Strength Training or Cardio: Which Is Better for Improving Men's Fitness?

Strength training and cardio improve different aspects of men's fitness

You may train consistently for weeks yet still feel out of breath after climbing three flights of stairs; or run for quite a while but struggle to lift a case of water — these situations are common among men who focus too heavily on one training method. Strength training helps the body generate force and handle loads better, while cardio develops cardiorespiratory endurance. Understanding the role of each type of exercise will help you choose an appropriate training ratio instead of putting in considerable effort while your fitness weaknesses remain unchanged.

Men's fitness is not just about muscle or the ability to run for a long time. It includes strength, muscular endurance, load-bearing capacity, and cardiorespiratory fitness. According to the World Health Organization's physical activity guidelines, adults should combine aerobic activity with muscle-strengthening exercises on at least two days per week (WHO, 2020). Therefore, strength training and cardio should complement each other rather than be treated as mutually exclusive choices.

Mechanistically, resistance training creates neuromuscular stimulation, encouraging the body to recruit muscle fibers and adapt to loads. Cardio, meanwhile, improves the ability to deliver, transport, and use oxygen. Problems arise when the training schedule is too unbalanced: running alone may not provide enough stimulus to maintain muscle, while lifting weights alone can neglect cardiorespiratory endurance. The solution is to identify your weakness first, prioritize it, and maintain the other method at an appropriate dose.

Strength training develops muscle and load-bearing capacity

Squats train the movements of sitting down and standing up; deadlifts simulate lifting objects from the ground; push-ups and pull-ups develop upper-body pushing and pulling ability. When performed with proper technique, resistance exercises help increase strength and muscle mass. According to ACSM, progressive resistance training also helps maintain bone health and the ability to perform daily tasks.

The key is not to lift extremely heavy weights from the outset, but to use controlled progressive overload. Beginners can choose a load that leaves them feeling capable of performing about 2–3 more repetitions with proper technique at the end of a set. Increase the weight, repetitions, or sets only when your range of motion remains stable and your body has recovered. For detailed instructions, read this guide to strength exercises for male beginners.

Cardio improves cardiorespiratory and exercise endurance

Brisk walking, running, cycling, and swimming require the heart, lungs, and circulatory system to adapt to prolonged activity. According to WHO, regular aerobic activity helps improve cardiorespiratory fitness. In daily life, this improvement may be noticeable when you can walk farther or climb stairs with less shortness of breath.

So, does cardio improve men's fitness? Yes, especially endurance, but cardio does not provide the same level of resistance stimulus needed for muscle growth. Steady-state cardio at a moderate intensity is suitable for accumulating exercise time. HIIT consists of intense intervals alternating with recovery periods; it saves time but places greater demands on recovery. According to ACSM, intensity should be selected based on your fitness level and health status; HIIT does not need to be included in every session.

Comparing the two methods across 6 criteria

The table below shows the practical differences between the two methods. It is a decision-making framework, not a rigid rule for everyone.

Comparison of strength training and cardio

Fat loss still depends primarily on energy balance. Cardio increases energy expenditure, while strength training helps preserve lean mass during periods of energy restriction; this conclusion is consistent with a systematic review by Weinheimer and colleagues published in Nutrition Reviews in 2010. Therefore, prioritize the method that addresses your current goal, then use the other to build well-rounded fitness.

Training ratios for 3 men's fitness goals

A single schedule cannot simultaneously suit someone who wants to build muscle, lose fat, and prepare for long-distance running. The ratio of training sessions should be based on your primary goal, experience, and available time. People who are sedentary, overweight, injured, or have underlying medical conditions should start gently; WHO recommends that people who have not reached the target activity level begin with small amounts and gradually increase frequency, intensity, and duration (WHO, 2020).

If you combine both types of training in one session, perform the most important part while you are still fresh. If both are demanding, they should be separated into different sessions. The session ranges below are practical frameworks proposed by this article, not mandatory recommendations for everyone; total training volume, nutrition, sleep, and recovery capacity ultimately determine whether the body adapts.

For muscle growth, prioritize 3–4 strength-training sessions

For muscle growth, this article's practical framework suggests 3–4 resistance-training sessions per week, targeting the major muscle groups and increasing loads gradually. You can add 1–3 light cardio sessions, such as brisk walking or cycling for 20–30 minutes per session, to maintain cardiorespiratory fitness without creating excessive fatigue. This allocation still needs to be adjusted according to recovery capacity and incorporated into WHO's general physical activity recommendations (2020).

If you train both in the same session, lift weights first. Long or intense cardio can be separated by a few hours or moved to another day. Cardio does not automatically cause muscle loss: a review by Wilson and colleagues published in the Journal of Strength and Conditioning Research in 2012 found that the interference effect depends on the exercise type, frequency, and duration. An energy deficit, inadequate protein intake, excessive cardio, and poor sleep are often greater concerns.

