{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2ac3797772e200743b7ce1aa4bdf7e74a/inspo5", "tags" : [ "or","cycle","modulations","stretch","excitability","plantar","shortening","spinal","cortical","flexors","human","EMG" ], "intraHash" : "ac3797772e200743b7ce1aa4bdf7e74a", "interHash" : "40953d65f08f042d8f840b9b2462a29b", "label" : "The stretch\u2013shortening cycle effect is not associated with cortical or spinal excitability modulations", "user" : "inspo5", "description" : "", "date" : "2025-11-05 15:21:14", "changeDate" : "2025-11-05 15:21:14", "count" : 3, "pub-type": "article", "journal": "The Journal of Physiology","publisher":"Wiley", "year": "2025", "url": "http://dx.doi.org/10.1113/JP287508", "author": [ "Lea\u2010Fedia Rissmann","Brent James Raiteri","Wolfgang Seiberl","Tobias Siebert","Daniel Hahn" ], "authors": [ {"first" : "Lea\u2010Fedia", "last" : "Rissmann"}, {"first" : "Brent James", "last" : "Raiteri"}, {"first" : "Wolfgang", "last" : "Seiberl"}, {"first" : "Tobias", "last" : "Siebert"}, {"first" : "Daniel", "last" : "Hahn"} ], "editor": [ "Tobias Siebert" ], "editors": [ {"first" : "Tobias", "last" : "Siebert"} ], "volume": "603","number": "14","pages": "3987\u20134004","abstract": "It is unclear whether cortical and spinal excitability modulations contribute to enhanced stretch\u2013shortening cycle (SSC) performance. Therefore, this study investigated cortical and spinal excitability modulations during and following shortening of SSC contractions compared with pure shortening (SHO) contractions. Participants (n = 18) performed submaximal voluntary plantar flexion contractions while prone on the dynamometer bench. The right foot was strapped onto the dynamometer's footplate attachment, and the resultant ankle joint torque and crank arm angle were recorded. Cortical and spinal excitability modulations of the soleus muscle were analysed by eliciting compound muscle actional potentials via electrical nerve stimulation, cervicomedullary motor-evoked potentials (CMEPs) via electrical stimulation of the spinal cord, and motor-evoked potentials (MEPs) via magnetic stimulation of the motor cortex. Mean torque following stretch was significantly increased by 7 ± 3% (P = 0.029) compared with the fixed-end reference (REF) contraction, and mean torque during shortening of SSC compared with SHO was significantly increased by 12 ± 24% (P = 0.046). Mean steady-state torque was significantly lower by 13 ± 3% (P = 0.006) and 9 ± 12% (P = 0.011) following SSC compared with REF and SHO, respectively. Mean steady-state torque was not significantly different following SHO compared with REF (7 ± 8%, P = 0.456). CMEPs and MEPs were also not significantly different during shortening of SSC compared with SHO (P ≥ 0.885) or during the steady state of SSC, SHO and REF (P ≥ 0.727). Therefore, our results indicate that SSC performance was not associated with cortical or spinal excitability modulations during or after shortening, but rather driven by mechanical mechanisms triggered during active stretch.", "language" : "English", "issn" : "1469-7793", "preprinturl" : "https://physoc.onlinelibrary.wiley.com/doi/10.1113/JP287508", "doi" : "10.1113/jp287508", "bibtexKey": "Rissmann_2025" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/25fabf2c2080fc8251464bb523c2b0e5a/inspo5", "tags" : [ "excitability","or","spinal","cortical","stretch\u2013shortening","cycle","modulations" ], "intraHash" : "5fabf2c2080fc8251464bb523c2b0e5a", "interHash" : "3a54c14c93232073f98c02fc2d12f7d3", "label" : "Reply to the Letter to the Editor concerning the article: \u2018The stretch\u2013shortening cycle effect is not associated with cortical or spinal excitability modulations\u2019", "user" : "inspo5", "description" : "", "date" : "2025-11-05 15:05:49", "changeDate" : "2025-11-05 15:05:49", "count" : 2, "pub-type": "article", "journal": "The Journal of Physiology","publisher":"Wiley", "year": "2025", "url": "http://dx.doi.org/10.1113/JP290104", "author": [ "Daniel Hahn","Wolfgang Seiberl","Tobias Siebert","Brent James Raiteri" ], "authors": [ {"first" : "Daniel", "last" : "Hahn"}, {"first" : "Wolfgang", "last" : "Seiberl"}, {"first" : "Tobias", "last" : "Siebert"}, {"first" : "Brent James", "last" : "Raiteri"} ], "editor": [ "Tobias Siebert" ], "editors": [ {"first" : "Tobias", "last" : "Siebert"} ], "abstract": "Our main finding was that the stretch\u2013shortening cycle (SSC) effect