Update so far: A Pune court has prolonged the detention of Siya Goyal and Chetan Chaudhary, suspects in the Ketan Agarwal killing, to July 3, 2026. Officials requested more time as inquiries continue, notably a forensic review of Chaudhary’s walking style. Reports indicate police intend to match his stride against CCTV images of a hooded figure near Lohagad Fort, where the crime occurred, to check if the individual matches Chaudhary.

Gait analysis studies human locomotion in detail. Walking involves ongoing coordination among muscles, skeleton and nerves. Specialists break down these motions to map an individual’s distinctive pattern.

Clinics apply the method to diagnose pain sources or track disease development. Athletes use it to refine performance. Forensic versions compare recorded walks from video with a known person’s gait, serving mainly to support other evidence such as DNA or witness statements.

Practitioners often detect irregularities in motion. Back pain may stem from foot placement, while the technique aids management of cerebral palsy, Parkinson’s disease and stroke recovery. Research shows gait shifts can precede visible signs in Parkinson’s, Alzheimer’s, Lewy body dementia and multiple sclerosis.

A gait cycle begins when one foot contacts the ground and ends at the next contact by the same foot. The stance phase covers ground contact until toe-off, absorbing impact and bearing weight. The swing phase lifts the foot forward without dragging, preparing for landing.

Analysts record multiple cycles, measuring cadence, step and stride lengths, joint angles, ankle motion and ground impact force. Observation may rely on simple visual notes or advanced tools including video, pressure mats, force plates and body-worn sensors.

Forensic gait analysis treats walking style like a biometric identifier. In this case, police hold footage of a hooded person near the scene and plan to film Chaudhary walking in similar attire at the same location for comparison. Experts examine step rhythm, foot angles, arm swing and unique traits such as limps.

Matches may be noted if both recordings show identical knee rotation or stride length. The process supplements other investigative findings.

Credit:
https://www.thehindu.com/sci-tech/science/ketan-agarwal-death-case-what-is-gait-analysis-explained/article71164613.ece
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