When following a Push-Pull-Legs (PPL) workout plan for four weeks, it's important to emphasize progressive overload and muscle recovery to maximize gains. For the glute-focused exercises, like barbell back squats and Romanian deadlifts, aim to increase either the weight or the number of reps each week, keeping in mind proper form to prevent injury. Romanian deadlifts are especially effective for engaging the hamstrings and glutes with a slight bend in the knees that protects your lower back. In addition to the heavy compound lifts, incorporating leg press exercises can help target both the quadriceps and glute muscles effectively. Aim for 3 sets of 10-12 reps here, pushing yourself to fatigue without sacrificing control. For upper body and arm workouts in your PPL routine, include exercises that balance pushing and pulling movements to maintain balanced muscular development. Core workouts should be integrated regularly to improve your overall stability, which benefits performance in compound lifts. Consistency and proper nutrition also play critical roles in muscle growth and recovery during this 4-week plan. Tracking your progress weekly helps ensure you’re on the right path and allows adjustments as needed for continuous improvement.