I started basic barbell training 3 times per week, including squats and deadlifts, about 3 months ago. I guess I didn't notice any problems with hip flexors wh

I started basic barbell training 3 times per week, including squats and deadlifts, about 3 months ago. I guess I didn't notice any problems with hip flexors when sitting on a few very long flights recently, so maybe you're right.