---
title: "SitScreen Anatomical Landmarks and Measurements"
url: https://www.postureanalysis.com/knowledge-base/sitscreen-anatomical-landmarks-and-measurements/
description: "SitScreen Measurements. Name of Measurement How is it Measured Cranio-Vertebral Angle (CVA) D-E-Horizontal: External Auditory Meatus (EAM)/Tragus relative to Horizontal Head-Neck Angle AKA Neck Flexion Angle – Szeto) D-E-Vertical: EAM/Tragus to vertical Head-Tilt Angle (Relative to Horizontal)…"
categories: ["SitScreen for iPad and iPhone"]
tags: ["anatomical", "anatomy", "landmarks", "SitScreen"]
publisher: "PostureCo, Inc."
source: https://www.postureanalysis.com/knowledge-base/sitscreen-anatomical-landmarks-and-measurements/
---

# SitScreen Anatomical Landmarks and Measurements

> **Summary:** SitScreen Measurements. Name of Measurement How is it Measured Cranio-Vertebral Angle (CVA) D-E-Horizontal: External Auditory Meatus (EAM)/Tragus relative to Horizontal Head-Neck Angle AKA Neck Flexion Angle – Szeto) D-E-Vertical: EAM/Tragus to vertical Head-Tilt Angle (Relative to Horizontal) C-D-Horizontal: Lateral…

![](https://www.postureanalysis.com/wp-content/uploads/2020/06/IMG_0022-2.jpg)

*SitScreen Measurements*

| **Name of Measurement** | **How is it Measured** |
|---|---|
| Cranio-Vertebral Angle (CVA) | D-E-Horizontal: External Auditory Meatus (EAM)/Tragus relative to Horizontal |
| Head-Neck Angle AKA Neck Flexion Angle – Szeto) | D-E-Vertical: EAM/Tragus to vertical |
| Head-Tilt Angle (Relative to Horizontal) | C-D-Horizontal: Lateral Canthus Eye to Horizontal |
| Gaze Angle | C-D-Center of Monitor (points A to B distance) Lateral Canthus of Eye to center of monitor |
| High Thoracic Angle | D-E-M EAM/Tragus – C7/T1 to Approximate T7 |
| Neck Posture Angle | D-F-vertical EAM/Tragus to Center Base of neck at Cervico-thoracic Junction |
| Elbow Angle | F-G-H |
| Wrist Angle | G-H-I |
| Trunk Thigh Angle | F-J-Vertical |
| Thigh angle | J-k-horizontal |