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Institute
- Department Sport- und Gesundheitswissenschaften (1472) (remove)
Der tänzerische Kreativitätstest stellt ein valides Instrumentarium dar, welches auf tanzspezifischen Aufgaben basiert und für die differenzierte und standardisierte Erfassung der tänzerischen Kreativität bei Kindern im Alter von 8 bis 12 Jahren konzipiert ist. Mit dem tänzerischen Kreativitätstest können nicht nur Fragestellungen zum Stand sowie zur Entwicklung tänzerisch-kreativer Fähigkeiten im Kindesalter bearbeitet werden, sondern er liefert auch wertvolle Informationen für die Optimierung von Trainings-, Förder- und Vermittlungsmaßnahmen. Erfasst werden folgende tänzerisch-kreativen Fähigkeiten: 1) Vielfalt und Originalität in der Fortbewegung und in Körperpositionen sowie 2) Ideenreichtum, Vielfalt und Originalität in der Gestaltung von Bewegungspatterns und -kompositionen. Dieser Test lässt sich mit größeren Gruppen und minimalem materiellen Aufwand durchführen, ist zeitlich unbeschränkt und ermöglicht es, unterschiedliche Leistungsniveaus zu identifizieren. Der tänzerische Kreativitätstest bietet Forschenden und Lehrkräften eine wertvolle Möglichkeit, die tänzerisch-kreativen Fähigkeiten von Kindern zu analysieren und zu fördern.
To grant high-quality evidence-based research in the field of exercise sciences, it is often necessary for various institutions to collaborate over longer distances and internationally. Here, not only with regard to the recent COVID-19-pandemic, digital means provide new options for remote scientific exchanges. This thesis is meant to analyse and test digital opportunities to support the dissemination of knowledge and instruction of investigators about defined examination protocols in an international multi-center context.
The project consisted of three studies. The first study, a questionnaire-based survey, aimed at learning about the opinions and preferences of digital learning or social media among students of sport science faculties in two universities each in Germany, the UK and Italy. Based on these findings, in a second study, an examination video of an ultrasound determination of the intima-media-thickness and diameter of an artery was distributed by a messenger app to doctors and nursing personnel as simulated investigators and efficacy of the test setting was analysed. Finally, a third study integrated the use of an augmented reality device for direct remote supervision of the same ultrasound examinations in a long-distance international setting with international experts from the fields of engineering and sports science and later remote supervision of augmented reality equipped physicians performing a given task.
The first study with 229 participating students revealed a high preference for YouTube to receive video-based knowledge as well as a preference for using WhatsApp and Facebook for peer-to-peer contacts for learning purposes and to exchange and discuss knowledge. In the second study, video-based instructions send by WhatsApp messenger
showed high approval of the setup in both study groups, one with doctors familiar with the use of ultrasound technology as well as one with nursing staff who were not familiar with the device, with similar results in overall time of performance and the measurements of the femoral arteries. In the third and final study, experts from different continents were connected remotely to the examination site via an augmented reality device with good transmission quality. The remote supervision to doctors ́ examination produced a good interrater correlation. Experiences with the augmented reality-based setting were rated as highly positive by the participants. Potential benefits of this technique were seen in the fields of education, movement analysis, and supervision.
Concluding, the findings of this thesis were able to suggest modern and addressee- centred digital solutions to enhance the understanding of given examinations techniques of potential investigators in exercise science research projects. Head-mounted augmented reality devices have a special value and may be recommended for collaborative research projects with physical examination–based research questions. While the established setting should be further investigated in prospective clinical studies, digital competencies of future researchers should already be enhanced during the early stages of their education.
Satisfaction and frustration of the needs for autonomy, competence, and relatedness, as assessed with the 24-item Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS), have been found to be crucial indicators of individuals’ psychological health. To increase the usability of this scale within a clinical and health services research context, we aimed to validate a German short version (12 items) of this scale in individuals with depression including the examination of the relations from need frustration and need satisfaction to ill-being and quality of life (QOL). This cross-sectional study involved 344 adults diagnosed with depression (Mage (SD) = 47.5 years (11.1); 71.8% females). Confirmatory factor analyses indicated that the short version of the BPNSFS was not only reliable, but also fitted a six-factor structure (i.e., satisfaction/frustration X type of need). Subsequent structural equation modeling showed that need frustration related positively to indicators of ill-being and negatively to QOL. Surprisingly, need satisfaction did not predict differences in ill-being or QOL. The short form of the BPNSFS represents a practical instrument to measure need satisfaction and frustration in people with depression. Further, the results support recent evidence on the importance of especially need frustration in the prediction of psychopathology.
