The phrase "poor physical condition" is correct and usable in written English.
For example, "By the time he retired, the runner was in a very poor physical condition."
In addition, inactive patients will likely perceive their own poor physical condition or excess adiposity to act as a barrier to becoming physically active.
They found him stressed and in poor physical condition.
Being from poverty-stricken rural communities, many would have been in poor physical condition.
He appeared to be depressed and was in poor physical condition.
Ranger Luke McLaren told ABC local radio on Monday morning that the crocodiles were in poor physical condition.
In general, it is not usually Library policy to retain duplicate copies of titles or items in poor physical condition.
In the statement, Mr. Demjanjuk says that he is in a poor physical condition and that being sent to Germany would be inappropriate and degrading treatment.
Mr. Mattingly's statement also said the building was "in poor physical condition" and would "require an extensive physical upgrade at a very high cost to the city".
Here is Velázquez standing back to look at his world - yet the poor physical condition of this panorama has obscured its greatness.
The squad that the Dutchman inherited was in poor physical condition, with fitness regimes neglected amid a busy summer schedule of exhibition games abroad.
On the other, the Libyan Defense Ministry thickened the ranks with veterans recalled to duty in poor physical condition and cadets with almost no combat training or experience.
