Sounds pretty bad and I strongly recommend you seek professional medical advice. I would start with a sports physio. They will do a basic posture/alignment check and look for obvious causes of your back pains, which could me a number of things really...there is no guarantee they will find the cause/solution and may refer you to other specialist for further examination.

I broke my spine when I was younger and this weakened my lower back. I made full recovery but still had a weaker back until I trained hard to strengthen it in the gym. Made all the difference and my back is now the strongest part of my body. In kitesurfing the back muscles are probably the most solicited and at the highest intensity as well, and therefore it should be the strongest.

But don't start training until you get checked out and find the cause of your pain.

Here' some light reading to get your started : physioworks.com.au/Injuries-Conditions/Regions/lower_back_pain

Christian

Sounds like the best thing to do ill look into it cheers mate

airush razor in pretty hardcore, could be the problem there!

Also stretching is really good to relieve back pain (hip flexers, hamies, back) and dealifts are really good to strengthen your spinal erector muscles but form has to be perfect or u will do more harm than good and training core helps alot as well. The problem could also be attributed to the harness, might be better off on a seat harness if the problems persists. But as cbulota said get checked out first and then hit the gym hard over winter.

Yeah. Sounds like it's more than an equipment issue. Go see the doc

Definitely see the physio and find out whats going on, shouldn't have that pain at your age.... at my age, that's a different story, after blowing my ribs with a waist harness due to tightening it too tight thinking I would get more support for my lower back pain, then a few years later again with a seat harness, desperation set in and now ride with the LF boardshort harness. Best thing I ever did, harness straps wrap around your butt rather than your lower back and the leg straps actually wrap around your legs than up your arse like a seat harness. The loading against the back is almost non existent with this style of harness. Due to the constant rib injury I no longer unhook and just cruise around like the old man that I am on the surfboard. I reckon if I got onto to this type of harness in the early days I would still be unhooking......and damn I miss unhooking...

Hope you find a solution that works best for you

Just curiously do you work at a desk?

Can you pinpoint the area you are having issues?

cheers

Like plummet said kiting fixes my back too. When i unhook and crash still holding the bar i feel my back crack into place and it feels awesome afterwards.

I remember when I was learning my lower back got a bit sore and I realised it was my bad form. I suggest getting a mate to film you to see if you're kiting hunched over or with knees too bent. This puts pressure on your back.

If you focus on keeping your front leg and back in a straight line i reckon it would help.

In most sports, especially heavy lifting, incorrect form and posture are the main causes of pain and injuries.