Figure 4: Testing for gluteus maximus weakness. Clinical testing of the GM can be done by having the patient perform a one-leg squat or hop or by watching the patient descend stairs. The knee should track down straight in alignment with the tibia and femur (left image).
Surnames relating to color are relatively common in Spanish, and in Catalan too. Examples: Blanco in Spanish and Blanc in Catalan, meaning White in English, Rojo in Spanish and Roig or Vermell in Catalan, meaning Red, Negro in Spanish and Negre in Catalan, meaning Black.
Last name: Black. This very old and famous surname, equally popular in Scotland and England, has at least two possible origins, the first being a nickname given by the invading Angles and Saxons to the native Celts and Britons who were darker-haired and darker-skinned than themselves.