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Thursday, 28 November 2013

To Everything Turn, Turn, Turn: Turns in Ice Dance

In ice dance you will see various turns, some featured as major steps of the pattern dances and step sequences, and others used to connect these steps and other elements in the program.

The level of a step sequence depends on the number and variety of difficult turns executed cleanly. The turns required for a step sequence to be assessed a level 4 are the following: double twizzle, bracket, rocker, counter, choctaw, and outside mohawk. 

Anatomy of a Turn

Each turn consists of 3 parts:

1) an entry edge curve

2) a blade turn (one-foot turn) or change of foot (two-foot turn), which may or may not include a change of edge and

3) an exit edge curve

Executing a turn requires the skater to shift their weight towards the front or the back of of the blade. The blade has a rocker, also known as a radius, which is a measure of its curvature. Greater curvature means less of the blade is in contact with the ice. This curve feature gives a skater greater mobility, allowing them to better maneuver around the ice. Some people also refer to the apex of the blade’s curve as the rocker.

In ice dance, you want to see entry and exit curves that are smooth and continuous as well as long with large amplitude (ie. big curves). You also want to see entry and exit edges of roughly equal depth. The turns must not be scraped or jumped. Another important feature of a turn is the control of the hips, upper body, and free leg. 

So how do you identify specific turns? The entry edge will be identified as forward or back and inside or outside. The skating foot (right or left) will also be indicated.

forward: the skating direction is forward

back: the skating direction is backward

inside: the edge being used is the one closer to the inside of the boot. Another way to think about this: the inside edges are the ones that face each other.

outside: the edge being used is the one closer to the outside of the boot. Another way to think about this: the outside edges are the ones that face each outward.


The word swing is used to indicate a swinging action of the free foot past the skating foot.

When we talk about a change of direction, we are referring to a change from forward to backward or backward to forward (and NOT clockwise to counter-clockwise or vice versa). We will also discuss turns with respect to lobe. We are referring to circular lobes. Think of two circles joined at one end on the ice. Continuing along the same lobe is like continuing along the outside of the same circle. Changing lobes is like moving along the opposite side of the next circle.


To illustrate each turn we have provided a theoretical example and a slow-motion gif example of a turn from one of the short dances this season.

We’ll look first at one-foot turns. These turns are performed entirely on one foot (ie. you will NOT see a change of foot).

twizzle: This is a continuous travelling turn. That is, it travels across the ice and the rotational action is continuous.

gif example: Here is Bobrova & Soloviev each performing a double twizzle in their Not Touching Midline Step Sequence 


three turn: This turn involves a change of edge (outside edge to inside edge or inside edge to outside edge) and change of direction (from forward to backward or backward to forward). It gets its name from the ‘3’ tracing it creates on the ice: picture an arc with a cusp (little pointy thing) in the middle that points inward. The turn is executed in the same direction as the overall curve of the turn (if the arc is skated in a clockwise direction, the blade also turns clockwise).




theoretical example: The skater enters on a right forward outside edge curving in a clockwise direction. The skater turns their blade clockwise and exits on a right back inside edge, maintaining a clockwise direction of curve. The skater has performed a right forward outside three turn.

gif example: Here is Maia Shibutani (of Shibutani & Shibutani) performing a right forward outside three turn as a transition in their short dance. Note that she is curving in a clockwise direction on a right forward outside edge, turns the blade clockwise, and continues to curve in a clockwise direction on a right back inside edge.




bracket: This turn also involves a change of edge (outside edge to inside edge or inside edge to outside edge) and a change of direction (from forward to backward or backward to forward). It gets its name from the bracket tracing it creates on the ice: picture an arc with a cusp in the middle that points outward. The turn employs counter-rotation. That is, the blade turn is executed in the opposite direction of the overall curve (if the arc is skated in a clockwise direction, the blade turns counter-clockwise).




theoretical example: The skater enters on a right forward outside edge curving in a clockwise direction. The skater turns their blade counter-clockwise and exits on a right back inside edge maintaining a clockwise direction of curve. The skater has performed a right forward outside bracket.

gif example: Here is Davis & White each performing a right forward inside bracket in their Not Touching Midline Step Sequence. Note that each skater is curving in a counter-clockwise direction on a right forward inside edge, turns the blade clockwise, and then continues curving in a counter-clockwise direction on a right back outside edge.



rockers and counters:

