A Multi-Systems Approach to Human Movement after ACL Reconstruction: The Integumentary System

A Multi-Systems Approach to Human Movement after ACL Reconstruction: The Musculoskeletal System

International Journal of Sports Physical Therapy ◽

10.26603/001c.29456 ◽

2021 ◽

Author(s):

Daniel Larson ◽

Vien Vu ◽

Brandon M Ness ◽

Elizabeth Wellsandt ◽

Scot Morrison

Keyword(s):

Acl Reconstruction ◽

Musculoskeletal System ◽

Systems Approach ◽

Human Movement

Download Full-text

A Multi-Systems Approach to Human Movement after ACL Reconstruction: The Nervous System

International Journal of Sports Physical Therapy ◽

10.26603/001c.30020 ◽

2022 ◽

Author(s):

Meredith Chaput ◽

Brandon M Ness ◽

Kathryn Lucas ◽

Kory J Zimney

Keyword(s):

Nervous System ◽

Acl Reconstruction ◽

Systems Approach ◽

Human Movement

Download Full-text

Quantifying Coordination and Variability in the Lower Extremities after Anterior Cruciate Ligament Reconstruction

Sensors ◽

10.3390/s21020652 ◽

2021 ◽

Vol 21 (2) ◽

pp. 652

Author(s):

Sangheon Park ◽

Sukhoon Yoon

Keyword(s):

Anterior Cruciate Ligament ◽

Lower Extremity ◽

Acl Reconstruction ◽

Sagittal Plane ◽

Cruciate Ligament ◽

Return To Sport ◽

Human Movement ◽

Optimal Timing ◽

Coordination Pattern ◽

Anterior Cruciate

Patients experience various biomechanical changes following reconstruction for anterior cruciate ligament (ACL) injury. However, previous studies have focused on lower extremity joints as a single joint rather than simultaneous lower extremity movements. Therefore, this study aimed to determine the movement changes in the lower limb coordination patterns according to movement type following ACL reconstruction. Twenty-one post ACL reconstruction patients (AG) and an equal number of healthy adults (CG) participated in this study. They were asked to perform walking, running, and cutting maneuvers. The continuous relative phase and variability were calculated to examine the coordination pattern. During running and cutting at 30 and 60°, the AG demonstrated a lower in-phase hip–knee coordination pattern in the sagittal plane. The AG demonstrated low hip–knee variability in the sagittal plane during cutting at 60°. The low in-phase coordination pattern can burden the knee by generating unnatural movements following muscle contraction in the opposite direction. Based on the results, it would be useful to identify the problem and provide the fundamental evidence for the optimal timing of return-to-sport after ACL reconstruction (ACLR) rehabilitation, if the coordination variable is measured with various sensors promptly in the sports field to evaluate the coordination of human movement.

Download Full-text

A Dynamic Systems Approach to Personality

European Psychologist ◽

10.1027//1016-9040.6.3.172 ◽

2001 ◽

Vol 6 (3) ◽

pp. 172-176 ◽

Cited By ~ 14

Author(s):

Lawrence A. Pervin

Keyword(s):

Dynamic Systems ◽

Systems Approach ◽

Biological Processes ◽

Recent Advances ◽

Dynamic View ◽

The Future ◽

History Of

David Magnusson has been the most articulate spokesperson for a holistic, systems approach to personality. This paper considers three concepts relevant to a dynamic systems approach to personality: dynamics, systems, and levels. Some of the history of a dynamic view is traced, leading to an emphasis on the need for stressing the interplay among goals. Concepts such as multidetermination, equipotentiality, and equifinality are shown to be important aspects of a systems approach. Finally, attention is drawn to the question of levels of description, analysis, and explanation in a theory of personality. The importance of the issue is emphasized in relation to recent advances in our understanding of biological processes. Integrating such advances into a theory of personality while avoiding the danger of reductionism is a challenge for the future.

Download Full-text