---
title: "Speed Limits"
slug: "speed-limits"
updated: 2024-12-06T07:33:19Z
published: 2024-12-06T07:33:19Z
canonical: "docs.1080motion.com/speed-limits"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.1080motion.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Speed Limits

The *speed limit* settings control how fast the line is allowed to move.

### Resisted speed limit

The Resisted speed limit prevents the user from moving faster than the selected limit. The machine limits the speed to the set limit by temporarily increasing the amount of resistance, thus decreasing the speed. The Resisted speed limit creates an *isokinetic resistance* mode.

Restricting the resisted speed is primarily used in swim training or rehabilitation. It is not a useful function for sprinting or running and will cause a sudden jolt if the user accelerates into the speed limit. To avoid this, simply dial in the maximum resisted speed value: 14 m/s. The lowest speed limit allowed is 0,05m/s

> **WARNING**: For sprinting, do not set the resisted speed lower than the athlete can run as this will cause athlete to hit a speed barrier jolting the athlete and machine. Risk for injury and injury to both machine and user. Always set resisted speed setting at 14ms.
> 
> 
> Use loads instead to regulate how fast the athlete is allowed to run!

### Assisted speed limit

Use the assisted speed limit for assisted or over speed training

The assisted speed limit prevents the line from retracting faster in the assisted direction than the set limit, even if the user lets go of the line completely. The machine reduces the assisted speed by temporarily decreasing the amount of resistance

### Brake Function (1080 Sprint Only)

To prevent the end of the cord to slam into the Sprint at high speeds, primarily when doing assisted or over speed training, the system will start breaking the retraction before reaching the calibration point. The breaking distance is a function of speed and is greater the higher the speed.

> **IMPORTANT**: Observe great caution when doing over-speed training. If a carabineer or handle is released from the athlete when doing over speed training at high speeds, the high speed of the moving mass may be dangerous to bystanders and can damage the system. The calibration point should be set no closer than 10-15m from the Sprint unit if doing assisted over-speed training

## Related

- [Setting Zero Position](/setting-zero-position.md)
- [Resistance Settings](/resistance-settings.md)
- [Resistance Modes](/resistance-modes.md)