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Lambrianides Y, Epro G, Arampatzis A, Karamanidis K. Evidence of different sensitivity of muscle and tendon to mechano-metabolic stimuli. Scand J Med Sci Sports 2024; 34:e14638. [PMID: 38671559 DOI: 10.1111/sms.14638] [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: 01/13/2024] [Revised: 03/25/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
This study aimed to examine the temporal dynamics of muscle-tendon adaptation and whether differences between their sensitivity to mechano-metabolic stimuli would lead to non-uniform changes within the triceps surae (TS) muscle-tendon unit (MTU). Twelve young adults completed a 12-week training intervention of unilateral isometric cyclic plantarflexion contractions at 80% of maximal voluntary contraction until failure to induce a high TS activity and hence metabolic stress. Each participant trained one limb at a short (plantarflexed position, 115°: PF) and the other at a long (dorsiflexed position, 85°: DF) MTU length to vary the mechanical load. MTU mechanical, morphological, and material properties were assessed biweekly via simultaneous ultrasonography-dynamometry and magnetic resonance imaging. Our hypothesis that tendon would be more sensitive to the operating magnitude of tendon strain but less to metabolic stress exercise was confirmed as tendon stiffness, Young's modulus, and tendon size were only increased in the DF condition following the intervention. The PF leg demonstrated a continuous increment in maximal AT strain (i.e., higher mechanical demand) over time along with lack of adaptation in its biomechanical properties. The premise that skeletal muscle adapts at a higher rate than tendon and does not require high mechanical load to hypertrophy or increase its force potential during exercise was verified as the adaptive changes in morphological and mechanical properties of the muscle did not differ between DF and PF. Such differences in muscle-tendon sensitivity to mechano-metabolic stimuli may temporarily increase MTU imbalances that could have implications for the risk of tendon overuse injury.
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Affiliation(s)
- Yiannis Lambrianides
- Sport and Exercise Science Research Centre, School of Applied Sciences, London South Bank University, London, UK
| | - Gaspar Epro
- Sport and Exercise Science Research Centre, School of Applied Sciences, London South Bank University, London, UK
| | - Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Kiros Karamanidis
- Sport and Exercise Science Research Centre, School of Applied Sciences, London South Bank University, London, UK
- Department of Sport Science, Faculty for Mathematics and Natural Sciences, University of Koblenz, Koblenz, Germany
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Arampatzis A, Kharazi M, Theodorakis C, Mersmann F, Bohm S. Biarticular mechanisms of the gastrocnemii muscles enhance ankle mechanical power and work during running. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230007. [PMID: 37650058 PMCID: PMC10465202 DOI: 10.1098/rsos.230007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 08/07/2023] [Indexed: 09/01/2023]
Abstract
The objective of the study was to explore how biarticular mechanisms of the gastrocnemii muscles may provide an important energy source for power and work at the ankle joint with increasing running speed. Achilles tendon force was quantified as a proxy of the triceps surae muscle force and the contribution of the monoarticular soleus and the biarticular gastrocnemii to the mechanical power and work performed at the ankle joint was investigated in three running speeds (transition 2.0 m s-1, slow 2.5 m s-1, fast 3.5 m s-1). Although the contribution of the soleus was higher, biarticular mechanisms of the gastrocnemii accounted for a relevant part of the performed mechanical power and work at the ankle joint. There was an ankle-to-knee joint energy transfer in the first part of the stance phase and a knee-to-ankle joint energy transfer during push-off via the gastrocnemii muscles, which made up 16% of the total positive ankle joint work. The rate of knee-to-ankle joint energy transfer increased with speed, indicating a speed-related participation of biarticular mechanisms in running. This energy transfer via the gastrocnemii seems to occur with negligible energy absorption/production from the quadriceps vasti contractile elements and is rather an energy exchange between elastic structures.
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Affiliation(s)
- Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115 Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
| | - Mohamadreza Kharazi
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115 Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
| | - Christos Theodorakis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115 Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
| | - Falk Mersmann
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115 Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
| | - Sebastian Bohm
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115 Berlin, Germany
- Berlin School of Movement Science, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
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Kharazi M, Theodorakis C, Mersmann F, Bohm S, Arampatzis A. Contractile Work of the Soleus and Biarticular Mechanisms of the Gastrocnemii Muscles Increase the Net Ankle Mechanical Work at High Walking Speeds. BIOLOGY 2023; 12:872. [PMID: 37372156 DOI: 10.3390/biology12060872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Increasing walking speed is accompanied by an increase of the mechanical power and work performed at the ankle joint despite the decrease of the intrinsic muscle force potential of the soleus (Sol) and gastrocnemius medialis (GM) muscles. In the present study, we measured Achilles tendon (AT) elongation and, based on an experimentally determined AT force-elongation relationship, quantified AT force at four walking speeds (slow 0.7 m.s-1, preferred 1.4 m.s-1, transition 2.0 m.s-1, and maximum 2.6 ± 0.3 m.s-1). Further, we investigated the mechanical power and work of the AT force at the ankle joint and, separately, the mechanical power and work of the monoarticular Sol at the ankle joint and the biarticular gastrocnemii at the ankle and knee joints. We found a 21% decrease in maximum AT force at the two higher speeds compared to the preferred; however, the net work of the AT force at the ankle joint (ATF work) increased as a function of walking speed. An earlier plantar flexion accompanied by an increased electromyographic activity of the Sol and GM muscles and a knee-to-ankle joint energy transfer via the biarticular gastrocnemii increased the net ATF mechanical work by 1.7 and 2.4-fold in the transition and maximum walking speed, respectively. Our findings provide first-time evidence for a different mechanistic participation of the monoarticular Sol muscle (i.e., increased contractile net work carried out) and the biarticular gastrocnemii (i.e., increased contribution of biarticular mechanisms) to the speed-related increase of net ATF work.
