Now showing 1 - 10 of 12
  • 2015Journal Article
    [["dc.bibliographiccitation.firstpage","715"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Manual Therapy"],["dc.bibliographiccitation.lastpage","722"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Dieterich, A."],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Pickard, C."],["dc.contributor.author","Davey, Paul"],["dc.contributor.author","Falla, Deborah"],["dc.date.accessioned","2018-11-07T09:51:11Z"],["dc.date.available","2018-11-07T09:51:11Z"],["dc.date.issued","2015"],["dc.description.abstract","Background: Knowledge on task-specific activity of the deep hip abductor muscles is limited and is required for determining appropriate hip abductor exercises. Objectives: To assess the temporal differentiation of activity of gluteus minimus and the deep and the superficial regions of gluteus medius during weight bearing and non-weight bearing exercises. Design: Repeated measures design on a single recording occasion. Method: M-mode ultrasound was used to capture activity-related muscle motion of the gluteus minimus and medius muscles in 20 healthy volunteers during weight shift, hip hitch, side-lying abduction and active leg lengthening exercises. M-mode traces were computer-processed for detecting muscle motion onsets. Mean onset differences between muscle regions and their intra-individual variability were assessed. Results: In contrast to side-lying abduction, the weight shift and hip hitch exercises resulted in larger onset variability between the gluteus minimus and deep gluteus medius (P < 0.001) and also between the deep and superficial regions of the gluteus medius (P < 0.05). Conclusions: Weight bearing exercises promoted a greater functional differentiation between deep and superficial hip abductor muscles. (C) 2015 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.math.2015.01.006"],["dc.identifier.isi","000361773900012"],["dc.identifier.pmid","25697631"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35860"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1532-2769"],["dc.relation.issn","1356-689X"],["dc.title","Differentiation of gluteus medius and minimus activity in weight bearing and non-weight bearing exercises by M-mode ultrasound imaging"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.firstpage","268"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Orthopaedic and Sports Physical Therapy"],["dc.bibliographiccitation.lastpage","277"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Falla, Deborah"],["dc.contributor.author","Gizzi, Leonardo"],["dc.contributor.author","Parsa, Hesam"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Petzke, Frank"],["dc.date.accessioned","2018-11-07T10:25:46Z"],["dc.date.available","2018-11-07T10:25:46Z"],["dc.date.issued","2017"],["dc.description.abstract","STUDY DESIGN: Controlled laboratory study, case-control design. OBJECTIVE: To evaluate spine kinematics and gait characteristics in people with nonspecific chronic neck pain. BACKGROUND: People with chronic neck pain present with a number of sensorimotor and biomechanical alterations, yet little is known about the influence of neck pain on gait and motions of the spine during gait. METHODS: People with chronic nonspecific neck pain and age- and sex-matched asymptomatic controls walked on a treadmill at 3 different speeds (self-selected, 3 km/h, and 5 km/h), either with their head in a neutral position or rotated 30. Tridimensional motion capture was employed to quantify body kinematics. Neck and trunk rotations were derived from the difference between the transverse plane component of the head and thorax and thorax and pelvis angles to provide an indication of neck and trunk rotation during gait. RESULTS: Overall, the patient group showed shorter stride length compared to the control group (P<.001). Moreover, the patients with neck pain showed smaller trunk rotations (P<.001), regardless of the condition or speed. The difference in the amount of trunk rotation between groups became larger for the conditions of walking with the head rotated. CONCLUSION: People with chronic neck pain walk with reduced trunk rotation, especially when challenged by walking with their head positioned in rotation. Reduced rotation of the trunk during gait may have long-term consequences on spinal health."],["dc.identifier.doi","10.2519/jospt.2017.6768"],["dc.identifier.isi","000398334200007"],["dc.identifier.pmid","28158961"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42920"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","J O S P T"],["dc.relation.issn","1938-1344"],["dc.relation.issn","0190-6011"],["dc.title","People With Chronic Neck Pain. Walk With a Stiffer Spine"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2022-07-23Journal Article Research Paper
