1
|
Belghith K, Zidi M, Fedele JM, Bou-Serhal R, Maktouf W. Quantifying Plantar Flexor Muscles Stiffness During Passive and Active Force Generation Using Shear Wave Elastography in Individuals With Chronic Stroke. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:735-742. [PMID: 38378402 DOI: 10.1016/j.ultrasmedbio.2024.01.072] [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: 10/13/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/22/2024]
Abstract
OBJECTIVES This study aims to investigate the mechanical properties of paretic and healthy plantar flexor muscles and assesses the spatial distribution of stiffness between the gastrocnemius medialis (GM) and lateralis (GL) during active force generation. METHODS Shear wave elastography measurements were conducted on a control group (CNT, n=14; age=59.9±10.6 years; BMI=24.5±2.5 kg/m2) and a stroke survivor group (SSG, n=14; age=63.2±9.6 years; BMI=23.2±2.8 kg/m2). Shear modulus within the GM and GL was obtained during passive ankle mobilization at various angles of dorsiflexion (P0 =0°; P1=10°; P2=20°; P3=-20° and P4=-30°) and during different levels (30%, 50%, 70%, 100%) of maximal voluntary contraction (MVC). Muscle activations of GM, GL, soleus and tibialis anterior were also evaluated. RESULTS The results revealed a significant increase in passive stiffness within the paretic plantar flexor muscles under high tension during passive mobilization (p<0.05). Yet, during submaximal and maximal MVC, the paretic plantar flexors exhibited decreased active stiffness levels (p<0.05). A notable discrepancy was found between the stiffness of the GM and GL, with the GM demonstrating greater stiffness from 0° of dorsiflexion in the SSG (p<0.05), and from 10° of dorsiflexion in the CNT (p<0.05). No significant difference in stiffness was observed between the GM and GL muscles during active condition. CONCLUSION Stroke affects the mechanical properties differently depending on the state of muscle activation. Notably, the distribution of stiffness among synergistic plantar flexor muscles varied in passive condition, while remaining consistent in active condition.
Collapse
Affiliation(s)
- Kalthoum Belghith
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France; CLINEA group, Clinique du Parc de Belleville, Paris, France
| | - Mustapha Zidi
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France
| | | | | | - Wael Maktouf
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France.
| |
Collapse
|
2
|
Belghith K, Zidi M, Fedele JM, Bou-Serhal R, Maktouf W. Dataset of Inter and intramuscular variability of stiffness in paretic individuals during prone and standing positions. Data Brief 2024; 53:110190. [PMID: 38406242 PMCID: PMC10884746 DOI: 10.1016/j.dib.2024.110190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/27/2024] Open
Abstract
Several studies have investigated muscle rigidity using SWE. However, the assessments may not consider the most affected regions within the same muscle tissue nor the intramuscular variability of rigidity between muscles of the same muscle group, e.g., plantar flexors. The data presented in this article aimed to explore the inter-and intramuscular variability of plantar flexors stiffness during prone and standing positions at different muscle lengths in healthy and paretic individuals. Shear wave ultrasound images were acquired for the three plantar flexor muscles (gastrocnemius medialis [GM], gastrocnemius lateralis [GL], and soleus [SOL]) in two positions: prone and standing. The imaging was conducted at various dorsiflexion angles (0°, 10°, and 20°), and measurements were taken at different proximo-distal regions within each muscle. This data set allowed us to highlight the impact of stroke on mechanical properties that varies depending on whether ankle muscles are in an active or passive state during dorsiflexion. Additionally, the modification of the ankle muscle state influences the distribution of stiffness both within and between the plantar flexors.
Collapse
Affiliation(s)
- Kalthoum Belghith
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Medicine, Creteil, France
- CLINEA clinics, Clinique du Parc de Belleville, Paris, France
| | - Mustapha Zidi
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Medicine, Creteil, France
| | | | | | - Wael Maktouf
- Bioengineering, Tissues and Neuroplasticity, UR 7377, University of Paris-Est Creteil, Faculty of Medicine, Creteil, France
| |
Collapse
|
3
|
Belghith K, Zidi M, Fedele JM, Bou Serhal R, Maktouf W. Spatial distribution of stiffness between and within muscles in paretic and healthy individuals during prone and standing positions. J Biomech 2023; 161:111838. [PMID: 37922613 DOI: 10.1016/j.jbiomech.2023.111838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 09/08/2023] [Accepted: 10/13/2023] [Indexed: 11/07/2023]
Abstract
This study investigated the inter- and intramuscular variability of plantar flexors stiffness during prone and standing positions at different muscle lengths in healthy and paretic individuals. To access tissue stiffness, shear wave elastography (SWE) measurements were carried out on two groups: control group (CG; n=14; age 43.9±9.6 years; body mass index [BMI]=24.5±2.5 kg/m2) and stroke survivor group (SSG; n=14; age 43.9±9.6 years; BMI=24.5±2.5 kg/m2). Shear Modulus (μ, kPa) within three plantar flexors (the gastrocnemius medialis [GM], gastrocnemius lateralis [GL], and soleus [SOL]) was obtained during two conditions: prone and standing position, at different angles of dorsiflexion (0°, 10°, and 20°). Measurements were also performed in different proximo-distal regions of each muscle. Muscle activation of the GM, GL, SOL, and tibialis anterior were evaluated during the two conditions. Results showed a high spatial stiffness variability between and within plantar flexors during dorsiflexion. The highest stiffness was observed in the GM, especially in the distal region at 20° in healthy and paretic muscles. In the prone position, the paretic muscle exhibits greater stiffness compared to the healthy muscle (p < 0.05). In contrast, in the standing position, an increase of stiffness in the healthy muscle compared to the paretic muscle was observed (p < 0.05). Thus, mechanical properties are differently affected by stroke depending on active and passive states of ankle muscles during dorsiflexion. In addition, the modification of ankle muscle state change stiffness distribution between and within plantar flexors.
