Prediction of Model Generated Patellofemoral Joint Contact Forces Using Principal Component Prediction and Reconstruction
J Appl Biomech. 2023 Aug 26:1-7. doi: 10.1123/jab.2022-0247. Online ahead of print.ABSTRACTIt is not currently possible to directly and noninvasively measure in vivo patellofemoral joint contact force during dynamic movement; therefore, indirect methods are required. Simple models may be inaccurate because patellofemoral contact forces vary for the same knee flexion angle, and the patellofemoral joint has substantial out-of-plane motion. More sophisticated models use 3-dimensional kinematics and kinetics coupled to a subject-specific anatomical model to predict contact forces; however, these models are time consuming and e...
Source: Journal of Applied Biomechanics - August 26, 2023 Category: Sports Medicine Authors: Myles Ashall Mitchell G A Wheatley Chris Saliba Kevin J Deluzio Michael J Rainbow Source Type: research

A Narrative Review of Personalized Musculoskeletal Modeling Using the Physiome and Musculoskeletal Atlas Projects
J Appl Biomech. 2023 Aug 22:1-14. doi: 10.1123/jab.2023-0079. Online ahead of print.ABSTRACTIn this narrative review, we explore developments in the field of computational musculoskeletal model personalization using the Physiome and Musculoskeletal Atlas Projects. Model geometry personalization; statistical shape modeling; and its impact on segmentation, classification, and model creation are explored. Examples include the trapeziometacarpal and tibiofemoral joints, Achilles tendon, gastrocnemius muscle, and pediatric lower limb bones. Finally, a more general approach to model personalization is discussed based on the idea...
Source: Journal of Applied Biomechanics - August 22, 2023 Category: Sports Medicine Authors: Justin Fernandez Vickie Shim Marco Schneider Julie Choisne Geoff Handsfield Ted Yeung Ju Zhang Peter Hunter Thor Besier Source Type: research

Modeling Human Suboptimal Control: A Review
J Appl Biomech. 2023 Aug 16:1-10. doi: 10.1123/jab.2023-0015. Online ahead of print.ABSTRACTThis review paper provides an overview of the approaches to model neuromuscular control, focusing on methods to identify nonoptimal control strategies typical of populations with neuromuscular disorders or children. Where possible, the authors tightened the description of the methods to the mechanisms behind the underlying biomechanical and physiological rationale. They start by describing the first and most simplified approach, the reductionist approach, which splits the role of the nervous and musculoskeletal systems. Static optim...
Source: Journal of Applied Biomechanics - August 16, 2023 Category: Sports Medicine Authors: Alex Bersani Giorgio Davico Marco Viceconti Source Type: research

Open Foot Stance Reduces Lead Knee Joint Loading During Golf Swing
This study included 16 male right-handed amateur golfers who performed golf swings with 2 different foot stances (straight and open) using 4 different club types (driver, 3 iron, 6 iron, and 9 iron) while standing on 2 force plates in a motion capture laboratory. A custom program calculated the kinematics and kinetics of the lead knee. Overall, the open stance reduced most translations, rotations, forces, and torques of the lead knee in all 4 club types when compared with the straight stance. The open stance reduced the rotation motion (-28%), compressive force (-5%), and rotation torque (-9%) when compared with the straig...
Source: Journal of Applied Biomechanics - August 16, 2023 Category: Sports Medicine Authors: Hannah Stokes Rafael Escamilla Joseph Bellapianta Hongsheng Wang Tyson Beach Dave Frost Naiquan Zheng Source Type: research

Modeling Human Suboptimal Control: A Review
J Appl Biomech. 2023 Aug 16:1-10. doi: 10.1123/jab.2023-0015. Online ahead of print.ABSTRACTThis review paper provides an overview of the approaches to model neuromuscular control, focusing on methods to identify nonoptimal control strategies typical of populations with neuromuscular disorders or children. Where possible, the authors tightened the description of the methods to the mechanisms behind the underlying biomechanical and physiological rationale. They start by describing the first and most simplified approach, the reductionist approach, which splits the role of the nervous and musculoskeletal systems. Static optim...
Source: Journal of Applied Biomechanics - August 16, 2023 Category: Sports Medicine Authors: Alex Bersani Giorgio Davico Marco Viceconti Source Type: research

Open Foot Stance Reduces Lead Knee Joint Loading During Golf Swing
This study included 16 male right-handed amateur golfers who performed golf swings with 2 different foot stances (straight and open) using 4 different club types (driver, 3 iron, 6 iron, and 9 iron) while standing on 2 force plates in a motion capture laboratory. A custom program calculated the kinematics and kinetics of the lead knee. Overall, the open stance reduced most translations, rotations, forces, and torques of the lead knee in all 4 club types when compared with the straight stance. The open stance reduced the rotation motion (-28%), compressive force (-5%), and rotation torque (-9%) when compared with the straig...
Source: Journal of Applied Biomechanics - August 16, 2023 Category: Sports Medicine Authors: Hannah Stokes Rafael Escamilla Joseph Bellapianta Hongsheng Wang Tyson Beach Dave Frost Naiquan Zheng Source Type: research