Complex sentence: While paddling in the standing position has been practiced for centuries in canoes (including Umiaks, Pirogues, and native dugout canoes) recently kayakers have attempted paddling while standing up, but so far, this has been possible only in twinhull kayaks of the W type.
Split into simpler sentences: While paddling in the standing position has been practiced for centuries in canoes (including Umiaks, Pirogues, and native dugout canoes) recently kayakers have attempted paddling while standing up. So far, this has been possible to mainly in twinhull kayaks of the W type.