Collapse
Affiliation(s)
- Kalthoum Belghith
- Bioengineering, Tissues and Neuroplasticity, ER 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France; CLINEA group, Clinique du Parc de Belleville, Paris, France.
| | - Mustapha Zidi
- Bioengineering, Tissues and Neuroplasticity, ER 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France.
| | | | | | - Wael Maktouf
- Bioengineering, Tissues and Neuroplasticity, ER 7377, University of Paris-Est Creteil, Faculty of Health/EPISEN, Creteil, France.
| |
Collapse
|
4
|
Ateş F, Marquetand J, Zimmer M. Detecting age-related changes in skeletal muscle mechanics using ultrasound shear wave elastography. Sci Rep 2023; 13:20062. [PMID: 37974024 PMCID: PMC10654699 DOI: 10.1038/s41598-023-47468-z] [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: 05/23/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023] Open
Abstract
Aging leads to a decline in muscle mass and force-generating capacity. Ultrasound shear wave elastography (SWE) is a non-invasive method to capture age-related muscular adaptation. This study assessed biceps brachii muscle (BB) mechanics, hypothesizing that shear elastic modulus reflects (i) passive muscle force increase imposed by length change, (ii) activation-dependent mechanical changes, and (iii) differences between older and younger individuals. Fourteen healthy volunteers aged 60-80 participated. Shear elastic modulus, surface electromyography, and elbow torque were measured at five elbow positions in passive and active states. Data collected from young adults aged 20-40 were compared. The BB passive shear elastic modulus increased from flexion to extension, with the older group exhibiting up to 52.58% higher values. Maximum elbow flexion torque decreased in extended positions, with the older group 23.67% weaker. Significant effects of elbow angle, activity level, and age on total and active shear elastic modulus were found during submaximal contractions. The older group had 20.25% lower active shear elastic modulus at 25% maximum voluntary contraction. SWE effectively quantified passive and activation-dependent BB mechanics, detecting age-related alterations at rest and during low-level activities. These findings suggest shear elastic modulus as a promising biomarker for identifying altered muscle mechanics in aging.
Collapse
Affiliation(s)
- Filiz Ateş
- Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Stuttgart, Germany.
| | - Justus Marquetand
- Department of Epileptology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- Department of Neural Dynamics and Magnetoencephalography, Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- MEG-Center, University of Tübingen, Tübingen, Germany
| | - Manuela Zimmer
- Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Stuttgart, Germany
| |
Collapse
|
5
|
Zimmer M, Kleiser B, Marquetand J, Ates F. Characterization of Muscle Weakness Due to Myasthenia Gravis Using Shear Wave Elastography. Diagnostics (Basel) 2023; 13:diagnostics13061108. [PMID: 36980415 PMCID: PMC10047651 DOI: 10.3390/diagnostics13061108] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023] Open
Abstract
Myasthenia gravis (MG) is often accompanied with muscle weakness; however, little is known about mechanical adaptions of the affected muscles. As the latter can be assessed using ultrasound shear wave elastography (SWE), this study characterizes the biceps brachii muscle of 11 patients with MG and compares them with that of 14 healthy volunteers. Simultaneous SWE, elbow torque and surface electromyography measurements were performed during rest, maximal voluntary contraction (MVC) and submaximal isometric contractions (up to 25%, 50% and 75% MVC) at different elbow angles from flexion to extension. We found that, with increasing elbow angle, maximum elbow torque decreased (p < 0.001), whereas muscle stiffness increased during rest (p = 0.001), MVC (p = 0.004) and submaximal contractions (p < 0.001). Muscle stiffness increased with increasing contraction intensities during submaximal contractions (p < 0.001). In comparison to the healthy cohort, muscle stiffness of MG patients was 2.1 times higher at rest (p < 0.001) but 8.93% lower in active state (75% MVC, p = 0.044). We conclude that (i) increased muscle stiffness shown by SWE during rest might be an indicator of MG, (ii) SWE reflects muscle weakness and (iii) SWE can be used to characterize MG muscle.
Collapse
Affiliation(s)
- Manuela Zimmer
- Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Pfaffenwaldring 27, 70569 Stuttgart, Germany
- Correspondence: ; Tel.: +49-(711)-685-69528
| | - Benedict Kleiser
- Department of Epileptology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
| | - Justus Marquetand
- Department of Epileptology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
- Department of Neural Dynamics and Magnetoencephalography, Hertie-Institute for Clinical Brain Research, University of Tübingen, Otfried-Müller-Str. 25, 72076 Tübingen, Germany
- MEG-Center, University of Tübingen, Otfried-Müller-Str. 47, 72076 Tübingen, Germany
| | - Filiz Ates
- Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Pfaffenwaldring 27, 70569 Stuttgart, Germany
| |
Collapse
|
6
|
Boulard C, Gautheron V, Lapole T. Acute passive stretching has no effect on gastrocnemius medialis stiffness in children with unilateral cerebral palsy. Eur J Appl Physiol 2023; 123:467-477. [PMID: 36318307 DOI: 10.1007/s00421-022-05046-7] [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: 03/29/2022] [Accepted: 09/07/2022] [Indexed: 11/07/2022]
Abstract
PURPOSE The aim of this study was to investigate the effects of an acute high-intensity, long-duration passive stretching session of the plantar flexor muscles, on maximal dorsiflexion (DF) angle and passive stiffness at both ankle joint and gastrocnemius medialis (GM) muscle levels in children with unilateral cerebral palsy (CP). METHODS 13 children [mean age: 10 years 6 months, gross motor function classification system (GMFCS): I] with unilateral CP underwent a 5 min passive stretching session at 80% of maximal DF angle. Changes in maximal DF angle, slack angle, passive ankle joint and GM muscle stiffness from PRE- to POST-intervention were determined during passive ankle mobilization performed on a dynamometer coupled with shear wave elastography measurements (i.e., ultrasound) of the GM muscle. RESULTS Maximal DF angle and maximal passive torque were increased by 6.3° (P < 0.001; + 50.4%; 95% CI 59.9, 49.9) and 4.2 Nm (P < 0.01; + 38.9%; 95% CI 47.7, 30.1), respectively. Passive ankle joint stiffness remained unchanged (P = 0.9; 0%; 95% CI 10.6, - 10.6). GM muscle shear modulus was unchanged at maximal DF angle (P = 0.1; + 34.5%; 95% CI 44.7, 24.7) and at maximal common torque (P = 0.5; - 4%; 95% CI - 3.7, - 4.3), while it was decreased at maximal common angle (P = 0.021; - 35%; 95% CI - 11.4, - 58.5). GM slack angle was shifted in a more dorsiflexed position (P = 0.02; + 20.3%; 95% CI 22.6, 18). CONCLUSION Increased maximal DF angle can be obtained in the paretic leg in children with unilateral CP after an acute bout of stretching using controlled parameters without changes in passive stiffness at joint and GM muscle levels. CLINICAL TRIAL NUMBER NCT03714269.
