Whether you are paddling or even pedaling a kayak, any setup consisting of footrests with a backrest will cause you soreness of some sort in the end because you’re stuck sitting in the uncomfortable L position. Remaining confined in the L position can eventually result in a condition dubbed ‘yak back’, as well as a multitude of other ailments including leg pain, leg numbness, butt pain (a.k.a. ‘yakass’), and many others.
Irrespective of how you use your kayak, the constant pressure your legs apply on your lumbar spine is an unhealthy thing that should be refrained from. However, this problem cannot be circumvented in any kayak that’s either a sit-in or sit-on-top kayak, so what do manufacturers of such kayaks do? They can’t overlook the problem, obviously, since doing so could damage their sales. Instead, they fallaciously advertise their deficient products as being comfortable, ergonomic etc., and they suppose that even if you took one of those kayaks for a 15-20 minute test ride, it would be improbable that you would notice the problem, as it usually takes a longer duration than that for the passenger to start observing noticeable soreness.
They’ll advertise fake features such as ‘new ergonomic design’, ‘improved lumbar support’ and any other amalgamation of buzz words that could relay a false sense of comfort, and deceive people into believing that their problem is solved.
Some kayak manufacturers go even further, and try to convince potential customers that their kayak is as comfortable as a real fishing boat, i.e. a motor boat, hoping that perhaps a few people would be tricked by their smoke and mirrors.
But since kayaking and kayak fishing trips almost always take substantially longer than average test rides, sooner rather than later you will find that the faux-comfort purported by the manufacturers of traditional kayaks is not real comfort, and you will experience serious ergonomic problems resultingly. In this case its very likely that you will give up relinquishing your kayak fishing hobby entirely, as many have done before, or suffer in silence as your kayak works against your very body. The only legitimate way to bypass this plethora of bodily ailments associated with kayak fishing is to switch to a W fishing kayak, as a growing number of kayak anglers have begun to do.