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Unlike running or my herky-jerky stints on the Nordic Machine strider in the basement, there was no specter of calories.

He had seen water striders, those insects that support themselves in swift streams on long legs kept wide apart.

“He’s a long strider. It doesn’t look like he would be fast, but he is and I think he’s done a nice job at first base.”

Trygstad, an avid fly fisherman, has long observed water striders and would like to further study their movements.

Biologists and physicists have long studied water-walking insects, and already, scooting water striders have helped engineers build robots that can leap from the water’s surface.