Collapse
Affiliation(s)
- Clément Boulard
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France. .,Department of Pediatrics Physical Medicine and Rehabilitation, Faculty of Medicine, University Hospital of Saint-Etienne, Saint-Etienne, France.
| | - Vincent Gautheron
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France
| | - Thomas Lapole
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France
| |
Collapse
|
7
|
Li J, Zhong J, Wang N. A multimodal human-robot sign language interaction framework applied in social robots. Front Neurosci 2023; 17:1168888. [PMID: 37113147 PMCID: PMC10126358 DOI: 10.3389/fnins.2023.1168888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Deaf-mutes face many difficulties in daily interactions with hearing people through spoken language. Sign language is an important way of expression and communication for deaf-mutes. Therefore, breaking the communication barrier between the deaf-mute and hearing communities is significant for facilitating their integration into society. To help them integrate into social life better, we propose a multimodal Chinese sign language (CSL) gesture interaction framework based on social robots. The CSL gesture information including both static and dynamic gestures is captured from two different modal sensors. A wearable Myo armband and a Leap Motion sensor are used to collect human arm surface electromyography (sEMG) signals and hand 3D vectors, respectively. Two modalities of gesture datasets are preprocessed and fused to improve the recognition accuracy and to reduce the processing time cost of the network before sending it to the classifier. Since the input datasets of the proposed framework are temporal sequence gestures, the long-short term memory recurrent neural network is used to classify these input sequences. Comparative experiments are performed on an NAO robot to test our method. Moreover, our method can effectively improve CSL gesture recognition accuracy, which has potential applications in a variety of gesture interaction scenarios not only in social robots.
Collapse
Affiliation(s)
- Jie Li
- School of Artificial Intelligence, Chongqing Technology and Business University, Chongqing, China
| | - Junpei Zhong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Ning Wang
- Bristol Robotics Laboratory, University of the West of England, Bristol, United Kingdom
- *Correspondence: Ning Wang,
| |
Collapse
|
8
|
Diong J, Kishimoto KC, Butler JE, Héroux ME. Muscle electromyographic activity normalized to maximal muscle activity, not to Mmax, better represents voluntary activation. PLoS One 2022; 17:e0277947. [PMID: 36409688 PMCID: PMC9678282 DOI: 10.1371/journal.pone.0277947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 11/07/2022] [Indexed: 11/22/2022] Open
Abstract
In human applied physiology studies, the amplitude of recorded muscle electromyographic activity (EMG) is often normalized to maximal EMG recorded during a maximal voluntary contraction. When maximal contractions cannot be reliably obtained (e.g. in people with muscle paralysis, anterior cruciate ligament injury, or arthritis), EMG is sometimes normalized to the maximal compound muscle action potiential evoked by stimulation, the Mmax. However, it is not known how these two methods of normalization affect the conclusions and comparability of studies. To address this limitation, we investigated the relationship between voluntary muscle activation and EMG normalized either to maximal EMG or to Mmax. Twenty-five able-bodied adults performed voluntary isometric ankle plantarflexion contractions to a range of percentages of maximal voluntary torque. Ankle torque, plantarflexor muscle EMG, and voluntary muscle activation measured by twitch interpolation were recorded. EMG recorded at each contraction intensity was normalized to maximal EMG or to Mmax for each plantarflexor muscle, and the relationship between the two normalization approaches quantified. A slope >1 indicated EMG amplitude normalized to maximal EMG (vertical axis) was greater than EMG normalized to Mmax (horizontal axis). Mean estimates of the slopes were large and had moderate precision: soleus 8.7 (95% CI 6.9 to 11.0), medial gastrocnemius 13.4 (10.5 to 17.0), lateral gastrocnemius 11.4 (9.4 to 14.0). This indicates EMG normalized to Mmax is approximately eleven times smaller than EMG normalized to maximal EMG. Normalization to maximal EMG gave closer approximations to the level of voluntary muscle activation assessed by twitch interpolation.
Collapse
Affiliation(s)
- Joanna Diong
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia
- * E-mail:
| | - Kenzo C. Kishimoto
- School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
| | - Jane E. Butler
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia
- School of Medical Sciences, University of New South Wales, Kensington, New South Wales, Australia
| | - Martin E. Héroux
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia
- School of Medical Sciences, University of New South Wales, Kensington, New South Wales, Australia
| |
Collapse
|
9
|
Bouvier J, Martin C, Fouré A. Effect of hip and knee joint angles on resting hamstring muscles rigidity in men and women. Eur J Appl Physiol 2022; 122:2375-2383. [PMID: 35945385 DOI: 10.1007/s00421-022-05023-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Hamstring muscle strains are one of the most common injuries in sports practice, for both men and women. However, sex disparities in the rate of muscle injuries have been observed. As these muscular injuries usually occur at long muscle length, this study aimed to determine the effect of sex on hamstring muscles' resting rigidity under different stretching conditions. METHODS The shear wave speed (SWS) of resting hamstring muscles was measured in 12 men and 12 women in different hip and knee positions (hip extended with knee flexed, hip flexed with knee extended, both joints extended and both joints flexed). RESULTS Combining all the positions, the SWS of the semitendinosus was higher in men than in women (2.96 vs. 2.71 m.s-1). Regardless of sex, a significant rise in SWS was systematically observed when the semimembranosus was stretched (1.86, 2.37, 2.76 and 4.39 m.s-1) but it was neither the case for the semitendinosus (p = 0.82) nor for the biceps femoris (p = 0.50). Finally, differences in SWS among the hamstring muscles were only observed at the longest muscle length, with greater SWS values for the semimembranosus and semitendinosus in comparison with the biceps femoris (4.39 and 4.12 vs. 3.38 m.s-1 respectively). CONCLUSION In conclusion, a sex difference was only observed in the resting semitendinosus rigidity. Independently of sex, the increase in resting hamstring muscles SWS with stretch was muscle specific.
