Board Thread:Speculation House/@comment-24432027-20160105191441/@comment-26872876-20160106001453

Yang gets stronger by being damaged by her opponents. Think of it like some of those pokemon moves that raise stats... Only the raise comes from being attacked.

Nora can absorb and produce electricity to augment her strength. Think of it like  how athletes juice or how the Halo Spartans were chemically augmented to increase strength. But she does it naturally with electricity.

Almost the same result, but achieved through different means. The only potential difference would be that Yang's ranged attacks might also deal the increased damage where Nora's shouldn't because it is specifically defined as a physical enhancement.