Satisfaction and frustration of the needs for autonomy, competence, and relatedness, as assessed with the 24-item Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS), have been found to be crucial indicators of individuals’ psychological health. To increase the usability of this scale within a clinical and health services research context, we aimed to validate a German short version (12 items) of this scale in individuals with depression including the examination of the relations from need frustration and need satisfaction to ill-being and quality of life (QOL). This cross-sectional study involved 344 adults diagnosed with depression (Mage (SD) = 47.5 years (11.1); 71.8% females). Confirmatory factor analyses indicated that the short version of the BPNSFS was not only reliable, but also fitted a six-factor structure (i.e., satisfaction/frustration X type of need). Subsequent structural equation modeling showed that need frustration related positively to indicators of ill-being and negatively to QOL. Surprisingly, need satisfaction did not predict differences in ill-being or QOL. The short form of the BPNSFS represents a practical instrument to measure need satisfaction and frustration in people with depression. Further, the results support recent evidence on the importance of especially need frustration in the prediction of psychopathology.
The field of exercise psychology has established robust evidence on the health benefits of physical activity. However, interventions to promote sustained exercise behavior have often proven ineffective. This dissertation addresses challenges in the field, particularly the neglect of situated and affective processes in understanding and changing exercise behavior. Dual process models, considering both rational and affective processes, have gained recognition. The Affective Reflective Theory of Physical Inactivity and Exercise (ART) is a notable model in this context, positing that situated processes in-the-moment of choice influence exercise decisions and subsequent exercise behavior.
The dissertation identifies current challenges within exercise psychology and proposes methodological and theoretical advancements. It emphasizes the importance of momentary affective states and situated processes, offering alternatives to self-reported measures and advocating for a more comprehensive modeling of individual variability. The focus is on the affective processes during exercise, theorized to reappear in momentary decision-making, shaping overall exercise behavior.
The first publication introduces a new method by using automated facial action analysis to measure variable affective responses during exercise. It explores how these behavioral indicators covary with self-reported measures of affective valence and perceived exertion. The second publication delves into situated processes at the moment of choice between exercise and non-exercise options, revealing that intraindividual factors play a crucial role in explaining exercise-related choices. The third publication presents an open-source research tool, the Decisional Preferences in Exercising Test (DPEX), designed to capture repeated situated decisions and predict exercise behavior based on past experiences.
The findings challenge previous assumptions and provide insights into the complex interplay of affective responses, situated processes, and exercise choices. The dissertation underscores the need for individualized interventions that manipulate affective responses during exercise and calls for systematic testing to establish causal links to automatic affective processes and subsequent exercise behavior. This dissertation highlights the necessity for methodological and conceptual refinements in understanding and promoting exercise behavior, ultimately contributing to the broader goal of combating increasing inactivity trends.
Background and aims:
To succeed in competition, elite team and individual athletes often seek the development of both, high levels of muscle strength and power as well as cardiorespiratory endurance. In this context, concurrent training (CT) is a commonly applied and effective training approach. While being exposed to high training loads, youth athletes (≤ 18 years) are yet underrepresented in the scientific literature. Besides, immunological responses to CT have received little attention. Therefore, the aims of this work were to examine the acute (< 15min) and delayed (≥ 6 hours) effects of dif-ferent exercise order in CT on immunological stress responses, muscular fitness, metabolic response, and rating of perceived exertion (RPE) in highly trained youth male and female judo athletes.
