I’ve been a commute cyclist since 1992, biking between several hundred and a couple thousand miles a year, mostly in 15-30 minute chunks. I’ve also been a lap swimmer since the mid-80s. In October of 2010 I was diagnosed and treated for a sacroiliac sprain, which basically means that one of my pelvic bones had gotten stuck, rotated backwards compared to the bottom of my spine, called the sacrum. Part of the treatment was refraining from all exercise except walking for several months, while the joint healed. A big change. In January I started adding exercises back in, and last month I started biking and swimming again, slow and careful.

In the meantime, I had been paying close attention to my posture, and doing a lot of physiotherapy for my spine and hips. My experience the effects of biking and swimming is quite different than it used to be. The bikes that I’ve tried now feel badly designed. They make me lean forward too far, hunch my shoulders, round my upper back, and jut my neck forward. And after biking even a few minutes, my low back feels all crunched up, especially in the L5/S1 region, and my psoas muscles feel tight. Swimming feels good while I’m doing it, but afterwards my shoulders are rounded forward and my thoracic curve is exacerbated. Both exercises feel like they are working against the progress I’ve made with my posture.

Can anyone recommend some stretches or exercises to specifically counteract the negative effects of swimming or biking? (I mostly swim freestyle/crawl.) I’d appreciate the help!

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