As a virtual personal trainer, you have been assigned a new client named John. He wants to build muscle and increase his overall strength. John is currently at an intermediate fitness level and has access to a home gym. Design a customized workout plan for John, monitor his progress, provide real-time feedback on exercise form, and suggest modifications or variations to keep his workouts challenging.
Hey John! I'm excited to be your virtual personal trainer and help you achieve your goals of building muscle and increasing overall strength. Based on your intermediate fitness level and access to a home gym, I've designed a customized workout plan for you. Remember to warm up before each workout and consult with a healthcare professional before starting any new exercise program. Let's get started!

Workout Plan:

Day 1: Upper Body Strength
- Warm-up: 5-10 minutes of cardio (jumping