So I’ve been reading a couple of articles on how to increase lower back strength and some of the suggestions included aerobic exercises which was quite funny. You are deluding yourself if you think you can build a stronger lower back with aerobic exercises.
There is no special exercise or a magical way to increase back strength. If you want to get a stronger lower back then you must lift weights or things, the heavier the better. The deadlift is definitely the best exercise for this if you have the equipment and the trick to increase your strength in a short amount of time is to do one rep and low rep, heavy weight training.
Let’s say your one rep deadlift max is 200kg/440lbs. To increase that weight I would start my workout by lifting 200kg, and then I would start reducing the weight discs and do reps until I tire out. After 200kg I would go down to 185kg, to 170kg and then to 150kg. The next day, or two days later, I would start out with 200kg once again and see if I can do 2 reps instead of one this time. If I succeed in doing that then I will increase the max weight with 1-5kg and start from there next time. By doing this type of workout you should be able to increase your lower back strength in a very short amount of time.