Fotstøtten reduserer belastningen på korsryggen.

Because fotstøtten is the definite form: the footrest.

• en fotstøtte = a footrest
• fotstøtten = the footrest

In Norwegian, definiteness is usually added as a suffix to the noun rather than with a separate word like the in English.

Also, fotstøtte is a compound noun:

• fot = foot
• støtte = support

So fotstøtte literally means foot support / footrest.

Reduserer is the present tense of the verb å redusere = to reduce.

Examples:

• å redusere = to reduce
• reduserer = reduces / is reducing
• reduserte = reduced
• har redusert = has reduced

In Norwegian, verbs do not change according to the subject the way they do in English:

• jeg reduserer = I reduce
• du reduserer = you reduce
• den reduserer = it reduces
• vi reduserer = we reduce

So reduserer stays the same for all persons.

For the same reason as fotstøtten: belastningen is the definite form.

• en belastning = a strain / a load / a burden
• belastningen = the strain / the load

In this sentence, Norwegian is talking about a specific kind of strain, so the definite form sounds natural: the strain on the lower back.

Here belastning means something like strain, stress, or load on the body.

In health, ergonomics, and exercise contexts, belastning often refers to physical stress placed on muscles, joints, or body parts.

So in this sentence, reduserer belastningen på korsryggen means:

• reduces the strain on the lower back
• reduces the load on the lower back

Strain is often the most natural English choice here.

På here means on and is the natural preposition with belastning in this kind of expression.

So:

• belastning på korsryggen = strain on the lower back

Even though English sometimes uses in the back or on the back depending on context, Norwegian commonly uses på in expressions like this when talking about pressure, strain, or load affecting a body part.

Korsryggen means the lower back.

It is the definite form of korsrygg:

• en korsrygg = a lower back
• korsryggen = the lower back

This is also a compound noun:

• kors = lower part of the back / sacral-lumbar area in traditional usage
• rygg = back

So korsrygg refers specifically to the lower back.

The -en ending marks the noun as definite, just like in:

• fotstøtten = the footrest
• belastningen = the strain
• korsryggen = the lower back

Because Norwegian often marks definiteness by adding it directly to the noun.

In this sentence, all three nouns are definite:

• fotstøtten = the footrest
• belastningen = the strain
• korsryggen = the lower back

The exact form of the ending depends on the noun and how it is spelled. For example:

• en stol → stolen
• en belastning → belastningen
• en fotstøtte → fotstøtten

With fotstøtte, the final -e plus the definite ending produces fotstøtten.

No, this is a very standard Norwegian main clause:

Subject + verb + object/prepositional phrase

• Fotstøtten = subject
• reduserer = verb
• belastningen på korsryggen = object phrase

So the structure is very similar to English:

The footrest reduces the strain on the lower back.

This is a good example of ordinary declarative word order in Norwegian.

Yes, you could, but it would sound less concise and often less natural in this context.

• korsryggen = the lower back
• den nedre delen av ryggen = the lower part of the back

In medical, ergonomic, and everyday contexts, korsryggen is a very common and natural word for lower back.

So på korsryggen is the best choice here.

A careful approximate pronunciation is:

FOOT-stut-ten reh-doo-SEH-rer beh-LAHST-ning-en paw KORSS-ryg-gen

A few helpful points:

• ø in fotstøtten is a rounded vowel that does not exist exactly in English.
• tt in fotstøtten is pronounced as a clear long t sound.
• ryggen has a Norwegian y, which is also different from English vowels.
• The r sound varies by dialect, so pronunciation can differ somewhat depending on the speaker.

If you want to sound natural, focus especially on learning the vowels in:

• støtte
• rygg

Yes. Even though the sentence uses the definite form fotstøtten, Norwegian often uses the definite singular to talk about something in a general, functional, or context-specific way.

So depending on context, Fotstøtten reduserer belastningen på korsryggen can mean:

• The footrest reduces the strain on the lower back
• or, in context, something like Using the footrest reduces strain on the lower back

This is common in instructions, product descriptions, ergonomic advice, and explanations of how something works.