Resistance Training during Weight Loss

The Importance of Resistance Training during Weight Loss

When weight loss is your main fitness goal, resistance training is a critical piece of your physical fitness plan. Resistance training not only helps you reach peak physical readiness as a Service Member, but it also helps you achieve and maintain your weight loss goal while supporting overall health.

resistance training infographic

Creating a caloric deficit is one strategy used as part of a holistic weight loss plan. However, it’s important to understand that when you’re in a caloric deficit, you might lose both fat mass and muscle mass. Losing too much muscle mass can lead to decreased resting metabolism, reduced physical ability in daily activities, increased injury risk, and make for an overall more challenging weight-loss journey.  Conducting consistent and proper resistance training during a period of caloric deficit is key to minimizing muscle loss and creating sustainable weight loss outcomes. 

Resistance training supports a holistic weight-loss plan by increasing resting metabolism, or the number of calories your body burns while at rest. After a resistance training session, your resting metabolism can be higher for up to 180 minutes because your body requires more energy to recover. The amount your metabolism increases during this short period varies based on the overall volume and intensity of your workout.  Over time, consistent resistance training can increase muscle mass. This additional muscle requires energy for maintenance, which leads to an increase in long-term resting metabolism. Improvements in both short-term and long-term resting metabolism can lead to a reduction in body fat.

Resistance training also has many additional health benefits that can improve your quality of life. In addition to strength gains, resistance training decreases insulin resistance, which helps control your blood sugar and is especially important for people with type 2 diabetes. Consistent resistance training also lowers blood pressure, improves cholesterol, and increases bone mineral density. Resistance training also decreases symptoms of anxiety and depression.

Benefits of resistance training when taking obesity management medications

Obesity management medications can be prescribed as a treatment option for some qualifying people to help manage the disease. These medications might lead to larger or more rapid decreases in weight, which increases the likelihood of losing too much muscle mass. If you’re taking obesity management medications, make sure to include resistance training and follow these nutrition practices in your holistic weight loss plan . This will help you achieve your goals while benefiting your overall health and physical performance. 

Guidelines for getting started with resistance training

In order to realize these benefits, start by resistance training two  days per week, targeting all major muscle groups: arms, shoulders, chest, back, abdomen, legs, and hips. Do at least one set of 8–12 repetitions from each of the foundational movements. The resistance training handout below provides exercise examples for each of these movement categories. The key is to start off slowly and to stay consistent. After a few weeks of consistent workouts, you can use the resistance training pyramid to learn how to plan and progress your workouts further. As your physical fitness improves, increase the volume or intensity of your workouts over time to avoid slowing progress or hitting a plateau. 

Additional resources

A holistic approach can help you reach your goals and sustain them. Check out HPRC’s “Get into Fighting Weight: A Total Force Fitness Guide” for additional strategies. 

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Published on: August 5, 2026

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Bellicha, A., van Baak, M. A., Battista, F., Beaulieu, K., Blundell, J. E., Busetto, L., Carraça, E. V., Dicker, D., Encantado, J., Ermolao, A., Farpour-Lambert, N., Pramono, A., Woodward, E., & Oppert, J. M. (2021). Effect of exercise training on weight loss, body composition changes, and weight maintenance in adults with overweight or obesity: An overview of 12 systematic reviews and 149 studies.Obesity Reviews22(Suppl. 4), e13256. doi:10.1111/obr.13256.

Binmahfoz, A., Dighriri, A., Gray, C., & Gray, S. R. (2025). Effect of resistance exercise on body composition, muscle strength and cardiometabolic health during dietary weight loss in people living with overweight or obesity: A systematic review and meta-analysis. BMJ Open Sport & Exercise Medicine, 11(3). doi:10.1136/bmjsem-2024-002363. 

Lopez, P., Taaffe, D. R., Galvão, D. A., Newton, R. U., Nonemacher, E. R., Wendt, V. M., Bassanesi, R. N., Turella, D. J. P., & Rech, A. (2022). Resistance training effectiveness on body composition and body weight outcomes in individuals with overweight and obesity across the lifespan: A systematic review and meta-analysis. Obesity Reviews23(5). doi:10.1111/obr.13428.

Mechanick, J. I., Butsch, W. S., Christensen, S. M., Hamdy, O., Li, Z., Prado, C. M., & Heymsfield, S. B. (2025). Strategies for minimizing muscle loss during use of incretin-mimetic drugs for treatment of obesity. Obesity Reviews26(1). doi:10.1111/obr.13841.

Sardeli, A. V., Komatsu, T. R., Mori, M. A., Gáspari, A. F., & Chacon-Mikahil, M. P. T. (2018). Resistance training prevents muscle loss induced by caloric restriction in obese elderly individuals: A systematic review and meta-analysis. Nutrients10(4), 423. doi: 10.3390/nu10040423.

Strasser, B., & Schobersberger, W. (2011). Evidence for resistance training as a treatment therapy in obesity. Journal of Obesity, 2011, Article 482564. doi: 10.1155/2011/482564.

U.S. Department of Health and Human Services. (2018). Physical activity guidelines for Americans. Retrieved February 2, 2026, from https://health.gov/paguidelines/second-edition/pdf/Physical_Activity_Guidelines_2nd_edition.pdf

Westcott, W. L. (2012). Resistance training is medicine: Effects of strength training on health. Current Sports Medicine Reports.11(4):209-216. doi: 10.1249/JSR.0b013e31825dabb8.

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