> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uplift.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Vertical Pelvis Hike

> Binary indicator of excessive vertical pelvis movement, determined if the pelvis keypoint finishes the swing (at ball contact) higher than where it started (at launch event).

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Boolean
* **Units:** True/False
* **Column Name:** `vertical_pelvis_hike`
* **Aggregation:** rate
* **Precision:** 0
* **Optimal Direction:** Lower is better
* **Unknown Value:** -1
* **Measurement:** Pelvis height at ball contact vs launch
* **Fault Condition:** Pelvis higher at ball contact than at launch

## Description

Vertical pelvis hike indicates excessive upward movement of the pelvis during the swing, which can compromise balance and power transfer efficiency.

## Use Cases

* Pelvis stability analysis
* Vertical movement assessment
* Technique correction