as a previous study suggested and facilitate contralateral hindlimb swinging to place the foot near the ipsilateral forelimb's hand.
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Affiliation(s)
- Tetsuya Shitara
- Laboratory of Biological Anthropology, Graduate School of Human SciencesOsaka UniversitySuitaOsakaJapan
| | - Ryosuke Goto
- Faculty of RehabilitationGunma Paz UniversityTakasakiGunmaJapan
| | - Kohta Ito
- Laboratory of Biological Anthropology, Graduate School of Human SciencesOsaka UniversitySuitaOsakaJapan
| | - Eishi Hirasaki
- Section of Evolutionary Morphology, Primate Research InstituteKyoto UniversityInuyamaAichiJapan
| | - Yoshihiko Nakano
- Laboratory of Biological Anthropology, Graduate School of Human SciencesOsaka UniversitySuitaOsakaJapan
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13
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Koch K, Semciw AI, Commean PK, Hillen TJ, Fitzgerald GK, Clohisy JC, Harris-Hayes M. Comparison between movement pattern training and strengthening on muscle volume, muscle fat, and strength in patients with hip-related groin pain: An exploratory analysis. J Orthop Res 2022; 40:1375-1386. [PMID: 34370330 PMCID: PMC8825882 DOI: 10.1002/jor.25158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 06/29/2021] [Accepted: 08/03/2021] [Indexed: 02/04/2023]
Abstract
The purpose of this exploratory analysis was to compare the impact of movement pattern training (MoveTrain) and standard strength and flexibility training (Standard) on muscle volume, strength and fatty infiltration in patients with hip-related groin pain (HRGP). We completed a secondary analysis of data collected during an assessor-blinded randomized control trial. Data were used from 27 patients with HRGP, 15-40 years, who were randomized into MoveTrain or Standard groups. Both groups participated in their training protocol (MoveTrain, n = 14 or Standard, n = 13) which included 10 supervised sessions over 12 weeks and a daily home exercise program. Outcome measures were collected at baseline and immediately after treatment. Magnetic resonance images data were used to determine muscle fat index (MFI) and muscle volume. A hand-held dynamometer was used to assess isometric hip abductor and extensor strength. The Standard group demonstrated a significant posttreatment increase in gluteus medius muscle volume compared to the MoveTrain group. Both groups demonstrated an increase in hip abductor strength and reduction in gluteus minimus and gluteus maximus MFI. The magnitude of change for all outcomes were modest. Statement of Clinical Significance: Movement pattern training or a program of strength/flexibility training may be effective at improving hipabductor strength and reducing fatty infiltration in the gluteal musculature among those with HRGP. Further research is needed to betterunderstand etiology of strength changes and impact of muscle volume and MFI in HRGP and the effect of exercise on muscle structure andfunction.
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Affiliation(s)
- Kristen Koch
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Adam I. Semciw
- Department of Physiotherapy, Podiatry and Prosthetics and Orthotics, La Trobe University, Bundoora, Victoria, Australia,Northern Centre for Health Education and Research, Northern Health, Epping, Victoria, Australia
| | - Paul K. Commean
- Electronic Radiology Lab in Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Missouri, USA,Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Travis J. Hillen
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - G. Kelley Fitzgerald
- Department of Physical Therapy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John C. Clohisy
- Department of Orthopaedic Surgery, Washington University School of Medicine, St Louis, Missouri, USA
| | - Marcie Harris-Hayes
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, Missouri, USA,Department of Orthopaedic Surgery, Washington University School of Medicine, St Louis, Missouri, USA
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14
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De la Fuente C, Neira A, Torres G, Silvestre R, Roby M, Yañez R, Herrera S, Martabit V, McKay I, Carpes FP. Effects of Elbow Crutch Locomotion on Gluteus Medius Activation During Stair Ascending. Front Bioeng Biotechnol 2022; 10:890004. [PMID: 35694225 PMCID: PMC9174514 DOI: 10.3389/fbioe.2022.890004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Crutches can help with the locomotion of people with walking disorders or functional limitations. However, little is known about hip muscle activation during stair ascending using different crutch locomotion patterns in people without disorders and limitations. Thus, we determined the acute effects of elbow crutch locomotion on gluteus medius (GM) activity during stair ascending. This comparative analytic cross-sectional study enrolled ten healthy men (22.0 ± 0.47 years). Participants climbed up the stairs with elbow crutches using one or two crutches, with ipsilateral or contralateral use, and after loading or unloading a limb. EMG signals were recorded from anterior, middle, and posterior portions of the GM and compared between the crutch conditions. The Kruskal–Wallis test and Dunn’s multiple comparison test were performed (α = 5%). The activation of the GM increased with the ipsilateral use of crutches, with two crutches and three points, and when all the load depended only on one limb. GM activation decreased with contralateral use and in the unload limb. In conclusion, ascending stairs with elbow crutches alters the GM activation. The more critical factors were choosing the crutches’ lateral use, the number of crutches, and if the limb is loaded or unloaded while ascending the stairs. Our findings can be helpful to increase or decrease the GM activation for those who use or will use crutches.
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Affiliation(s)
- Carlos De la Fuente
- Departamento de Cs. de la Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Laboratory of Neuromechanics, Universidade Federal do Pampa, Uruguaiana, Brazil
- Servicio de Biomecánica, Centro de Innovación, Clínica MEDS, Santiago, Chile
| | - Alejandro Neira
- Escuela Kinesiología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Gustavo Torres
- Departamento de Cs. de la Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rony Silvestre
- Servicio de Biomecánica, Centro de Innovación, Clínica MEDS, Santiago, Chile
| | - Matias Roby
- Servicio de Biomecánica, Centro de Innovación, Clínica MEDS, Santiago, Chile
- Traumatología, Clínica MEDS, Santiago, Chile
| | - Roberto Yañez
- Servicio de Biomecánica, Centro de Innovación, Clínica MEDS, Santiago, Chile
- Traumatología, Clínica MEDS, Santiago, Chile
| | - Sofia Herrera
- Departamento de Cs. de la Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Virgina Martabit
- Departamento de Cs. de la Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Isabel McKay
- Departamento de Cs. de la Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe P. Carpes
- Laboratory of Neuromechanics, Universidade Federal do Pampa, Uruguaiana, Brazil
- *Correspondence: Felipe P. Carpes,
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15
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Peyré-Tartaruga LA, Boccia G, Feijó Martins V, Zoppirolli C, Bortolan L, Pellegrini B. Margins of stability and trunk coordination during Nordic walking. J Biomech 2022; 134:111001. [DOI: 10.1016/j.jbiomech.2022.111001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 10/19/2022]
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16
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Effect of Simulated Changes in Pelvic Tilt on Hip Joint Forces. J Biomech 2022; 135:111048. [PMID: 35325751 PMCID: PMC9255277 DOI: 10.1016/j.jbiomech.2022.111048] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/17/2022] [Accepted: 03/10/2022] [Indexed: 11/20/2022]
Abstract
Musculoskeletal modeling is commonly used to simulate and compare various movements between individuals. For conditions such as femoroacetabular impingement syndrome (FAIS), individuals tend to walk with more anterior pelvic tilt than those without FAIS. However, it is unknown whether accounting for pelvic tilt in musculoskeletal modeling would lead to a change in muscle forces and in turn, joint forces. Gait data of six individuals were collected and processed using Vicon and Visual3D. Each participant's pelvic tilt was adjusted by ± 10° at all time points during gait. Three analyses were performed per individual: no adjustment in tilt, one posterior (positive) tilt, and one anterior (negative) tilt. The resulting data were imported into OpenSim to determine muscle forces and the resulting femur-on-acetabulum (hip joint) forces in the pelvic and femoral reference frames. Data for each participant were normalized for gait cycle and body weight in MATLAB, and statistical parametric mapping was used to determine if the differences in joint and muscle forces were significant across different pelvic orientations. Shifting from posterior to anterior pelvic tilt reduced resultant forces. In the pelvic reference frame, anteriorly-directed joint forces decreased, while medially-directed forces increased. In the femoral reference frame, anteriorly- and medially-directed joint forces increased, while superiorly-directed forces decreased. Anterior gluteus medius and iliacus muscle forces decreased, while quadratus femoris, piriformis, and gemellus muscle forces increased. Given these results, future studies using musculoskeletal modeling should account for pelvic tilt in musculoskeletal models to obtain more realistic comparisons between healthy and pathological conditions.