Collapse
Affiliation(s)
- Jérémie Bouvier
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France
| | - Cyril Martin
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France
| | - Alexandre Fouré
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France.
| |
Collapse
|
10
|
Fouré A, Besson T, Stauffer E, Skinner SC, Bouvier J, Féasson L, Connes P, Hautier CA, Millet GY. Sex-related differences and effects of short and long trail running races on resting muscle-tendon mechanical properties. Scand J Med Sci Sports 2022; 32:1477-1492. [PMID: 35730335 DOI: 10.1111/sms.14203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 03/13/2022] [Accepted: 06/13/2022] [Indexed: 11/29/2022]
Abstract
The purpose of the study was to assess sex-related differences in resting mechanical properties and adaptations of skeletal muscles and tendons in response to trail running races of different distances using multi-site shear wave elastography assessments of the lower limb, force capacity and blood analyses. Sex differences in resting mechanical properties of knee extensor and plantar flexor muscles and tendons were characterized by shear wave velocity measurements in healthy males (N=42) and females (N=25) trained in long distance running. Effects of running distance on muscle and tendon properties were assessed in short (<60km, N=23) vs. long (>100km, N=26) distance races. Changes in isometric maximal voluntary contraction torque, serum C-reactive protein and creatine kinase activity were also quantified after running races. Higher shear wave velocity of relaxed triceps surae muscle was detected in females as compared to males before running races (+4.8%, p=0.006), but the significant increases in triceps surae muscle group (+7.0%, p=0.001) and patellar tendon shear wave velocity (+15.4%, p=0.001) after short-distance races were independent of sex. A significant decrease in triceps surae muscle shear wave velocity was found after long-distance races in the whole experimental population (-3.1%, p=0.049). Post-races increase in C-reactive protein and creatine kinase activity were significantly correlated to the relative decreases in triceps surae and quadriceps femoris skeletal muscle shear wave velocity (ρ=-0.56, p=0.001 and ρ=-0.51, p=0.001, respectively). Resting mechanical properties of muscles and tendons are affected by sex, and that adaptations to trail races are related to running distance. Exercise-induced changes in resting skeletal muscle mechanical properties are associated with enhanced indirect markers of inflammation and muscle damage.
Collapse
Affiliation(s)
- Alexandre Fouré
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France
| | - Thibault Besson
- Université Jean Monnet de Saint-Etienne, Université de Lyon, Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Campus Santé Innovations-IRMIS, Saint Priest en Jarez, France
| | - Emeric Stauffer
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France.,Hospices Civils de Lyon, Exploration Fonctionnelle Respiratoire, Médecine du Sport et de l'Activité Physique, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Sarah C Skinner
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Jérémie Bouvier
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France
| | - Léonard Féasson
- Université Jean Monnet de Saint-Etienne, Université de Lyon, Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Campus Santé Innovations-IRMIS, Saint Priest en Jarez, France.,CHU St Etienne, Unité de Myologie, Centre Référent Maladies Neuromusculaires Rares, Euro-NmD, Saint-Etienne, France
| | - Philippe Connes
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Institut Universitaire de France, Paris, France
| | - Christophe A Hautier
- Univ Lyon, Université Claude Bernard Lyon 1 (UCBL1), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Villeurbanne, France
| | - Guillaume Y Millet
- Université Jean Monnet de Saint-Etienne, Université de Lyon, Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Campus Santé Innovations-IRMIS, Saint Priest en Jarez, France.,Institut Universitaire de France, Paris, France
| |
Collapse
|
11
|
Pinel S, Kelp NY, Bugeja JM, Bolsterlee B, Hug F, Dick TJM. Quantity versus quality: Age-related differences in muscle volume, intramuscular fat, and mechanical properties in the triceps surae. Exp Gerontol 2021; 156:111594. [PMID: 34673171 DOI: 10.1016/j.exger.2021.111594] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 12/23/2022]
Abstract
With aging comes reductions in the quality and size of skeletal muscle. These changes influence the force-generating capacity of skeletal muscle and contribute to movement deficits that accompany aging. Although declines in strength remain a significant barrier to mobility in older adults, the association between age-related changes in muscle structure and function remain unresolved. In this study, we compared age-related differences in (i) muscle volume and architecture, (ii) the quantity and distribution of intramuscular fat, and (iii) muscle shear modulus (an index of stiffness) in the triceps surae in 21 younger (24.6 ± 4.3 years) and 15 older (70.4 ± 2.4 years) healthy adults. Additionally, we explored the relationship between muscle volume, architecture, intramuscular fat and ankle plantar flexion strength in young and older adults. Magnetic resonance imaging was used to determine muscle volume and intramuscular fat content. B-mode ultrasound was used to quantify muscle architecture, shear-wave elastography was used to measure shear modulus, and ankle strength was measured during maximal isometric plantar flexion contractions. We found that older adults displayed higher levels of intramuscular fat yet similar muscle volumes in the medial (MG) and lateral gastrocnemius (LG) and soleus, compared to younger adults. These age-related higher levels of intramuscular fat were associated with lower muscle shear modulus in the LG and MG. We also found that muscle physiological cross-sectional area (PCSA) that accounted for age-associated differences in intramuscular fat showed a modest increase in its association with ankle strength compared to PCSA that did not account for fat content. This highlights that skeletal muscle fat infiltration plays a role in age-related strength deficits, but does not fully explain the age-related loss in muscle strength, suggesting that other factors play a more significant role.