Methods:
A total of twenty male and thirteen female participants, with an average age of 16 ± 1.8 years and 14.4 ± 2.1 years, respectively, were included in the study. They were randomly assigned to two CT sessions; power-endurance versus endurance-power (i.e., study 1), or strength-endurance versus endurance-strength (i.e., study 2). Markers of immune response (i.e., white-blood-cells, granulocytes, lymphocytes, mon-ocytes, and lymphocytes, granulocyte-lymphocyte-ratio, and systemic-inflammation-index), muscular fitness (i.e., counter-movement jump [CMJ]), metabolic responses (i.e., blood lactate, glucose), and RPE were collected at different time points (i.e., PRE12H, PRE, MID, POST, POST6H, POST22H).
Results (study 1):
There were significant time*order interactions for white-blood-cells, lymphocytes, granulocytes, monocytes, granulocyte-lymphocyte-ratio, and systemic-inflammation-index. The power-endurance order resulted in significantly larger PRE-to-POST increases in white-blood-cells, monocytes, and lymphocytes while the endur-ance-power order resulted in significantly larger PRE-to-POST increases in the granu-locyte-lymphocyte-ratio and systemic-inflammation-index. Likewise, significantly larger increases from PRE-to-POST6H in white-blood-cells and granulocytes were observed following the power-endurance order compared to endurance-power. All markers of immune response returned toward baseline values at POST22H. Moreover, there was a significant time*order interaction for blood glucose and lactate. Following the endur-ance-power order, blood lactate and glucose increased from PRE-to-MID but not from PRE-to-POST. Meanwhile, in the power-endurance order blood lactate and glucose increased from PRE-to-POST but not from PRE-to-MID. A significant time*order inter-action was observed for CMJ-force with larger PRE-to-POST decreases in the endur-ance-power order compared to power-endurance order. Further, CMJ-power showed larger PRE-to-MID performance decreases following the power-endurance order, com-pared to the endurance-power order. Regarding RPE, significant time*order interactions were noted with larger PRE-to-MID values following the endurance-power order and larger PRE-to-POST values following the power-endurance order.
Results (study 2):
There were significant time*order interactions for lymphocytes, monocytes, granulocyte-lymphocyte-ratio, and systemic-inflammation-index. The strength-endurance order resulted in significantly larger PRE-to-POST increases in lymphocytes while the endurance-strength order resulted in significantly larger PRE-to-POST increases in the granulocyte-lymphocyte-ratio and systemic-inflammation-index. All markers of the immune system returned toward baseline values at POST22H. Moreover, there was a significant time*order interaction for blood glucose and lactate. From PRE-to-MID, there was a significantly greater increase in blood lactate and glu-cose following the endurance-strength order compared to strength-endurance order. Meanwhile, from PRE-to-POST there was a significantly higher increase in blood glu-cose following the strength-endurance order compared to endurance-strength order. Regarding physical fitness, a significant time*order interaction was observed for CMJ-force and CMJ-power with larger PRE-to-MID increases following the endurance-strength order compared to the strength-endurance order. For RPE, significant time*order interactions were noted with larger PRE-to-MID values following the endur-ance-power order and larger PRE-to-POST values following the power-endurance or-der.
Conclusions:
The primary findings from both studies revealed order-dependent effects on immune responses. In male youth judo athletes, the results demonstrated greater immunological stress responses, both immediately (≤ 15 min) and delayed (≥ 6 hours), following the power-endurance order compared to the endurance-power order. For female youth judo athletes, the results indicated higher acute, but not delayed, order-dependent changes in immune responses following the strength-endurance order compared to the endurance-strength order. It is worth noting that in both studies, all markers of immune system response returned to baseline levels within 22 hours. This suggests that successful recovery from the exercise-induced immune stress response was achieved within 22 hours. Regarding metabolic responses, physical fitness, and perceived exertion, the findings from both studies indicated acute (≤ 15 minutes) alterations that were dependent on the exercise order. These alterations were primarily influ-enced by the endurance exercise component. Moreover, study 1 provided substantial evidence suggesting that internal load measures, such as immune markers, may differ from external load measures. This indicates a disparity between immunological, perceived, and physical responses following both concurrent training orders. Therefore, it is crucial for practitioners to acknowledge these differences and take them into consideration when designing training programs.
Exercise or not?
