To push your character to the limits of physical fitness, you'll want to engage in a comprehensive workout routine that targets every muscle group. Start by having your character perform exercises that challenge their strength and endurance. From intense cardio sessions to heavy lifting, every part of the body should be engaged to ensure balanced muscle growth and development.

Make use of a variety of fitness equipment to maximize your character's muscle growth. Begin with the basics like dumbbells and barbells for strength training. Have your character perform compound movements such as squats, deadlifts, and bench presses to work multiple muscle groups simultaneously. Then, move on to isolation exercises with machines like the leg press, chest fly, and lat pulldown to target specific muscles and enhance definition.

Don't forget about cardiovascular equipment like treadmills, ellipticals, and stationary bikes. These will help improve your character's stamina and heart health, contributing to overall fitness. Incorporate HIIT (High-Intensity Interval Training) sessions to really test their limits and boost muscle endurance.

For a well-rounded approach, include functional fitness equipment such as kettlebells and resistance bands. These tools can help improve your character's agility, balance, and core strength, ensuring that every muscle group is pushed to its peak performance.

By consistently operating your character through this diverse range of exercises and equipment, you'll see significant muscle growth and an overall increase in physical prowess. Keep pushing the boundaries, and watch your character transform into a fitness powerhouse.