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17
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Jafarnezhadgero A, Amirzadeh N, Fatollahi A, Siahkouhian M, Oliveira AS, Granacher U. Effects of Running on Sand vs. Stable Ground on Kinetics and Muscle Activities in Individuals With Over-Pronated Feet. Front Physiol 2022; 12:822024. [PMID: 35095577 PMCID: PMC8793830 DOI: 10.3389/fphys.2021.822024] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 12/20/2021] [Indexed: 11/17/2022] Open
Abstract
Background: In terms of physiological and biomechanical characteristics, over-pronation of the feet has been associated with distinct muscle recruitment patterns and ground reaction forces during running. Objective: The aim of this study was to evaluate the effects of running on sand vs. stable ground on ground-reaction-forces (GRFs) and electromyographic (EMG) activity of lower limb muscles in individuals with over-pronated feet (OPF) compared with healthy controls. Methods: Thirty-three OPF individuals and 33 controls ran at preferred speed and in randomized-order over level-ground and sand. A force-plate was embedded in an 18-m runway to collect GRFs. Muscle activities were recorded using an EMG-system. Data were adjusted for surface-related differences in running speed. Results: Running on sand resulted in lower speed compared with stable ground running (p < 0.001; d = 0.83). Results demonstrated that running on sand produced higher tibialis anterior activity (p = 0.024; d = 0.28). Also, findings indicated larger loading rates (p = 0.004; d = 0.72) and greater vastus medialis (p < 0.001; d = 0.89) and rectus femoris (p = 0.001; d = 0.61) activities in OPF individuals. Controls but not OPF showed significantly lower gluteus-medius activity (p = 0.022; d = 0.63) when running on sand. Conclusion: Running on sand resulted in lower running speed and higher tibialis anterior activity during the loading phase. This may indicate alterations in neuromuscular demands in the distal part of the lower limbs when running on sand. In OPF individuals, higher loading rates together with greater quadriceps activity may constitute a proximal compensatory mechanism for distal surface instability.
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Affiliation(s)
- AmirAli Jafarnezhadgero
- Department of Sport Managements and Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Nasrin Amirzadeh
- Department of Sport Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Amir Fatollahi
- Department of Sport Managements and Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Marefat Siahkouhian
- Department of Sport Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
| | | | - Urs Granacher
- Division of Training and Movement Sciences, Research Focus Cognition Sciences, University of Potsdam, Potsdam, Germany
- *Correspondence: Urs Granacher, , orcid.org/0000-0002-7095-813X
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18
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Modelling gluteus medius tendon degeneration and repair in a large animal model. Arch Orthop Trauma Surg 2022; 142:1-12. [PMID: 32813126 DOI: 10.1007/s00402-020-03573-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 08/02/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Gluteus medius tendon tears often occur in the context of chronic tendinopathy and remain a difficult clinical problem. Surgical repair is challenging as it is often delayed and performed in degenerative tendons. No animal model currently exists to mimic the delayed repair of tendinopathic gluteus medius tears. The aims of this study were to develop a chronic model of gluteus medius tendinopathy and tear and then compare this model to an acute gluteus medius tear and repair. MATERIALS AND METHODS Six gluteus medius muscles were dissected and examined in mature sheep to confirm anatomical similarity to the human counterpart. Ten separate adult sheep underwent tendon detachment, followed by relook and histological sampling at 6 and 16 weeks to assess the extent of tendon degeneration. Six adult sheep underwent tendon repair at 6 weeks and were later assessed for healing of the tendon and compared to a further four adult sheep who underwent an acute tendon detachment and repair procedure. RESULTS The sheep gluteus medius muscle consisted of three compartments, the anterior, middle and posterior. All compartments inserted via the common tendon on the superolateral aspect of the greater trochanter. At both 6 and 16 weeks, there was significant tendinopathic changes on histology compared to controls as assessed by modified Movin's score (p = 0.018, p = 0.047) but no difference between the 6- and 16-week groups (p = 0.25). There were significant differences between delayed and acute repair in both histological appearance (p = 0.025) and biomechanical properties (p = 0.019), with acute repair superior in both. CONCLUSIONS Tendon detachment for 6 weeks is sufficient to produce histological changes similar to chronic tendinopathy and repair of this degenerative tendon results in significantly poorer healing when compared to an acute repair model. Animal models for gluteus medius tears should use a delayed repair model to improve clinical validity.
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19
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Haksever B, Micoogullari M, Soylu C, Baltaci Y. Does gluteus medius muscle strength affect balance and jumping performance in elite female handball players? Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Rostron ZPJ, Green RA, Kingsley M, Zacharias A. Efficacy of Exercise-Based Rehabilitation Programs for Improving Muscle Function and Size in People with Hip Osteoarthritis: A Systematic Review with Meta-Analysis. BIOLOGY 2021; 10:biology10121251. [PMID: 34943166 PMCID: PMC8698712 DOI: 10.3390/biology10121251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022]
Abstract
Objective: To determine the effect of exercise-based rehabilitation programs on hip and knee muscle function and size in people with hip osteoarthritis. Methods: Seven databases were systematically searched in order to identify studies that assessed muscle function (strength or power) and size in people with hip osteoarthritis after exercise-based rehabilitation programs. Studies were screened for eligibility and assessed for quality of evidence using the GRADE approach. Data were pooled, and meta-analyses was completed on 7 of the 11 included studies. Results: Six studies reported hip and/or knee function outcomes, and two reported muscle volumes that could be included in meta-analyses. Meta-analyses were conducted for four strength measures (hip abduction, hip extension, hip flexion, and knee extension) and muscle size (quadriceps femoris volume). For hip abduction, there was a low certainty of evidence with a small important effect (effect size = 0.28, 95% CI = 0.01, 0.54) favouring high-intensity resistance interventions compared to control. There were no other comparisons or overall meta-analyses that identified benefits for hip or knee muscle function or size. Conclusion: High-intensity resistance programs may increase hip abduction strength slightly when compared with a control group. No differences were identified in muscle function or size when comparing a high versus a low intensity group. It is unclear whether strength improvements identified in this review are associated with hypertrophy or other neuromuscular factors.
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Affiliation(s)
- Zachary P. J. Rostron
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Bendigo, VIC 3550, Australia; (R.A.G.); (A.Z.)
- Correspondence:
| | - Rodney A. Green
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Bendigo, VIC 3550, Australia; (R.A.G.); (A.Z.)
| | - Michael Kingsley
- Department of Exercise Sciences, Faculty of Science, University of Auckland, Auckland 1023, New Zealand;
- Holsworth Research Initiative, College of Science, Health and Engineering, La Trobe University, Bendigo, VIC 3550, Australia
| | - Anita Zacharias
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Bendigo, VIC 3550, Australia; (R.A.G.); (A.Z.)
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21
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Su Y, Huang L, Liu H, Chen S, Peng L. The Effect of Exercise Intervention on Disability and Kinesiophobia in a Retired Athlete With Old Patella Fracture: A Case Report. Front Psychol 2021; 12:744433. [PMID: 34867625 PMCID: PMC8633896 DOI: 10.3389/fpsyg.2021.744433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/13/2021] [Indexed: 11/15/2022] Open
Abstract
Objectives: To evaluate the effect of exercise intervention on disability, pain, and kinesiophobia in a retired athlete with old patella fracture. Methods: A 34-year-old retired football player with old patella fracture conducted the exercise intervention for 12 weeks, 1 h each time, three times a week. the retired football player completed the Lysholm Knee Score (LKS), Visual Analog Scale (VAS), and the Tampa Scale for Kinesiophobia (TSK) were measured at pre-intervention, mid-intervention, and post-intervention. Results: Based on the functional training perspective, the retired athlete was subjected to two stages of exercise intervention for a total of 12 weeks. The patient's LKS score increased from 76 to 95, and the pain level of various physical states was relieved. When walking, the VAS score was reduced from 3 to 1, and when running, the VAS score was reduced from 5 to 2. Jumping VAS score for actions was reduced from 6 to 3, and the VAS score for of daily life activities was reduced from 3 points to 2. The patient's TSK score from 50 to 37. Conclusion: A 12-week exercise intervention could improve knee joint function, relieve pain and relieve kinesiophobia.