For fat loss, combine 2–4 cardio sessions

Within the practical framework proposed by this article, people aiming to lose fat can maintain 2–4 cardio sessions and 2–3 strength-training sessions per week, depending on their activity level and recovery capacity. This is not a mandatory frequency; WHO (2020) recommends that adults accumulate aerobic activity and perform muscle-strengthening exercises on at least two days per week. Cardio increases energy expenditure; resistance training gives the body a reason to continue preserving muscle during weight management.

But wait: cardio cannot fully compensate for an uncontrolled diet. According to the American College of Sports Medicine consensus, weight management requires a combination of physical activity and adjustments to energy intake. Do not suddenly jump from two walking sessions to five intense running sessions. You can also consult this nutrition guide for fat loss and muscle preservation in men to build an appropriate diet.

For endurance, prioritize 3–5 cardio sessions

For an endurance goal, this article's practical framework suggests 3–5 cardio sessions per week, with most of the training time at a moderate intensity. This frequency should be adjusted to align with WHO's recommended total aerobic duration (2020) and your individual recovery capacity. You can use the CDC-recommended “talk test”: at moderate intensity, you can talk but not sing; at vigorous intensity, you can say only a few words before needing to catch your breath.

If you combine both types of training, do cardio first when endurance is the priority. Around two strength-training sessions per week are still necessary to support muscle and load-bearing capacity, consistent with WHO's recommendation to perform muscle-strengthening exercises on at least two days per week (2020). During each phase, increase either duration or intensity, not both at once, to avoid accumulated soreness and interruptions to your training schedule.

A 7-day training schedule to improve men's fitness

Training hard continuously can impair recovery; cardio alone lacks sufficient muscular stimulus, while strength training alone neglects cardiorespiratory fitness. The weekly schedule below, consisting of three strength sessions, two cardio sessions, one day of light activity, and one rest day, is a practical framework proposed by this article, not a mandatory schedule for everyone. After four weeks, assess the load, repetitions, cardio duration, shortness of breath, and sense of recovery rather than looking only at body weight.

People with cardiovascular disease, high blood pressure, chest pain, dizziness, injuries, or a prolonged period of inactivity should consult a physician or qualified professional before increasing intensity.

A 7-day framework combining cardio and strength training

1. Monday: full-body strength training, 45–60 minutes.

2. Tuesday: moderate cardio, 20–30 minutes.

3. Wednesday: full-body strength training, 45–60 minutes.

4. Thursday: walking and light recovery activity.

5. Friday: full-body strength training, 45–60 minutes.

6. Saturday: moderate cardio, adjusted to your fitness level.

7. Sunday: rest and prepare for the new week.

The 45–60-minute strength sessions and 20–30-minute cardio sessions are practical durations proposed by this article and should be shortened or adjusted based on your fitness level and recovery capacity. During strength sessions, you can choose squats, hip-hinge movements, push-ups, pulling exercises, and planks. Prioritize technique over load; this guide to safe squat, push-up, and plank technique for beginners will help you control your form more effectively.

Exercise order changes according to the primary goal

The rule is straightforward: if you want to build muscle or strength, lift weights first; if you want to increase endurance, do cardio first; for general health, you can alternate the order. When both parts are demanding, separate them into different sessions and avoid scheduling HIIT too close to a leg workout if your performance is declining.

Persistent soreness, poor sleep, or declining training loads are signs that adjustments are needed. Shorten your cardio, replace running with light cycling, or add a rest day. Recovery is not merely the gap between sessions; it is when the body adapts to the training stimulus.

Three metrics for tracking progress after 4 weeks

Previously, you may have trained diligently without knowing where you were making progress. After four weeks of record-keeping, the picture will become clearer: strength is measured by the weight lifted or the number of repetitions performed with proper technique; endurance is reflected in covering the same distance with less shortness of breath; recovery is indicated by sleep, soreness, and readiness before training.

If several metrics worsen across several consecutive sessions, reduce your training volume instead of forcing yourself to train hard. The bridge from an unfocused schedule to balanced fitness is very specific: choose one priority goal, follow the 7-day framework for 4 weeks, and record every session. Then adjust your strength-to-cardio ratio based on the actual results.

Choose your primary goal — muscle growth, fat loss, or increased endurance — then follow the 7-day framework for 4 weeks and reassess your metrics. If muscle growth is your priority, continue with this beginner's strength-training guide for men; if weight management is your priority, see this nutrition guide for fat loss and muscle preservation.

References

World Health Organization. WHO Guidelines on Physical Activity and Sedentary Behaviour. WHO; 2020. https://www.who.int/publications/i/item/9789240015128

American College of Sports Medicine. American College of Sports Medicine Position Stand: Progression Models in Resistance Training for Healthy Adults. Medicine & Science in Sports & Exercise. 2009;41(3):687–708. https://doi.org/10.1249/MSS.0b013e3181915670

Donnelly JE, Blair SN, Jakicic JM, Manore MM, Rankin JW, Smith BK; American College of Sports Medicine. Appropriate Physical Activity Intervention Strategies for Weight Loss and Prevention of Weight Regain for Adults. Medicine & Science in Sports & Exercise. 2009;41(2):459–471. https://doi.org/10.1249/MSS.0b013e3181949333