Analysis of Human Movement With Assistive Devices

Inclusion Criteria for Nondisabled Participants: * Age 18 - 90 years * Has bilateral normal range of motion * Able to perform a variety of movement activities * Able to communicate and write individual perceptions in English * Able to provide written informed consent * Participants that will use a treadmill during data collection must also be able to walk independently and safely on a treadmill Exclusion Criteria for Nondisabled Participants: * Health issues (e.g., confounding injury, musculoskeletal, or cognitive) or other issues (e.g., transportation or schedule issues) that limit effective participation and/or may not represent a nondisabled condition * Pregnancy * Not able to read and understand English Inclusion Criteria for Participants with a Disability: * Age 18 - 90 years * Has a condition or diagnosis that results in limb weakness, limb paralysis, limb loss, or movement disorders * Medically stable * Has stable balance * Able to perform a variety of movement activities * Able to communicate and write individual perceptions in English * Able to provide written informed consent * Participants that will use a treadmill during data collection must also be able to walk independently and safely on a treadmill * Able to safely complete the movements being tested and/or safely use the assistive devices being tested Exclusion Criteria for Participants with a Disability: * Health issues (e.g., confounding injury, musculoskeletal, or cognitive) or other issues (e.g., transportation or schedule issues) that limit effective participation and/or may result in mixed effects of multiple sources of disability * Pregnancy * Not able to read and understand English