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Affiliation(s)
- Mohamadreza Kharazi
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Berlin School of Movement Science, 10115 Berlin, Germany
| | - Christos Theodorakis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Berlin School of Movement Science, 10115 Berlin, Germany
| | - Falk Mersmann
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Berlin School of Movement Science, 10115 Berlin, Germany
| | - Sebastian Bohm
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Berlin School of Movement Science, 10115 Berlin, Germany
| | - Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Berlin School of Movement Science, 10115 Berlin, Germany
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Mansur H, de Noronha M, Marqueti RDC, Durigan JLQ. Acute lateral ankle sprain alters muscle and tendon properties: Case series. Foot Ankle Surg 2022; 28:402-408. [PMID: 34034977 DOI: 10.1016/j.fas.2021.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/14/2021] [Accepted: 05/14/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Acute lateral ankle sprain (LAS) is the most prevalent acute sports trauma. Ankle muscle atrophy and tendon volume decrease have not been analyzed concomitantly with functional impairment and pain following LAS. The objective of the present study was to investigate muscle cross-section area (CSA), tendon CSA and volume, ankle function, and pain in individuals who suffered an acute LAS. METHODS A series of cases, cross-sectional study with 20 participants who suffered moderate (grade II) and severe (grade III) acute LAS was undertaken. CSA for muscles (Tibialis Posterior, Fibularis, and Soleus) and tendons (Tibialis Anterior, Tibialis posterior, Fibularis, and Achilles), and volume were measured by magnetic resonance imaging (MRI) less than 48 h (baseline) and 6-weeks after the acute LAS. Ankle function (Cumberland Ankle Instability Tool [CAIT] and Foot and Ankle Outcome Score [FAOS]), ankle mechanical instability (Anterior Drawer Test [ADT]), and pain were also assessed. RESULTS All tendons and muscles showed a significant reduction in CSA and volume between baseline and 6-weeks (P < .001). A significant decrease in ankle function was observed 6 weeks after the LAS, along with a reduction in pain and mechanical instability (P = .001). Regarding sprain magnitude, the only difference observed was greater atrophy in muscle CSA in participants with grade III ankle sprain. CONCLUSION Patients with acute LAS showed atrophy of ankle muscles and decreased tendon volume and CSA, followed by function impairments at 6-week follow-up. LEVEL OF EVIDENCE IV, Case series study.
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Affiliation(s)
- Henrique Mansur
- Graduate Program in Physical Education Sciences, University of Brasília (UnB), Federal District, Brazil.
| | - Marcos de Noronha
- La Trobe University - Rural Health School, Bendigo, Victoria, Australia
| | - Rita de Cássia Marqueti
- Graduate Program in Rehabilitation Sciences, University of Brasília (UnB), Ceilândia, Federal District, Brazil
| | - João Luiz Quagliotti Durigan
- Graduate Program in Physical Education Sciences, University of Brasília (UnB), Federal District, Brazil; Graduate Program in Rehabilitation Sciences, University of Brasília (UnB), Ceilândia, Federal District, Brazil
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Mensch A, Nägel S, Zierz S, Kraya T, Stoevesandt D. Bildgebung der Muskulatur bei Neuromuskulären Erkrankungen
– von der Initialdiagnostik bis zur Verlaufsbeurteilung. KLIN NEUROPHYSIOL 2022. [DOI: 10.1055/a-1738-5356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
ZusammenfassungDie bildgebende Diagnostik hat sich zu einem integralen Element der Betreuung von
PatientInnen mit neuromuskulären Erkrankungen entwickelt. Als
wesentliches Diagnostikum ist hierbei die Magnetresonanztomografie als breit
verfügbares und vergleichsweise standardisiertes Untersuchungsverfahren
etabliert, wobei die Sonografie der Muskulatur bei hinreichend erfahrenem
Untersucher ebenfalls geeignet ist, wertvolle diagnostische Informationen zu
liefern. Das CT hingegen spielt eine untergeordnete Rolle und sollte nur bei
Kontraindikationen für eine MRT in Erwägung gezogen werden.
Zunächst wurde die Bildgebung bei Muskelerkrankungen primär in
der Initialdiagnostik unter vielfältigen Fragestellungen eingesetzt. Das
Aufkommen innovativer Therapiekonzepte bei verschiedenen neuromuskulären
Erkrankungen machen neben einer möglichst frühzeitigen
Diagnosestellung insbesondere auch eine multimodale Verlaufsbeurteilung zur
Evaluation des Therapieansprechens notwendig. Auch hier wird die Bildgebung der
Muskulatur als objektiver Parameter des Therapieerfolges intensiv diskutiert und
in Forschung wie Praxis zunehmend verwendet.
