"Core activation" refers to the contraction of the muscles in our midsection, particularly the abdominal, back, and hip muscles. It is important for providing stability and support to our spine and protecting it from injury. Full definition
Overhead pressing done while standing creates a high level of core activation. (sixstarpro.com)
The problem of the traditional plank is that it doesn't offer deep core activation on the long run. (fitnessandpower.com)
The program flows really well, as it focuses on core intensity the first few classes then leads to a more comprehensive core activation throughout a conventional yoga flow. (codyapp.com)