> ## 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.

# Connection at Impact

> Horizontal plane angle of the bat relative to the batter's torso at the instant of ball contact. This measures the connection between the bat and body at impact.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** °
* **Column Name:** TBD
* **Aggregation:** mean
* **Precision:** 0
* **Optimal Direction:** Middle — moderate values are optimal
* **Measurement:** Horizontal angle between bat and torso
* **Timing:** At ball contact

## Description

Connection at impact measures the horizontal plane angle between the bat and the batter's torso at the moment of ball contact, indicating proper connection and timing.

## Use Cases

* Impact analysis
* Connection assessment
* Timing evaluation
* Technique optimization