Biomechanical Analysis of Gait

Recurrent Neural Networks for Windlass Mechanism Subphase Recognition and Anthropometric Angles Monitoring

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07140159

Enrollment

Registered

2025-08-24

Start date

2025-02-01

Completion date

2025-08-01

Last updated

2025-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Biomechanical Assessment of the Foot During Gait

Brief summary

This study measures the medial longitudinal arch angle and the metatarsophalangeal angle during the gait cycle in 35 healthy participants using speed cameras and reflective markers placed on anthropometric points.

Detailed description

The medial longitudinal arch angle comprises the calcaneus, navicular tuberosity, and the head of the 1st metatarsal, while the metatarsophalangeal angle comprises the head of the 1st metatarsal and the proximal interphalangeal joint of the toe. These measurements provide valuable information on the stress of the plantar fascia.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 43 Years

Healthy volunteers

Yes

Inclusion criteria

* Healthy participants * Aged between 18 and 43 years * Foot sizes ranging from US 5 to 12 * Body weights between 53 to 125 kg * Heights from 1.49 to 1.90 m * BMI ranging from 21.8 to 39.9 kg/m².

Exclusion criteria

* Pes planus (flatfoot) * Pes cavus (high-arched foot) * Valgus rearfoot * Varus rearfoot * Foot deformities

Design outcomes

Primary

Measure	Time frame	Description
Metatarsophalangeal Joint Angle	Baseline	This angle comprises the supplementary angle formed by the first metatarsal head, posterior calcaneus, and proximal interphalangeal. The angle is measured using a marker-based motion capture system with blue markers placed on these points and recorded with cameras operating at 60 frames per second. A centroid-based landmark detection algorithm determines the centroid coordinates and applies trigonometric functions to each frame to calculate the angle in degrees with a precision of two decimal places.
Medial Longitudinal Arch Angle	Baseline	This angle is defined by the anthropometric landmarks of the calcaneus, the navicular tuberosity, and the head of the first metatarsal. The angle is measured using a marker-based motion capture system with blue markers placed on these points and recorded with cameras operating at 60 frames per second. A centroid-based landmark detection algorithm determines the centroid coordinates and applies trigonometric functions to each frame to calculate the angle in degrees with a precision of two decimal places.

Countries

Mexico

Outcome results