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Affiliation(s)
- Alexander Mensch
- Universitätsklinik und Poliklinik für Neurologie,
Martin-Luther-Universität Halle-Wittenberg und
Universitätsklinikum Halle, Halle (Saale)
| | - Steffen Nägel
- Universitätsklinik und Poliklinik für Neurologie,
Martin-Luther-Universität Halle-Wittenberg und
Universitätsklinikum Halle, Halle (Saale)
| | - Stephan Zierz
- Universitätsklinik und Poliklinik für Neurologie,
Martin-Luther-Universität Halle-Wittenberg und
Universitätsklinikum Halle, Halle (Saale)
| | - Torsten Kraya
- Universitätsklinik und Poliklinik für Neurologie,
Martin-Luther-Universität Halle-Wittenberg und
Universitätsklinikum Halle, Halle (Saale)
- Klinik für Neurologie, Klinikum St. Georg,
Leipzig
| | - Dietrich Stoevesandt
- Universitätsklinik und Poliklinik für Radiologie,
Martin-Luther-Universität Halle-Wittenberg und
Universitätsklinikum Halle, Halle (Saale)
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Yoon JR, Joo HJ, Lee SH. Quadriceps muscle volume has no effect on patellofemoral cartilage lesions in patients with end-stage knee osteoarthritis. Knee Surg Relat Res 2022; 34:6. [PMID: 35183256 PMCID: PMC8858450 DOI: 10.1186/s43019-022-00134-6] [Citation(s) in RCA: 2] [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: 09/01/2021] [Accepted: 01/29/2022] [Indexed: 01/16/2023] Open
Abstract
PURPOSE The quadriceps muscle has a positive effect on anterior knee pain. However, its effect on the patellofemoral (PF) cartilage in patients with end-stage knee osteoarthritis is unknown. The present study aimed to evaluate whether the quadriceps muscle area had a positive effect on the PF cartilage and whether this muscle had a positive effect on the clinical scores. MATERIALS AND METHODS Patients with confirmed cartilage status and clinical scores who underwent total knee arthroplasty (TKA) were included. The PF cartilage status was evaluated during TKA. The thickness and the area of the quadriceps muscle were measured using a knee computed tomography scan obtained before the surgery. The Q-angle, hip-knee-ankle angle, alignment, and Insall-Salvati ratio were measured by radiography. RESULTS Altogether, 204 patients were included in the study. Logistic regression was performed including factors associated with PF cartilage lesions. The regression model was found to be statistically significant (Hosmer-Lemeshow test, χ2 = 0.493). A smaller hip-knee-ankle (HKA) angle was associated with a higher incidence of PF cartilage lesions (p = 0.033) and only the alignment had an effect on the PF cartilage lesions. PF cartilage lesions did not correlate with the clinical scores. A thicker medial portion of the quadriceps muscle was associated with a significantly higher Knee Society Knee Score (KSKS) (p = 0.028). CONCLUSIONS Quadriceps muscle thickness and area, Q-angle, and patellar height were not associated with PF cartilage lesions, while a smaller HKA angle was associated with PF cartilage lesions. The presence of PF cartilage lesions did not affect the clinical symptoms. However, a thicker medial portion of the quadriceps muscle was associated with a higher KSKS.
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Affiliation(s)
- Jung-Ro Yoon
- Department of Orthopedic Surgery, Veterans Health Service Medical Center, 53 Jinhwangdo-ro 61-gil, Gangdong-gu, Seoul, 05368, Republic of Korea
| | - Hong Joon Joo
- Department of Orthopedic Surgery, Veterans Health Service Medical Center, 53 Jinhwangdo-ro 61-gil, Gangdong-gu, Seoul, 05368, Republic of Korea
| | - Seung Hoon Lee
- Department of Orthopedic Surgery, Veterans Health Service Medical Center, 53 Jinhwangdo-ro 61-gil, Gangdong-gu, Seoul, 05368, Republic of Korea.
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Belzunce MA, Henckel J, Di Laura A, Hart AJ. Reference values for volume, fat content and shape of the hip abductor muscles in healthy individuals from Dixon MRI. NMR IN BIOMEDICINE 2022; 35:e4636. [PMID: 34704291 DOI: 10.1002/nbm.4636] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 09/07/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Healthy hip abductor muscles are a good indicator of a healthy hip and an active lifestyle, as they are greatly involved in human daily activities. Fatty infiltration and muscle atrophy are associated with loss of strength, loss of mobility and hip disease. However, these variables have not been widely studied in this muscle group. We aimed to characterize the hip abductor muscles in a group of healthy individuals to establish reference values for volume, intramuscular fat content and shape of this muscle group. To achieve this, we executed a cross-sectional study using Dixon MRI scans of 51 healthy subjects. We used an automated segmentation method to label GMAX, GMED, GMIN and TFL muscles, measured normalized volume (NV) using lean body mass, fat fraction (FF) and lean muscle volume for each subject and computed non-parametric statistics for each variable grouped by sex and age. We measured these variables for each axial slice and created cross-sectional area and FF axial profiles for each muscle. Finally, we generated sex-specific atlases with FF statistical images. We measured median (IQR) NV values of 12.6 (10.8-13.8), 6.3 (5.6-6.7), 1.6 (1.4-1.7) and 0.8 (0.6-1.0) cm3 /kg for GMAX, GMED, GMIN and TFL, and median (IQR) FF values of 12.3 (10.1-15.9)%, 9.8 (8.6-11.2)%, 10.0 (9.0-12.0)% and 10.2 (7.8-13.5)% respectively. FF values were significantly higher for females for the four muscles (p < 0.01), but there were no significant differences between the two age groups. When comparing individual muscles, we observed a significantly higher FF in GMAX than in the other muscles. The reported novel reference values and axial profiles for volume and FF of the hip abductors, together with male and female atlases, are tools that could potentially help to quantify and detect early the deteriorating effects of hip disease or sarcopenia.
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Affiliation(s)
| | | | | | - Alister J Hart
- Royal National Orthopaedic Hospital, Stanmore, UK
- Institute of Orthopaedics and Musculoskeletal Science, University College London, Stanmore, UK
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Vastus lateralis muscle volume prediction in early-adolescent boys. J Biomech 2021; 128:110735. [PMID: 34536901 DOI: 10.1016/j.jbiomech.2021.110735] [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: 12/10/2020] [Revised: 09/01/2021] [Accepted: 09/01/2021] [Indexed: 11/20/2022]
Abstract
The applicability of a simplified approach for muscle volume assessment, based on multiplying muscle length, maximum anatomical cross-sectional area (ACSAmax) and a muscle-specific shape factor, was investigated in the present study for the vastus lateralis muscle of early-adolescent boys. Muscle length, ACSAmax and volume were calculated from magnetic resonance image muscle reconstructions of early-adolescent athletes (n = 14) and untrained peers (n = 10). A cohort-specific shape factor was obtained from the ratio of the measured volume and the product of ACSAmax and muscle length, which did not differ significantly between trained and untrained adolescents despite significant differences in anthropometry and muscle dimensions. Further, muscle volumes assessed based on the cohort-specific shape factor did not differ significantly from the measured muscle volumes with an average root mean square difference (RMS) of 4.6%. Muscle volumes assessed with a shape factor previously reported for the vastus lateralis of adults were however significantly higher in comparison to the measured muscle volumes (P < 0.001; RMS = 8.5%). These results indicate that a cohort-specific shape factor should be applied when assessing vastus lateralis muscle volume in early-adolescents as muscle development from childhood to adulthood seems to be accompanied by changes in muscle shape.
