"strenuous study" is a correct and usable phrase in written English.
You can use it to refer to intense or thorough study, especially when the effort is difficult or demanding. For example: "After months of strenuous study, I finally passed my exams."
For all the spirited comedy of "As You Like It," true love arrives only after strenuous study and emotional hardship.
Churchwell's first book is a strenuous study of the distorting power of biographers, novelists, scandalmongers and conspiracy theorists, who, she argues, have turned Marilyn Monroe from a magazine model and movie star into an icon, a myth and a metaphor.
Venerable Kelsang Wangmo is finally rewarded for mastering the strenuous study course in highest Buddhist philosophy.
As in Japan, students in China tend to do their most strenuous studying in high school.
Although she had a few terms off due to illness the longest of which was in 1845 1846, when she was enrolled for only eleven weeks —she enjoyed her strenuous studies, writing to a friend that the Academy was "a very fine school".
However, strenuous work tasks in this study include lifting of heavy burdens and awkward body positions, which may rather call for high muscular capacity than aerobic capacity.
Risk factors identified in previous studies, such as parity and strenuous work can hardly be treated or managed for prevention purposes.
A recent study found that moderate exercise may be more beneficial for weight loss than strenuous work out sessions.
Strenuous work, pre-pregnancy history of LBP and parity have previously been identified as risk factors for PGP in studies applying bivariate statistics [ 4- 6] and multivariable models [ 9].
Roller derby is strenuous work.
