This is the 10949th most frequent Polish word.
ergometrze
"Ergometrze" is the locative case of "ergometr," meaning "on/in the ergometer," a device used to measure work or for exercise, such as a rowing machine or a stationary bike.
In this sentence, 'ergometrze' is the locative form of the noun 'ergometr', describing the place where the action of exercising occurred.
Ćwiczyłem na ergometrze przez godzinę.
I exercised on the ergometer for an hour.
Here, 'ergometrze' again uses the locative case, indicating the entity ('ergometr') where the issue is located.
Czy zdołałeś naprawić problem z ergometrze?
Were you able to fix the issue with the ergometer?
In this example, 'ergometrze' is utilized in the locative case to specify the equipment ('ergometr') intended for the exercises.