Each of these turns involves a change of lobe (ie. each turn starts out on one lobe and changes to a different one after the turn). Put another way, the curve of the entry edge is opposite to the curve of the exit edge. The edge is the same before and after the turns (ie. a rocker or counter with an outside entry edge will have an outside exit edge). The difference between these two turns is the direction of the turn in relation to the directions of the entry and exit edge curves. Their tracings have an ‘S’ shape with a cusp in the middle.

rocker: The blade turn is performed in the same direction as that of the curve of the entry edge and thus the cusp created by the turn points into the first lobe/curve.




theoretical example: The skater enters on a right forward outside edge curving in a clockwise direction. The skater turns their blade clockwise and exits on a right back outside edge, now curving in a counter-clockwise direction. The skater has performed a right forward outside rocker.

gif example: Here is Cappellini & Lanotte each performing a right forward inside rocker in their Not Touching Circular Step Sequence. Note that each skater is curving in a counter-clockwise direction on a right forward inside edge, turns the blade counter-clockwise, and is then curving in a clockwise direction on a right back inside edge.





counter: The blade turn is performed in the same direction as the exit curve and thus the cusp created by the turn points into the second lobe/curve.




theoretical example: The skater enters on a right forward outside edge curving in a clockwise direction. The skater turns their blade counter-clockwise and exits on a right back outside edge, now curving in a counter-clockwise direction. The skater has performed a right forward outside counter.

gif example: Here is Ilinykh & Katsalapov each performing a right back inside counter in their Not Touching Midline Step Sequence. Note that each skater is curving in a clockwise direction on a right back inside edge, turns the blade counter-clockwise, and is then curving in a counter-clockwise direction on a right forward inside edge.





We’ll now look at two-foot turns.

These turns can be either open or closed. These terms refer to the placement of the free foot during the change of foot. In an open choctaw or mohawk, the free foot is placed toward the front or near the middle of the instep of the skating foot. In a closed choctaw or mohawk, the free foot is placed behind the heel of the skating foot.

choctaw: This turn not only involves a change of foot but also a change of edge (outside edge to inside edge or inside edge to outside edge) AND a change of direction (from forward to backward or backward to forward). The pattern created on the ice is very similar to that of a rocker or counter.






theoretical example: The skater enters on a left forward inside edge curving in a clockwise direction. The skater then brings the right foot towards the front of the left foot (skating foot) and places the blade down, exiting on a right back outside edge and now curving in a counter-clockwise direction. The skater has performed a left forward inside open choctaw.

gif example: Here is Virtue & Moir each performing an open choctaw in their Not Touching Midline Step Sequence. They have chosen to do a converging pattern with one partner using the left foot as the initial skating foot and the other partner using the right foot as the initial skating foot, with each curving in opposite directions. Note that the female partner begins by curving in a clockwise direction on a left forward inside edge and brings the free foot forward, placing it in front of the skating foot (such that after the change of foot the new free foot is behind the new skating foot) and exiting on a right back outside edge now curving in a counter-clockwise direction. Meanwhile, the male partner begins by curving in a counter-clockwise direction on a right forward inside edge and brings the free foot forward, placing it in front of the skating foot and exiting on a left back outside edge now curving in a clockwise direction.





mohawk: This turn maintains the edge with the change of foot and involves a change of direction (if it is entered into on a forward outside edge it will be exited on a back inside edge). The pattern created on the ice is very similar to that of a three turn or bracket.




theoretical example: The skater enters on a right forward outside edge curving in a clockwise direction. The skater then brings the left foot behind the right foot (skating foot) and places the blade down, exiting on a left back outside edge and but still curving in a clockwise direction. The skater has performed a right forward outside closed mohawk.

gif example: Here is Pechalat & Bourzat each performing a right forward outside closed mohawk in their Not Touching Midline Step Sequence. Note that each partner begins by curving in a clockwise direction on a right forward outside edge and brings the free foot forward, placing it behind the skating foot (such that after the change of foot the new free leg is in front of the skating foot) and exiting on a left back outside edge and still curving in a clockwise direction.




Friday, 15 November 2013

How to Read (and Understand) a Protocol

The protocol is available after each segment of the competition and will tell you how each judge scored each element and aspect of the program. Each element will appear in the left column with the level the technical panel has assigned to it. The Base Value that has been decided upon in the Handbook forTechnical Panels appears under “Base” followed by the GOE awarded by each judge. For the pattern dance element, the key points are indicated with “Y” (for a key point achieved) and “N” (for a key point missed) and “T” (for a key point achieved but with one or more steps/edges not being held for the required number of beats).

So what do all those strange combinations of letters mean? 

