"strengthen activity" is a correct and usable phrase in written English.
You can use it when discussing ways to improve or enhance a certain activity or process. Example: "We need to implement a new strategy in order to strengthen activity in our sales department."
Additionally, two or more days of muscle strengthening activity per week is also recommended.
According to the Health Survey for England in 2016, 34% of men and 42% of women are not hitting the aerobic exercise targets, and even more – 69%and77%7% respectively – are not doing enough strengthening activity.
They also recommend moderate- to high-intensity muscle strengthening activity at least two days per week for additional health benefits.
Twice-weekly strengthening activities for all major muscle groups (legs, hips, back, abdomen, chest, shoulders, and arms) are recommended, too.
Strengthening activities motivate changes in behavior and/or allow a more effective use of resources to improve (multiple) health services.
2021: Reuters quotes Mr Amano as saying: "My impression is that the Japanese side is strengthening activities to overcome, to stabilise the reactors.
Now, you'd still need to do some "muscle strengthening activities" twice a week.
In addition they also recommend strengthening activities such as push-ups, sit-ups or lifting weights at least 2 days per week.
The Flex model also creates natural and potentially rich opportunities for students to interact with other students to engage in challenging projects based on each student's needs while preserving and potentially strengthening activities such as fitness and the arts.
Examination of donors' claims that a large proportion of their funds support health systems strengthening activities would be of particular interest.