(2023)
Objective: Individuals’ decisions to engage in exercise are often the result of in-the-moment choices between exercise and a competing behavioral alternative. The purpose of this study was to investigate processes that occur in-the-moment (i.e., situated processes) when individuals are faced with the choice between exercise and a behavioral alternative during a computerized task. These were analyzed against the background of interindividual differences in individuals’ automatic valuation and controlled evaluation of exercise.
Method: In a behavioral alternatives task 101 participants were asked whether they would rather choose an exercise option or a behavioral alternative in 25 trials. Participants’ gaze behavior (first gaze and fixations) was recorded using eye-tracking. An exercise-specific affect misattribution procedure (AMP) was used to assess participants’ automatic valuation of exercise before the task. After the task, self-reported feelings towards exercise (controlled evaluation) and usual weekly exercise volume were assessed. Mixed effects models with random effects for subjects and trials were used for data analysis.
Results: Choosing exercise was positively correlated with individuals’ automatic valuation (r = 0.20, p = 0.05), controlled evaluation (r = 0.58, p < 0.001), and their weekly exercise volume (r = 0.43, p < 0.001). Participants showed no bias in their initial gaze or number of fixations towards the exercise or the non-exercise alternative. However, participants were 1.30 times more likely to fixate on the chosen alternative first and more frequently, but this gaze behavior was not related to individuals’ automatic valuation, controlled evaluation, or weekly exercise volume.
Conclusion: The results suggest that situated processes arising from defined behavioral alternatives may be independent of individuals’ general preferences. Despite one’s best general intention to exercise more, the choice of a non-exercise alternative behavior may seem more appealing in-the-moment and eventually be chosen. New psychological theories of health behavior change should therefore better consider the role of potentially conflicting alternatives when it comes to initiating physical activity or exercise.
Exercise or not?
(2023)
Objective: Individuals’ decisions to engage in exercise are often the result of in-the-moment choices between exercise and a competing behavioral alternative. The purpose of this study was to investigate processes that occur in-the-moment (i.e., situated processes) when individuals are faced with the choice between exercise and a behavioral alternative during a computerized task. These were analyzed against the background of interindividual differences in individuals’ automatic valuation and controlled evaluation of exercise.
Method: In a behavioral alternatives task 101 participants were asked whether they would rather choose an exercise option or a behavioral alternative in 25 trials. Participants’ gaze behavior (first gaze and fixations) was recorded using eye-tracking. An exercise-specific affect misattribution procedure (AMP) was used to assess participants’ automatic valuation of exercise before the task. After the task, self-reported feelings towards exercise (controlled evaluation) and usual weekly exercise volume were assessed. Mixed effects models with random effects for subjects and trials were used for data analysis.
Results: Choosing exercise was positively correlated with individuals’ automatic valuation (r = 0.20, p = 0.05), controlled evaluation (r = 0.58, p < 0.001), and their weekly exercise volume (r = 0.43, p < 0.001). Participants showed no bias in their initial gaze or number of fixations towards the exercise or the non-exercise alternative. However, participants were 1.30 times more likely to fixate on the chosen alternative first and more frequently, but this gaze behavior was not related to individuals’ automatic valuation, controlled evaluation, or weekly exercise volume.
Conclusion: The results suggest that situated processes arising from defined behavioral alternatives may be independent of individuals’ general preferences. Despite one’s best general intention to exercise more, the choice of a non-exercise alternative behavior may seem more appealing in-the-moment and eventually be chosen. New psychological theories of health behavior change should therefore better consider the role of potentially conflicting alternatives when it comes to initiating physical activity or exercise.
Krafttraining ist ein etabliertes Mittel für die Entwicklung körperlicher Fitness und sport-artspezifischer Leistungen in verschiedenen Sportarten. Dabei scheint dem Krafttraining auch im Hinblick auf den langfristigen Leistungsaufbau im Nachwuchsleistungssport Rudern eine besondere Rolle zuzukommen. Die vorliegende Arbeit widmet sich der Optimie-rung der Leistungsdiagnostik sowie der Bewertung der Effektivität von Krafttrainingsmethoden zur Verbesserung der körperlichen Fitness und der sportartspezifischen Leistung im Nachwuchsleistungsrudern.
