@inproceedings{Rapp2015, author = {Rapp, Michael Armin}, title = {When Local Poverty is More Important Than Your Income: Migrant Mental Health in Inner Cities}, series = {European psychiatry : the journal of the Association of European Psychiatrists}, volume = {30}, booktitle = {European psychiatry : the journal of the Association of European Psychiatrists}, publisher = {Elsevier}, address = {Paris}, issn = {0924-9338}, pages = {1}, year = {2015}, language = {en} } @misc{RappKlugePenkaetal.2015, author = {Rapp, Michael Armin and Kluge, Ulrike and Penka, Simone and Vardar, Azra and Aichberger, Marion Christina and Mundt, Adrian P. and Schouler-Ocak, Meryam and M{\"o}sko, Mike and Butler, Jeffrey and Meyer-Lindenberg, Andreas and Heinz, Andreas}, title = {When local poverty is more important than your income: Mental health in minorities in inner cities}, series = {World psychiatry}, volume = {14}, journal = {World psychiatry}, number = {2}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {1723-8617}, doi = {10.1002/wps.20221}, pages = {249 -- 250}, year = {2015}, language = {en} } @article{KopinskiEngelCasseletal.2015, author = {Kopinski, Stephan and Engel, Tilman and Cassel, Michael and Fr{\"o}hlich, Katja and Mayer, Frank and Carlsohn, Anja}, title = {Ultrasound Applied to Subcutaneous Fat Tissue Measurements in International Elite Canoeists}, series = {International journal of sports medicine}, volume = {36}, journal = {International journal of sports medicine}, number = {14}, publisher = {Thieme}, address = {Stuttgart}, issn = {0172-4622}, doi = {10.1055/s-0035-1555857}, pages = {1134 -- 1141}, year = {2015}, abstract = {Subcutaneous adipose tissue (SAT) measurements with ultrasound have recently been introduced to assess body fat in elite athletes. However, appropriate protocols and data on various groups of athletes are missing. We investigated intra-rater reliability of SAT measurements using ultrasound in elite canoe athletes. 25 international level canoeists (18 male, 7 female; 23 +/- 4 years; 81 +/- 11 kg; 1.83 +/- 0.09 m; 20 +/- 3 training h/wk) were measured on 2 consecutive days. SAT was assessed with B-mode ultrasound at 8 sites (ISAK): triceps, subscapular, biceps, iliac crest, supraspinal, abdominal, front thigh, medial calf, and quantified using image analysis software. Data was analyzed descriptively (mean +/- SD, [range]). Coefficient of variation (CV \%), intraclass correlation coefficient (ICC, 2.1) and absolute (LoA) and ratio limits of agreement (RLoA) were calculated for day-to-day reliability. Mean sum of SAT thickness was 30.0 +/- 19.4 mm [8.0, 80.1 mm], with 3.9 +/- 1.8 mm [1.2 mm subscapular, 8.0 mm abdominal] for individual sites. CV for the sum of sites was 4.7 \%, ICC 0.99, LoA 1.7 +/- 3.6 mm, RLoA 0.940 (*/divided by 1.155). Measuring SAT with ultrasound has proved to have excellent day-to-day reliability in elite canoe athletes. Recommendations for standardization of the method will further increase accuracy and reproducibility.}, language = {en} } @article{IntziegianniCasselKoenigetal.2015, author = {Intziegianni, Konstantina and Cassel, Michael and K{\"o}nig, Niklas and M{\"u}ller, Steffen and Fr{\"o}hlich, Katja and Mayer, Frank}, title = {Ultrasonography for the assessment of the structural properties of the Achilles tendon in asymptomatic individuals: An intra-rater reproducibility study}, series = {Isokinetics and exercise science : official journal of the European Isokinetic Society}, volume = {23}, journal = {Isokinetics and exercise science : official journal of the European Isokinetic Society}, number = {4}, publisher = {IOS Press}, address = {Amsterdam}, issn = {0959-3020}, doi = {10.3233/IES-150586}, pages = {263 -- 270}, year = {2015}, abstract = {BACKGROUND: Reproducible measurements of tendon structural properties are a prerequisite for accurate diagnosis of tendon disorders and for determination of their mechanical properties. Despite the widely used application of Ultrasonography (US) in musculoskeletal assessment, its operator dependency and lack of standardization influences the consistency of the measurement. OBJECTIVE: To evaluate the intra-rater reproducibility of a standardized US method assessing the structural properties of the Achilles tendon (AT). METHODS: Sixteen asymptomatic participants were positioned prone on an isokinetic dynamometer with the knee extended and ankle at 90. flexion. US was used to assess AT-length, cross-sectional area (CSA), and AT-elongation during isometric plantarflexion contraction. The intra-rater reproducibility was assessed by ICC (2.1), Test-Retest Variability (TRV, \%), Bland-Altman analyses (Bias +/- LoA [1.96*SD]), and Standard-Error of Measurement (SEM). RESULTS: Measurements of AT-length demonstrated an ICC of 0.93, TRV of 4.5 +/- 3.9\%, Bias +/- LoA of -2.8 +/- 25.0 mm and SEM of 6.6 mm. AT-CSA showed an ICC of 0.79, TRV of 8.7 +/- 9.6\%, Bias +/- LoA of 1.7 +/- 19.4 mm(2) and SEM of 5.3 mm(2). AT-elongation revealed an ICC of 0.92, TRV of 12.9 +/- 8.9\%, Bias +/- LoA of 0.3 +/- 5.7 mm and SEM of 1.5 mm. CONCLUSIONS: The presented methodology allows a reproducible assessment of Achilles tendon structural properties when performed by a single rater.}, language = {en} } @phdthesis{Prieske2015, author = {Prieske, Olaf}, title = {The role of surface condition in athletic performance}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80503}, school = {Universit{\"a}t Potsdam}, pages = {viii, 118, ix}, year = {2015}, abstract = {During the last two decades, instability training devices have become a popular means in athletic training and rehabilitation of mimicking unstable surfaces during movements like vertical jumps. Of note, under unstable conditions, trunk muscles seem to have a stabilizing function during exercise to facilitate the transfer of torques and angular momentum between the lower and upper extremities. The present thesis addresses the acute effects of surface instability on performance during jump-landing tasks. Additionally, the long-term effects (i.e., training) of surface instability were examined with a focus on the role of the trunk in athletic performance/physical fitness. Healthy adolescent, and young adult subjects participated in three cross-sectional and one longitudinal study, respectively. Performance in jump-landing tasks on stable and unstable surfaces was assessed by means of a ground reaction force plate. Trunk muscle strength (TMS) was determined using an isokinetic device or the Bourban TMS test. Physical fitness was quantified by standing long jump, sprint, stand-and-reach, jumping sideways, Emery balance, and Y balance test on stable surfaces. In addition, activity of selected trunk and leg muscles and lower limb kinematics were recorded during jump-landing tasks. When performing jump-landing tasks on unstable compared to stable surfaces, jump performance and leg muscle activity were significantly lower. Moreover, significantly smaller knee flexion angles and higher knee valgus angles were observed when jumping and landing on unstable compared to stable conditions and in women compared to men. Significant but small associations were found between behavioral and neuromuscular data, irrespective of surface condition. Core strength training on stable as well as on unstable surfaces significantly improved TMS, balance and coordination. The findings of the present thesis imply that stable rather than unstable surfaces provide sufficient training stimuli during jump exercises (i.e., plyometrics). Additionally, knee motion strategy during plyometrics appears to be modified by surface instability and sex. Of note, irrespective of surface condition, trunk muscles only play a minor role for leg muscle performance/activity during jump exercises. Moreover, when implemented in strength training programs (i.e., core strength training), there is no advantage in using instability training devices compared to stable surfaces in terms of enhancement of athletic performance.}, language = {en} } @article{GranacherPrieskeMajewskietal.2015, author = {Granacher, Urs and Prieske, Olaf and Majewski, M. and B{\"u}sch, Dirk and M{\"u}hlbauer, Thomas}, title = {The Role of Instability with Plyometric Training in Sub-elite Adolescent Soccer Players}, series = {International journal of sports medicine}, volume = {36}, journal = {International journal of sports medicine}, number = {5}, publisher = {Thieme}, address = {Stuttgart}, issn = {0172-4622}, doi = {10.1055/s-0034-1395519}, pages = {386 -- 394}, year = {2015}, abstract = {The purpose of this study was to investigate the effects of plyometric training on stable (SPT) vs. highly unstable surfaces (IPT) on athletic performance in adolescent soccer players. 