Collapse
Affiliation(s)
- Sabrina Pinel
- The University of Queensland, School of Biomedical Sciences, Brisbane, Queensland, Australia; The University of Groningen, Faculty of Medicine, Groningen, The Netherlands
| | - Nicole Y Kelp
- The University of Queensland, School of Biomedical Sciences, Brisbane, Queensland, Australia
| | - Jessica M Bugeja
- The University of Queensland, School of Information Technology and Electrical Engineering, Brisbane, Queensland, Australia; Australian e-Health Research Centre, CSIRO Health and Biosecurity, Brisbane, Queensland, Australia
| | - Bart Bolsterlee
- Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; University of New South Wales, Randwick, New South Wales, Australia; Queensland University of Technology, School of Mechanical, Medical and Process Engineering, Brisbane, Queensland, Australia
| | - François Hug
- The University of Queensland, School of Biomedical Sciences, Brisbane, Queensland, Australia; University of New South Wales, Graduate School of Biomedical Engineering, Randwick, New South Wales, Australia; Institut Universitaire de France (IUF), Paris, France; Université Côte d'Azur, LAMHESS, Nice, France
| | - Taylor J M Dick
- The University of Queensland, School of Biomedical Sciences, Brisbane, Queensland, Australia.
| |
Collapse
|
12
|
Héroux ME, Whitaker RM, Maas H, Herbert RD. Negligible epimuscular myofascial force transmission between the human rectus femoris and vastus lateralis muscles in passive conditions. Eur J Appl Physiol 2021; 121:3369-3377. [PMID: 34468860 DOI: 10.1007/s00421-021-04801-6] [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: 05/13/2021] [Accepted: 08/23/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE There have been contradictory reports of the effects of epimuscular myofascial force transmission in humans. This study investigated the transmission of myofascial force to the human vastus lateralis muscle by determining whether vastus lateralis slack angle changed with hip angle. Since the distance between the origin and insertion of the vastus lateralis muscle does not change when hip angle changes, any change in vastus lateralis slack angle with hip position can be attributed to epimuscular myofascial force transmission. METHODS Nineteen young adults were tested in hip flexed ([Formula: see text]) and neutral ([Formula: see text]) positions. Ultrasound images of the vastus lateralis muscle were obtained as the knee was passively flexed at [Formula: see text]/s. The knee angle at which vastus lateralis muscle fascicles began to lengthen was used to identify muscle slack angle. RESULTS Overall, there was a negligible effect of hip position on vastus lateralis slack angle ([Formula: see text] [[Formula: see text] to 1.9]; mean [95% confidence interval]). However, a small and variable effect was noted in 3/19 participants. CONCLUSION This result indicates that, over the range of joint angles tested here, there is little or no epimuscular myofascial force transmission between the vastus lateralis muscle and neighbouring bi-articular structures under passive conditions. More broadly, this result provides additional evidence that epimuscular myofascial force transmission tends to be small and variable under passive conditions in healthy human muscle.
Collapse
Affiliation(s)
- Martin E Héroux
- Neuroscience Research Australia, Margaret Ainsworth Building, Sydney, NSW, 2031, Australia. .,University of New South Wales, 2031, Randwick, NSW, Australia.
| | - Rachelle M Whitaker
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Huub Maas
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Robert D Herbert
- Neuroscience Research Australia, Margaret Ainsworth Building, Sydney, NSW, 2031, Australia.,University of New South Wales, 2031, Randwick, NSW, Australia
| |
Collapse
|
13
|
Mechanical properties of ankle joint and gastrocnemius muscle in spastic children with unilateral cerebral palsy measured with shear wave elastography. J Biomech 2021; 124:110502. [PMID: 34126561 DOI: 10.1016/j.jbiomech.2021.110502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 11/22/2022]
Abstract
The aim of this study was to describe passive mechanical and morphological properties of the ankle joint and gastrocnemius medialis (GM) muscle in paretic and contralateral legs in highly functional children with unilateral cerebral palsy (UCP) using shear wave elastography (SWE). SWE measurements on the GM muscle were performed in both paretic and contralateral legs during passive ankle dorsiflexion using a dynamometer in 11 children (mean age: 10 years 6 months) with UCP. Torque-angle and shear modulus-angle relationships were fitted using an exponential model to determine passive ankle joint and GM muscle stiffness respectively. Based on shear-modulus-angle relationship, slack angle and shear modulus of GM muscle were compared between legs. GM and Achilles tendon length were determined at rest using ultrasonography. No significant difference was found between legs for passive ankle joint (p = 0.26; 11.2%; 95 %CI: 31.9, -9.4) and GM muscle passive stiffness (p = 0.62; -4.4%; 95 %CI: 14.7, -23.4). GM shear modulus at a common angle was significantly higher on the paretic leg (p = 0.02; +56.5%; 95 %CI: 100.5, 12.6). GM slack angle on the paretic leg was significantly shifted to a more plantarflexed position (p = 0.04; +25.5%; 95 %CI: 49.7, 1.3) and this was associated with a non-significant lower muscle length compared to the contralateral leg (p = 0.05; -4.5%; 95 %CI: -0.4, -8.7). Increased passive tension on the paretic leg when compared to the contralateral one may be explained in large part by muscle shortening. The role of altered mechanical properties remains unknown.
Collapse
|
14
|
Boulard C, Mathevon L, Arnaudeau LF, Gautheron V, Calmels P. Reliability of Shear Wave Elastography and Ultrasound Measurement in Children with Unilateral Spastic Cerebral Palsy. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1204-1211. [PMID: 33579563 DOI: 10.1016/j.ultrasmedbio.2021.01.013] [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: 01/15/2020] [Revised: 01/06/2021] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
In clinical practice, few data exist on the feasibility of performing reliable shear wave elastography (SWE) and ultrasonography (US) measurements in spastic muscles of children with cerebral palsy (CP). Ten children with unilateral CP took part in SWE and US assessment of the tibialis anterior and medialis gastrocnemius muscles during two sessions separated by a 1-wk interval. Intra- and inter-investigator reliability of shear modulus (µ) and muscle thickness (MT) measurements, at neutral and maximal dorsiflexion angles on both legs, was assessed by two investigators with different levels of experience. Reliability was assessed with the coefficient of variation (CV), standard error of measurement and intra-class correlation coefficient (ICC). Reliability of the µ measurement was insufficient, regardless of angle position (CV >10% and >20% for neutral and maximal dorsiflexion angles, respectively). The intra- and inter-investigator reliability of MT measurements was good (CV >10%, ICC >0.74) for both muscles in both legs. SWE measurements must be performed using a rigorous standardized protocol while MT should be considered an important parameter to monitor change in muscle morphology.