Die erste Studie im Rahmen dieser kumulativen Arbeit beinhaltet die Analyse eines sport-artspezifischen Anforderungsprofils der Sportart Rudern. Die Studienergebnisse zeigen, dass die Energiebereitstellung im Ruderwettkampf zu einem großen Anteil aus aeroben und zu einem geringen Anteil aus anaeroben Stoffwechselprozessen erfolgt. Während der vier Phasen des rudertechnischen Leitbildes werden nahezu alle großen Muskelgruppen beansprucht. Aufgrund der hohen Trainingsumfänge auf internationalem Leistungsniveau besteht bei Ruderern ein erhöhtes Risiko, Verletzungen im lumbalen Rückensegment, den Knien sowie den Rippen zu erleiden.
Im Rahmen der zweiten Studie wurden die Effekte von Krafttraining auf die körperliche Fitness und die sportartspezifische Leistung von Ruderern unterschiedlichen Expertisen-niveaus untersucht. Die Studienergebnisse zeigen, dass signifikante kleine Effekte des Krafttrainings auf die körperliche Fitness (Maximalkraft der unteren Gliedmaßen) und auf die sportartspezifische Leistung existieren. Subgruppenanalysen für Krafttrainingstyp und Expertisenniveau zeigten nicht signifikante Unterschiede zwischen den jeweiligen Subgruppen der Ruderer.
Die dritte Studie analysierte die Zusammenhänge zwischen der biologischen Reife, der Körperkonstitution und der körperlichen Fitness mit der Leistung auf dem Ruderergometer über 700-m bei weiblichen Nachwuchseliteruderern. Die Analyse zeigte signifikante mittle-re bis hohe Zusammenhänge zwischen der biologischen Reife, Kennwerten der Körperkonstitution, der körperlichen Fitness (z. B. Maximalkraft, Kraftausdauer) und der Leistung auf dem Ruderergometer. Zusätzlich konnte gezeigt werden, dass die Prädiktoren Körperkonstitution (Magermasse) und Kraftausdauer (Bourban-Test) die Leistung des 700-m Ruderergometertest am besten abbilden.
Die vierte Studie untersuchte die Effekte von zwei unterschiedlichen Krafttrainingsmetho-den, die jeweils über neun Wochen durchgeführt wurden, auf die körperliche Fitness und die Leistung auf dem Ruderergometer bei weiblichen Elite-Nachwuchsruderern. Die Stu-dienergebnisse zeigen, dass beide Gruppen signifikante Steigerungen auf ausgewählte Komponenten der körperlichen Fitness (z. B. Maximalkraft, Schnellkraft, anaerobe Aus-dauer und Richtungswechselgeschwindigkeit) und die sportartspezifische Leistung erzielten. Signifikant größere Zuwächse resultierten nach Krafttraining mit höheren Intensitäten [HI] bei gleichem Volumen im Vergleich zu Kraftausdauertraining [KA] in ausgewählten Komponenten der körperlichen Fitness (z. B. Maximalkraft). Im Gegensatz dazu, führte KA bei gleichem Volumen im Vergleich zu HI zu größeren Steigerungen der sportartspezifischen Leistung.
Zusammenfassend zeigen die Ergebnisse, dass Krafttraining ein effektives Mittel zur Steigerung ausgewählter Komponenten der körperlichen Fitness und der sportartspezifischen Leistung in der Sportart Rudern für RuderInnen und im Speziellen für den Nachwuchssport ist. Insbesondere im Nachwuchsleistungsrudern zeigte sich, dass HI zusätzlich zum regulären Rudertraining effektiver zur Verbesserung der körperlichen Fitness (z. B. Maximalkraft) ist als KA. Zur Verbesserung der sportartspezifischen Leistung jedoch, stellte KA im Vergleich zu HI bei weiblichen Elite-Nachwuchsruderern die effektivere Krafttrainings-methode dar. Weiterhin wird Trainern im Nachwuchsrudersport empfohlen, ausgewählte Merkmale der biologischen Reife, Körperkonstitution sowie der körperlichen Fitness (Maximalkraft, Kraftausdauer) für die Talententwicklung zu berücksichtigen.
