@article{LesinskiMuehlbauerBueschetal.2013, author = {Lesinski, Melanie and M{\"u}hlbauer, Thomas and Buesch, Dirk and Granacher, Urs}, title = {Acute Effects of Postactivation Potentiation on Strength and Speed Performance in Athletes}, series = {Sportverletzung, Sportschaden : Grundlagen, Pr{\"a}vention, Rehabilitation}, volume = {27}, journal = {Sportverletzung, Sportschaden : Grundlagen, Pr{\"a}vention, Rehabilitation}, number = {3}, publisher = {Thieme}, address = {Stuttgart}, issn = {0932-0555}, doi = {10.1055/s-0033-1335414}, pages = {147 -- 155}, year = {2013}, abstract = {Background: The contractile history of a muscle or a muscle group can result in an acute enhancement of subsequent muscle force output. This phenomenon is referred to as postactivation potentiation (PAP) and it was frequently substantiated in original research manuscripts, systematic literature reviews, and meta-analyses. However, there is a lack in the literature regarding precise dose-response relations. This literature review describes the main determinants of PAP effects and additionally presents the state of the art regarding the acute effects of PAP protocols on measures of strength, power, and speed in subelite and elite athletes of different sport disciplines. Furthermore, an attempt is made to demonstrate evidence-based information concerning the design of effective PAP protocols. Methods: Our literature search included the electronic databases Pubmed, SportDiscus, and Google Scholar (1995 - March 2013). In total, 23 studies met the inclusionary criteria for review. Results: Findings from our literature review indicate that various conditioning activities produce acute PAP effects in subelite and particularly elite athletes. More specifically, conditioning activities that are characterised by multiple sets, moderate to high intensities (60 - 84 \% of the one repetition maximum), and rest intervals of 7 - 10 min. following the conditioning activity have the potential to induce short-term improvements in muscle force output and sports performance. Conclusion: It is recommended that subelite and particularly elite athletes from strength, power, and speed disciplines apply specifically tailored conditioning activities during the acute preparation process for competition to induce performance enhancing PAP effects.}, language = {de} } @article{MuehlbauerGranacherJockeletal.2013, author = {M{\"u}hlbauer, Thomas and Granacher, Urs and Jockel, Bj{\"o}rn and Kittel, R{\´e}ne}, title = {Analyse der Muskelaktivit{\"a}t therapeutischer Kletter{\"u}bungen}, series = {Sportverletzung, Sportschaden : Grundlagen, Pr{\"a}vention, Rehabilitation}, volume = {27}, journal = {Sportverletzung, Sportschaden : Grundlagen, Pr{\"a}vention, Rehabilitation}, number = {3}, publisher = {Thieme}, address = {Stuttgart}, issn = {0932-0555}, doi = {10.1055/s-0033-1335595}, pages = {162 -- 168}, year = {2013}, abstract = {Background: Therapeutic climbing exercises are employed for the treatment of shoulder-and knee-joint injuries. However, there is a void in the literature regarding muscle activation levels during the performance of these exercises. Thus, the purpose of this study was to investigate differences in muscle activation during therapeutic climbing exercises depending on the degree of task difficulty. Participants/Material and Methods: A sample of 10 healthy subjects (sex: 4 females, 6 males; age: 27 +/- 3 years; climbing experience: 5 +/- 3 years) performed three shoulder girdle (i.e., wide shoulder pull, narrow shoulder pull, shoulder row) and two leg extensor (i.e., ascending frontal, ascending sidewards) exercises. Electromyographic (EMG) data were recorded on the right side for eleven muscles and then normalised using the maximum voluntary contractions for each muscle. Results: With increasing task difficulty, muscle activity in all but one muscle (i.e., m. trapezius ascendens) increased significantly for the three shoulder girdle exercises. For the two leg extensor exercises, an increase in task difficulty produced a tendency towards yet not significantly higher muscle activity. Conclusion: Shoulder row was the most effective therapeutic climbing exercise in the ability to activate muscles while showing the highest EMG signals. The absence of significant differences in muscle activity between the two leg extensor exercises indicates their equivalent use for muscle activation during therapy.}, language = {de} } @article{FrankCzepluchSticheretal.2013, author = {Frank, Ulrike and Czepluch, C. and Sticher, H. and Maetzener, F. and Schlaegel, W. and M{\"a}der, M.}, title = {Modifiziertes Trachealkan{\"u}lenmanagement - Platzhaltereinsatz als Option bei erschwerten Dekan{\"u}lierungen (Pilotprojekt REHAB Basel)}, series = {Die Rehabilitation : Zeitschrift f{\"u}r Praxis und Forschung in der Rehabilitation}, volume = {52}, journal = {Die Rehabilitation : Zeitschrift f{\"u}r Praxis und Forschung in der Rehabilitation}, number = {1}, publisher = {Thieme}, address = {Stuttgart}, issn = {0034-3536}, doi = {10.1055/s-0032-1306290}, pages = {20 -- 26}, year = {2013}, abstract = {Tracheotomierte Patienten, die sowohl eine Dysphagie als auch respiratorische Defizite aufweisen, haben nach der Dekan{\"u}lierung h{\"a}ufig Probleme, sich an die translaryngeale Atmung anzupassen. Wir entwickelten ein Dekan{\"u}lierungsprotokoll f{\"u}r diese Patientengruppe, das optional in unser bestehendes Trachealkan{\"u}lenmanagement integriert werden kann. Erf{\"u}llt ein Patient die hierf{\"u}r definierten Kriterien, so erfolgt unter laryngoskopischer Kontrolle die Einlage eines Platzhalters, der bis zu 3 Tage in situ verbleibt. W{\"a}hrend dieser Probedekan{\"u}lierungsphase werden die respiratorischen Funktionen und das Speichelmanagement engmaschig {\"u}berwacht. Auf der Grundlage dieser Evaluation wird dann die Entscheidung f{\"u}r oder gegen eine endg{\"u}ltige Dekan{\"u}lierung getroffen. Wir stellen den Ablauf, die Kriterienkataloge und die Evaluationsparameter f{\"u}r diese Probedekan{\"u}lierungsphase vor und illustrieren den Ablauf anhand von 2 Fallbeispielen.}, language = {de} }