Originally Posted by PhilSAFC
I did squats, leg press and lunges on Wednesday and my legs are still aching a bit today. there is no way I could go and squat again tonight. For example.
My best advice would be too push through it and you'll quickly adapt. You don't have to squat 4x a week or anything (although it would be very, very effective for gains), but muscle protein synthesis within a muscle remains elevated for generally up to 48 hours after you train it (talking about in naturals). So if you hit legs on monday and don't directly hit them again until the next monday, that's a considerable amount of time for muscle protein synthesis to be back down to baseline.
I squat 3x a week on top of running 3x a week, boxing training 3x a week, sprints once a week and circuits once a week. The amount of sessions is also going up next week. The body adapts fantastically well.