In Pilates, we use springs as resistance rather than weights. That’s not really news to anyone, but let’s take this metaphor of spring a lot further, especially in this Spring season! Let’s apply the spring to muscles: pulling the spring open (lengthening) followed by closing it (contraction). Just like the two phases of muscle actions: the lengthening or load phase, and the contraction or shortening phase. I see more emphasis on the contraction phrase, but not enough on the lengthening, resulting in short and contracted muscles, which leads to pain and tightness.