Module 3

Realistic Hindlimb Lameness​

About this Module

In this module, hind limb lameness is more complex: movement of the pelvis is realistic, consisting of both translation and rotation. While being able to practice the first approach your learnt in Module 2 (the ‘mid-pelvis’ method), you will learn a second assessment approach (the ‘hips’ method).

This module teaches the full evaluation of hind limb lameness. In this module, movement of the pelvis is realistic, consisting of both translation AND rotation.

Hind limb lameness normally manifests not only in asymmetry in the vertical movement of the mid-pelvis: additionally, you are able to see that the hip on the lame side moves with a greater upward amplitude compared to the other hip. In this module you will learn this second assessment approach (the ‘hips’ method) while being able to practice the first approach your learnt in Module 2 (the ‘mid-pelvis’ method). In the real world, it is advisable to do both: sometimes lameness is more obvious when using the ‘mid-pelvis’ method, and sometimes when using the ‘hips’ method.

The principle for progression within this module is the same as that for Module 1 and 2.

You receive feedback on the correctness of your evaluation for each horse.

Guide: How to assess hindlimb lameness - part 2

Duration: 6 minutes.

This instruction video contains a comprehensive explanation on how to determine lameness based on mid-pelvis and hips movement using different strategies.


Duration: approximately 5 minutes.

Before starting your training, we recommend to perform this quick warm-up exercise: it lets you become familiar with the interface. There is no adaptive learning involved in this warm-up.


The Game

Duration: approximately 30 minutes.

In this game you will learn to correctly classify realistic hindlimb lameness all the way to subtle lameness. Enjoy 🙂

Rules for this Module

Game Interface

Below is the interface for Module 3. Feedback and controls are on the left, your points, performance and levels are tracked on the right.

Aim of the Game

Collect points while completing all 6 levels (and if you are keen, the bonus level 7) without losing your lives. If you lose nine lives, it is game over and you start from the beginning.

How it works

In this module, you will learn to progress through seven levels of ever increasing difficulty.

On each level, you have to assess:

• Whether the horse is lame or not

• If it is lame, which forelimb is affected

If you correctly assess 4 horses in a row, you jump up one level. If you incorrectly assess a horse, the penalties below apply. If you are unsure about an assessment, please additionally tick the ‘not sure box’ on the user interface.


You score points for each successful evaluation depending on how often you review a clip and at which level you are: the more difficult the level, the more points you receive for a correct evaluation. Within each level, you always get two more points if you watch a clip just once, one more point if you watch the clip just twice and the default number of points if you watch the clip more often than this.


Penalties apply if you pass an incorrect verdict:

• 1 x wrong: → Points wiped for level

• 2 x wrong: → Points wiped for level

→ Bumped back 1 level

→ One life lost


You start the game with 9 lives. Each life is worth 10 points at the end of the game, so you start with 90 points ‘in the bag’. If you lose a life, you lose 10 of these points. Repeating a previous level scores you 5 grace points.

Please check back on PC (or Tablet)

This game currently does not run on mobile. It is designed for PC and runs on some tablets. Please switch to another device to play.