It is a very reciprocal relationship, and this creates strength adaptation over time, with the traditional concepts of progressive overload. (onnit.com)
Which mechanism causes a specific strength adaptation is important for us to understand, because some mechanisms may enable a strength quality to transfer to an athletic movement more easily than others. (strengthandconditioningresearch.com)
They work due to creating the necessary stress required to create strength adaptations. (anymanfitness.com)