Food Neophilie
(2023)
Trotz der eindeutigen Vorteile einer ausgewogenen Ernährung halten sich viele Menschen weltweit nicht an entsprechende Ernährungsrichtlinien. Um angemessene Strategien zur Unterstützung einer gesundheitsfördernden Ernährung zu entwickeln, ist ein Verständnis der zugrunde liegenden Faktoren unerlässlich. Insbesondere die Gruppe der älteren Erwachsenen stellt dabei eine wichtige Zielgruppe für ernährungsbezogene Präventions- und Interventionsansätze dar. Einer der vielen Faktoren, die als Determinanten einer gesundheitsfördernden Ernährung diskutiert werden, ist die Food Neophilie, also die Bereitschaft, neue und unbekannte Lebensmittel auszuprobieren. Aktuelle Forschungsergebnisse legen nahe, dass die Food Neophilie positiv mit einer gesundheitsfördernden Ernährung in Verbindung steht, allerdings ist die bisherige Forschung in diesem Bereich äußerst begrenzt. Das Ziel der Dissertation war es, das Konstrukt der Food Neophilie sowie seine Beziehung zu gesundheitsförderndem Ernährungsverhalten im höheren Erwachsenenalter grundlegend zu erforschen, um das Potenzial der Food Neophilie für die Gesundheitsförderung älterer Erwachsener besser zu verstehen. Dabei wurde im Rahmen der ersten Publikation zunächst untersucht, wie sich das Konstrukt der Food Neophilie reliabel und valide erfassen lässt, um weiterführende Untersuchungen der Food Neophilie zu ermöglichen. Die psychometrische Validierung der deutschen Version der Variety Seeking Tendency Scale (VARSEEK) basierte auf zwei unabhängigen Stichproben mit insgesamt N = 1000 Teilnehmenden und bestätigte, dass es sich bei der Skala um ein reliables und valides Messinstrument zur Erfassung der Food Neophilie handelt. Darauf aufbauend wurde im Rahmen der zweiten Publikation die Beziehung der Food Neophilie und der Ernährungsqualität über die Zeit hinweg analysiert. Die prospektive Untersuchung von N = 960 Teilnehmenden des höheren Erwachsenenalters (M = 63.4 Jahre) anhand einer Cross-Lagged-Panel-Analyse ergab hohe zeitliche Stabilitäten der Food Neophilie und der Ernährungsqualität über einen Zeitraum von drei Jahren. Es zeigte sich zudem ein positiver querschnittlicher Zusammenhang zwischen der Food Neophilie und der Ernährungsqualität, jedoch wurde die Food Neophilie nicht als signifikante Determinante der Ernährungsqualität über die Zeit hinweg identifiziert. In der dritten Publikation wurden schließlich nicht nur die individuellen Auswirkungen der Food Neophilie auf die Ernährungsqualität betrachtet, sondern auch potenzielle dynamische Wechselwirkungen innerhalb von Partnerschaften einbezogen. Hierzu erfolgte mittels eines Actor-Partner-Interdependence-Modells eine Differenzierung potenzieller intra- und interpersoneller Einflüsse der Food Neophilie auf die Ernährungsqualität. Im Rahmen der dyadischen Analyse zeigte sich bei N = 390 heterosexuellen Paaren im höheren Erwachsenenalter (M = 64.0 Jahre) ein Dominanzmuster: Während die Food Neophilie der Frauen positiv mit ihrer eigenen Ernährungsqualität und der ihrer Partner zusammenhing, war die Food Neophilie der Männer nicht mit der Ernährungsqualität des Paares assoziiert. Insgesamt leistet die vorliegende Dissertation einen wertvollen Beitrag zum umfassenden Verständnis der Food Neophilie sowie ihrer Rolle im Kontext der Ernährungsgesundheit älterer Erwachsener. Trotz fehlender Vorhersagekraft über die Zeit hinweg deutet der positive Zusammenhang zwischen Food Neophilie und Ernährungsqualität darauf hin, dass die Fokussierung auf eine positive und neugierige Einstellung gegenüber Lebensmitteln eine innovative Perspektive für Präventions- und Interventionsansätze zur Unterstützung einer gesundheitsfördernden Ernährung älterer Erwachsener bieten könnte.