    [["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Diagnostics"],["dc.bibliographiccitation.volume","12"],["dc.contributor.affiliation","Dieterich, Angela V.; 1Physiotherapy, Faculty of Health, Security, Society, Furtwangen University, 78120 Furtwangen im Schwarzwald, Germany"],["dc.contributor.affiliation","Yavuz, Utku Şükrü; 2Biomedical Signals and Systems, University of Twente, 7522 NB Enschede, The Netherlands; s.u.yavuz@utwente.nl"],["dc.contributor.affiliation","Petzke, Frank; 3Pain Clinic, Department of Anesthesiology, University Medical Center, 37075 Göttingen, Germany; frank.petzke@med.uni-goettingen.de"],["dc.contributor.affiliation","Nordez, Antoine; 4Movement-Interactions-Performance, Nantes Université, EA 4334, F-44000 Nantes, France; antoine.nordez@univ-nantes.fr"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Yavuz, Utku Şükrü"],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Nordez, Antoine"],["dc.date.accessioned","2022-08-04T08:37:27Z"],["dc.date.available","2022-08-04T08:37:27Z"],["dc.date.issued","2022-07-23"],["dc.date.updated","2022-08-03T10:42:19Z"],["dc.description.abstract","Identifying the objective stiffness of the neck muscles facilitates the early and specific diagnosis of neck pain and targeted therapy. However, individual variation in the muscle shear modulus obscures differences between healthy and diseased individuals. Normalization may improve the comparability between individuals. The shear modulus at different functional tasks served as a reference for normalizing the neck muscles’ shear modulus of 38 women, 20 with chronic neck pain and 18 asymptomatic. Reference tasks were maximal voluntary contraction, relaxed sitting, prone head lift, balancing 1 kg on the head, and neck extension at 48 N. The effects of normalization on within-group variation and between-group differences were compared. Normalization with maximal voluntary contraction was discarded due to imaging problems. Normalization with relaxed sitting, prone head lift, balancing 1 kg, and neck extension at 48 N reduced within-group variation, by 23.2%, 26.8%, 11.6%, and 33.6%, respectively. All four normalization approaches reduced the p-values when testing for between-group differences. For the pain group, normalization with relaxed sitting and head lift indicated less normalized muscle stiffness, while normalization with balancing 1 kg and extension at 48 N indicated higher stiffness. The contradictory results are explainable by non-significant group differences in the reference tasks. Normalization of the muscle shear modulus is effective to reduce within-group variation, but a trustworthy normalization approach for group comparisons has yet to be identified."],["dc.description.sponsorship","Baden-Württemberg Ministry of Science, Research and Culture"],["dc.description.sponsorship","Institute of Applied Research of Furtwangen University"],["dc.identifier.doi","10.3390/diagnostics12081791"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112634"],["dc.language.iso","en"],["dc.relation.eissn","2075-4418"],["dc.rights","CC BY 4.0"],["dc.title","Assessment of Neck Muscle Shear Modulus Normalization in Women with and without Chronic Neck Pain"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article
    [["dc.bibliographiccitation.firstpage","438"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Physiotherapy Theory and Practice"],["dc.bibliographiccitation.lastpage","443"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Deshon, Louise E."],["dc.contributor.author","Pickard, Christine M."],["dc.contributor.author","Strauss, Geoffrey R."],["dc.contributor.author","McKay, Janice"],["dc.date.accessioned","2018-11-07T09:37:26Z"],["dc.date.available","2018-11-07T09:37:26Z"],["dc.date.issued","2014"],["dc.description.abstract","The hip abductors gluteus medius (Gmed) and minimus (Gmin) differ slightly in function and how they are affected by hip joint pathology. A separate assessment of Gmed and Gmin is feasible by ultrasound (US) imaging. B-mode and M-mode US can be used to measure muscle thickness. Two B- and two M-mode scans of Gmed and Gmin thickness were taken in relaxation on 16 asymptomatic volunteers, repeated within 4 days on 11 subjects. Three types of intra-rater reliability of muscle thickness measurements were examined: (1) within-session reliability comparing two scans from the same session, (2) between-days reliability comparing thickness from two scanning occasion within 4 days and (3) reliability of taking thickness measurements by re-measuring the same US scans after 1 week. Thickness measurements on B-and M-mode images provided ICC3,1 >0.96 for within-session reliability. ICC3,k >0.89 for between-days reliability and ICC3,1 >0.85 for re-reading the same