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Affiliation(s)
- Yuqin Su
- College of Physical Education, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Li Huang
- College of Physical Education, Southwest University, Chongqing, China
| | - Haowei Liu
- College of Physical Education, Southwest University, Chongqing, China
- Key Lab of Physical Fitness Evaluation and Motor Function Monitoring, Southwest University, Chongqing, China
| | - Shifan Chen
- Electrical Engineering and Automation Department, College of Automation, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Li Peng
- College of Physical Education, Southwest University, Chongqing, China
- Key Lab of Physical Fitness Evaluation and Motor Function Monitoring, Southwest University, Chongqing, China
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22
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Tran V, De Martino E, Hides J, Cable G, Elliott JM, Hoggarth M, Zange J, Lindsay K, Debuse D, Winnard A, Beard D, Cook JA, Salomoni SE, Weber T, Scott J, Hodges PW, Caplan N. Gluteal Muscle Atrophy and Increased Intramuscular Lipid Concentration Are Not Mitigated by Daily Artificial Gravity Following 60-Day Head-Down Tilt Bed Rest. Front Physiol 2021; 12:745811. [PMID: 34867450 PMCID: PMC8634875 DOI: 10.3389/fphys.2021.745811] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/13/2021] [Indexed: 11/27/2022] Open
Abstract
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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Affiliation(s)
- Vienna Tran
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Enrico De Martino
- Aerospace Medicine and Rehabilitation Laboratory, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Julie Hides
- School of Health Sciences and Social Work, Griffith University, Brisbane, QLD, Australia
| | - Gordon Cable
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
- School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - James M. Elliott
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- Faculty of Medicine and Health, The Kolling Research Institute Sydney, Northern Sydney Local Health District, The University of Sydney, Sydney, NSW, Australia
| | - Mark Hoggarth
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL, United States
| | - Jochen Zange
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Kirsty Lindsay
- Aerospace Medicine and Rehabilitation Laboratory, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Dorothée Debuse
- Aerospace Medicine and Rehabilitation Laboratory, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Andrew Winnard
- Aerospace Medicine and Rehabilitation Laboratory, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - David Beard
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Jonathan A. Cook
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom
| | - Sauro E. Salomoni
- NHMRC Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Tobias Weber
- Space Medicine Team (HRE-OM), European Astronaut Centre, Cologne, Germany
- KBR GmbH, Cologne, Germany
| | - Jonathan Scott
- Space Medicine Team (HRE-OM), European Astronaut Centre, Cologne, Germany
- KBR GmbH, Cologne, Germany
| | - Paul W. Hodges
- NHMRC Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Nick Caplan
- Aerospace Medicine and Rehabilitation Laboratory, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
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Tsutsumi M, Nimura A, Akita K. Clinical anatomy of the musculoskeletal system in the hip region. Anat Sci Int 2021; 97:157-164. [PMID: 34686966 PMCID: PMC8817995 DOI: 10.1007/s12565-021-00638-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 10/15/2021] [Indexed: 01/09/2023]
Abstract
Although the hip joint is regarded as inherently stable, hip pain and injuries caused by traumatic/non-traumatic hip instability are relatively common in active individuals. A comprehensive understanding of hip anatomy may provide better insight into the relationships between hip stability and clinical problems. In this review, we present our recent findings on the hip morphological characteristics, especially focusing on the intramuscular tendon of the gluteus medius tendon and its insertion sites, hip capsular attachment on the anterosuperior region of the acetabular margin, and composition of the iliofemoral ligament. We further discussed the hip stabilization mechanism based on these findings. The characteristics of the gluteus medius tendon suggest that even a single muscle has multiple functional subunits within the muscle. In addition, the characteristics of the hip capsular attachment suggest that the width of the capsular attachment is wider than previously reported, and its wide area shows adaptive morphology to mechanical stress, such as bony impression and distribution of the fibrocartilage. The composition of the iliofemoral ligament and its relation to periarticular structures suggest that some ligaments should be defined based on the pericapsular structures, such as the joint capsule, tendon, and aponeurosis, and also have the ability to dynamically coordinate joint stability. These anatomical perspectives provide a better understanding of the hip stabilization mechanism, and a biomechanical study or an in vivo imaging study, considering these perspectives, is expected in the future.
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Affiliation(s)
- Masahiro Tsutsumi
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. .,Inclusive Medical Science Research Institute, Morinomiya University of Medical Sciences, Osaka, Japan.
| | - Akimoto Nimura
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiichi Akita
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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Lawrenson PR, Crossley KM, Hodges PW, Vicenzino BT, King MG, Heerey JJ, Semciw AI. Hip muscle activity in male football players with hip-related pain; a comparison with asymptomatic controls during walking. Phys Ther Sport 2021; 52:209-216. [PMID: 34607123 DOI: 10.1016/j.ptsp.2021.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 09/16/2021] [Accepted: 09/19/2021] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Compare muscle activity between male football players with and without hip-related pain. Morphological and intra-articular features of hip-related pain are proposed pre-cursors to hip osteoarthritis. Altered muscle activity is a feature of severe hip osteoarthritis, but it is not known whether differences exist earlier in the pathological spectrum. DESIGN Cross-sectional; SETTING: University laboratory; PARTICIPANTS: Forty-two male football players with hip-related pain; and 19 asymptomatic controls. MAIN OUTCOME MEASURES Hip muscle activity (Gluteus maximus, gluteus medius, tensor facia latae, adductor longus and rectus femoris) was recorded during walking using surface electromyography (EMG). RESULTS Men with hip-related pain had sustained rectus femoris activity prior to toe-off (47-51% of the gait cycle) (p = 0.01, ES = 0.51) unlike controls who had reduced activity. In men with severe hip-related pain, gluteus maximus EMG was sustained into mid-stance (12-20% of the gait cycle) (F = 6.15, p < 0.01) compared to controls. CONCLUSIONS Differences in rectus femoris and gluteus maximus activity were identified between male footballers with and without hip-related pain. The pattern of gluteus maximus EMG relative to peak, approaching mid-stance in severe hip-related pain, is consistent with observations in severe hip osteoarthritis. This supports the hypothesis that symptom severity may influence muscle activity across the spectrum of hip degeneration.
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Affiliation(s)
- Peter R Lawrenson
- The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia; University of Otago, Department of Anatomy, School of Biomedical Sciences, Dunedin, 9016, New Zealand; La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia.
| | - Kay M Crossley
- The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia; La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia.
| | - Paul W Hodges
- The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia.
| | - Bill T Vicenzino
- The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia.
| | - Matthew G King
- La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia.
| | - Joshua J Heerey
- La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia.
| | - Adam I Semciw
- The University of Queensland, School of Health & Rehabilitation Sciences, Brisbane, QLD, 4072, Australia; La Trobe Sport and Exercise Medicine Research Centre (LASEM), College of Science, Health and Engineering, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia; Northern Centre for Health, Education and Research, Northern Health, Melbourne, Vic, Australia.
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Coyle PC, Knox PJ, Pohlig RT, Pugliese JM, Sions JM, Hicks GE. Hip Range of Motion and Strength Predict 12-Month Physical Function Outcomes in Older Adults With Chronic Low Back Pain: The Delaware Spine Studies. ACR Open Rheumatol 2021; 3:850-859. [PMID: 34524738 PMCID: PMC8672177 DOI: 10.1002/acr2.11342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/19/2021] [Indexed: 11/13/2022] Open
Abstract
Objective The objective of this study was to investigate whether poor hip range of motion (ROM) and strength predict 12‐month physical function decline among older adults with chronic low back pain (LBP) and whether hip osteoarthritis modifies those relationships. Methods At baseline, passive ROM and strength measurements were taken for hip flexion, extension, abduction, adduction, internal rotation, and external rotation; ultrasound images and self‐reported symptoms were used to evaluate hip osteoarthritis presence (eg, osteophytes and hip pain). At baseline and 12 months, performance‐based (repeated chair rise, self‐selected gait speed, 6‐minute walk test [6MWT]) and self‐reported (Quebec LBP Disability Questionnaire, Late‐Life Function & Disability Instrument [LLFDI] basic and advanced lower extremity scales) physical function outcomes were assessed. Regression models were constructed for each outcome predicted by baseline hip ROM and strength measures, with adjustment for potential covariates. To avoid collinearity, hip ROM and strength measures with the strongest unadjusted correlations were included in final models. The hip osteoarthritis presence by hip ROM/strength interaction was also explored. Results Hip abduction strength predicted repeated chair rise (β = −0.297, P < 0.001), gait speed (β = 0.160, P = 0.003), 6MWT (β = 0.159, P ≤ 0.001), Quebec LBP Disability Questionnaire (β = −0.152, P = 0.003), and LLFDI basic lower extremity scale (β = 0.171, P = 0.005) outcomes. Regarding hip ROM, extension predicted repeated chair rise (β = −0.110, P = 0.043) and LLFDI advanced lower extremity scale (β = 0.090, P = 0.007) outcomes, external rotation predicted gait speed (β = 0.122, P = 0.004) outcomes, and abduction predicted LLFDI basic lower extremity scale (β = 0.114, P = 0.026) outcomes. The hip osteoarthritis interaction was not significant for any model. Conclusion Reduced hip strength and ROM predict physical function decline; hip osteoarthritis presence may not modify these relationships.