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Bell M, Al Masruri G, Fernandez J, Williams SA, Agur AM, Stott NS, Hajarizadeh B, Mirjalili A. Typical m. triceps surae morphology and architecture measurement from 0 to 18 years: A narrative review. J Anat 2021; 240:746-760. [PMID: 34750816 PMCID: PMC8930835 DOI: 10.1111/joa.13584] [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: 07/04/2021] [Revised: 10/18/2021] [Accepted: 10/25/2021] [Indexed: 12/01/2022] Open
Abstract
The aim of this review was to report on the imaging modalities used to assess morphological and architectural properties of the m. triceps surae muscle in typically developing children, and the available reliability analyses. Scopus and MEDLINE (Pubmed) were searched systematically for all original articles published up to September 2020 measuring morphological and architectural properties of the m. triceps surae in typically developing children (18 years or under). Thirty eligible studies were included in this analysis, measuring fibre bundle length (FBL) (n = 11), pennation angle (PA) (n = 10), muscle volume (MV) (n = 16) and physiological cross‐sectional area (PCSA) (n = 4). Three primary imaging modalities were utilised to assess these architectural parameters in vivo: two‐dimensional ultrasound (2DUS; n = 12), three‐dimensional ultrasound (3DUS; n = 9) and magnetic resonance imaging (MRI; n = 6). The mean age of participants ranged from 1.4 years to 18 years old. There was an apparent increase in m. gastrocnemius medialis MV and pCSA with age; however, no trend was evident with FBL or PA. Analysis of correlations of muscle variables with age was limited by a lack of longitudinal data and methodological variations between studies affecting outcomes. Only five studies evaluated the reliability of the methods. Imaging methodologies such as MRI and US may provide valuable insight into the development of skeletal muscle from childhood to adulthood; however, variations in methodological approaches can significantly influence outcomes. Researchers wishing to develop a model of typical muscle development should carry out longitudinal architectural assessment of all muscles comprising the m. triceps surae utilising a consistent approach that minimises confounding errors.
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Affiliation(s)
- Matthew Bell
- Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Ghaliya Al Masruri
- Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Justin Fernandez
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.,Department of Engineering Science, University of Auckland, Auckland, New Zealand
| | - Sîan A Williams
- Faculty of Health Sciences, Curtin School of Allied Health, Curtin University, Perth, Australia.,Faculty of Medical and Health Sciences, Department of Surgery, University of Auckland, Auckland, New Zealand
| | - Anne M Agur
- Division of Anatomy, Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Ngaire S Stott
- Faculty of Medical and Health Sciences, Department of Surgery, University of Auckland, Auckland, New Zealand
| | | | - Ali Mirjalili
- Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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10
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Zellers JA, Commean PK, Chen L, Mueller MJ, Hastings MK. A limited number of slices yields comparable results to all slices in foot intrinsic muscle deterioration ratio on computed tomography and magnetic resonance imaging. J Biomech 2021; 129:110750. [PMID: 34555631 DOI: 10.1016/j.jbiomech.2021.110750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/17/2021] [Accepted: 09/08/2021] [Indexed: 01/20/2023]
Abstract
Diagnostic imaging modalities, like computed tomography (CT) and magnetic resonance imaging (MRI), can be used to assess in vivo muscle quality. Quantitative assessment using these techniques is time-intensive and costly due in part to extensive post-processing needs. The purpose of this study was to identify whether a subset of slices on CT and MRI would yield comparable results to the full number of slices for a measure of muscle quality (muscle deterioration ratio = fat volume/muscle volume) in the foot intrinsic muscles of people with diabetes and peripheral neuropathy. CT (0.6 mm slice thickness) and MRI (3.5 mm slice thickness) scans were obtained using previously described methods. The total number of slices acquired during the scan was compared to several conditions using a portion of slices. Bland-Altman plots and Lin's concordance correlation coefficient were used to test agreement. Any condition using at least three slices yielded substantial to almost perfect agreement with the total number of slices on both CT and MRI (Range of Lin's concordance correlation coefficient: 0.947-0.999). Using a single slice in the middle of the region of interest demonstrated poor to moderate agreement with the total number of slices. The findings of this study suggest that using a limited number of slices to quantify muscle deterioration ratio on CT or MRI is a viable way to balance the combined need for measurement accuracy with feasibility in research and clinical settings.
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Affiliation(s)
- Jennifer A Zellers
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, United States
| | - Paul K Commean
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, United States
| | - Ling Chen
- Division of Biostatistics, Washington University School of Medicine in St. Louis, United States
| | - Michael J Mueller
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, United States
| | - Mary K Hastings
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, United States.
