It can be coming from pelvis imbalance and whatever above it is compensating to maintain posture. Unilateral training for legs both quads and hams would be recommended. When doing leg ext or curls, you maybe noticing one side working harder. That will change tension/length relationship at rest...
Asian women are best if you want your wife to stay young looking into 40s and 50s. They look 30s in their 50s while most Western women turn into mammoth in their 40s if they don't take care of themselves
Generally lower the total calories, more protein you will need. So earlier in the diet phase where carbs and calories are higher, less protein needed. Then as you cut your carbs and even fats to further drop calories, you will want more protein.
It's good but challenge is stability when attempting heavy set. Either you gotta set up incline or vertical bench and have someone(or 2) hand it over to you.