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Carey HD, Liss DJ, Allen JL. Young adults recruit similar motor modules across walking, turning, and chair transfers. Physiol Rep 2021; 9:e15050. [PMID: 34558203 PMCID: PMC8461213 DOI: 10.14814/phy2.15050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 11/24/2022] Open
Abstract
Moving about in the world during daily life requires executing and successfully shifting between a variety of functional tasks, such as rising from a chair or bed, walking, turning, and navigating stairs. Moreover, moving about during daily life requires not only navigating between different functional tasks, but also performing these tasks in the presence of mental distractions. However, little is known about underlying neuromuscular control for executing and shifting between these different tasks. In this study, we investigated muscle coordination across walking, turning, and chair transfers by applying motor module (a.k.a. muscle synergy) analysis to the Timed-Up-and-Go (TUG) test with and without a secondary cognitive dual task. We found that healthy young adults recruit a small set of common motor modules across the subtasks of the TUG test and that their composition is robust to cognitive distraction. Instead, cognitive distraction impacted motor module activation timings such that they became more consistent. This work is the first to demonstrate motor module generalization across multiple tasks that are both functionally different and crucial for healthy mobility. Overall, our results suggest that the central nervous system may draw from a "library" of modular control strategies to navigate the variety of movements and cognitive demands required of daily life.
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Affiliation(s)
- Hannah D. Carey
- Department of Chemical and Biomedical EngineeringWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Daniel J. Liss
- Department of Chemical and Biomedical EngineeringWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Jessica L. Allen
- Department of Chemical and Biomedical EngineeringWest Virginia UniversityMorgantownWest VirginiaUSA
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The immediate effect of foot orthoses on gluteal and lower limb muscle activity during overground walking in healthy young adults. Gait Posture 2021; 89:102-108. [PMID: 34265525 DOI: 10.1016/j.gaitpost.2021.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 06/21/2021] [Accepted: 07/04/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Although foot orthoses are often used in the management of lower limb musculoskeletal conditions, their effects on muscle activation is unclear, especially in more proximal segments of the lower limb. RESEARCH QUESTION Primary aim: Is there an immediate effect of foot orthoses on gluteal muscle activity during overground walking in healthy young adults? Secondary aim: Is there an immediate effect of foot orthoses on the activity of hamstring, quadriceps and calf muscles? METHODS In eighteen healthy young adults, muscle activity was recorded using fine wire electrodes for gluteus minimus (GMin; anterior, posterior) and gluteus medius (GMed; anterior, middle, posterior); and surface electrodes for gluteus maximus (GMax), hamstring, quadriceps and calf muscles. Participants completed six walking trials for two conditions; shoe and shoe with prefabricated foot orthoses. Muscle activity was normalised to the peak activity of the shoe condition and analysed using one-dimensional statistical non-parametric mapping to identify differences across the gait cycle. RESULTS Activity of GMed (anterior, middle, posterior) and GMin (posterior) was reduced in early stance phase when the orthosis was worn in the shoe (p < 0.05). GMin (anterior) activity was significantly reduced during swing (p < 0.05). Muscle activity was also significantly reduced during the orthoses condition for the lateral hamstrings and calf muscles (p < 0.05). SIGNIFICANCE Using foot orthoses may provide a strategy to reduce demand on GMin, GMed, lateral hamstring and calf muscles while walking.
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Lehecka BJ, Stoffregen S, May A, Thomas J, Mettling A, Hoover J, Hafenstine R, Hakansson NA. Gluteal Muscle Activation During Common Yoga Poses. Int J Sports Phys Ther 2021; 16:662-670. [PMID: 34123518 PMCID: PMC8168988 DOI: 10.26603/001c.22499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/29/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Approximately 24% of physical therapists report regularly using yoga to strengthen major muscle groups. Although clinicians and athletes often use yoga as a form of strength training, little is known about the activation of specific muscle groups during yoga poses, including the gluteus maximus and medius. HYPOTHESIS/PURPOSE The purpose of this study was to measure gluteus maximimus and gluteus medius activation via electromyography (EMG) during five common yoga poses. A secondary purpose of the current study was to examine differences in muscle activation between sexes and experience levels. STUDY DESIGN Cross-Sectional. METHODS Thirty-one healthy males and females aged 18-35 years were tested during five yoga poses performed in a randomized order. Surface EMG electrodes were placed on subjects' right gluteus maximus and gluteus medius. Subjects performed the poses on both sides following a maximal voluntary isometric contraction (MVIC) test for each muscle. All yoga pose EMG data were normalized to the corresponding muscle MVIC data. RESULTS Highest gluteus maximus activation occurred during Half Moon Pose on the lifted/back leg (63.3% MVIC), followed by the stance/front leg during Half Moon Pose (61.7%), then the lifted/back leg during Warrior Three Pose (46.1%). Highest gluteus medius activation occurred during Half Moon Pose on the lifted/back leg (41.9%), followed by the lifted/back leg during the Warrior Three Pose (41.6%). A significant difference was found in %MVIC of gluteus medius activity between male and female subjects (p = 0.026), and between experienced and inexperienced subjects (p = 0.050), indicating higher activation among males and inexperienced subjects, respectively. CONCLUSION Half Moon Pose and Warrior Three Pose elicited the highest activation for both the gluteus maximus and the gluteus medius. Higher gluteus medius activation was seen in males and inexperienced subjects compared to their female and experienced counterparts. LEVEL OF EVIDENCE 3.
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Anders C, Sander K, Layher F, Patenge S, Kinne RW. Temporal and spatial relationship between gluteal muscle Surface EMG activity and the vertical component of the ground reaction force during walking. PLoS One 2021; 16:e0251758. [PMID: 34038412 PMCID: PMC8153502 DOI: 10.1371/journal.pone.0251758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/30/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Optimized temporal and spatial activation of the gluteal intermuscular functional unit is essential for steady gait and minimized joint loading. RESEARCH QUESTION To analyze the temporal relationship between spatially resolved surface EMG (SEMG) of the gluteal region and the corresponding ground reaction force (GRF). METHODS Healthy adults (29♀; 25♂; age 62.6±7.0 years) walked at their self-selected slow, normal, and fast walking speeds on a 10 m walkway (ten trials/speed). Bilateral paired eight-electrode strips were horizontally aligned at mid-distance of the vertical line between greater trochanter and iliac crest. Concerning the ventral to dorsal direction, the center of each strip was placed on this vertical line. Initially, these signals were monopolarly sampled, but eight vertically oriented bipolar channels covering the whole gluteal region from ventral to dorsal (P1 to P8) were subsequently calculated by subtracting the signals of the corresponding electrodes of each electrode strip for both sides of the body. Three vertical bipolar channels represented the tensor fasciae latae (TFL; P2), gluteus medius (Gmed, SENIAM position; average of P4 and P5), and gluteus maximus muscles (Gmax; P7). To determine the interval between SEMG and corresponding GRF, the time delay (TD) between the respective first amplitude peaks (F1) in SEMG and vertical GRF curves was calculated. RESULTS Throughout the grand averaged SEMG curves, the absolute amplitudes significantly differed among the three walking speeds at all electrode positions, with the amplitude of the F1 peak significantly increasing with increasing speed. In addition, when normalized to slow, the relative SEMG amplitude differences at the individual electrode positions showed an impressively homogeneous pattern. In both vertical GRF and all electrode SEMGs, the F1 peak occurred significantly earlier with increasing speed. Also, the TD between SEMG and vertical GRF F1 peaks significantly decreased with increasing speed. Concerning spatial activation, the TD between the respective F1 peaks in the SEMG and vertical GRF was significantly shorter for the ventral TFL position than the dorsal Gmed and Gmax positions, showing that the SEMG F1 peak during this initial phase of the gait cycle occurred earlier in the dorsal positions, and thus implying that the occurrence of the SEMG F1 peak proceeded from dorsal to ventral. SIGNIFICANCE Tightly regulated spatial and temporal activation of the gluteal intermuscular functional unit, which includes both speed- and position-dependent mechanisms, seems to be an essential requirement for a functionally optimized, steady gait.