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Automated multi-atlas segmentation of gluteus maximus from Dixon and T1-weighted magnetic resonance images. MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE 2020; 33:677-688. [PMID: 32152794 DOI: 10.1007/s10334-020-00839-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/02/2020] [Accepted: 02/18/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To design, develop and evaluate an automated multi-atlas method for segmentation and volume quantification of gluteus maximus from Dixon and T1-weighted images. MATERIALS AND METHODS The multi-atlas segmentation method uses an atlas library constructed from 15 Dixon MRI scans of healthy subjects. A non-rigid registration between each atlas and the target, followed by majority voting label fusion, is used in the segmentation. We propose a region of interest (ROI) to standardize the measurement of muscle bulk. The method was evaluated using the dice similarity coefficient (DSC) and the relative volume difference (RVD) as metrics, for Dixon and T1-weighted target images. RESULTS The mean(± SD) DSC was 0.94 ± 0.01 for Dixon images, while 0.93 ± 0.02 for T1-weighted. The RVD between the automated and manual segmentation had a mean(± SD) value of 1.5 ± 4.3% for Dixon and 1.5 ± 4.8% for T1-weighted images. In the muscle bulk ROI, the DSC was 0.95 ± 0.01 and the RVD was 0.6 ± 3.8%. CONCLUSION The method allows an accurate fully automated segmentation of gluteus maximus for Dixon and T1-weighted images and provides a relatively accurate volume measurement in shorter times (~ 20 min) than the current gold-standard manual segmentations (2 h). Visual inspection of the segmentation would be required when higher accuracy is needed.
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12
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Karamanidis K, Epro G, König M, Mersmann F, Arampatzis A. Simplified Triceps Surae Muscle Volume Assessment in Older Adults. Front Physiol 2019; 10:1299. [PMID: 31649560 PMCID: PMC6795759 DOI: 10.3389/fphys.2019.01299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 09/27/2019] [Indexed: 11/27/2022] Open
Abstract
Triceps surae (TS) muscle volume can be estimated in young adults by only considering the maximal anatomical cross-sectional area (ACSAmax) and the length of the muscle due to the presence of a constant muscle-specific shape factor. This study aimed to investigate if this simplified muscle volume assessment is also applicable in older adults or if muscle-specific shape changes with aging. MRI sequences were taken from the dominant leg of 21 older female adults. The boundaries of all three TS muscles (SOL, soleus; GM, gastrocnemius medialis; GL, gastrocnemius lateralis) were manually outlined in transverse image sequences, and muscle volume for each muscle was calculated as the integral of the obtained cross-sectional areas of the contours along the whole length of the muscle (measured volume) and, in addition, by using the average muscle-specific shape factors of each muscle obtained from the ratio of the measured volume and the product of ACSAmax and the muscle length (estimated volume). There were no differences in the measured and estimated muscle volumes (SOL: 357.7 ± 61.8 vs. 358.8 ± 65.3 cm3; GM: 179.5 ± 32.8 vs. 179.8 ± 33.3 cm3; GL: 90.2 ± 15.9 vs. 90.4 ± 14.8 cm3). However, when using the reported shape factors of younger adults instead, we found a significant (p < 0.05) overestimation of muscle volume for SOL and GM with average RMS differences of 6.1 and 7.6%, respectively. These results indicate that corrections of muscle-specific shape factors are needed when using the previously proposed simplified muscle volume assessment as aging may not only be accompanied with muscle atrophy but also changes in the shape of skeletal muscle.
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Affiliation(s)
- Kiros Karamanidis
- School of Applied Sciences, Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
| | - Gaspar Epro
- School of Applied Sciences, Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
| | - Matthias König
- School of Applied Sciences, Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
| | - Falk Mersmann
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany
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Winkler T, Mersmann F, von Roth P, Dietrich R, Bierbaum S, Arampatzis A. Development of a Non-invasive Methodology for the Assessment of Muscle Fibre Composition. Front Physiol 2019; 10:174. [PMID: 30914961 PMCID: PMC6421337 DOI: 10.3389/fphys.2019.00174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 02/12/2019] [Indexed: 11/13/2022] Open
Abstract
The percentage area of fast twitch fibres of a muscle is a major determinant of muscle mechanical power and, thus, an important biomarker for the evaluation of training processes. However, the invasive character of the assessment (muscle biopsy) limits the wide application of the biomarker in the training praxis. Our purpose was to develop a non-invasive method for the assessment of fast twitch fibre content in human soleus muscle. From a theoretical point of view, the maximum muscle mechanical power depends on the fibre composition, the muscle volume and muscle specific tension. Therefore, we hypothesised that the percentage area of type II fibres would show a correlation with the maximum muscle mechanical power normalised to muscle volume and specific muscle contractile strength (i.e., plantar flexion moment divided by muscle cross-sectional area). In 20 male adults, the percentage area of type II fibres, volume and maximum cross-sectional area of the soleus muscle as well as the maximum plantar flexion moment and the maximum mechanical power were measured using muscle biopsies, magnetic resonance imaging and dynamometry. The maximum mechanical power normalised to muscle volume and specific muscle contractile strength provided a significant relationship (r = 0.654, p = 0.002) with the percentage area of type II fibres. Although the proposed assessment parameter cannot fully replace histological measurements, the predictive power of 43% can provide a relevant contribution to performance diagnostics in the training praxis.
