Step Sequences
Step Sequences are written like this:

  
SlSt    Straight Line Step Sequence
  
SeSt  Serpentine Step Sequence
  
CiSt   Circular Step Sequence

with a number from 0 to 4 following that indicates its Level.  The complete Scale of Values for Step Sequences with Grades of Execuation for each Level can be found in
ISU Communication 1494.

The following definitions, clarifications and more can be found in the
ISU Technical Panel Handbook- Singles Skating, on the ISU website. It is difficult to find. Click on Singles & Pairs/Ice Dance- scroll down and click on ISU Judging System, click on Single and Pair Skating, click on Technical Panel-Single Skating

Step Sequence Definition
In order to be identified as a step sequence it must cover at least half of the ice surface.

Types of Step Sequences
* Straight Line: Short barrier to short barrier
* Serpentine- Two or three bold curves from short barrier to short barrier
* Circular: A circle using the width of the ice.

Step Sequence Levels
Please consult
ISU Communication 1557 for complete details

2 of the following Features for Level 2, 3 for Level 3, 4 for Level 4

1) Simple variety (Level 2), variety (Level 3), complexity (Level 4) of turns and steps throughout (compulsory)
2) Rotations (turns, steps) in either direction (L&R) with full body rotation covering at least 1/3 of the pattern
     in total for each rotational direction
3) Moderate (full for Level 4) use of upper body
4) Quick changes of rotational direction executed with turns and steps

Turns: Three turns, Twizzles, Brackets , Loops, Counters, Rockers.
Steps: Toe steps, Chasses, Mohawks, Choctaws, Curves with change of edge , Cross rolls, Running steps

Simple variety (Level 2):
Must include at least 6 turns and 4 steps, none counted more than twice.

Variety (Level 3):
Must include at least 8 turns and 4 steps, none counted more than twice.

Complexity (Level 4):
Must include at least 5 different types of turns and 3 different types of steps all executed at least once in both directions.

Rotation
This feature means that a skater rotates continuously in one direction for at least 1/3 of the sequence and then continuously for at least 1/3 of the sequence in the opposite direction or over the length of the step sequence the skater is performing turns for at least 1/3 of the sequence in total (not continuous) in one rotational direction and at least 1/3 of the sequence in total (not continuous) in the opposite direction.

“Full body rotation” means one complete rotation. The skater should not just turn half a rev. back and forth.

Use of the upper body

Moderate Upper Body Movement: The upper body consists of arms, head and torso. “Modest” means the visible use of two of these three parts of the upper body together while doing steps/turns/free skating movements (3 or more times distributed through the sequence).

Full Upper Body Movement: “Full” means the visible use of all three parts of the upper body together while doing steps/turns/free skating movements (3 or more times distributed through the sequence).

Quick Changes of Rotational Direction executed with turns and steps
There must be quick changes of rotational direction (left, right). These changes must be done with listed turns and steps. Such changes must be executed at least 3 times for a Level feature


Please consult the ISU Technical Panel Handbook- Singles Skating for clarification of guidelines for obtaining Levels.