Collapse
Affiliation(s)
- Clément Boulard
- Université Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France; Pediatric and Adult Units, Department of Physical Medicine and Rehabilitation, University Hospital of Saint-Etienne, Saint-Etienne, France.
| | - Laure Mathevon
- Université Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France; Centre Médico-Chirurgical de Réadaptation des Massues, Lyon, France
| | - Louis Florian Arnaudeau
- Université Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France
| | - Vincent Gautheron
- Université Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France; Pediatric and Adult Units, Department of Physical Medicine and Rehabilitation, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Paul Calmels
- Université Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France; Pediatric and Adult Units, Department of Physical Medicine and Rehabilitation, University Hospital of Saint-Etienne, Saint-Etienne, France
| |
Collapse
|
15
|
Kishimoto KC, Héroux ME, Gandevia SC, Butler JE, Diong J. Estimation of maximal muscle electromyographic activity from the relationship between muscle activity and voluntary activation. J Appl Physiol (1985) 2021; 130:1352-1361. [PMID: 33600280 DOI: 10.1152/japplphysiol.00557.2020] [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] [Indexed: 12/16/2022] Open
Abstract
Maximal muscle activity recorded with surface electromyography (EMG) is an important neurophysiological measure. It is frequently used to normalize EMG activity recorded during passive or active movement. However, the true maximal muscle activity cannot be determined in people with impaired capacity to voluntarily activate their muscles. Here, we determined whether maximal muscle activity can be estimated from muscle activity produced during submaximal voluntary activation. Twenty-five able-bodied adults (18 males, mean age 29 yr, range 19-64 yr) participated in the study. Participants were seated with the knee flexed 90° and the ankle in 5° of dorsiflexion from neutral. Participants performed isometric voluntary ankle plantarflexion contractions at target torques, in random order: 1, 5, 10, 15, 25, 50, 75, 90, 95, and 100% of maximal voluntary torque. Ankle torque, muscle activity in soleus, medial and lateral gastrocnemius muscles, and voluntary muscle activation determined using twitch interpolation were recorded. There was a strong loge-linear relationship between measures of muscle activation and muscle activity in all three muscles tested. Linear mixed models were fitted to muscle activation and loge-transformed EMG data. Each 1% increase in muscle activation increased muscle activity by a mean of 0.027 ln(mV) [95% confidence interval (CI) 0.025 to 0.029 ln(mV)] in soleus, 0.025 ln(mV) [0.022 to 0.028 ln(mV)] in medial gastrocnemius, and 0.028 ln(mV) [0.026 to 0.030 ln(mV)] in lateral gastrocnemius. The relationship between voluntary muscle activation and muscle activity can be described with simple mathematical functions. In future, it should be possible to normalize recorded muscle activity using these types of functions.NEW & NOTEWORTHY Muscle activity is often normalized to maximal muscle activity; however, it is difficult to obtain accurate measures of maximal muscle activity in people with impaired voluntary neural drive. We determined the relationship between voluntary muscle activation and plantarflexor muscle activity across a broad range of muscle activation values in able-bodied people. The relationship between voluntary muscle activation and muscle activity can be described with simple mathematical functions capable of estimating maximal muscle activity.
Collapse
Affiliation(s)
- Kenzo C Kishimoto
- Discipline of Physiotherapy, Faculty of Health Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Martin E Héroux
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia.,School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Simon C Gandevia
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia.,Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Jane E Butler
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia.,School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Joanna Diong
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia.,Discipline of Anatomy and Histology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
16
|
Umehara J, Nakamura M, Saeki J, Tanaka H, Yanase K, Fujita K, Yamagata M, Ichihashi N. Acute and Prolonged Effects of Stretching on Shear Modulus of the Pectoralis Minor Muscle. JOURNAL OF SPORTS SCIENCE AND MEDICINE 2021; 20:17-25. [PMID: 33707982 DOI: 10.52082/jssm.2021.17] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/23/2020] [Indexed: 12/17/2022]
Abstract
Increased muscle stiffness of the pectoralis minor (PMi) could deteriorate shoulder function. Stretching is useful for maintaining and improving muscle stiffness in rehabilitation and sport practice. However, the acute and prolonged effect of stretching on the PMi muscle stiffness is unclear due to limited methodology for assessing individual muscle stiffness. Using shear wave elastography, we explored the responses of shear modulus to stretching in the PMi over time. The first experiment (n = 20) aimed to clarify the acute change in the shear modulus during stretching. The shear modulus was measured at intervals of 30 s × 10 sets. The second experiment (n = 16) aimed to observe and compare the prolonged effect of different durations of stretching on the shear modulus. Short and long stretching duration groups underwent 30s × 1 set and 30s × 10 sets, respectively. The assessments of shear modulus were conducted before, immediately after, and at 5, 10, and 15 min post-stretching. In experiment I, the shear modulus decreased immediately after a bout (30 s) of stretching (p < 0.001, change: -2.3 kPa, effect size: r = 0.72) and further decreased after 3 repetitions (i.e., 90 s) of stretching (p = 0.03, change: -1.0 kPa, effect size: r = 0.53). In experiment II, the change in the shear modulus after stretching was greater in the long duration group than in the short duration group (p = 0.013, group mean difference: -2.5 kPa, partial η 2 = 0.36). The shear modulus of PMi decreased immediately after stretching, and stretching for a long duration was promising to maintain the decreased shear modulus. The acute and prolonged effects on the PMi shear modulus provide information relevant to minimum and persistent stretching time in rehabilitation and sport practice.
