> ## 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:** 24.1 – 29.6 in (0.612 – 0.752 m)
* **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              | 23.6 – 27.7 in            | 20.7 | 23.6 | 25.3 | 27.7 | 29.5 |
| High School        | 23.6 – 27.7 in            | 20.7 | 23.6 | 25.3 | 27.7 | 29.5 |
| College            | 26.1 – 31.6 in            | 23.0 | 26.1 | 28.8 | 31.6 | 34.3 |
| Professional       | 26.1 – 31.6 in            | 23.0 | 26.1 | 28.8 | 31.6 | 34.3 |
| Broad (All Levels) | 24.1 – 29.6 in            | 21.6 | 24.1 | 26.9 | 29.6 | 32.6 |

## Use Cases

* Stride analysis
* Balance assessment