In orthotic fitting, if there is excessive anterior creasing, it is likely due to:

Excessive anterior creasing in an orthotic fitting typically indicates that the shoe may not be providing sufficient length for the foot. When a shoe is too short, it creates a restriction in the area's normal movement and flexibility, resulting in creases forming inappropriately across the forefoot. This creasing occurs as the foot pushes against the front of the shoe during movement, leading to fabric or material worsening in that area.

When considering other factors like heel height, foot position, or excessive movement, they do not directly relate to the length of the shoe. A heel that is too low or an incorrect foot position can contribute to discomfort but normally wouldn’t cause specific anterior creasing. Likewise, excessive foot movement might cause different types of tension or wear patterns, but wouldn't specifically lead to that particular crease formation characteristic of inadequate shoe length. Thus, the condition of excessive anterior creasing connects most directly to the length of the shoe itself.