scans were estimated. Minimal detectable changes 41.0mm within-session, 42.4mm between-days and 41.7mm for re-reading scans indicated that small thickness changes are not detectable. The investigation suggests a slight advantage for fascia recognition in B-mode and the advantage of visual control of muscle relaxation in M-mode."],["dc.identifier.doi","10.3109/09593985.2014.890261"],["dc.identifier.isi","000338637500008"],["dc.identifier.pmid","24571572"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32838"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Informa Healthcare"],["dc.relation.issn","1532-5040"],["dc.relation.issn","0959-3985"],["dc.title","Separate assessment of gluteus medius and minimus: B-mode or M-mode ultrasound?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.artnumber","42011"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Botter, Alberto"],["dc.contributor.author","Vieira, Taian Martins"],["dc.contributor.author","Peolsson, Anneli"],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Davey, Paul"],["dc.contributor.author","Falla, Deborah"],["dc.date.accessioned","2018-11-07T10:27:32Z"],["dc.date.available","2018-11-07T10:27:32Z"],["dc.date.issued","2017"],["dc.description.abstract","Delayed onset of muscle activation can be a descriptor of impaired motor control. Activation onset can be estimated from electromyography (EMG)-registered muscle excitation and from ultrasound-registered muscle motion, which enables non-invasive measurements in deep muscles. However, in voluntary activation, EMG-and ultrasound-detected activation onsets may not correspond. To evaluate this, ten healthy men performed isometric elbow flexion at 20% to 70% of their maximal force. Utilising a multi-channel electrode transparent to ultrasound, EMG and M(otion)-mode ultrasound were recorded simultaneously over the biceps brachii muscle. The time intervals between automated and visually estimated activation onsets were correlated with the regional variation of EMG and muscle motion onset, contraction level and speed. Automated and visual onsets indicated variable time intervals between EMG-and motion onset, median (interquartile range) 96 (121) ms and 48 (72) ms, respectively. In 17% (computed analysis) or 23% (visual analysis) of trials, motion onset was detected before local EMG onset. Multi-channel EMG and M-mode ultrasound revealed regional differences in activation onset, which decreased with higher contraction speed (Spearman rho >= 0.45, P < 0.001). In voluntary activation the heterogeneous motor unit recruitment together with immediate motion transmission may explain the high variation of the time intervals between local EMG-and ultrasound-detected activation onset."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.1038/srep42011"],["dc.identifier.isi","000393550900001"],["dc.identifier.pmid","28176821"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14273"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43250"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Nature Publishing Group"],["dc.relation.issn","2045-2322"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Spatial variation and inconsistency between estimates of onset of muscle activation from EMG and ultrasound"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.firstpage","694"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Manual Therapy"],["dc.bibliographiccitation.lastpage","702"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Schomacher, Jochen"],["dc.contributor.author","Erlenwein, Joachim"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Falla, Deborah"],["dc.date.accessioned","2018-11-07T09:51:11Z"],["dc.date.available","2018-11-07T09:51:11Z"],["dc.date.issued","2015"],["dc.description.abstract","The deep cervical extensor, semispinalis cervicis, displays changes in behaviour and structure in people with chronic neck pain yet there is limited knowledge on how activation of this muscle can be emphasized during training. Using intramuscular electromyography (EMG), this study investigated the activity of the deep semispinalis cervicis and the superficial splenius capitis muscle at two spinal levels (C2 and C5) in ten healthy volunteers during a series of neck exercises: I. Traction and compression, 2. Resistance applied in either flexion or extension at the occiput, at the level of the vertebral arch of Cl and of C4, and 3. Maintaining the neck in neutral while inclined on the elbows, with and without resistance at C4. The ratio between semispinalis cervicis and the splenius capitis EMG amplitude was quantified as an indication of whether the exercise could emphasize the activation of the semispinalis cervicis muscle relative to the splenius capitis. Manual resistance applied in extension over the vertebral