A avaliação física mostra a resistência física.

Avaliação física usually means physical assessment, fitness assessment, or physical evaluation, depending on context.

In Brazilian Portuguese, it is often used for an assessment of someone's body condition, fitness level, measurements, strength, endurance, and so on. In some contexts, English might translate it more naturally as fitness evaluation rather than the very literal physical evaluation.

• avaliação = evaluation, assessment
• física = physical

So the phrase is literally physical evaluation/assessment.

Both a words are the feminine singular definite article, meaning the.

• a avaliação física = the physical assessment
• a resistência física = the physical endurance/resistance

Portuguese uses definite articles more often than English does. In English, you might sometimes omit the, but in Portuguese it is often completely natural to include it.

Here, both nouns are feminine singular:

• a avaliação
• a resistência

So they both take a.

In Portuguese, adjectives often come after the noun.

So:

• avaliação física = physical assessment
• resistência física = physical endurance

This is one of the most common word-order differences from English. English usually puts adjectives before nouns, while Portuguese often puts them after.

That said, adjective position in Portuguese can sometimes change for style or meaning, but with expressions like these, the normal order is:

• noun + adjective

It is repeated because it modifies two different nouns:

• avaliação física = the assessment is physical
• resistência física = the endurance/resistance is physical

So the sentence clearly says that a physical assessment shows physical endurance.

Could you omit the second física? Sometimes, in context, yes:

• A avaliação física mostra a resistência.

But that is broader and less specific. Resistência by itself could mean resistance/endurance in a more general sense. Keeping física makes the meaning clearer and more precise.

Mostra is the third-person singular present indicative form of the verb mostrar (to show).

Conjugation:

• eu mostro = I show
• você/ele/ela mostra = you/he/she shows

In this sentence, the subject is A avaliação física, which is singular, so the verb is mostra.

So grammatically:

• subject: A avaliação física
• verb: mostra
• object: a resistência física

Literally, yes, resistência often translates as resistance. But in this sentence, a more natural English meaning is usually:

• endurance
• stamina

So resistência física often means physical endurance or physical stamina, not just the broad English word resistance.

This is a good example of a word that may have a direct translation, but the best English equivalent depends on context.

Because it has to agree with the noun it describes.

In Portuguese, adjectives agree in gender and number with the noun.

Here:

• avaliação is feminine singular, so: física
• resistência is feminine singular, so: física

Compare:

• o exame físico = the physical exam
• a avaliação física = the physical assessment

The adjective changes form:

• masculine singular: físico
• feminine singular: física
• masculine plural: físicos
• feminine plural: físicas

You usually learn the gender of a noun together with its article:

• a avaliação
• a resistência

While many feminine nouns do end in -a, that is not a guaranteed rule. Nouns ending in -ção are very commonly feminine, so:

• a avaliação
• a informação
• a situação
• a organização

So avaliação is feminine even though it does not end in -a.

They help with pronunciation.

1. avaliação

• The ç makes the c sound like s
• ão is a nasal sound common in Portuguese

So avaliação is approximately:

• a-va-lia-SOWN
  But with a nasal ending that English does not have exactly.

2. física

The accent in física shows the stress:

• FÍ-si-ca

3. resistência

The accent shows the stressed syllable:

• re-zis-TÊN-cia

So the marks are not decorative; they tell you important pronunciation information.

The normal order is:

• A avaliação física mostra a resistência física.

You could change the order for emphasis, but it would sound less neutral or more literary. For example:

• A resistência física é mostrada pela avaliação física.
  = The physical endurance is shown by the physical assessment.

That version is grammatical, but the original sentence is more direct and natural for standard usage.

A rough pronunciation guide for English speakers would be:

ah a-va-lia-SOWN FEE-zi-ka MOHS-tra ah heh-zis-TEN-sya FEE-zi-ka

A few notes:

• The r in resistência at the beginning sounds somewhat like an English h in many Brazilian accents.
• The s in the middle of resistência sounds like z because it is between vowels.
• The ão in avaliação is nasal, which has no exact English equivalent.

A more syllable-by-syllable breakdown:

• A = ah
• a-va-li-a-ção
• fí-si-ca
• mos-tra
• a
• re-sis-tên-cia
• fí-si-ca

Sometimes, depending on context, but not always.

• avaliação física usually suggests an assessment/evaluation, especially in sports, fitness, or body-performance contexts.
• exame físico is often a better match for physical exam, especially in a medical context.

So if this sentence is about fitness or body performance, physical assessment or fitness assessment is probably the best translation. If it were a medical setting, the wording might be different.