There are over 16 different classes offered ranging from extremely strenuous to light stretching depending on your personal fitness level.

Their training is depicted as extremely strenuous, with a few dying before completion.

Prisoners were forced to work extremely strenuous labour for up to 14 hours in a single day.

"These men have had an extremely strenuous two weeks," McCoy announced with a theatrical flourish.

What to Expect The climb is not extremely strenuous but it is steady and requires stamina.

I take lots of walks and ride my bike, but I am careful not to do anything extremely strenuous.

This process is extremely strenuous on Miho's health.

"The past hours and days were extremely strenuous and I doubt that the future will be less demanding."

The alternative is extremely strenuous, your Majesty.

The journey was extremely strenuous and both men fell ill from a variety of tropical diseases.