arch emphasized the activation of the semispinalis cervicis relative to the splenius capitis at the spinal level directly caudal to the site of resistance (ratio: 2.0 +/- 1.1 measured at C5 with resistance at C4 and 2.1 +/- 1.2 measured at C2 with resistance at Cl). This study confirmed the possibility of emphasizing the activation of the semispinalis cervicis relative to the splenius capitis which may be relevant for targeted exercise interventions for this deep extensor muscle. Further studies are required to investigate the clinical efficacy of these exercises for people with neck pain. (C) 2015 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.math.2015.04.010"],["dc.identifier.isi","000361773900009"],["dc.identifier.pmid","25935795"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35859"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Churchill Livingstone"],["dc.relation.issn","1532-2769"],["dc.relation.issn","1356-689X"],["dc.title","Can neck exercises enhance the activation of the semispinalis cervicis relative to the splenius capitis at specific spinal levels?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.firstpage","224"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Electromyography and Kinesiology"],["dc.bibliographiccitation.lastpage","231"],["dc.bibliographiccitation.volume","25"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Pickard, Christine M."],["dc.contributor.author","Deshon, Louise E."],["dc.contributor.author","Strauss, Geoffrey R."],["dc.contributor.author","Gibson, William"],["dc.contributor.author","Davey, Paul"],["dc.contributor.author","McKay, Janice"],["dc.date.accessioned","2018-11-07T09:59:21Z"],["dc.date.available","2018-11-07T09:59:21Z"],["dc.date.issued","2015"],["dc.description.abstract","M-mode ultrasound imaging (US) reflects motion of connective tissue within muscles. As muscle contraction is accompanied by motion of muscle tissue, M-mode US may be used to measure non-invasively the onset of deep muscle activity. Isometric hip abduction was measured on nine healthy subjects in the deep region of the gluteus medius muscle and in gluteus minimus by fine-wire electromyography (EMG) and M-mode US. Following signal transformation with the Teager-Kaiser Energy Operator, EMG and M-mode US onsets of muscle activity were computer-processed. Correlation between log-transformed EMG and M-mode high-energy onsets was higher in gluteus medius (r 0.93) than in gluteus minimus (r 0.86). M-mode high-energy onsets followed EMG onset by median 33 (IQR 53) ms in gluteus medius, and by 17 (IQR 63) ms in gluteus minimus. 4% of gluteus medius and 23% of gluteus minimus M-mode onsets were detected before EMG onset. Using a higher onset threshold reduced the rate of onsets detected before EMG but also prediction accuracy. In voluntary activation, M-mode US high-energy onsets were closely related to EMG-measured onsets, but the time interval between both measures varied. The relationship of electrical and mechanical activation onsets appears to be influenced by modifying factors which may differ between muscles. (C) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.jelekin.2014.12.006"],["dc.identifier.isi","000350465500004"],["dc.identifier.pmid","25636500"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37569"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","1873-5711"],["dc.relation.issn","1050-6411"],["dc.title","M-mode ultrasound used to detect the onset of deep muscle activity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article
    [["dc.bibliographiccitation.firstpage","179"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Orthopaedic and Sports Physical Therapy"],["dc.bibliographiccitation.lastpage","188"],["dc.bibliographiccitation.volume","50"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Yavuz, Utku Şükrü"],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Nordez, Antoine"],["dc.contributor.author","Falla, Deborah"],["dc.date.accessioned","2021-04-14T08:26:27Z"],["dc.date.available","2021-04-14T08:26:27Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.2519/jospt.2020.8821"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81952"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1938-1344"],["dc.relation.issn","0190-6011"],["dc.title","Neck Muscle Stiffness Measured With Shear Wave Elastography in Women With Chronic Nonspecific Neck Pain"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.artnumber","e0206514"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","PlOS ONE"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Crawford, Rebecca"],["dc.contributor.author","Gizzi, Leonardo"],["dc.contributor.author","Dieterich, Angela"],["dc.contributor.author","Ni