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Affiliation(s)
- Tobias Winkler
- Center for Musculoskeletal Surgery (CMSC), Charité Universitätsmedizin Berlin, Berlin, Germany.,Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Falk Mersmann
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Philipp von Roth
- Center for Musculoskeletal Surgery (CMSC), Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ralf Dietrich
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Stefanie Bierbaum
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany
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Low relative muscle volume: Correlation with prevalence of venous thromboembolism following total knee arthroplasty. PLoS One 2019; 14:e0210800. [PMID: 30835735 PMCID: PMC6400339 DOI: 10.1371/journal.pone.0210800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 01/02/2019] [Indexed: 12/18/2022] Open
Abstract
Background There have been many efforts to find modifiable risk factors for venous thromboembolism (VTE) in the perioperative period of total knee arthroplasty (TKA), while no study has investigated the relationship between the muscle mass and deep vein thrombosis (DVT) or pulmonary embolism frequency following TKA. This study aimed to evaluate the relationship between muscle volume and the prevalence of symptomatic and radiologically confirmed venous thromboembolism (VTE) after total knee arthroplasty (TKA). Methods A total of 261 consecutive patients who underwent primary TKA between 2013 and 2015 were enrolled. Computed tomographic venography with pulmonary angiography (CTVPA) was performed between the 5th and 7th postoperative days to assess the presence of VTE. Four parameters of muscle volume at three levels were evaluated on CTVPA: (i) the cross-sectional area of all skeletal muscles (skeletal muscle index) and total psoas area at the level of the third lumbar vertebrae; (ii) the vastus lateralis muscle at the thigh level; and (iii) the posterior crural muscle at the lower leg level. The relationship between the muscle volume at each level and the prevalence of VTE after TKA was evaluated with multivariate adjusted logistic regression models. Results The CTVPA scan showed no proximal DVT, and all thrombi were located in muscular, peroneal, and posterior tibial veins. In unilateral TKA, patients with lower muscle volume of the vastus lateralis at the thigh level in the nonoperated limb had significantly higher prevalence of distal DVT in the operated limb (adjusted OR: 2.97 at subclinical DVT revealed by CTVPA and adjusted OR: 2.68 at symptomatic DVT). This finding was also discovered in patients who underwent simultaneous bilateral TKA (adjusted OR: 1.73–2.97 at subclinical DVT and adjusted OR:1.76–1.86 at symptomatic DVT). Conclusions The relative muscle volume of the vastus lateralis at the thigh level was negatively associated with the prevalence of symptomatic and radiologically confirmed DVT, suggesting that low thigh muscle mass is an independent risk factor for VTE in the postoperative period of TKA.
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Noorkoiv M, Theis N, Lavelle G. A comparison of 3D ultrasound to MRI for the measurement and estimation of gastrocnemius muscle volume in adults and young people with and without cerebral palsy. Clin Anat 2019; 32:319-327. [DOI: 10.1002/ca.23314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 07/31/2018] [Accepted: 11/14/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Marika Noorkoiv
- Institute of Environment, Health and Societies, Ageing Studies Research Theme, Brunel University London; Uxbridge United Kingdom
- Centre for Human Performance; Exercise and Rehabilitation, College of Health and Life Sciences, Brunel University London; Uxbridge United Kingdom
- Division of Physiotherapy, Department of Clinical Sciences; Brunel University London; Uxbridge United Kingdom
| | - Nicola Theis
- Faculty of Applied Sciences; Oxstalls Campus, University of Gloucestershire; Gloucester United Kingdom
| | - Grace Lavelle
- Institute of Environment, Health and Societies, Ageing Studies Research Theme, Brunel University London; Uxbridge United Kingdom
- Centre for Human Performance; Exercise and Rehabilitation, College of Health and Life Sciences, Brunel University London; Uxbridge United Kingdom
- Division of Physiotherapy, Department of Clinical Sciences; Brunel University London; Uxbridge United Kingdom
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Pons C, Borotikar B, Garetier M, Burdin V, Ben Salem D, Lempereur M, Brochard S. Quantifying skeletal muscle volume and shape in humans using MRI: A systematic review of validity and reliability. PLoS One 2018; 13:e0207847. [PMID: 30496308 PMCID: PMC6264864 DOI: 10.1371/journal.pone.0207847] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 11/07/2018] [Indexed: 12/11/2022] Open
Abstract
AIMS The aim of this study was to report the metrological qualities of techniques currently used to quantify skeletal muscle volume and 3D shape in healthy and pathological muscles. METHODS A systematic review was conducted (Prospero CRD42018082708). PubMed, Web of Science, Cochrane and Scopus databases were searched using relevant keywords and inclusion/exclusion criteria. The quality of the articles was evaluated using a customized scale. RESULTS Thirty articles were included, 6 of which included pathological muscles. Most evaluated lower limb muscles. Partially or completely automatic and manual techniques were assessed in 10 and 24 articles, respectively. Manual slice-by-slice segmentation reliability was good-to-excellent (n = 8 articles) and validity against dissection was moderate to good(n = 1). Manual slice-by-slice segmentation was used as a gold-standard method in the other articles. Reduction of the number of manually segmented slices (n = 6) provided good to excellent validity if a sufficient number of appropriate slices was chosen. Segmentation on one slice (n = 11) increased volume errors. The Deformation of a Parametric Specific Object (DPSO) method (n = 5) decreased the number of manually-segmented slices required for any chosen level of error. Other automatic techniques combined with different statistical shape or atlas/images-based methods (n = 4) had good validity. Some particularities were highlighted for specific muscles. Except for manual slice by slice segmentation, reliability has rarely been reported. CONCLUSIONS The results of this systematic review help the choice of appropriate segmentation techniques, according to the purpose of the measurement. In healthy populations, techniques that greatly simplified the process of manual segmentation yielded greater errors in volume and shape estimations. Reduction of the number of manually segmented slices was possible with appropriately chosen segmented slices or with DPSO. Other automatic techniques showed promise, but data were insufficient for their validation. More data on the metrological quality of techniques used in the cases of muscle pathology are required.
