I know it's not really an injury question but I thought you guys would probably be the ones with the right knowledge. Been training for 20 years+ with no back problems. I'm currently training 5 sets of 5 on deadlift on monday, 5x5 front squats on wednesday and 5x5 back squats on friday (all 5 sets are work sets), so a fair volume. I've been making really good gains over the last 6 months and my strength is going up weekly but I am starting to get a fair bit of lower back fatigue.
My question is can I carry on training through this?, Is lower back muscle essentially like all other muscle and eventually I'll adapt to the workload or am I setting myself up for an impending injury?. Many thanks for any replies and only from suitably qualified people please. No opinions please from people who've only been training a week. Thanks.