stepping with each front leg at the same time as the opposite back leg

[GoldfishLord]

trot
1 of a horse : to move at a speed faster than walking by stepping with each front leg at the same time as the opposite back leg

Source: https://www.britannica.com/dictionary/trot

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I wonder how native English speakers understand the bold part.
Does "at the same time as" mean "and" in that context?

 

[SoothingDave]

No, it doesn't.

The two legs (front right and rear left, and vice-versa) move together. At the same time.

 

[GoldfishLord]

Would you paraphrase the bold part?

 

[Skrej]

See for yourself. Here's a video of the four main horse gaits. The trot begins at about 2:08.

Here are handy animated versions with unnecessarily majestic music.
walk
trot
canter
gallop

 

[GoldfishLord]

I'm just analyzing that part. I know the meaning of "trot".

 

[SoothingDave]

Would you paraphrase the bold part?

"Simultaneously" (with) the back leg.

 

[Barque]

I know the meaning of "trot".

If you know the meaning of "trot", what exactly are you having a problem with?

The front leg moves along with the opposite back leg.

 

[Barque]

Right front leg moves with left rear leg.
Left front leg moves with right rear leg.