Steffen Schmidt
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View article: Body Composition and Its Correlates in Children and Adolescents Living in Germany: A Cross‐Sectional Study
Body Composition and Its Correlates in Children and Adolescents Living in Germany: A Cross‐Sectional Study Open
Body composition is an important health parameter during childhood and adolescence. In this study, we investigate the associations between body composition and age, physical activity, side jump, standing long jump, physical working capacit…
View article: An index for unitarizable $\mathfrak{sl}(m\vert n)$-supermodules
An index for unitarizable $\mathfrak{sl}(m\vert n)$-supermodules Open
The "superconformal index" is a character-valued invariant attached by theoretical physics to unitary representations of Lie superalgebras, such as $\mathfrak{su}(2,2\vert n)$, that govern certain quantum field theories. The index can be c…
View article: Socio-structural determinants of physical activity behavior in children and adolescents: The importance of social support
Socio-structural determinants of physical activity behavior in children and adolescents: The importance of social support Open
The purpose of this study is to analyze the influence of socio-structural determinants of physical activity (PA) behavior in children and adolescents. We expected that socioeconomic status, social support, and physical environment influenc…
View article: New insights on the formation of the polymetamorphic Felbertal tungsten deposit (Austria, Eastern Alps) revealed by CL, EPMA, and LA-ICP-MS investigation
New insights on the formation of the polymetamorphic Felbertal tungsten deposit (Austria, Eastern Alps) revealed by CL, EPMA, and LA-ICP-MS investigation Open
The Felbertal tungsten deposit is the only economic scheelite mine in Europe, yet its genesis is not fully understood. It has been argued recently that the formation of the deposit is most likely related to granitic intrusions of Variscan …
View article: The Bougrine Zn-Pb deposit, the largest salt diapir-related Mississippi Valley-type deposit in the Eastern Maghreb salt diapir province, Tunisia
The Bougrine Zn-Pb deposit, the largest salt diapir-related Mississippi Valley-type deposit in the Eastern Maghreb salt diapir province, Tunisia Open
The Bougrine Zn-Pb sulfide deposit (5.5 Mt @ 12 % Zn + 2.5 % Pb) in the Eastern Maghreb salt diapir province of Tunisia is located at the northeastern end of the Lorbeus-Bougrine diapir. The several-km large diapir is composed of Triassic …
View article: Associations between physical activity, physical fitness, and body composition in adults living in Germany: A cross-sectional study
Associations between physical activity, physical fitness, and body composition in adults living in Germany: A cross-sectional study Open
Background & aims Body composition (BC) changes with age and is associated with morbidity and mortality. A physically active lifestyle influences BC and represents an important predictor of successful aging. To emphasize this, the World He…
View article: Integrating Neuromonitoring in Pediatric Emergency Medicine: Exploring Two Options for Point-of-Care Electroencephalogram (pocEEG) via Patient Monitors—A Technical Note
Integrating Neuromonitoring in Pediatric Emergency Medicine: Exploring Two Options for Point-of-Care Electroencephalogram (pocEEG) via Patient Monitors—A Technical Note Open
Central nervous system (CNS) disorders are among the most frequent presentations in critically ill children. Status epilepticus (SE) is a frequent scenario in the resuscitation bay. In patients with altered mental status, non-convulsive SE…
View article: O.4.5-5 Are more active children healthier in the long run? – Results from the MoMo study
O.4.5-5 Are more active children healthier in the long run? – Results from the MoMo study Open
Purpose Various recommendations emphasize the importance of regular physical activity (PA) for building and maintaining health in adults as well as in children and adolescents. Using longitudinal data from the German MoMo study, this analy…
View article: How specific combinations of epoch length, non-wear time and cut-points influence physical activity
How specific combinations of epoch length, non-wear time and cut-points influence physical activity Open
This study assesses three factors that influence the quantification of children’s and adolescents’ physical activity (PA) using accelerometers: selection of (1) non-wear algorithm, (2) epoch length and (3) cut-points. A total of 1525 parti…
View article: Longitudinal associations between physical activity and five risk factors of metabolic syndrome in middle-aged adults in Germany
Longitudinal associations between physical activity and five risk factors of metabolic syndrome in middle-aged adults in Germany Open
Background We examined the longitudinal association between (change in) physical activity (PA) with new onset of five risk factors of metabolic syndrome among 657 middle-aged adults (mean age 44.1 (standard deviation (SD) 8.6) years) who w…
View article: A Study on the Psychometric Properties of the Short Version of the Physical Activity Enjoyment Scale in an Adult Population
A Study on the Psychometric Properties of the Short Version of the Physical Activity Enjoyment Scale in an Adult Population Open
A new measure of the short form of the Physical Activity Enjoyment Scale (PACES-S), including four items, has been developed that focuses on the subjective experience of enjoyment. As validation has so far only been conducted in a youth po…
View article: Physical Activity and Recurrent Pain in Children and Adolescents in Germany—Results from the MoMo Study
Physical Activity and Recurrent Pain in Children and Adolescents in Germany—Results from the MoMo Study Open
Recurrent pain can be a significant disruption in the activities of daily life, and is not only a health problem in adults but also in children and adolescents. This study analyzed the prevalence of recurrent pain in the current sample (n …