Mhuiris, Áine"],["dc.contributor.author","Falla, Deborah"],["dc.date.accessioned","2019-07-09T11:50:17Z"],["dc.date.available","2019-07-09T11:50:17Z"],["dc.date.issued","2018"],["dc.description.abstract","The influence of age on spinal muscle activation patterns and its relation to kinematics is poorly understood. We aimed at understanding age-related changes to spine and trunk muscle activity in addition to spinal and lower limb kinematics during treadmill walking under various conditions. An observational study was conducted evaluating asymptomatic young (n = 10; 3F, 7M; 26.3±2.5yrs) and older (n = 9; 3F, 6M; 67.1±4.2yrs) adults' treadmill walking at 2km/h and 4km/h, each at 0, 1, 5, and 10% inclination. Unilateral (right side) electromyography (EMG) was recorded from deep and superficial multifidus (intramuscular) and erector spinae and abdominal obliques (surface); trunk and leg kinematics were also measured. Muscle activity was characterised by peak amplitude and duration of activity, and the time-point of peak amplitude in the gait cycle (0-100%). Peak activation in older adults was lower for the superficial multifidus (p<0.0001) and higher for the thoracolumbar (p<0.001) and lumbar erector spinae (p<0.01). The duration of activation was longer in older adults for all muscles (p<0.05) except the superficial multifidus, and longer during faster walking for all participants. The time-point of peak amplitude in the gait cycle was earlier in older participants for the external obliques (p<0.05). Walking speed appeared to influence muscle activity more than inclination. Older adults used less spine, trunk and lower limb motion, except at the ankle. Age-related differences within multifidus and between paravertebral and trunk muscles were inconsistent. Walking at 4km/h at 5-10% inclination may specifically target the lumbar paravertebral muscles."],["dc.identifier.doi","10.1371/journal.pone.0206514"],["dc.identifier.pmid","30408111"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15902"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59739"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","Age-related changes in trunk muscle activity and spinal and lower limb kinematics during gait"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.firstpage","171"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","European Journal of Applied Physiology"],["dc.bibliographiccitation.lastpage","178"],["dc.bibliographiccitation.volume","117"],["dc.contributor.author","Dieterich, Angela V."],["dc.contributor.author","Andrade, Ricardo J."],["dc.contributor.author","Le Sant, Guillaume"],["dc.contributor.author","Falla, Deborah"],["dc.contributor.author","Petzke, Frank"],["dc.contributor.author","Hug, Francois"],["dc.contributor.author","Nordez, Antoine"],["dc.date.accessioned","2018-11-07T10:29:04Z"],["dc.date.available","2018-11-07T10:29:04Z"],["dc.date.issued","2017"],["dc.description.abstract","The neck extensor muscles contribute to spinal support and posture while performing head and neck motion. Muscle stiffness relates to passive elasticity (support) and active tensioning (posture and movement) of muscle. It was hypothesized that support and motion requirements are reflected in the distribution of stiffness between superficial and deep neck extensor muscles. In ten healthy participants, shear modulus (stiffness) of five neck extensor muscles was determined in prone at rest and during isometric head lift at three intensities using shear wave elastography. Shear modulus differed between muscles (P < 0.001), and was larger for the deeper muscles: (median (interquartile range)) trapezius 7.7 kPa (4.4), splenius capitis 6.5 kPa (2.5), semispinalis capitis 8.9 kPa (2.8), semispinalis cervicis 9.5 kPa (2.5), multifidus 14.9 kPa (1.4). Shear modulus differed between the resting condition and head lift (P < 0.001) but not between levels of head lift intensity. Shear wave elastography revealed highest passive and active stiffness of the deep neck extensor muscles most close to the spine. The highest active increase of stiffness during the head lift was found in the semispinalis cervicis muscle. The non-invasive, clinically applicable estimates of muscle stiffness have potential for the assessment of muscular changes associated with neck pain/injury."],["dc.identifier.doi","10.1007/s00421-016-3509-5"],["dc.identifier.isi","000394313300017"],["dc.identifier.pmid","27913924"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43562"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Springer"],["dc.relation.issn","1439-6327"],["dc.relation.issn","1439-6319"],["dc.title","Shear wave elastography reveals different degrees of passive and active stiffness of the neck extensor muscles"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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