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Affiliation(s)
- Christoph Anders
- Division of Motor Research, Pathophysiology and Biomechanics; Experimental Trauma Surgery; Department for Hand, Reconstructive, and Trauma Surgery; Jena University Hospital; Friedrich Schiller University Jena, Jena, Germany
- * E-mail:
| | - Klaus Sander
- Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Deutsches Zentrum für Orthopädie; Friedrich Schiller University Jena, Jena, Germany
| | - Frank Layher
- Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Deutsches Zentrum für Orthopädie; Friedrich Schiller University Jena, Jena, Germany
| | - Steffen Patenge
- Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Deutsches Zentrum für Orthopädie; Friedrich Schiller University Jena, Jena, Germany
| | - Raimund W. Kinne
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Deutsches Zentrum für Orthopädie; Friedrich Schiller University Jena, Jena, Germany
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Evaluation of femoral anteversion, hip rotation, and lateral patellar tilt after total hip arthroplasty using a changeable neck system. J Artif Organs 2021; 24:492-497. [PMID: 33899127 DOI: 10.1007/s10047-021-01269-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022]
Abstract
In patients with secondary osteoarthritis due to acetabular dysplasia, femoral anteversion has many variations. A changeable neck system is one useful option to adjust the femoral anteversion. Retroverted necks can effectively adjust anatomical anteversion (AA), femoral rotational angle (FRA), and functional anteversion (FA); however, effectiveness of anteverted necks for these adjustments has not been investigated. Moreover, although the lateral patellar tilt after total hip arthroplasty (THA) has been reported to externally rotate, the influence on lateral patellar tilt using a changeable neck system remains unknown. To clarify the effectiveness of anteverted necks in THA, 96 consecutive patients (111 hips) who underwent THA using anatomical short stem with a changeable neck system were retrospectively investigated using pre- and post-operative computed tomography. Patients were divided into the straight (ST) group using straight and 4-mm-high-offset neck (N = 34) and the anteverted (AV) group using 15°-anteverted and 15°-anteverted/3-mm-high-offset neck (N = 34) after age, body mass index, and surgical approach were matched using propensity scores. AA did not change in the ST group, while it increased by 14.0° in the AV group. FRA decreased after surgery in both groups. FA decreased after surgery in the ST group, while it did not change in the AV group. Lateral patella tilt did not significantly change in both groups between pre- and post-operative position. In conclusion, with a changeable neck system, straight and anteverted necks can adjust AA to achieve pre-operative planning while not influencing lateral patellar tilt.
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Kivle K, Lindland ES, Mjaaland KE, Svenningsen S, Nordsletten L. Gluteal atrophy and fatty infiltration in end-stage osteoarthritis of the hip: a case-control study. Bone Jt Open 2021; 2:40-47. [PMID: 33537675 PMCID: PMC7842157 DOI: 10.1302/2633-1462.21.bjo-2020-0179.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Aims The gluteus minimus (GMin) and gluteus medius (GMed) have unique structural and functional segments that may be affected to varying degrees, by end-stage osteoarthritis (OA) and normal ageing. We used data from patients with end-stage OA and matched healthy controls to 1) quantify the atrophy of the GMin and GMed in the two groups and 2) describe the distinct patterns of the fatty infiltration in the different segments of the GMin and GMed in the two groups. Methods A total of 39 patients with end-stage OA and 12 age- and sex frequency-matched healthy controls were prospectively enrolled in the study. Fatty infiltration within the different segments of the GMin and the GMed was assessed on MRI according to the semiquantitative classification system of Goutallier and normalized cross-sectional areas were measured. Results The GMin was smaller in the OA-group (p < 0.001) compared to the control group, but there was no group difference in the size of the GMed (p = 0.101). Higher levels of fatty infiltration were identified in the anterior segment of the GMin (p = 0.006) and the anterior (p = 0.006) and middle (p = 0.047) segments of the GMed in the OA group. All subjects in the control group had fatty infiltration of the anterior segment of the GMin, but all except one had no fatty infiltration in the entire GMed. Conclusion End-stage OA was associated with significant atrophy of the GMin and higher levels of fatty infiltration, particularly in the anterior segments of the GMin and GMed. Minor fatty infiltration of the anterior segment of GMin appears to be a normal part of ageing. Our study has demonstrated different patterns of atrophy and fatty infiltration between patients with end-stage OA and healthy matched peers. Cite this article: Bone Jt Open 2021;2(1):40–47.
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Affiliation(s)
- Kjetil Kivle
- Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Knut Erik Mjaaland
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Orthopaedics, Sorlandet Hospital, Arendal, Norway
| | | | - Lars Nordsletten
- Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Li J, Marra MA, Verdonschot N, Lu Y. A three-dimensional finite-element model of gluteus medius muscle incorporating inverse-dynamics-based optimization for simulation of non-uniform muscle contraction. Med Eng Phys 2021; 87:38-44. [DOI: 10.1016/j.medengphy.2020.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 10/29/2020] [Accepted: 11/18/2020] [Indexed: 01/17/2023]
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A SYSTEMATIC REVIEW AND META-ANALYSIS OF COMMON THERAPEUTIC EXERCISES THAT GENERATE HIGHEST MUSCLE ACTIVITY IN THE GLUTEUS MEDIUS AND GLUTEUS MINIMUS SEGMENTS. Int J Sports Phys Ther 2020; 15:856-881. [PMID: 33344003 DOI: 10.26603/ijspt20200856] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background The gluteus medius (GMed) and gluteus minimus (GMin) muscle segments demonstrate different responses to pathology and ageing, hence it is important in rehabilitation that prescribed therapeutic exercises can effectively target the individual segments with adequate exercise intensity for strengthening. Purpose The purpose of this systematic review was to evaluate whether common therapeutic exercises generate at least high ( > 40% maximum voluntary isometric contraction (MVIC)) electromyographic (EMG) activity in the GMed (anterior, middle and posterior) and GMin (anterior and posterior) segments. Methods Seven databases (MEDLINE, EMBASE, CINAHL, AusSPORT, PEDro, SPORTdiscus and Cochrane Library) were searched from inception to May 2018 for terms relating to gluteal muscle, exercise, and EMG. The search yielded 6918 records with 56 suitable for inclusion. Quality assessment, data extraction and data analysis were then undertaken with exercise data pooled into a meta-analysis where two or more studies were available for an exercise and muscle segment. Results For the GMed, different variations of the hip hitch/ pelvic drop exercise generated at least high activity in all segments. The dip test, and isometric standing hip abduction are other options to target the anterior GMed segment, while isometric standing hip abduction can be used for the posterior GMed segment. For the middle GMed segment, the single leg bridge; side-lying hip abduction with hip internal rotation; lateral step-up; standing hip abduction on stance or swing leg with added resistance; and resisted side-step were the best options for generating at least high activity. Standing isometric hip abduction and different variations of the hip hitch/ pelvic drop exercise generated at least high activity in all GMin segments, while side-lying hip abduction, the dip test, single leg bridge and single leg squat can also be used for targeting the posterior GMin segment. Conclusion The findings from this review provide the clinician with confidence in exercise prescription for targeting individual GMed and GMin segments for potential strengthening following injury or ageing. Level of Evidence Level 1. What is known about the subject Previous reviews on GMed exercises have been based on single electrode, surface EMG measures at middle GMed segment. It is not known whether these exercises effectively target the other segments of GMed or the GMin at a sufficient intensity for strengthening. What this study adds to existing knowledge This review provides the clinician with confidence in exercise prescription of common therapeutic exercises to effectively target individual GMed and GMin segments for potential strengthening.
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Zhu MF, Smith B, Krishna S, Musson DS, Riordan PR, McGlashan SR, Cornish J, Munro JT. The pathological features of hip abductor tendon tears - a cadaveric study. BMC Musculoskelet Disord 2020; 21:778. [PMID: 33243210 PMCID: PMC7690166 DOI: 10.1186/s12891-020-03784-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 11/10/2020] [Indexed: 01/06/2023] Open
Abstract
Background The hip abductors are crucial in maintaining pelvic stability. Tears in these tendons are common and often debilitating. There is uncertainty regarding both the histological and macroscopic features of hip abductor tears. This study aims to clarify both the macroscopic and microscopic features of the tendon and enthesis in hip abductor tendon tears. Methods Thirty-six cadavers with an average age of 81 were dissected, and the hip abductor mechanisms removed en-bloc. The presence, location and size of the tears were recorded and analysed. The samples were processed into histological blocks and viewed using both transmitted and polarised light. Tendon histology was graded using the modified Movin’s score in three sections (deep, middle and superficial layers) and the enthesis graded separately using 5-point criteria. Analysis of variance was used to confirm histological features associated with tears. Results Tears were found in 24 of 36 samples (67%). The most common finding was an isolated tear in the gluteus minimus (46%), followed by concurrent gluteus medius and gluteus minimus tears (33%). Histology revealed significantly more degeneration in both the tendon (p = 0.0005) and enthesis (p = 0.0011) when tears were present. Furthermore, these changes were concentrated in the deeper layers of the tendon (p = 0.0002) and enthesis (p = 0.003). Conclusion This study demonstrated degeneration as the primary pathology underlying hip abductor tendon tears. Degenerative changes occur in both the tendon and enthesis, with the deeper layers predominantly affected. These findings are important for guiding surgical repair techniques and to aid the development of novel materials and biologics. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-020-03784-3.
