The phrase "activity is needed to" is correct and usable in written English.
It can be used when discussing the necessity of a specific action or task to achieve a goal or outcome.
Example: "In order to improve team performance, activity is needed to foster better communication among members."
Alternatives: "action is required to" or "effort is essential to".
How much physical activity is needed to minimize weight gain in previously obese women?
For teams scraping along in the relegation zone, frantic transfer activity is needed to bring in riders with enough points to ensure they avoid the drop.
In a recent study, Hardman et al.12 showed that frequent physical activity is needed to counteract an exaggerated postprandial metabolic response.
A disease-specific measurement of functional activity is needed to better understand the burden of illness, inform the design of clinical studies and optimize care.
Further investigation using meaningful activity is needed to identify integration of the affected upper extremity into individuals' own environments and determine how it affects overall life roles and satisfaction over time.
After snack time, your child should do whatever homework or activity is needed to prepare for the next school day.
While this rocket measurement can help improve a spectral model for quiet Sun conditions, many additional measurements over a wide range of solar activity are needed to fully address the spectral model variations.
Plans to monitor all Britons' online activity are needed to help society fight crime and "save lives", Home Secretary Theresa May has said.
Interventions encouraging adoption of healthy diets and increased physical activity are needed to achieve national goals for preventing and treating hypertension, cardiovascular disease, diabetes, and other chronic diseases.
Further studies of synergistic activity are needed to evaluate this possibility.
In addition, in four articles muscle activity was needed to be read from figures, which was somewhat inaccurate.