was not associated with cortical or spinal excitability modulations, and the main criticism of Taube et al. (2025) was that this main finding should not be generalised to all SSCs. This criticism appears misplaced as we never generalised our main finding to other SSCs and actually explicitly stated as part of our limitations that the \u2018results are specific to our set-up\u2019 and also \u2018specific to the controlled dynamometer conditions used\u2019 (Rissmann et al., 2025). Obviously, a different set-up or different stretch or shortening parameters could lead to diverging findings because of altered activation, muscle and muscle\u2013tendon unit (MTU) dynamics, and we even stated that our findings do \u2018not preclude cortical and spinal excitability modulations during other SSC conditions\u2019. As such, we did not feel it necessary to end our article's title with a statement on generalisability. Accordingly, we strongly disagree with Taube et al. (2025) that our interpretation of our results is misleading.", "language" : "English", "issn" : "1469-7793", "preprinturl" : "https://physoc.onlinelibrary.wiley.com/doi/10.1113/JP290104#support-information-section", "doi" : "10.1113/jp290104", "bibtexKey": "Hahn_2025" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2bdb55aca3ae7eac8dc1d01764e0773a3/inspo5", "tags" : [ "stretch","muscle-tendon","siebert","unit","muscle","Eccentric","action","active","stretch-shortening","cycle" ], "intraHash" : "bdb55aca3ae7eac8dc1d01764e0773a3", "interHash" : "ded4877e88b626fe8d1872f00b7a2a53", "label" : "Unlocking the benefit of active stretch: The Eccentric muscle action not the preload maximizes muscle-tendon unit stretch-shortening cycle performance", "user" : "inspo5", "description" : "", "date" : "2024-07-01 13:13:24", "changeDate" : "2024-07-01 13:13:24", "count" : 2, "pub-type": "article", "journal": "Journal of Applied Physiology","publisher":"American Physiological Society", "year": "2024", "url": "http://dx.doi.org/10.1152/japplphysiol.00809.2023", "author": [ "Tobias Goecking","Denis Holzer","Daniel Hahn","Tobias Siebert","Wolfgang Seiberl" ], "authors": [ {"first" : "Tobias", "last" : "Goecking"}, {"first" : "Denis", "last" : "Holzer"}, {"first" : "Daniel", "last" : "Hahn"}, {"first" : "Tobias", "last" : "Siebert"}, {"first" : "Wolfgang", "last" : "Seiberl"} ], "editor": [ "Tobias Siebert" ], "editors": [ {"first" : "Tobias", "last" : "Siebert"} ], "abstract": "Stretch-shortening cycles (SSCs) outperform shortening contractions preceded by isometric contractions in terms of enhanced force/torque, work, and power production during shortening. This so-called SSC-effect is presumably related to the active muscle stretch before shortening in SSCs. However, it remains unclear whether the stretch-induced higher preload level or stretch-induced history dependence effects maximize the SSC-effect. Therefore, we analyzed fascicle behavior, MTU shortening work, and torque/force (N=12 participants) via ultrasound and dynamometry during electrically stimulated submaximal plantar flexion contractions from 10° plantarflexion to 15° dorsiflexion. To elucidate the effects of preload level and preload modality (i.e. contraction type) on shortening performance, muscle-tendon unit shortening was preceded by fixed-end (SHO), active stretch (SSC), and preload-matched fixed-end (MATCHED) contractions. Prior to shortening MATCHED and SCC had the same preload level (1% torque difference), similar joint position and muscle fascicle lengths. Compared with SHO, shortening work was significantly (p<.001, partial η2=.749) increased by 85% and 55% for SSC and MATCHED, respectively, with SSC shortening work being significantly higher than MATCHED (p=.016). This indicates that preload contributes by 65% to the overall SSC-effect, so that 35 % need to be referred to stretched-induced history dependent mechanisms. Additionally, SSC showed larger fascicle forces at the end of shortening (p<.001) and 20% less depressed isometric torque following shortening compared with MATCHED (p<.001). Since potential decoupling effects by the series elastic element were controlled by matching the preload levels, we conclude that the difference between SSC and MATCHED is related to stretch-induced long-lasting history dependent effects.", "language" : "English", "issn" : "1522-1601", "doi" : "10.1152/japplphysiol.00809.2023", "bibtexKey": "Goecking_2024" } ] }