> ## 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.

# Inter Elbow Distance at Ball Contact

> Distance between the lead and rear elbows at ball contact event. This measures the separation between elbows at the instant of impact.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** meters (m)
* **Column Name:** `inter_elbow_distance_at_ball_contact`
* **Aggregation:** mean
* **Precision:** 3
* **Optimal Direction:** Middle — moderate values are optimal
* **Measurement:** Distance between lead and rear elbows
* **Timing:** At ball contact event
* **Typical Range:** 0.24-0.38 meters

## Description

Inter elbow distance at ball contact measures the distance between the lead and rear elbows at the moment of ball contact, indicating the arm separation and positioning during impact.

## Use Cases

* Arm positioning
* Transfer of body's rotational power to bat