גומיית ההתנגדות עוזרת לשיווי המשקל.

גומיית is the construct form of גומייה, which means rubber band / elastic band.

In Hebrew, when one noun is followed by another noun to make a phrase like X of Y, the first noun often changes form. So:

• גומייה = an elastic band
• גומיית התנגדות = a resistance band
  literally: band of resistance

So גומיית here means band of ... and must be followed by another noun.

Because this is a construct chain.

In Hebrew construct phrases, the first noun usually cannot take ה־. Definiteness is shown on the second noun, and that makes the whole phrase definite.

Compare:

• גומיית התנגדות = a resistance band / resistance band
• גומיית ההתנגדות = the resistance band

So even though גומיית itself has no ה־, the whole phrase is definite because התנגדות is definite.

Here התנגדות means resistance in the exercise/fitness sense, as in resistance training or a resistance band.

The word can also mean opposition in other contexts, but in this sentence it clearly means physical resistance.

Because the subject, גומיית ההתנגדות, is feminine singular.

The main noun is גומייה, and גומייה is feminine. In the present tense, Hebrew verbs behave like participles and agree with the subject in gender and number.

So:

• masculine singular: עוזר
• feminine singular: עוזרת
• masculine plural: עוזרים
• feminine plural: עוזרות

Since גומיית ההתנגדות is feminine singular, the sentence uses עוזרת.

Yes. In Modern Hebrew, the present tense is built from forms that look like participles.

So עוזרת here means:

• helps
• is helping

In a general statement like this, English usually translates it as helps.

Because לעזור normally takes ל־.

So Hebrew says:

• לעזור למישהו = to help someone
• לעזור למשהו = to help something / help with something

That is why the sentence says:

• עוזרת לשיווי המשקל

Literally this is something like helps to/for the balance, but in natural English we usually say helps with balance or helps balance.

שיווי משקל is a fixed Hebrew expression meaning balance or equilibrium.

It is also a construct phrase:

• שיווי = equilibrium / equalizing
• משקל = weight

Historically/literally, the phrase is something like equilibrium of weight, but in normal usage you should just learn שיווי משקל as the standard expression for balance.

In this sentence it appears as שיווי המשקל, where המשקל makes the whole phrase definite.

Both structure and meaning matter here.

Since שיווי משקל is a construct phrase, making the second noun definite can make the whole phrase definite:

• שיווי משקל = balance
• שיווי המשקל = the balance

After ל־, that becomes:

• לשיווי משקל
• לשיווי המשקל

In many real contexts, Hebrew may use either definite or indefinite wording depending on style and context. In your sentence, לשיווי המשקל is the form chosen, and it means for balance / for maintaining balance / with balance.

A good approximate pronunciation is:

gu-mi-YAT ha-hit-nag-DUT o-ZE-ret le-shi-VUY ha-mish-KAL

More smoothly:

gumiyát hahitnagdút ozéret leshivúy hamishkál

Main stresses:

• גומיית → gumiyÁT
• ההתנגדות → hitnagdÚT
• עוזרת → oZÉret
• שיווי → shivÚY
• המשקל → mishkÁL

Yes.

• גומיית התנגדות = a resistance band / resistance band
• גומיית ההתנגדות = the resistance band

So the version without ה־ is more general or indefinite, while the version in your sentence refers to a specific resistance band.

The structure is:

• גומיית ההתנגדות = subject
• עוזרת = verb
• לשיווי המשקל = prepositional phrase

So literally the order is:

The resistance band helps with balance.

This is a very normal Hebrew word order: subject + verb + prepositional complement.