Collapse
Affiliation(s)
- Jun Umehara
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.,Center for Information and Neural Networks, National Institute of Information and Communications Technology, Osaka, Japan
| | - Masatoshi Nakamura
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Junya Saeki
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.,Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Hiroki Tanaka
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan.,Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
| | - Ko Yanase
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Kosuke Fujita
- Department of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - Momoko Yamagata
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.,Graduate School of Human Development and Environment, Kobe University, Hyogo, Japan
| | - Noriaki Ichihashi
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| |
Collapse
|
17
|
Portero P, Dogadov AA, Servière C, Quaine F. Surface Electromyography in Physiotherapist Educational Program in France: Enhancing Learning sEMG in Stretching Practice. Front Neurol 2020; 11:584304. [PMID: 33343490 PMCID: PMC7744717 DOI: 10.3389/fneur.2020.584304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/13/2020] [Indexed: 11/13/2022] Open
Abstract
Surface electromyography (sEMG) is a non-invasive method, which may be used in France by health practitioners without medical degree, such as physiotherapists, who are taught in Institutes of physiotherapy. However, very few hours are devoted to sEMG teaching in physiotherapist educational programs, especially in a form of practical work. In order to motivate using sEMG in physiotherapy to the students, we propose an example of sEMG practical work, applied to muscle stretching. Passive stretching exercises are often used by physiotherapists to maintain or improve range of motion. During a passive stretching session, subjects are given specific instructions to relax and not to activate their muscles during the procedure. In the proposed practical work, the sEMG is used to study the plantar flexor activation level during passive stretching. Therefore, this work may provide students with deeper understanding of physiology and biomechanics, trigger an interest in sEMG as a tool, and give knowledge about good sEMG practice, according to SENIAM and other recommendations. The integration of Institutes of physiotherapy in the University system may provide an opportunity to revisit the physiotherapist educational program and to provide students with more practical courses on sEMG application.
Collapse
Affiliation(s)
- Pierre Portero
- Université Paris-Est Créteil, Faculté de santé, équipe Bioingénierie, Tissus et Neuroplasticité (BIOTN), Créteil, France
| | - Anton A Dogadov
- Université Grenoble Alpes, Centre National de la Recherche Scientifique, Inria, Grenoble INP, GIPSA-lab, Grenoble, France.,Université Paris-Saclay, Centre National de la Recherche Scientifique, Paris-Saclay Institute of Neuroscience (NeuroPSI), Gif-sur-Yvette, France
| | - Christine Servière
- Université Grenoble Alpes, Centre National de la Recherche Scientifique, Inria, Grenoble INP, GIPSA-lab, Grenoble, France
| | - Franck Quaine
- Université Grenoble Alpes, Centre National de la Recherche Scientifique, Inria, Grenoble INP, GIPSA-lab, Grenoble, France
| |
Collapse
|
18
|
Andrade RJ, Freitas SR, Hug F, Le Sant G, Lacourpaille L, Gross R, Quillard JB, McNair PJ, Nordez A. Chronic effects of muscle and nerve-directed stretching on tissue mechanics. J Appl Physiol (1985) 2020; 129:1011-1023. [PMID: 32853116 DOI: 10.1152/japplphysiol.00239.2019] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Tissue-directed stretching interventions can preferentially load muscular or nonmuscular structures such as peripheral nerves. How these tissues adapt mechanically to long-term stretching is poorly understood. This randomized, single-blind, controlled study used ultrasonography and dynamometry to compare the effects of 12-wk nerve-directed and muscle-directed stretching programs versus control on maximal ankle dorsiflexion range of motion (ROM) and passive torque, shear wave velocity (SWV; an index of stiffness), and architecture of triceps surae and sciatic nerve. Sixty healthy adults were randomized to receive nerve-directed stretching, muscle-directed stretching, or no intervention (control). The muscle-directed protocol was designed to primarily stretch the plantar flexor muscle group, whereas the nerve-directed intervention targeted the sciatic nerve tract. Compared with the control group [mean; 95% confidence interval (CI)], muscle-directed intervention showed increased ROM (+7.3°; 95% CI: 4.1-10.5), decreased SWV of triceps surae (varied from -0.8 to -2.3 m/s across muscles), decreased passive torque (-6.8 N·m; 95% CI: -11.9 to -1.7), and greater gastrocnemius medialis fascicle length (+0.4 cm; 95% CI: 0.1-0.8). Muscle-directed intervention did not affect the SWV and size of sciatic nerve. Participants in the nerve-directed group showed a significant increase in ROM (+9.9°; 95% CI: 6.2-13.6) and a significant decrease in sciatic nerve SWV (> -1.8 m/s across nerve regions) compared with the control group. Nerve-directed intervention had no effect on the main outcomes at muscle and joint levels. These findings provide new insights into the long-term mechanical effects of stretching interventions and have relevance to clinical conditions where change in mechanical properties has occurred.NEW & NOTEWORTHY This study demonstrates that the mechanical properties of plantar flexor muscles and sciatic nerve can adapt mechanically to long-term stretching programs. Although interventions targeting muscular or nonmuscular structures are both effective at increasing maximal range of motion, the changes in tissue mechanical properties (stiffness) are specific to the structure being preferentially stretched by each program. We provide the first in vivo evidence that stiffness of peripheral nerves adapts to long-term loading stimuli using appropriate nerve-directed stretching.