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Affiliation(s)
- Christelle Pons
- Pediatric rehabilitation department, Fondation ILDYS, Brest, France
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
| | - Bhushan Borotikar
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
| | - Marc Garetier
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
- Radiology department, hôpital d'Instruction des Armées Clermont-Tonnerre, Brest, France
| | - Valérie Burdin
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
- IMT Atlantique, Brest, France
| | - Douraied Ben Salem
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
- Université de Bretagne Occidentale, Brest, France
- Radiology department, CHRU de Brest, Brest, France
| | - Mathieu Lempereur
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
- Université de Bretagne Occidentale, Brest, France
- PMR department, CHRU de Brest, Hopital Morvan, Brest, France
| | - Sylvain Brochard
- Pediatric rehabilitation department, Fondation ILDYS, Brest, France
- Laboratoire de Traitement de l’Information Médicale, INSERM, Brest, France
- Université de Bretagne Occidentale, Brest, France
- PMR department, CHRU de Brest, Hopital Morvan, Brest, France
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17
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Operating length and velocity of human vastus lateralis muscle during walking and running. Sci Rep 2018; 8:5066. [PMID: 29567999 PMCID: PMC5864755 DOI: 10.1038/s41598-018-23376-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/12/2018] [Indexed: 11/16/2022] Open
Abstract
According to the force-length-velocity relationships, the muscle force potential during locomotion is determined by the operating fibre length and velocity. We measured fascicle and muscle-tendon unit length and velocity as well as the activity of the human vastus lateralis muscle (VL) during walking and running. Furthermore, we determined the VL force-length relationship experimentally and calculated the force-length and force-velocity potentials (i.e. fraction of maximum force according to the force-length-velocity curves) for both gaits. During the active state of the stance phase, fascicles showed significantly (p < 0.05) smaller length changes (walking: 9.2 ± 4.7% of optimal length (L0); running: 9.0 ± 8.4%L0) and lower velocities (0.46 ± 0.36 L0/s; 0.03 ± 0.83 L0/s) compared to the muscle-tendon unit (walking: 19.7 ± 5.3%L0, −0.94 ± 0.32 L0/s; running: 34.5 ± 5.8%L0, −2.59 ± 0.41 L0/s). The VL fascicles operated close to optimum length (L0 = 9.4 ± 0.11 cm) in both walking (8.6 ± 0.14 cm) and running (10.1 ± 0.19 cm), resulting in high force-length (walking: 0.92 ± 0.08; running: 0.91 ± 0.14) and force-velocity (0.91 ± 0.08; 0.97 ± 0.13) potentials. For the first time we demonstrated that, in contrast to the current general conception, the VL fascicles operate almost isometrically and close to L0 during the active state of the stance phase of walking and running. The findings further verify an important contribution of the series-elastic element to VL fascicle dynamics.
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Nikolaidou ME, Marzilger R, Bohm S, Mersmann F, Arampatzis A. Operating length and velocity of human M. vastus lateralis fascicles during vertical jumping. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170185. [PMID: 28573027 PMCID: PMC5451828 DOI: 10.1098/rsos.170185] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 06/01/2023]
Abstract
Humans achieve greater jump height during a counter-movement jump (CMJ) than in a squat jump (SJ). However, the crucial difference is the mean mechanical power output during the propulsion phase, which could be determined by intrinsic neuro-muscular mechanisms for power production. We measured M. vastus lateralis (VL) fascicle length changes and activation patterns and assessed the force-length, force-velocity and power-velocity potentials during the jumps. Compared with the SJ, the VL fascicles operated on a more favourable portion of the force-length curve (7% greater force potential, i.e. fraction of VL maximum force according to the force-length relationship) and more disadvantageous portion of the force-velocity curve (11% lower force potential, i.e. fraction of VL maximum force according to the force-velocity relationship) in the CMJ, indicating a reciprocal effect of force-length and force-velocity potentials for force generation. The higher muscle activation (15%) could therefore explain the moderately greater jump height (5%) in the CMJ. The mean fascicle-shortening velocity in the CMJ was closer to the plateau of the power-velocity curve, which resulted in a greater (15%) power-velocity potential (i.e. fraction of VL maximum power according to the power-velocity relationship). Our findings provide evidence for a cumulative effect of three different mechanisms-i.e. greater force-length potential, greater power-velocity potential and greater muscle activity-for an advantaged power production in the CMJ contributing to the marked difference in mean mechanical power (56%) compared with SJ.
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Affiliation(s)
- Maria Elissavet Nikolaidou
- School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Robert Marzilger
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin School of Movement Science, Berlin, Germany
| | - Sebastian Bohm
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin School of Movement Science, Berlin, Germany
| | - Falk Mersmann
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin School of Movement Science, Berlin, Germany
| | - Adamantios Arampatzis
- Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin School of Movement Science, Berlin, Germany
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Ryan JM, Theis N, Kilbride C, Baltzopoulos V, Waugh C, Shortland A, Lavelle G, Noorkoiv M, Levin W, Korff T. Strength Training for Adolescents with cerebral palsy (STAR): study protocol of a randomised controlled trial to determine the feasibility, acceptability and efficacy of resistance training for adolescents with cerebral palsy. BMJ Open 2016; 6:e012839. [PMID: 27707836 PMCID: PMC5073599 DOI: 10.1136/bmjopen-2016-012839] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Gait is inefficient in children with cerebral palsy, particularly as they transition to adolescence. Gait inefficiency may be associated with declines in gross motor function and participation among adolescents with cerebral palsy. Resistance training may improve gait efficiency through a number of biomechanical and neural mechanisms. The aim of the Strength Training for Adolescents with cerebral palsy (STAR) trial is to evaluate the effect of resistance training on gait efficiency, activity and participation in adolescents with cerebral palsy. We also aim to determine the biomechanical and neural adaptations that occur following resistance training and evaluate the feasibility and acceptability of such an intervention for adolescents with cerebral palsy. METHODS AND ANALYSIS 60 adolescents (Gross Motor Function Classification System level I-III) will be randomised to a 10-week resistance training group or a usual care control group according to a computer-generated random schedule. The primary outcome is gait efficiency. Secondary outcomes are habitual physical activity, participation, muscle-tendon mechanics and gross motor function. General linear models will be used to evaluate differences in continuous data between the resistance training and usual care groups at 10 and 22 weeks, respectively. A process evaluation will be conducted alongside the intervention. Fidelity of the resistance training programme to trial protocol will be quantified by observations of exercise sessions. Semistructured interviews will be conducted with participants and physiotherapists following the resistance training programme to determine feasibility and acceptability of the programme. ETHICS AND DISSEMINATION This trial has ethical approval from Brunel University London's Department of Clinical Sciences' Research Ethics Committee and the National Research Ethics Service (NRES) Committee London-Surrey Borders. The results of the trial will be submitted for publication in academic journals, presented at conferences and distributed to adolescents, families and healthcare professionals through the media with the assistance of the STAR advisory group. TRIAL REGISTRATION NUMBER ISRCTN90378161; Pre-results.