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Affiliation(s)
- Mark F Zhu
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand. .,Department of Orthopaedic Surgery, Auckland City Hospital, 2 Park Road, Grafton, New Zealand.
| | - Brittany Smith
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand
| | - Sanjeev Krishna
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand
| | - David S Musson
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand
| | - Peter R Riordan
- Department of Anatomy and Medical Imaging, University of Auckland, 85 Park Road, Grafton, New Zealand
| | - Sue R McGlashan
- Department of Anatomy and Medical Imaging, University of Auckland, 85 Park Road, Grafton, New Zealand
| | - Jillian Cornish
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand
| | - Jacob T Munro
- Bone and Joint Laboratory, University of Auckland, 85 Park Road, Grafton, 1023, New Zealand.,Department of Orthopaedic Surgery, Auckland City Hospital, 2 Park Road, Grafton, New Zealand
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Effect of Functional Electrical Stimulation of the Gluteus Medius during Gait in Patients following a Stroke. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8659845. [PMID: 35721669 PMCID: PMC9201370 DOI: 10.1155/2020/8659845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/12/2020] [Accepted: 10/28/2020] [Indexed: 11/25/2022]
Abstract
Many stroke patients rely on cane or ankle-foot orthosis during gait rehabilitation. The purpose of this study was to investigate the immediate effect of functional electrical stimulation (FES) to the gluteus medius (GMed) and tibialis anterior (TA) on gait performance in stroke patients, including those who needed assistive devices. Fourteen stroke patients were enrolled in this study (mean poststroke duration: 194.9 ± 189.6 d; mean age: 72.8 ± 10.7 y). Participants walked 14 m at a comfortable velocity with and without FES to the GMed and TA. After an adaptation period, lower-limb motion was measured using magnetic inertial measurement units attached to the pelvis and the lower limb of the affected side. Motion range of angle of the affected thigh and shank segments in the sagittal plane, motion range of the affected hip and knee extension-flexion angle, step time, and stride time were calculated from inertial measurement units during the middle ten walking strides. Gait velocity, cadence, and stride length were also calculated. These gait indicators, both with and without FES, were compared. Gait velocity was significantly faster with FES (p = 0.035). Similarly, stride length and motion range of the shank of the affected side were significantly greater with FES (stride length: p = 0.018; motion range of the shank: p = 0.026). Meanwhile, cadence showed no significant difference (p = 0.238) in gait with or without FES. Similarly, range of motion of the affected hip joint, knee joint, and thigh did not differ significantly depending on FES condition (p = 0.115‐0.529). FES to the GMed and TA during gait produced an improvement in gait velocity, stride length, and motion range of the shank. Our results will allow therapists to use FES on stroke patients with varying conditions.
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Araújo de Castro L, Morita AA, Sepúlveda-Loyola W, da Silva RA, Pitta F, Krueger E, Probst VS. Are there differences in muscular activation to maintain balance between individuals with chronic obstructive pulmonary disease and controls? Respir Med 2020; 173:106016. [PMID: 33190741 DOI: 10.1016/j.rmed.2020.106016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/04/2020] [Accepted: 05/08/2020] [Indexed: 11/15/2022]
Abstract
BACKGROUND The mechanisms underlying impaired balance in chronic obstructive pulmonary disease (COPD) are poorly understood, which makes it difficult to choose the best therapeutic approaches. Therefore, this study aimed to investigate patterns of muscular activation to maintain balance and its determinants in this population. METHODS Thirty-three subjects with COPD and 33 controls were assessed by a force platform in four tasks: standing with eyes opened (FHEO) and closed (FHEC); standing on unstable surface (SUS) and one-legged stance (OLS). Electromyographic activity of lower limb, trunk and neck muscles was concomitantly recorded. To asses functional balance, Brief-balance evaluation systems and timed up & go (TUG) tests were applied. Lung function, exercise capacity and muscle force were also assessed. RESULTS Subjects with COPD presented worse balance and higher scalene activation than controls in OLS (mean difference 23.0 [95%CI 1.7-44.3] %Δ μVRMS; P = 0.034), besides presenting also higher activation of gluteus medius during FHEC task (mean difference 1.5 [95%CI 0.2-2.8] %Δ μVRMS; P = 0.023) and taking longer to complete the TUG (mean difference 0.6 [95%CI 0.1-1.2] seconds; P = 0.042). Exercise capacity and peripheral muscle force were determinants of functional balance (r2 = 0.505), whereas age (OR = 1.24; 95%CI 1.02-1.52) and total lung capacity (OR = 2.42; 95%CI 1.05-5.56) were determinants of static balance. CONCLUSION Individuals with COPD have worse static and functional balance in comparison with controls, besides presenting higher activation of scalene and gluteus medius during static balance tasks. Exercise capacity and peripheral muscle force emerged as determinants of functional balance, whereas age and lung hyperinflation contributed to poor static balance.
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Affiliation(s)
- Larissa Araújo de Castro
- Center of Research and Post-Graduation in Health Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil; Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil; Laboratory of Research in Respiratory Physiotherapy, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Londrina, Brazil
| | - Andrea Akemi Morita
- Center of Research and Post-Graduation in Health Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil; Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil; Laboratory of Research in Respiratory Physiotherapy, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Londrina, Brazil
| | - Walter Sepúlveda-Loyola
- Center of Research and Post-Graduation in Health Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil; Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil
| | - Rubens Alexandre da Silva
- Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil; Département des Sciences de la Santé, Programme de Physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Centre intersectoriel en santé durable, Lab BioNR et Cupht - UQAC, Saguenay, Québec, Canada
| | - Fabio Pitta
- Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil; Laboratory of Research in Respiratory Physiotherapy, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Londrina, Brazil
| | - Eddy Krueger
- Center of Research and Post-Graduation in Health Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil; Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil
| | - Vanessa Suziane Probst
- Center of Research and Post-Graduation in Health Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil; Masters and Doctoral Program in Rehabilitation Sciences, Physiotherapy Department, Universidade Estadual de Londrina (UEL), Universidade Norte do Paraná (UNOPAR), Londrina, Brazil.
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McCarney L, Andrews A, Henry P, Fazalbhoy A, Selva Raj I, Lythgo N, Kendall JC. Determining Trendelenburg test validity and reliability using 3-dimensional motion analysis and muscle dynamometry. Chiropr Man Therap 2020; 28:53. [PMID: 33076947 PMCID: PMC7570029 DOI: 10.1186/s12998-020-00344-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 10/07/2020] [Indexed: 11/17/2022] Open
Abstract
Background The hip abductor muscle group stabilises the pelvis during gait to prevent excessive pelvic drop. Hip abductor weakness has been linked to musculoskeletal conditions such as chronic low-back pain. As such, it is important that practitioners can correctly diagnose hip abductor weakness in a clinical setting. Although the Trendelenburg test is commonly used by practitioners, the validity of this test to assess hip abductor weakness in the absence of musculoskeletal injury remains questionable. The aim of this study was to determine the validity of the Trendelenburg test, as observed by a practitioner, to assess frontal plane pelvic motion and hip abductor strength in a population without intra-articular hip disorders. Methods This study was performed between June 14th and October 16th 2019. Eighteen participants were recruited for this study. Peak normalised isometric and isokinetic hip abductor torque were measured bilaterally (n = 36) using the Biodex System 4 isokinetic dynamometer. Each participant performed the Trendelenburg test bilaterally (n = 36) while a graduate year chiropractic practitioner assessed for a “positive” or “negative” sign. The test was simultaneously recorded using Vicon 3-Dimensional motion capture to measure frontal plane pelvic motion and elevation. Correlation analyses were performed between the measures of peak hip abductor torque and pelvic motion to determine if any relationship existed. Agreement between the practitioner and 3-Dimensional analysis was calculated using the kappa (κ) statistic. Results Weak, non-significant correlations were found between hip abductor strength and pelvic motion before outlier removal. Significant (p < 0.05) yet weak correlations were found after outlier removal, except for isometric hip abductor strength. Weak agreement was found between the chiropractic practitioner and 3-Dimesnional analysis for the Trendelenburg test assessment (κ = 0.22–0.25). Conclusions This study found no significant relationship between normalised peak isometric and isokinetic hip abductor torque and frontal plane pelvic motion during the Trendelenburg test in a healthy young adult population. There was also poor agreement between the practitioner and pelvic motion assessments. Caution should be used when using this test, in the absence of intra-articular hip pathology, to assesses hip abductor weakness. Before any definitive conclusion can be made, studies with a larger sample size should be performed.
