1. Energy can be made when we walk or run wearing these shoes.

2. Energy can be made when we walk or run while we wear these shoes.

3. Energy can be made when we walk or run while we are wearing these shoes.

(Which is the same as #1? #2 or #3? Or Are the three sentences all the same?)

I don't understand what you mean by "Energy can be made..." Please clarify.

Hello...How are you doing?.... It's about future Enery saving shoes. When we walk wearing Energy shoes, we can make the walking energy into electricity. With the electricity we can listen to MP3 files....The sentences are related to the question which I uploaded before. Thank you.

Ahh, I see. =)

These sentences would be better if they were phrased in active voice instead of passive.

We can make energy when we walk or run while wearing these shoes.

The three sentences are all essentially expressing the same idea, but they differ slightly in terms of syntax and emphasis.

Sentence #1: "Energy can be made when we walk or run wearing these shoes."
In this sentence, the phrase "wearing these shoes" is a participial phrase that modifies "we." The emphasis is on the action of walking or running while wearing the shoes.

Sentence #2: "Energy can be made when we walk or run while we wear these shoes."
Here, the phrase "while we wear these shoes" is an adverbial clause that modifies the verb phrase "walk or run." The emphasis is on the simultaneous occurrence of walking or running and wearing the shoes.

Sentence #3: "Energy can be made when we walk or run while we are wearing these shoes."
This sentence is similar to sentence #2, but it adds the auxiliary verb "are" before the present participle "wearing." This addition implies a longer duration or ongoing action. The emphasis is on the continuous nature of wearing the shoes while walking or running.

So, although the meaning of the three sentences is the same, the emphasis and syntax vary slightly.