> ## 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.

# Arm Slot Type

> Broad classification of arm slot angle.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** String
* **Units:** N/A
* **Column Name:** `arm_slot_type`
* **Aggregation:** mode
* **Precision:** 0
* **Optimal Direction:** N/A

## Description

Arm slot type classifies the arm slot angle into categories based on ranges broadly adopted from Tread Athletics, Graeme Lehman: Do Different Arm Slots = Different Mechanics?
[https://treadathletics.com/arm-slot-differences/](https://treadathletics.com/arm-slot-differences/)

The classifications are:

* overhand (0-45°)
* three-quarter (45-65°)
* sidearm (65-115°)
* submarine (115-180°)

With 0° as vertical and 90° as horizontal.

## Use Cases

* Arm slot classification
* Pitching style identification
* Pitch consistency tracking