Biomechanics, Motion Capture, and Electromyography Lecture Flashcards

Vocabulary flashcards covering key concepts from the lecture on biomechanics, motion capture systems, squat mechanics, electromyography, and injury mechanisms.

Biomechanics

The study of the mechanics of a biological system, defined as the study of how forces affect the human body's structures and physical function.

Kinematics

The study of human motion, spatial positions, 3D segment positions, and joint angles throughout a movement without directly evaluating the underlying forces.

Kinetics

The study of the forces, ground interactions, loads, and joint torques that drive and produce human movement.

Counterbalance Squat

A squat modification where weight is held out in front of the body, shifting the force forward to allow the lifter to stick their hips further back, increasing torque on the hips and glute activation relative to the quads.

Electromyography (EMG)

A technology that measures the electrical activity produced by muscle contractions underneath surface skin sensors or intramuscular needle electrodes.

Prospective Study

A research study design where movement patterns or baseline measurements are taken in healthy subjects prior to tracking them over time to observe injury outcomes and predictive relationships.

Patho-kinesiological Injury

An injury classification where an acute physical trauma or pathology directly causes altered movement patterns.

Kinesio-pathologic Injury

An injury classification where subtle micro-traumas caused by inefficient movement patterns build up over time to eventually produce macro-trauma or failure.