> ## 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.

# Stride Length

> Distance between the lead ankle at foot contact and the rear ankle at max foot raise event. This measures the stride length used during the swing.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** raw: m, display: in
* **Column Name:** `stride_length`
* **Aggregation:** mean
* **Precision:** 1
* **Measurement:** Distance between lead ankle (foot contact) and rear ankle (max foot raise)
* **Typical Range:** 15.5 – 32.7 in
* **Optimal Direction:** Middle — moderate values are optimal

## Description

Stride length measures the distance covered by the stride during the swing, providing insight into stride mechanics and balance.

## 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              | 12.9 – 16.7 in            | 11.7 | 12.9 | 15.1 | 16.7 | 20.7 |
| High School        | 15.3 – 20.6 in            | 13.9 | 15.3 | 17.1 | 20.6 | 29.9 |
| College            | 23.5 – 33.4 in            | 21.1 | 23.5 | 28.3 | 33.4 | 37.3 |
| Professional       | 31.5 – 38.6 in            | 27.8 | 31.5 | 35.1 | 38.6 | 40.7 |
| Broad (All Levels) | 15.5 – 32.7 in            | 13.0 | 15.5 | 21.7 | 32.7 | 37.4 |

## Use Cases

* Stride analysis
* Balance assessment