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.
The most common colors for flags are black, blue, green, red, white, and yellow. Just make sure all the colors have meaningful symbolism in them. For example if your location is near water, you could have blue in your flag to symbolize the water.