With the rising popularity of fitness culture, many people are making use of their off-hours to hit the gym, aiming to build muscle, lose fat, and improve their physique. However, for beginners, how to arrange strength training and cardio can be confusing. Can both be done on the same day? Which one should come first for the best results? 

Can Strength Training Be Combined with Cardio?
At the gym, many people worry that "running burns muscle," a concern rooted in the long-discussed concept of the "interference effect." Dr. Kang Chun-Wei, a physician from Taipei An Hospital&rsquos Rehabilitation Department, explains that earlier studies suggested combining strength training and cardio might hinder muscle hypertrophy, strength, and power.
However, more recent research from 2022 shows that doing strength training and cardio in the same session has little negative impact on muscle growth or strength, especially for beginners. So there&rsquos no need to fear losing muscle if you&rsquore just starting. 

Can You Do Strength and Cardio on the Same Day?
Even though doing both strength and cardio in one day won't cancel out the benefits, Dr. Kang still recommends avoiding it when possible.
He explains that the body is "adaptive"&mdashif you do cardio first, your nervous system prioritizes slow-twitch muscle fibers. Switching immediately to weight training afterward can be inefficient. Plus, doing lower-body strength moves like squats or deadlifts after a run may reduce performance and increase injury risk due to fatigue.It&rsquos best to avoid doing strength training and cardio on the same day! (Image / Courtesy of Heho Health)

How Long Should You Space Out Strength and Cardio?
Ideally, schedule strength and cardio on different days. But if that&rsquos not possible, try to separate the two by at least 3&ndash6 hours. For example, do strength training in the morning and cardio in the evening, or lift weights during lunch and run later at night.
If you absolutely must do both in one session, the better option is to lift weights first, then do cardio. That way, you preserve your energy and focus for proper technique and muscle activation during strength training. 

Best Workout Strategy for Building Muscle and Burning Fat
For those aiming to gain muscle, Dr. Kang recommends limiting cardio to 1&ndash2 sessions per week, for 20&ndash30 minutes each&mdashavoid going over an hour.
Alternatively, High-Intensity Interval Training (HIIT) is a great substitute. HIIT improves cardiovascular fitness and, because its energy and neuromuscular demands are similar to weight training, it&rsquos less likely to interfere with muscle and strength gains. Plus, it&rsquos effective for fat burning. 

Nutrition: The Key to Workout Results
Besides workout planning, nutrition plays a vital role in building muscle and burning fat. Dr. Kang emphasizes that whether it&rsquos a training day or a rest day, getting enough carbohydrates, protein, and fat is crucial.
On training days, make sure to fuel your body sufficiently to support muscle growth. On rest days, you can slightly reduce calorie intake, but it should not fall below 50% of your normal needs. Especially when injured or taking a break from training, many people mistakenly cut food drastically, but the body still needs energy to heal and maintain metabolism.Make exercise a part of your daily habit to age healthily. (Image / Courtesy of Heho Health)

Conclusion
If your goal is to build muscle and lose fat, your training schedule should be flexible based on your time and physical condition. Prioritize strength before cardio, incorporate HIIT, and ensure proper nutrition&mdashthis balanced approach will help you reach your ideal physique and health goals more effectively.