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Affiliation(s)
- Luke McCarney
- Osteopathy, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Alexander Andrews
- Chiropractic, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Phoebe Henry
- Chiropractic, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Azharuddin Fazalbhoy
- Osteopathy, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Isaac Selva Raj
- Exercise and Sports Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Noel Lythgo
- Exercise and Sports Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Julie C Kendall
- Chiropractic, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia.
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Abstract
Hip abductor tendon tear is a difficult problem to manage. The hip abductor mechanism is made up of the gluteus medius and minimus muscles, both of which contribute to stabilising the pelvis through the gait cycle. Tears of these tendons are likely due to iatrogenic injury during arthroplasty and chronic degenerative tendinopathy. Ultrasound and magnetic resonance imaging have provided limited clues regarding the pattern of disease and further work is required to clarify both the macro and microscopic pattern of disease. While surgery has been attempted over the last 2 decades, the outcomes are variable and the lack of high-quality studies have limited the uptake of surgical repair. Hip abductor tendon tears share many features with rotator cuff tears, hence, innovations in surgical techniques, materials and biologics may apply to both pathologies.
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Affiliation(s)
- Mark F Zhu
- The University of Auckland, Auckland, New Zealand.,Auckland City Hospital, Auckland, New Zealand
| | | | | | - Simon W Young
- The University of Auckland, Auckland, New Zealand.,North Shore Hospital, Auckland, New Zealand
| | - Jacob T Munro
- The University of Auckland, Auckland, New Zealand.,Auckland City Hospital, Auckland, New Zealand
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Patellofemoral Pain Syndrome and Pain Severity Is Associated With Asymmetry of Gluteus Medius Muscle Activation Measured Via Ultrasound. Am J Phys Med Rehabil 2020; 99:595-601. [DOI: 10.1097/phm.0000000000001367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nunes GS, Pizzari T, Neate R, Barton CJ, Semciw A. Gluteal muscle activity during running in asymptomatic people. Gait Posture 2020; 80:268-273. [PMID: 32563058 DOI: 10.1016/j.gaitpost.2020.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 05/17/2020] [Accepted: 06/03/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Hip abductor muscle function is associated with running-related injuries. Previous electromyography (EMG) studies that reporting gluteal muscle activity when running have failed to account for the multiple segments of the gluteals, and have used surface electrodes, which may be contaminated by cross-talk of surrounding muscles. RESEARCH QUESTION This study aimed to: (i) develop EMG profiles of gluteus medius (GMed - anterior, middle and posterior) and gluteus minimus (GMin - anterior and posterior) segments during running; (ii) compare the activation patterns of each gluteal segment between running and walking; and (iii) compare surface EMG signals of running and walking to fine wire EMG signals of middle GMed. METHODS Ten physically active and asymptomatic people participated. Gluteal segment activation was assessed during running and walking over 10 m. Muscle activation was assessed using bipolar fine wire intramuscular EMG electrodes and GMed activation was also assessed using surface EMG. RESULTS During running, all gluteal segments presented peak amplitude during the stance phase and anterior GMin presented additional second peak amplitude during the swing phase. All gluteal segments evaluated demonstrated consistently higher amplitudes during the stance and swing phases of running compared to walking. The mean amplitude assessed using surface EMG was 32-87% higher compared to fine wire during both phases for running and walking. SIGNIFICANCE Greater activation of GMed segments during the stance phase and the increased anterior GMin activity during the swing phase indicate a potentially important role for pelvis and hip stabilization, respectively, which should be considered during development of targeted rehabilitation for running populations. The overestimated activation using surface electrodes highlights a limitation of using surface EMG during running and walking.
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Affiliation(s)
- Guilherme S Nunes
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Australia
| | - Tania Pizzari
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Australia; Department of Physiotherapy, Podiatry and Prosthetics and Orthotics, La Trobe University, Australia
| | - Rachel Neate
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Australia
| | - Christian J Barton
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Australia; Department of Surgery, St Vincent's Hospital, University of Melbourne, Australia
| | - Adam Semciw
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Australia; Department of Physiotherapy, Podiatry and Prosthetics and Orthotics, La Trobe University, Australia; Northern Centre for Health, Education and Research, Northern Health, Victoria, Australia.
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Zacharias A, Pizzari T, Semciw AI, English DJ, Kapakoulakis T, Green RA. Gluteus medius and minimus activity during stepping tasks: Comparisons between people with hip osteoarthritis and matched control participants. Gait Posture 2020; 80:339-346. [PMID: 32603886 DOI: 10.1016/j.gaitpost.2020.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/02/2020] [Accepted: 06/09/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Altered gluteus minimus (GMin) activity has been identified in people with hip osteoarthritis (OA) during gait with some evidence of altered gluteus medius (GMed) activity in patients with advanced OA. It is not known whether these muscles also exhibit altered activity during other functional tasks. RESEARCH QUESTION Does gluteal muscle activity during stepping tasks differ between people with hip OA and healthy older adults? METHODS Participants included 20 people with unilateral hip OA and 20 age-and sex-matched controls. Muscle activity in the three segments within GMed and two segments of GMin were examined using intramuscular electromyography during step-up, step-down and side-step tasks. RESULTS Participants in the OA group demonstrated reduced muscle activity early in the step-up task and a later time to peak activity in most muscle segments. Greater activity was identified in anterior GMin in people with hip OA during the side-step task. A delay in time to peak activity was identified in most muscle segments in people with OA during the side-step task. SIGNIFICANCE For participants with OA, reduced activity in most muscle segments and increased time spent in double limb stance during the step-up task could reflect the decreased strength and pain associated with single limb stance on the affected limb. This study provides further evidence of altered function of the deep gluteal muscles in people with hip OA and highlights the importance of addressing these muscles in rehabilitation.
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Affiliation(s)
- Anita Zacharias
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Sport, Exercise and Rehabilitation Research Focus Area, La Trobe University, Victoria, Australia.
| | - Tania Pizzari
- Sport, Exercise and Rehabilitation Research Focus Area, La Trobe University, Victoria, Australia; La Trobe University Sports and Exercise Medicine Research Centre, Victoria, Australia
| | - Adam I Semciw
- Sport, Exercise and Rehabilitation Research Focus Area, La Trobe University, Victoria, Australia; La Trobe University Sports and Exercise Medicine Research Centre, Victoria, Australia
| | - Daniel J English
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Fusion Physiotherapy, Bendigo, Victoria, Australia
| | | | - Rodney A Green
- Department of Pharmacy and Biomedical Sciences, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Sport, Exercise and Rehabilitation Research Focus Area, La Trobe University, Victoria, Australia
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Mendis MD, Wilson SJ, Hayes DA, Hides JA. Hip muscle atrophy in patients with acetabular labral joint pathology. Clin Anat 2020; 33:538-544. [DOI: 10.1002/ca.23429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/30/2019] [Indexed: 12/15/2022]
Affiliation(s)
- M. Dilani Mendis
- School of Allied Health SciencesGriffith University Brisbane Queensland Australia
- Physiotherapy DepartmentMater Health Services South Brisbane Queensland Australia
| | - Stephen J. Wilson
- School of Information Technology and Electrical EngineeringThe University of Queensland Brisbane Queensland Australia
| | - David A. Hayes
- Brisbane Orthopaedic & Sports Medicine Centre Brisbane Queensland Australia
| | - Julie A. Hides
- School of Allied Health SciencesGriffith University Brisbane Queensland Australia
- Mater Back Stability Research ClinicMater Health Services South Brisbane Queensland Australia
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Moore D, Semciw AI, Wisbey-Roth T, Pizzari T. Adding hip rotation to therapeutic exercises can enhance gluteus medius and gluteus minimus segmental activity levels – An electromyography study. Phys Ther Sport 2020; 43:157-165. [DOI: 10.1016/j.ptsp.2020.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 01/12/2023]
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Crow J, Semciw A, Couch J, Pizzari T. Does a recent hamstring muscle injury affect the timing of muscle activation during high speed overground running in professional Australian Football players? Phys Ther Sport 2020; 43:188-194. [PMID: 32208357 DOI: 10.1016/j.ptsp.2020.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To investigate if the temporal characteristics of hamstring and gluteal muscle activation are altered during high speed overground running in professional Australian Football players following hamstring muscle injury. DESIGN Cohort study. SETTING Field-based testing. PARTICIPANTS Elite professional Australian Football players who had sustained a hamstring muscle injury in the six months prior to testing (n = 7) and a group of players from the same club who had no history of hamstring muscle injury (n = 8). MAIN OUTCOME MEASURES Muscle onset timing, muscle offset timing and muscle onset duration of the medial hamstrings, biceps femoris and gluteus maximus muscles during high-speed running using electromyographic data. RESULTS No significant differences in any of the temporal aspects of muscle activation were found between groups for any of the muscles tested (p > 0.05). CONCLUSIONS Persistent alterations to the timing of muscle activation following hamstring muscle injury that have been reported in recreational athletes were not observed during high speed running in professional athletes who have completed comprehensive rehabilitation programs.