24 male sub-elite soccer players (age: 15 +/- 1 years) were assigned to 2 groups performing plyometric training for 8 weeks (2 sessions/week, 90min each). The SPT group conducted plyometrics on stable and the IPT group on unstable surfaces. Tests included jump performance (countermovement jump [CMJ] height, drop jump [DJ] height, DJ performance index), sprint time, agility and balance. Statistical analysis revealed significant main effects of time for CMJ height (p<0.01, f=1.44), DJ height (p<0.01, f=0.62), DJ performance index (p<0.05, f=0.60), 0-10-m sprint time (p<0.05, f=0.58), agility (p<0.01, f=1.15) and balance (p<0.05, 0.46f1.36). Additionally, a Training groupxTime interaction was found for CMJ height (p<0.01, f=0.66) in favor of the SPT group. Following 8 weeks of training, similar improvements in speed, agility and balance were observed in the IPT and SPT groups. However, the performance of IPT appears to be less effective for increasing CMJ height compared to SPT. It is thus recommended that coaches use SPT if the goal is to improve jump performance.}, language = {en} } @inproceedings{PuschmannKlipkerWeiffenetal.2015, author = {Puschmann, Anne-Katrin and Klipker, Kathrin and Weiffen, Anja and Wippert, Pia-Maria}, title = {The influence of physical activity and gender on vital exhaustion in healthy subjects}, series = {Psychoneuroendocrinology}, volume = {61}, booktitle = {Psychoneuroendocrinology}, publisher = {Elsevier}, address = {Oxford}, issn = {0306-4530}, doi = {10.1016/j.psyneuen.2015.07.602}, pages = {76 -- 77}, year = {2015}, language = {en} } @article{FriedelSchlagenhaufBecketal.2015, author = {Friedel, Eva and Schlagenhauf, Florian and Beck, Anne and Dolan, Raymond J. and Huys, Quentin J. M. and Rapp, Michael Armin and Heinz, Andreas}, title = {The effects of life stress and neural learning signals on fluid intelligence}, series = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry}, volume = {265}, journal = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry}, number = {1}, publisher = {Springer}, address = {Heidelberg}, issn = {0940-1334}, doi = {10.1007/s00406-014-0519-3}, pages = {35 -- 43}, year = {2015}, abstract = {Fluid intelligence (fluid IQ), defined as the capacity for rapid problem solving and behavioral adaptation, is known to be modulated by learning and experience. Both stressful life events (SLES) and neural correlates of learning [specifically, a key mediator of adaptive learning in the brain, namely the ventral striatal representation of prediction errors (PE)] have been shown to be associated with individual differences in fluid IQ. Here, we examine the interaction between adaptive learning signals (using a well-characterized probabilistic reversal learning task in combination with fMRI) and SLES on fluid IQ measures. We find that the correlation between ventral striatal BOLD PE and fluid IQ, which we have previously reported, is quantitatively modulated by the amount of reported SLES. Thus, after experiencing adversity, basic neuronal learning signatures appear to align more closely with a general measure of flexible learning (fluid IQ), a finding complementing studies on the effects of acute stress on learning. The results suggest that an understanding of the neurobiological correlates of trait variables like fluid IQ needs to take socioemotional influences such as chronic stress into account.}, language = {en} } @article{WolffSchindlerBrand2015, author = {Wolff, Wanja and Schindler, Sebastian and Brand, Ralf}, title = {The Effect of Implicitly Incentivized Faking on Explicit and Implicit Measures of Doping Attitude: When Athletes Want to Pretend an Even More Negative Attitude to Doping}, series = {PLoS one}, volume = {10}, journal = {PLoS one}, number = {4}, publisher = {PLoS}, address = {San Fransisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0118507}, pages = {10}, year = {2015}, abstract = {The Implicit Association Test (IAT) aims to measure participants' automatic evaluation of an attitude object and is useful especially for the measurement of attitudes