What to look for in the running form of injured athletes

Introduction

Khaldon, CEO and co-founder of Ochy, was once a high-level NCAA 400m athlete. Like many competitive runners, he suffered frequent injuries without truly understanding their cause. It wasn’t until he underwent a biomechanical analysis that he discovered the real culprit: his feet. Poor foot mechanics, repeated over thousands of strides, had been the root cause of his injuries.

This personal revelation inspired the creation of Ochy. Today, using video and artificial intelligence, Ochy enables healthcare professionals and coaches to detect gait issues before they turn into injuries, and to optimise their athletes’ performance.

You should never wait until an athlete is injured to analyse their running form. Preventive gait analysis is an essential tool to detect imbalances, correct faulty mechanics, and significantly reduce injury risk.

Runner on a lab treadmill surrounded by motion-capture cameras during a biomechanical gait analysis

Foot Alignment at Impact

The way the foot lands is one of the most critical elements in assessing running form. A foot striking too far ahead of the body’s centre of gravity (overstriding) increases impact forces, while excessive inward or outward rotation disrupts lower-limb alignment. These imbalances can lead to plantar fasciitis, shin splints, or patellofemoral pain syndrome. With Ochy, it’s possible to measure the foot’s angle and position frame by frame, allowing professionals to detect and correct these issues before they become chronic.

Illustration of an overstride heel landing far ahead of the body versus a foot landing under the centre of gravity

Knee Position During Stance Phase

Knee alignment directly affects how forces are distributed across joints and muscles. A knee collapsing inward (valgus) or bowing outward (varus) places extra stress on ligaments, tendons, and the hip. These deviations increase the risk of patellar tendinitis, ACL injuries, or chronic hip pain. Ochy’s analysis provides a real-time visualisation of these misalignments and delivers accurate data to build targeted corrective plans.

Skeletal diagram comparing normal knee alignment with varus (bowed outward) and valgus (collapsing inward) knees

Pelvic Movement

Pelvic stability is a major indicator of hip and core strength. An excessively tilted pelvis or one that drops noticeably to one side often signals muscular weakness or postural imbalance. This flaw can lead to lower back pain, hip bursitis, or iliotibial band syndrome. With Ochy, healthcare professionals can assess pelvic stability from multiple angles and track improvements over time.

Rear-view diagram of a level pelvis versus the Trendelenburg sign, with the pelvis dropping on one side

Trunk Posture

The position of the trunk plays a central role in running dynamics. Leaning too far forward shifts the centre of gravity and increases stress on the lower back, while excessive backward extension can create neck and upper back tension. These postural issues, often linked to muscle weakness or poor technique, reduce running efficiency and heighten injury risk. Ochy’s technology measures trunk inclination with precision, helping professionals recommend tailored adjustments for each runner.

Two treadmill runners with red lines marking trunk lean and leg angles, one leaning forward, one upright

Arm Movement

Arm coordination directly influences balance, symmetry, and running fluidity. Arms crossing the body’s midline or lacking sufficient swing create unwanted rotational forces, putting unnecessary strain on the spine and hips. This can lead to back pain, chronic imbalances, and reduced running economy. Ochy’s AI detects these asymmetries and suggests corrections to improve arm-leg coordination.

Close-up of a runner with bent arms swinging close to the body on a road at sunset

Conclusion

Faulty running mechanics may seem harmless in the short term, but repeated over thousands of steps, they become a leading cause of injury. Foot placement, knee alignment, pelvic stability, trunk posture, and arm coordination, all of these elements are measurable and correctable with Ochy.

Prevention is always better than cure. Don’t wait for pain to appear: install Ochy, run a full biomechanical analysis, and identify risk factors before they develop into injuries. And if your athletes are already injured, use Ochy to pinpoint the exact source of the problem and design an effective rehabilitation plan.

👉 Try Ochy for yourself!

Ochy analysis screen flagging a low heel kick, with a back knee angle of 103° against an ideal of 90°

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