View article: Community networks of sport and physical activity promotion: an analysis of structural properties and conditions of cooperation
Community networks of sport and physical activity promotion: an analysis of structural properties and conditions of cooperation Open
Background: The importance of intersectoral cooperation networks among community organizations located in people’s immediate environments in addressing population health problems such as physical inactivity has come into focus in recent ye…
View article: Physical activity in 9–15 year-old pediatric cancer survivors compared to a nationwide sample
Physical activity in 9–15 year-old pediatric cancer survivors compared to a nationwide sample Open
Introduction Sufficient physical activity (PA) has the potential to mitigate late effects of cancer, but objective data of PA levels in adolescents are scarce. The aim of this study was to investigate differences in PA behavior between chi…
View article: The Use of Compression Stockings to Reduce Water Retention in the Legs During Gaming and Esports: Randomized Controlled Field Study
The Use of Compression Stockings to Reduce Water Retention in the Legs During Gaming and Esports: Randomized Controlled Field Study Open
Background With the increasing digitalization of daily life, internet-based entertainment such as gaming and streaming has advanced to one of the megatrends of the 21st century. Besides offering a multitude of controversially discussed opp…
View article: Impact of weekdays versus weekend days on accelerometer measured physical behavior among children and adolescents: results from the MoMo study
Impact of weekdays versus weekend days on accelerometer measured physical behavior among children and adolescents: results from the MoMo study Open
Structured activities, in which children participate for example at school, are consistent and limited in scope. After-school or weekend activities, by contrast, involve a wider range of behaviors. Studies have shown that physical activity…
View article: Quality Evaluation of Free-living Validation Studies for the Assessment of 24-Hour Physical Behavior in Adults via Wearables: Systematic Review
Quality Evaluation of Free-living Validation Studies for the Assessment of 24-Hour Physical Behavior in Adults via Wearables: Systematic Review Open
Background Wearable technology is a leading fitness trend in the growing commercial industry and an established method for collecting 24-hour physical behavior data in research studies. High-quality free-living validation studies are requi…
View article: TRIM4Post-Mining: Transition Information Modelling for Attractive Post-Mining Landscapes—A Conceptual Framework
TRIM4Post-Mining: Transition Information Modelling for Attractive Post-Mining Landscapes—A Conceptual Framework Open
TRIM4Post-Mining is a H2020/RFCS-funded project that brings together a consortium of European experts from industry and academia to develop an integrated information modelling system. This is designed to support decision making and plannin…
View article: Changes of Self-Rated Health Status, Overweight and Physical Activity During Childhood and Adolescence—The Ratchet Effect of High Parental Socioeconomic Status
Changes of Self-Rated Health Status, Overweight and Physical Activity During Childhood and Adolescence—The Ratchet Effect of High Parental Socioeconomic Status Open
Childhood and adolescence are important life periods for the development of health status and physical activity (PA) behaviours. This study analyses the stability and potential changes of self-rated health status, overweight and PA behavio…
View article: Quality Evaluation of Free-living Validation Studies for the Assessment of 24-Hour Physical Behavior in Adults via Wearables: Systematic Review (Preprint)
Quality Evaluation of Free-living Validation Studies for the Assessment of 24-Hour Physical Behavior in Adults via Wearables: Systematic Review (Preprint) Open
BACKGROUND Wearable technology is a leading fitness trend in the growing commercial industry and an established method for collecting 24-hour physical behavior data in research studies. High-quality free-living validation studies are requ…
View article: Relationship between Birth Weight, Early Growth Rate, and Body Composition in 5- to 7-Year-Old Children
Relationship between Birth Weight, Early Growth Rate, and Body Composition in 5- to 7-Year-Old Children Open
Background: Programing of body composition during intrauterine growth may contribute to the higher risk for cardio-metabolic disease in individuals born small or large for gestational age (SGA, LGA). Compensations of intrauterine growth by…
View article: Influence of socioeconomic variables on physical activity and screen time of children and adolescents during the COVID‑19 lockdown in Germany: the MoMo study
Influence of socioeconomic variables on physical activity and screen time of children and adolescents during the COVID‑19 lockdown in Germany: the MoMo study Open
The COVID‑19 (coronavirus disease 2019) pandemic created a multitude of natural experiments about the change of human behavior in a widely unfamiliar situation. Besides physical and mental health, physical activity (PA) and people’s moveme…
View article: A Short Version of the Physical Activity Enjoyment Scale: Development and Psychometric Properties
A Short Version of the Physical Activity Enjoyment Scale: Development and Psychometric Properties Open
Objective: The purposes of this paper were to (a) develop a new short, theory-driven, version of the physical activity enjoyment scale (PACES-S) using content analysis; and (b) subsequently to measure the psychometric properties (construct…
View article: Indicators to Assess Physical Health of Children and Adolescents in Activity Research—A Scoping Review
Indicators to Assess Physical Health of Children and Adolescents in Activity Research—A Scoping Review Open
Sufficient physical activity can help promote and maintain health, while its lack can jeopardize it. Since health and physical activity lay their foundation for later life in childhood and adolescence, it is important to examine this relat…