> ## 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.

# Pelvis Angle to Plate Foot Contact

> Pelvis rotation angle relative to home plate at foot contact.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** °
* **Column Name:** `pelvis_angle_to_plate_foot_contact`
* **Aggregation:** mean
* **Precision:** 0
* **Measurement:** Pelvis rotation (twist or transverse) angle
* **Reference:** 0° = facing home plate
* **Timing:** At foot contact event
* **Typical Range:** 61 – 86 °
* **Optimal Direction:** Middle — moderate values are optimal

## Description

Pelvis angle to plate foot contact measures the pelvis rotation angle relative to home plate at the instant of lead foot contact, where facing home plate is 0 degrees.

## Normative Ranges

Percentile distributions by competition level from the 2026 Q1 dataset; the optimal range spans the 25th–75th percentiles.

| Population         | Optimal Range (25th–75th) | 10th | 25th | 50th | 75th | 90th |
| ------------------ | ------------------------- | :--: | :--: | :--: | :--: | :--: |
| Youth              | 73 – 95 °                 |  62  |  73  |  84  |  95  |  105 |
| High School        | 64 – 86 °                 |  55  |  64  |  71  |  86  |  100 |
| College            | 54 – 76 °                 |  48  |  54  |  65  |  76  |  84  |
| Professional       | 46 – 75 °                 |  37  |  46  |  62  |  75  |  82  |
| Broad (All Levels) | 61 – 86 °                 |  49  |  61  |  72  |  86  |  97  |

## Use Cases

* Pelvis position assessment
* Timing evaluation