Collapse
Affiliation(s)
- Ricardo J Andrade
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France.,School of Allied Health Sciences, Griffith University, Brisbane and Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Sandro R Freitas
- Universidade de Lisboa, Faculdade de Motricidade Humana, Centro Interdisciplinar de Estudo da Performance Humana (CIPER), Lisbon, Portugal
| | - François Hug
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France.,Institut Universitaire de France (IUF), Paris, France.,The University of Queensland, National Health and Medical Research Council (NHMRC) Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, Australia
| | - Guillaume Le Sant
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France.,School of Physiotherapy (IFM3R), Nantes, France
| | - Lilian Lacourpaille
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France
| | - Raphaël Gross
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France.,Gait Analysis Laboratory, Physical and Rehabilitation Medicine Department, University Hospital of Nantes, Nantes, France
| | - Jean-Baptiste Quillard
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France
| | - Peter J McNair
- Health and Rehabilitation Research Institute, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Antoine Nordez
- Laboratory of Movement, Interactions, Performance (EA 4334), Faculty of Sport Sciences, Nantes, University of Nantes, France.,Institut Universitaire de France (IUF), Paris, France.,Health and Rehabilitation Research Institute, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| |
Collapse
|
19
|
Boulard C, Gross R, Gautheron V, Lapole T. Room for improvement: metrological properties of passive muscle-tendon stiffness measures in children with cerebral palsy. Eur J Appl Physiol 2020; 120:1999-2000. [PMID: 32715392 DOI: 10.1007/s00421-020-04434-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Clément Boulard
- Laboratoire Interuniversitaire de Biologie de La Motricité, Univ Lyon, UJM Saint-Etienne, Bâtiment IRMIS, 10 rue de la Marandière, 42270, Saint Priest en Jarez, France. .,Service de Médecine Physique Et de Réadaptation Pédiatrique, CHU Saint-Étienne, Saint-Étienne, France.
| | - Raphaël Gross
- Movement-Interactions-Performance, CHU Nantes, MIP, Nantes Université, 4334, F-44000, Nantes, EA, France
| | - Vincent Gautheron
- Laboratoire Interuniversitaire de Biologie de La Motricité, Univ Lyon, UJM Saint-Etienne, Bâtiment IRMIS, 10 rue de la Marandière, 42270, Saint Priest en Jarez, France.,Service de Médecine Physique Et de Réadaptation Pédiatrique, CHU Saint-Étienne, Saint-Étienne, France
| | - Thomas Lapole
- Laboratoire Interuniversitaire de Biologie de La Motricité, Univ Lyon, UJM Saint-Etienne, Bâtiment IRMIS, 10 rue de la Marandière, 42270, Saint Priest en Jarez, France
| |
Collapse
|
20
|
Accurate measures of passive muscle-tendon stiffness in children with cerebral palsy are needed. Eur J Appl Physiol 2020; 120:1997-1998. [PMID: 32661770 DOI: 10.1007/s00421-020-04433-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
|
21
|
Effect of chronic stretching interventions on the mechanical properties of muscles in patients with stroke: A systematic review. Ann Phys Rehabil Med 2020; 63:222-229. [DOI: 10.1016/j.rehab.2019.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 12/02/2019] [Accepted: 12/14/2019] [Indexed: 01/01/2023]
|
22
|
Affiliation(s)
- Jing Luo
- School of Automation Science and Engineering, South China University of Technology, Guangzhou, People's Republic of China
- Department of Bioengineering, Imperial College of Science Technology and Medicine, London, UK
| | - Chao Liu
- Department of Robotics, LIRMM, UMR5506, University of Montpellier-CNRS, Montpellier, France
| | - Ying Feng
- School of Automation Science and Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Chenguang Yang
- Bristol Robotics Laboratory, University of the West of England, Bristol, UK
| |
Collapse
|
23
|
Naouma H, Pataky TC. A comparison of random-field-theory and false-discovery-rate inference results in the analysis of registered one-dimensional biomechanical datasets. PeerJ 2019; 7:e8189. [PMID: 31844582 PMCID: PMC6910120 DOI: 10.7717/peerj.8189] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/11/2019] [Indexed: 01/01/2023] Open
Abstract
Background The inflation of falsely rejected hypotheses associated with multiple hypothesis testing is seen as a threat to the knowledge base in the scientific literature. One of the most recently developed statistical constructs to deal with this problem is the false discovery rate (FDR), which aims to control the proportion of the falsely rejected null hypotheses among those that are rejected. FDR has been applied to a variety of problems, especially for the analysis of 3-D brain images in the field of Neuroimaging, where the predominant form of statistical inference involves the more conventional control of false positives, through Gaussian random field theory (RFT). In this study we considered FDR and RFT as alternative methods for handling multiple testing in the analysis of 1-D continuum data. The field of biomechanics has recently adopted RFT, but to our knowledge FDR has not previously been used to analyze 1-D biomechanical data, nor has there been a consideration of how FDR vs. RFT can affect biomechanical interpretations. Methods We reanalyzed a variety of publicly available experimental datasets to understand the characteristics which contribute to the convergence and divergence of RFT and FDR results. We also ran a variety of numerical simulations involving smooth, random Gaussian 1-D data, with and without true signal, to provide complementary explanations for the experimental results. Results Our results suggest that RFT and FDR thresholds (the critical test statistic value used to judge statistical significance) were qualitatively identical for many experimental datasets, but were highly dissimilar for others, involving non-trivial changes in data interpretation. Simulation results clarified that RFT and FDR thresholds converge as the true signal weakens and diverge when the signal is broad in terms of the proportion of the continuum size it occupies. Results also showed that, while sample size affected the relation between RFT and FDR results for small sample sizes (<15), this relation was stable for larger sample sizes, wherein only the nature of the true signal was important. Discussion RFT and FDR thresholds are both computationally efficient because both are parametric, but only FDR has the ability to adapt to the signal features of particular datasets, wherein the threshold lowers with signal strength for a gain in sensitivity. Additional advantages and limitations of these two techniques as discussed further. This article is accompanied by freely available software for implementing FDR analyses involving 1-D data and scripts to replicate our results.
Collapse
Affiliation(s)
- Hanaa Naouma
- Bioengineering Course/Graduate School of Science and Technology, Shinshu University, Ueda, Nagano, Japan.,Department of Human Health Sciences/Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Todd C Pataky
- Department of Human Health Sciences/Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
24
|
What causes increased passive stiffness of plantarflexor muscle–tendon unit in children with spastic cerebral palsy? Eur J Appl Physiol 2019; 119:2151-2165. [DOI: 10.1007/s00421-019-04208-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/06/2019] [Indexed: 01/31/2023]
|