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# 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


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