Carmen Jackinsky of suburban Portland, Oregon, is an inventor, coach and W55 race walker. Not sure which order she would use. But proving again that masters are far more interesting than kiddies, I point to my profile of Carmen in Times of San Diego. She walked funny as a child, she recalls, and was put in dancing. Then she wouldn’t stop hanging from a bar upside down and became a gymnast. Then she injured her back and was told she’d never be an athlete again. So she took up race walking. And then she decided to improve the design of…