conditions is common to runners and cyclists and is characterized by pain and irritation over the lateral femoral condyle

The condition common to runners and cyclists, characterized by pain and irritation over the lateral femoral condyle, is known as Iliotibial Band Syndrome (ITBS) or 'Runner's Knee'.

Here are the steps to answer your question:

1. Identify the symptoms: The symptoms you mentioned - pain and irritation over the lateral femoral condyle - are common in conditions affecting the knee joint.

2. Identify the group: You mentioned that this condition is common to runners and cyclists. These are groups of people who often experience repetitive strain injuries, particularly in the lower body.

3. Match the symptoms and group to a condition: Given the symptoms and the group, the condition is likely to be Iliotibial Band Syndrome (ITBS). This condition is caused by excessive friction from the iliotibial band being overly tight and rubbing against bone, often around the knee area. This is common in sports that involve repetitive knee bending, such as running and cycling.

4. Confirm the condition: ITBS is characterized by pain and irritation over the lateral femoral condyle, which matches the symptoms you provided. Therefore, the condition you're referring to is likely ITBS.