3 dimensional (3D) biomechanical gait analysis techniques assist exercise physiologists in their diagnosis, planning, and decision making, for patients and athletes affected by injury or movement impairment. 3D biomechanics is routinely integrated within clinical, sporting, and industry applications. Furthermore, individuals without injuries or limitations also routinely undertake 3D gait analysis to improve form & function in order to reduce injury risk & improve movement performance.
How 3D biomechanics works?
3D motion capture system utilises 10 infra-red cameras surrounding the patient or athlete, with reflective markers attached to key body segments, thus capturing high resolution data from all angles. 3D motion analysis is considered the gold standard in measuring human movement. The precision of these systems is sub millimetre, with a maximum 0.5 mm error. 3D camera system allows assessment of multiplane motion, with high frequency cameras offering greater precision for tracking motion than 2D camera systems. The short videos below highlight a summary of sequences, outcomes and recommendations during 3D running and walking evaluations.
3D running gait analysis
3D running gait sequence: (1) run (2) digitised animation (3) quantified graphics (4) key observations (5) key recommendations (1min video)
Reflective markers to identify anatomical segments
3D walking gait analysis
Walking dysfunction: (1) Identify the problem, (2) understand the cause, and (3) develop an effective action plan to improve movement patterns and reduce falls & injury risk (2min video).
Infra-red motion cameras to capture movement in 3D
3D running gait analysis to correctly diagnose the cause of injury, and subsequent effectiveness of treatment.
3D walking gait analysis to correctly diagnose the cause of gait dysfunction and injury in those affected by disabilities. Solutions are then recommended.
Biofeedback gait retraining - real time feedback that includes a visual presentation of key faulty mechanical features; to promote learning of new gait patterns
Diagnosis and treatment of patient postural control and movement patterns.
Sports performance - evaluating inefficient movement patterns.
Workplace - evaluating postural and movement patterns to reduce incidence of work related injuries. Unsafe manual handling, for example, may cause a variety of injuries, and risk assessing can determine which manual handling tasks are hazardous.