related to socially sensitive subjects, e.g. doping in sports. Several studies indicate that IAT scores can be faked on instruction. But fully or semi-instructed research scenarios might not properly reflect what happens in more realistic situations, when participants secretly decide to try faking the test. The present study is the first to investigate IAT faking when there is only an implicit incentive to do so. Sixty-five athletes (22.83 years +/- 2.45; 25 women) were randomly assigned to an incentive-to-fake condition or a control condition. Participants in the incentive-to-fake condition were manipulated to believe that athletes with lenient doping attitudes would be referred to a tedious 45-minute anti-doping program. Attitudes were measured with the pictorial doping brief IAT (BIAT) and with the Performance Enhancement Attitude Scale (PEAS). A one-way MANOVA revealed significant differences between conditions after the manipulation in PEAS scores, but not in the doping BIAT. In the light of our hypothesis this suggests that participants successfully faked an exceedingly negative attitude to doping when completing the PEAS, but were unsuccessful in doing so on the reaction time-based test. This study assessed BIAT faking in a setting that aimed to resemble a situation in which participants want to hide their attempts to cheat. The two measures of attitude were differentially affected by the implicit incentive. Our findings provide evidence that the pictorial doping BIAT is relatively robust against spontaneous and naive faking attempts. (B) IATs might be less prone to faking than implied by previous studies.}, language = {en} } @article{ReibisHuberKaroffetal.2015, author = {Reibis, Rona Katharina and Huber, Matthias and Karoff, Marthin and Kamke, Wolfram and Kreutz, Reinhold and Wegscheider, Karl and V{\"o}ller, Heinz}, title = {Target organ damage and control of cardiovascular risk factors in hypertensive patients Evidence from the multicenter ESTher registry}, series = {Herz : cardiovascular diseases}, volume = {40}, journal = {Herz : cardiovascular diseases}, publisher = {Urban \& Vogel}, address = {M{\"u}nchen}, issn = {0340-9937}, doi = {10.1007/s00059-014-4189-8}, pages = {209 -- 216}, year = {2015}, abstract = {This study investigated the incidence of hypertensive target organ damage (TOD), control of cardiovascular risk factors, and the short-term prognosis in hypertensive patients under contemporary guideline-oriented therapy. A total of 1,377 consecutive patients (mean age 58.2 +/- 9.9 years, 82.2 \% male) with arterial hypertension were included in the ESTher (Endorganschaden, Therapie und Verlauf - target organ damage, therapy, and course) registry at 15 rehabilitation clinics within the framework of the National Genome Research Network. Cardiovascular risk factors, medication, comorbidities, and glomerular filtration rate (GFR) were assessed. Left ventricular hypertrophy (LVH), left ventricular mass (LVM), left ventricular mass index (LVMI), and left ventricular ejection fraction (LVEF) were determined by two-dimensional echocardiography. The mean follow-up was 513 +/- 159 days. Changes in continuous parameters were tested by the t test, changes in discrete characteristics are presented by means of transition tables and tested with the McNemar test. The mean LVEF was 59.3 +/- 9.9 \%, both mean LVM (238.6 +/- 101.5 g) and LVMI (54.0 +/- 23.6 g/m(2.7)) were increased while relative wall thickness (RWT, 0.46 +/- 0.18) indicated the presence of concentric LVH. Of the patients, 10.2 \% displayed renal dysfunction (estimated GFR < 60 ml/min/1.73 m(2)). The 1.5-year overall mortality was 1.2 \%. Compared with discharge, at follow-up the proportion of patients with blood pressure (BP) values < 140/90 mmHg decreased from 68.7 \% to 55.0 \% (p < 0.001) and with low-density lipoprotein (LDL) values < 100 mg/dl from 62.6 \% to 38.1 \% (p < 0.001). At follow-up significantly more patients displayed a GFR value of < 60 ml/min/1.73 m(2) (10.2 \% vs. 16.0 \%, p < 0.001). A significant proportion of hypertensive rehabilitation participants displayed TOD including LVH and renal dysfunction. Even after stringent BP reduction, a considerable increase in nephropathy could be found after 18 months.}, language = {en} }