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Affiliation(s)
- Justin Crow
- La Trobe University Sport and Exercise Medicine Research Centre, La Trobe University, Bundoora, Australia; Paralympics Australia, Melbourne, Australia.
| | - Adam Semciw
- La Trobe University Sport and Exercise Medicine Research Centre, La Trobe University, Bundoora, Australia
| | - Jamon Couch
- Mill Park Physiotherapy Centre, Melbourne, Australia
| | - Tania Pizzari
- La Trobe University Sport and Exercise Medicine Research Centre, La Trobe University, Bundoora, Australia; Mill Park Physiotherapy Centre, Melbourne, Australia
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Effect of neuromuscular training augmented with knee valgus control instructions on lower limb biomechanics of male runners. Phys Ther Sport 2020; 43:89-99. [PMID: 32135451 DOI: 10.1016/j.ptsp.2020.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To examine if combining neuromuscular training (NMT) with knee valgus control instructions (VCIs) can affect lower limb biomechanics and injury incidence in male novice runners and assess over 1-year follow-up. DESIGN Controlled laboratory Study. SETTING University research laboratory. PARTICIPANTS 60 male novice runners randomly assigned into NMT (n = 20), NMT plus VCIs (n = 20), and sham (n = 20). MAIN OUTCOME MEASURES Kinematic and kinetic were measured at pre- and post-test and 1-year follow-up. Injury incidence assessed at pre-test and 1-year follow up. RESULTS There were significant between-group differences in kinetics after 6 weeks in NMT plus VCIs group. No significant differences were observed between NMT and NMT plus VCIs in kinematic variables. No significant change was seen in the sham in all variables. At 1-year follow-up, the minimal changes were seen in kinetic variables. Reduction reported running-related injuries were 31.58% in the NMT alone group, 65.52% in NMT plus VCIs group. In sham, it increased to 13.46%. CONCLUSIONS NMT plus VCIs was effective to reduce kinetics and improve kinematics in novice runners. Also, it could reduce injury incidence. This protocol may be an option for both athletic trainers and coaches for preventing of lower limbs' injury in male runners.
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King MG, Semciw AI, Schache AG, Middleton KJ, Heerey JJ, Sritharan P, Scholes MJ, Mentiplay BF, Crossley KM. Lower-Limb Biomechanics in Football Players with and without Hip-related Pain. Med Sci Sports Exerc 2020; 52:1776-1784. [PMID: 32079924 DOI: 10.1249/mss.0000000000002297] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to evaluate the differences in lower-limb biomechanics between adult subelite competitive football players with and without hip-related pain during two contrasting tasks-walking and single-leg drop jump (SLDJ)-and to determine whether potential differences, if present, are sex dependent. METHODS Eighty-eight football players with hip-related pain (23 women, 65 men) and 30 asymptomatic control football players (13 women, 17 men) who were currently participating in competitive sport were recruited. Biomechanical data were collected for the stance phase of walking and SLDJ. Pelvis, hip, knee, and ankle angles, as well as the impulse of the external joint moments, were calculated. Differences between groups and sex-specific effects were calculated using linear regression models. RESULTS Compared with their asymptomatic counterparts, football players with hip-related pain displayed a lower average pelvic drop angle during walking (P = 0.03) and a greater average pelvic hike angle during SLDJ (P < 0.05). Men with hip-related pain displayed a smaller total range of motion (excursion) for the transverse plane pelvis angle (P = 0.03) and a smaller impulse of the hip external rotation moment (P < 0.01) during walking compared with asymptomatic men. Women with hip-related pain displayed a greater total range of motion (excursion) for the sagittal plane knee angle (P = 0.01) during walking compared with asymptomatic women. CONCLUSION Overall, few differences were observed in lower-limb biomechanics between football players with and without hip-related pain, irrespective of the task. This outcome suggests that, despite the presence of symptoms, impairments in lower-limb biomechanics during function do not appear to be a prominent feature of people with hip-related pain who are still participating in sport.
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Affiliation(s)
- Matthew G King
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, AUSTRALIA
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High day-to-day repeatability of lower extremity muscle activation patterns and joint biomechanics of dual-belt treadmill gait: A reliability study in healthy young adults. J Electromyogr Kinesiol 2020; 51:102401. [PMID: 32087511 DOI: 10.1016/j.jelekin.2020.102401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The reliability of lower extremity muscle activation patterns has not been clearly studied in a dual-belt instrumented treadmill environment. The primary study objective was to quantify the day-to-day reliability of quadriceps, hamstrings, gastrocnemius and gluteus medius activation patterns in healthy young adult gait. Secondarily, the reliability of spatiotemporal, and knee/hip motion and moment-based gait outcomes was assessed. SCOPE 20 young adults were recruited and tested on two separate days. Using standardized procedures, participants were prepared for surface electromyography and lower extremity motion capture. All individuals walked on a dual-belt instrumented treadmill while muscle activation, segment motions and ground reaction forces were recorded. Sagittal plane motion and net external sagittal and frontal plane moments were calculated. Discrete biomechanical and muscle activation measures were calculated, and non-negative matrix factorization extracted amplitude and temporal muscle activation features. Intraclass Correlation Coefficients, Standard Error of Measurement and Minimum Detectable Change were calculated. CONCLUSIONS High to excellent Intraclass correlation coefficients were found between visits for most primary and secondary outcomes. The absolute and relative reliability, including Minimum Detectable Change values, provided in this study support the use of dual-belt instrumented treadmill walking as an acceptable medium to collect biomechanical and lower extremity EMG outcomes for future studies.
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Fetters KA. Exploring the Role of the Lateral Gluteal Muscles in Running: Implications for Training. Strength Cond J 2020. [DOI: 10.1519/ssc.0000000000000486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Rehabilitation Exercises for the Gluteus Minimus Muscle Segments: An Electromyography Study. J Sport Rehabil 2019; 28:544-551. [PMID: 29584533 DOI: 10.1123/jsr.2017-0262] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 02/02/2018] [Accepted: 03/06/2018] [Indexed: 11/18/2022]
Abstract
CONTEXT The gluteus minimus (GMin) muscle consists of 2 uniquely oriented segments that have potential for independent function and have different responses to pathology and aging. For healthy young adults, it is unknown that which rehabilitation exercises specifically target the individual segments. OBJECTIVE To quantify segmental GMin activity for 6 common lower-limb rehabilitation exercises in healthy young adults and determine if significant differences exist in segmental activity levels between the exercises. METHOD Six common lower-limb rehabilitation exercises were performed by 10 healthy young adults with fine-wire electromyography (EMG) electrodes inserted into the anterior and posterior segments of the GMin muscle. MAIN OUTCOME MEASURES Electromyography signals were recorded, and median normalized exercise activity levels were reported and compared for each GMin segment across the 6 exercises. RESULTS High activity levels were generated in the anterior segment by the resisted hip abduction-extension exercise (51% maximum voluntary isometric contraction [MVIC]), whereas for the posterior segment, high activity levels were produced by the single-leg bridge (49% MVIC), the side-lie hip abduction (43% MVIC), the resisted hip abduction-extension exercise (43% MVIC), and the single-leg squat (40% MVIC). There were significant differences (P < .05) in the median electromyography activity levels for the anterior GMin segment but not for the posterior GMin segment across some of the exercises with large effect sizes. CONCLUSION Targeted rehabilitation exercises graded by exercise intensity can be prescribed specifically for the anterior and posterior GMin segments to aid in restoration of hip function following injury or aging.
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Letafatkar A, Rabiei P, Farivar N, Alamouti G. Long‐term efficacy of conditioning training program combined with feedback on kinetics and kinematics in male runners. Scand J Med Sci Sports 2019; 30:429-441. [DOI: 10.1111/sms.13587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 10/21/2019] [Accepted: 10/28/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Amir Letafatkar
- Sports Injury and Corrective Exercises Faculty of Physical Education and Sports Sciences Kharazmi University Tehran Iran
| | - Pouya Rabiei
- Department of Physical Education and Sports Sciences Islamic Azad University Karaj Iran
| | - Niloufar Farivar
- Sports Injury and Corrective Exercises Faculty of Physical Education and Sports Sciences Kharazmi University Tehran Iran
| | - Gelareh Alamouti
- Sports Injury and Corrective Exercises Faculty of Physical Education and Sports Sciences Kharazmi University Tehran Iran
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