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Affiliation(s)
- Jennifer M Ryan
- College of Health and Life Sciences, Brunel University London, London, UK
| | - Nicola Theis
- School of Sport, Health and Applied Science, St. Mary's University, Twickenham, UK
| | - Cherry Kilbride
- College of Health and Life Sciences, Brunel University London, London, UK
| | | | - Charlie Waugh
- Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Adam Shortland
- One Small Step Gait Laboratory, Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Grace Lavelle
- College of Health and Life Sciences, Brunel University London, London, UK
| | - Marika Noorkoiv
- College of Health and Life Sciences, Brunel University London, London, UK
| | - Wendy Levin
- Department of Physiotherapy, Royal Free London NHS Foundation Trust, Swiss Cottage School Development and Research Centre, London, UK
| | - Thomas Korff
- College of Health and Life Sciences, Brunel University London, London, UK
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20
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Amabile C, Moal B, Chtara OA, Pillet H, Raya JG, Iannessi A, Skalli W, Lafage V, Bronsard N. Estimation of spinopelvic muscles' volumes in young asymptomatic subjects: a quantitative analysis. Surg Radiol Anat 2016; 39:393-403. [PMID: 27637762 DOI: 10.1007/s00276-016-1742-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 09/06/2016] [Indexed: 01/14/2023]
Abstract
PURPOSE Muscles have been proved to be a major component in postural regulation during pathological evolution or aging. Particularly, spinopelvic muscles are recruited for compensatory mechanisms such as pelvic retroversion, or knee flexion. Change in muscles' volume could, therefore, be a marker of greater postural degradation. Yet, it is difficult to interpret spinopelvic muscular degradation as there are few reported values for young asymptomatic adults to compare to. The objective was to provide such reference values on spinopelvic muscles. A model predicting the muscular volume from reduced set of MRI segmented images was investigated. METHODS A total of 23 asymptomatic subjects younger than 24 years old underwent an MRI acquisition from T12 to the knee. Spinopelvic muscles were segmented to obtain an accurate 3D reconstruction, allowing precise computation of muscle's volume. A model computing the volume of muscular groups from less than six MRI segmented slices was investigated. RESULTS Baseline values have been reported in tables. For all muscles, invariance was found for the shape factor [ratio of volume over (area times length): SD < 0.04] and volume ratio over total volume (SD < 1.2 %). A model computing the muscular volume from a combination of two to five slices has been evaluated. The five-slices model prediction error (in % of the real volume from 3D reconstruction) ranged from 6 % (knee flexors and extensors and spine flexors) to 11 % (spine extensors). CONCLUSION Spinopelvic muscles' values for a reference population have been reported. A new model predicting the muscles' volumes from a reduced set of MRI slices is proposed. While this model still needs to be validated on other populations, the current study appears promising for clinical use to determine, quantitatively, the muscular degradation.
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Affiliation(s)
- Celia Amabile
- Arts et Metiers ParisTech, LBM/Institut de Biomécanique Humaine Georges Charpak, 151 Boulevard de l'Hopital, 75013, Paris, France.
- Spine Service, Hospital for Special Surgery, 535 East 70th Street, Belaire 4-E, New York, NY, 10021, USA.
| | - Bertrand Moal
- Spine Service, Hospital for Special Surgery, 535 East 70th Street, Belaire 4-E, New York, NY, 10021, USA
| | - Oussama Arous Chtara
- Arts et Metiers ParisTech, LBM/Institut de Biomécanique Humaine Georges Charpak, 151 Boulevard de l'Hopital, 75013, Paris, France
| | - Helene Pillet
- Arts et Metiers ParisTech, LBM/Institut de Biomécanique Humaine Georges Charpak, 151 Boulevard de l'Hopital, 75013, Paris, France
| | - Jose G Raya
- Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, New York, NY, USA
| | - Antoine Iannessi
- Department of Radiology, Centre Antoine Lacassagne, Nice, France
| | - Wafa Skalli
- Arts et Metiers ParisTech, LBM/Institut de Biomécanique Humaine Georges Charpak, 151 Boulevard de l'Hopital, 75013, Paris, France.
| | - Virginie Lafage
- Spine Service, Hospital for Special Surgery, 535 East 70th Street, Belaire 4-E, New York, NY, 10021, USA
| | - Nicolas Bronsard
- Department of Orthopaedic, Trauma, and Spine Surgery, Institut Universitaire de l'appareil Locomoteur et du Sport, Hôpital Pasteur 2, CHU de Nice, Nice, France
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Evaluation of a simple method for determining muscle volume in vivo. J Biomech 2016; 49:1973-1975. [DOI: 10.1016/j.jbiomech.2016.04.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/14/2016] [Accepted: 04/21/2016] [Indexed: 11/23/2022]
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Mersmann F, Bohm S, Schroll A, Boeth H, Duda G, Arampatzis A. Muscle shape consistency and muscle volume prediction of thigh muscles. Scand J Med Sci Sports 2014; 25:e208-13. [DOI: 10.1111/sms.12285] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2014] [Indexed: 01/25/2023]
Affiliation(s)
- F. Mersmann
- Department of Training and Movement Sciences; Humboldt-Universität zu Berlin; Berlin Germany
| | - S. Bohm
- Department of Training and Movement Sciences; Humboldt-Universität zu Berlin; Berlin Germany
| | - A. Schroll
- Department of Training and Movement Sciences; Humboldt-Universität zu Berlin; Berlin Germany
| | - H. Boeth
- Julius Wolff Institute; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - G. Duda
- Julius Wolff Institute; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - A. Arampatzis
- Department of Training and Movement Sciences; Humboldt-Universität zu Berlin; Berlin Germany
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