Stefan Sell
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View article: Predicting 3D ground reaction forces across various movement tasks: a convolutional neural network study comparing different inertial measurement unit configurations
Predicting 3D ground reaction forces across various movement tasks: a convolutional neural network study comparing different inertial measurement unit configurations Open
Ground reaction forces (GRFs) are crucial for understanding movement biomechanics and for assessing the load on the musculoskeletal system. While inertial measurement units (IMUs) are increasingly used for gait analysis in natural environm…
View article: Hip and trunk biomechanics and dynamic balance during steady-state stair walking in people with mild-to-moderate hip osteoarthritis
Hip and trunk biomechanics and dynamic balance during steady-state stair walking in people with mild-to-moderate hip osteoarthritis Open
Stair walking is more demanding than level walking, and differences have been found between steady-state stair walking and gait-to-stair or stair-to-gait transition. However, there is limited knowledge on steady-state stair walking biomech…
View article: Mental health in the first year after ICU-treated sepsis: Analysis of administrative diagnoses in German health claims data
Mental health in the first year after ICU-treated sepsis: Analysis of administrative diagnoses in German health claims data Open
MHI is common among sepsis survivors, particularly in those affected by any pre-existing psychological diagnoses. Early assessment of pre-existing psychopathology might help to identify patients at risk for prevention or treatment interven…
View article: Effects of deliberate practice and structured feedback in psychotherapy training (DeeP): a study protocol of a randomized-control-trial
Effects of deliberate practice and structured feedback in psychotherapy training (DeeP): a study protocol of a randomized-control-trial Open
Background Psychotherapeutic competencies encompass a variety of skills that influence the work and therapeutic success of psychotherapists. In particular, interpersonal skills and the associated ability to react appropriately in complex t…
View article: Development of an IMU-based motion capture system for swimming: A study protocol
Development of an IMU-based motion capture system for swimming: A study protocol Open
Optical motion capture systems are the gold standard for collecting three-dimensional kinematic data in sports. However, while their use in flow channels is somewhat practical, they are difficult to employ in swimming pools, e.g. due to ca…
View article: Impact of a Semi-Rigid Knee Orthotic Intervention on Pain, Physical Activity, and Functional Capacity in Patients with Medial Knee Osteoarthritis
Impact of a Semi-Rigid Knee Orthotic Intervention on Pain, Physical Activity, and Functional Capacity in Patients with Medial Knee Osteoarthritis Open
Background: The effectiveness of knee orthoses as part of conservative treatment for patients with medial knee osteoarthritis has not been fully explored. The purpose of this study was to evaluate the effects of a novel semi-rigid knee ort…
View article: Effects of hip osteoarthritis on lower body joint kinematics during locomotion tasks: a systematic review and meta-analysis
Effects of hip osteoarthritis on lower body joint kinematics during locomotion tasks: a systematic review and meta-analysis Open
Introduction Motion analysis can be used to gain information needed for disease diagnosis as well as for the design and evaluation of intervention strategies in patients with hip osteoarthritis (HOA). Thereby, joint kinematics might be of …
View article: Sepsis survivors and caregivers perspectives on post–acute rehabilitation and aftercare in the first year after sepsis in Germany
Sepsis survivors and caregivers perspectives on post–acute rehabilitation and aftercare in the first year after sepsis in Germany Open
Background Sepsis survivors often suffer from new morbidities. Current rehabilitation therapies are not tailored to their specific needs. The perspective of sepsis survivors and their caregivers on rehabilitation and aftercare is insuffici…
View article: Effects of Hip Bracing on Gait Biomechanics, Pain and Function in Subjects With Mild to Moderate Hip Osteoarthritis
Effects of Hip Bracing on Gait Biomechanics, Pain and Function in Subjects With Mild to Moderate Hip Osteoarthritis Open
Hip Osteoarthritis (HOA) is a common joint disease with serious impact on the quality of life of the affected persons. Additionally, persons with HOA often show alterations in gait biomechanics. Developing effective conservative treatment …
View article: Modularity in Motor Control: Similarities in Kinematic Synergies Across Varying Locomotion Tasks
Modularity in Motor Control: Similarities in Kinematic Synergies Across Varying Locomotion Tasks Open
Kinematic synergies (kSYN) provide an approach to quantify the covariation of joint motions and to explain the mechanisms underlying human motor behavior. A low-dimensional control strategy by means of the activation of a moderate number o…
View article: Effect of Different Knee Braces in ACL-Deficient Patients
Effect of Different Knee Braces in ACL-Deficient Patients Open
Knee braces are often used during rehabilitation after ACL injury. There are two main concepts, rigid and soft braces, but studies comparing the two show conflicting results. Most studies used movement tasks with low translational or rotat…
View article: A Machine Learning and Wearable Sensor Based Approach to Estimate External Knee Flexion and Adduction Moments During Various Locomotion Tasks
A Machine Learning and Wearable Sensor Based Approach to Estimate External Knee Flexion and Adduction Moments During Various Locomotion Tasks Open
Joint moment measurements represent an objective biomechanical parameter of knee joint load in knee osteoarthritis (KOA). Wearable sensors in combination with machine learning techniques may provide solutions to develop assistive devices i…
View article: Estimation of Knee Joint Forces in Sport Movements Using Wearable Sensors and Machine Learning
Estimation of Knee Joint Forces in Sport Movements Using Wearable Sensors and Machine Learning Open
Knee joint forces (KJF) are biomechanical measures used to infer the load on knee joint structures. The purpose of this study is to develop an artificial neural network (ANN) that estimates KJF during sport movements, based on data obtaine…
View article: How does functionality proceed in ACL reconstructed subjects? Proceeding of functional performance from pre- to six months post-ACL reconstruction
How does functionality proceed in ACL reconstructed subjects? Proceeding of functional performance from pre- to six months post-ACL reconstruction Open
This is the first study examining functionality of subjects with anterior cruciate ligament (ACL) tears and a subsequent reconstruction comprehensively by multiple test sessions from pre- to six months post-reconstruction. The purpose was …