لو كتفك او ضهرك وجعك بعد التمرين، لازم ترتاح شوية وما تعملش رياضة كتير.

لو means if. It introduces a condition:

لو كتفك او ضهرك وجعك = if your shoulder or your back hurts

In Egyptian Arabic, لو is very common for everyday if-sentences, not just very hypothetical ones.

In careful spelling, this word is أو. In informal writing, people often drop the hamza and write او.

So:

• أو = standard spelling
• او = very common casual spelling

They mean the same thing: or.

The suffix -ك on a noun means your.

• كتف = shoulder

• كتفك = your shoulder

• ضهر = back
• ضهرك = your back

So this is a very common Egyptian Arabic pattern:

noun + ك = your + noun

Here وجعك is a verb form, not a noun.

It comes from وجع = hurt, and the -ك here means you as the object.

So:

• ضهرك وجعك literally = your back hurt you
• natural English = your back hurts

This body-part structure is very common in Arabic. The painful body part acts like the subject.

Great question. In Egyptian Arabic, بيوجعك is also very common for it hurts you / it is hurting you.

But after لو, speakers often use a past/perfect-looking form like وجعك to express a condition:

• لو ضهرك وجعك... = if your back hurts...

So even though وجعك looks past-like, here it does not necessarily mean a past event in English. After لو, this is a natural Egyptian pattern.

Because the sentence says shoulder or back, not shoulder and back.

With أو / او meaning or, each option is treated separately:

• كتفك = one singular option
• ضهرك = another singular option

So وجعك stays singular: if your shoulder or your back hurts

لازم means must, have to, or need to.

So:

• لازم ترتاح = you need to rest / you must rest

After لازم, Egyptian Arabic usually uses the verb without بـ:

• لازم ترتاح = correct
• لازم بترتاح = not what you want here

Also, ترتاح comes from ارتاح, which means to rest, to relax, or to get relief.

شوية means a little, a bit, or sometimes for a little while.

Here:

• ترتاح شوية = rest a bit

It softens the statement and makes it sound natural and conversational.

Egyptian Arabic often negates verbs with ما ... ش.

Base verb:

• تعمل = you do

Negative:

• ما تعملش = you don’t do / don’t do

So the sentence is using the common Egyptian negative pattern:

• ما before the verb
• ش after the verb

That is one of the most important everyday grammar patterns in Egyptian Arabic.

They are related, but not identical.

• التمرين = the workout, the exercise session, the training
• رياضة = exercise, sport, physical activity more generally

So:

• بعد التمرين = after the workout
• ما تعملش رياضة كتير = don’t do too much exercise

Here كتير means a lot of / much, so it is working more like a quantity word than a regular adjective.

So:

• رياضة كتير = a lot of exercise

In Egyptian Arabic, كتير is very commonly used this way without changing form. A learner should get used to seeing noun + كتير for a lot of noun.

As written, the verbs are masculine singular, so it is directed to one male or used as a generic singular.

You can see that in:

• ترتاح
• تعملش

If you were speaking to one female, you would usually say:

لو كتفك او ضهرك وجعك بعد التمرين، لازم ترتاحي شوية وما تعمليش رياضة كتير.

The ك spelling can stay the same in writing, but the pronunciation and the verb forms change.

A rough pronunciation is:

law kitfak aw dahrak waga‘ak ba‘d et-tamreen, lazem tirtaah shwayya w ma te‘malsh reyada kteer

A few useful pronunciation notes:

• ج in Egyptian Arabic is usually pronounced like g in go
  • so وجعك sounds like waga‘ak, not waja‘ak
• شوية is roughly shwayya
• ما تعملش is roughly ma te‘malsh

This is only an approximate guide, but it is close enough to help you say the sentence naturally.