NtMiSt=Not Touching Midline Step Sequence
NtDiSt=Not Touching Diagonal Step Sequence
NtCiSt=Not Touching Circular Step Sequence
MiSt=Midline Step Sequence
DiSt= Diagonal Step Sequence
CiSt=Circular Step Sequence
SeSt= Serpentine Step Sequence

StaLi=Stationary Lift
SlLi=Straight Line Lift
CuLi=Curve Lift
SeLi=Serpentine Lift
RoLi=Rotational Lift
RRoLi=Reverse Rotational Lift
Combination Lifts will include both lifts with a ‘+’ in between
ChLi=Choreographic Lift          Note: This lift is always assessed at level 1

Sp=Spin
CoSp=Combination Spin

STw=Synchronized Twizzles

1FS=Finnstep Section 1
2FS= Finnstep Section 2

How to Calculate TES

Here is an example from Skate Canada International 2013. In the first segment of the Finnstep, this team received credit for the first and third key points. A completed pattern with two key points translates to a level 3 for this element. All three key points were achieved on the second segment of the pattern, translating to a level 4 for this element.

So how do we get from a Base Value of 29.00 points to a total of 35.34 points? First, remove the highest and lowest score for each element (we have highlighted the highest in green and the lowest in yellow).

Element
Base
J1
J2
J3
J4
J5
J6
J7
J8
GOE
TOTAL
NtMiSt4
8.00
3
3
3
3
3
3
2
3
3.00
11.00
1FS3+YNY
6.00
2
2
2
2
3
2
2
2
1.00
7.00
2FS4+YYY
7.00
2
2
2
2
2
2
2
3
1.00
8.00
STw2
4.00
0
-1
1
1
1
0
2
-1
.17
4.17
RoLi4
4.00
2
2
2
3
2
2
3
3
1.17
5.17
TOTAL
29.00
6.34
35.34

Next take each judge’s GOE score and match it up to the corresponding value from the Scale of Values. Average these numbers and round to 2 decimals. Then add this average GOE to the Base Value, and you have the total value for that element.

Example #1: Let's look at the synchronized twizzles (STw) which was assessed a level 2. The Base Value is therefore 4.0 and the GOEs range from -1 to +2. The corresponding values from the SoV are listed in the right column.

J#
GOE
SoV
1
0
0
2
-1
-0.5
3
1
0.5
4
1
0.5
5
1
0.5
6
0
0

AVE
0.17
Example #2:  Let's look at the rotational lift (RoLi4) which was assessed a level 4. The Base Value is therefore 4.0 and the GOEs range from +2 to +3. The corresponding values from the SoV are listed in the right column.

J#
GOE
SoV
1
2
1
2
2
1
3
2
1
4
3
1.5
6
2
1
7
3
1.5

AVE
1.17

Adding this average GOE to the Base Value                    Adding this average GOE to the Base Value
we get: 4.00+0.17=4.17                                                 we get: 4.00+1.17=5.17                          
Thus, the element is worth 4.17 points.                           Thus, the element is worth 5.17 points.


                                       How to Calculate PCS

First remove the highest and lowest score for each category (we have highlighted the low in green and the high in yellow) and then average the scores for each category. This column of numbers is what you will always see on the protocol sheet but they are not the actual numbers that are used in calculating the PCS. For this, you need the factored scores.
To get those, you would next multiply the average for each category by its factor to get the factored score. The total PCS is the sum of all factored scores.

Category
Factor
J1
J2
J3
J4
J5
J6
J7
J8
Average
 of Scores
Factored
Scores
SS
0.8
9.50
9.50
9.50
9.25
9.50
9.00
9.25
8.75
9.33
7.46
TR
0.7
9.25
9.50
9.50
9.50
9.50
9.25
9.50
9.50
9.46
6.62
PE
0.7
9.50
9.25
9.50
9.75
9.25
9.00
9.25
9.75
9.42
6.59
CH
0.8
9.50
9.50
9.75
9.50
9.75
9.25
9.50
9.25
9.50
7.60
IN
1.0
9.50
9.50
9.75
9.75
9.50
9.00
9.50
9.50
9.54
9.54
TOTAL
4.0
47.25
37.82

For example, for the scores for SS you would toss out the scores from J3 and J8. Then average the rest of the scores, which will give you 9.33 (which IS displayed on the protocol sheet). Multiply that by a factor of 0.80 for a score 7.46 which is used in calculating the final PCS but is NOT displayed on the protocol.


Any additional deductions will be indicated below these sections on the protocol.