> ## 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.

# Hang Back

> Binary indicator of a 'hang back' fault — the golfer's weight stays on the trail side, with the pelvis more than 5 cm behind its Address position at Impact instead of shifting toward the target.

## Technical Details

* **Variable Type:** Movement Flag
* **Data Type:** Integer
* **Units:** N/A
* **Column Name:** `hang_back`
* **Optimal Direction:** Lower is better
* **Unknown Value:** -1
* **Measurement:** Mid-pelvis X position at P1 Address vs. P7 Impact
* **Threshold:** Pelvis X position at Impact is more than 5 cm (0.05 m) behind its Address value

## Description

Hang Back flags a golfer who fails to shift weight toward the target during the downswing, leaving the pelvis behind its Address position at Impact. This weight-transfer fault typically reduces power and can produce inconsistent, thin contact.

## Use Cases

* Weight transfer analysis
* Power and contact consistency coaching