Cardio before or after weight training: Which strategy should you choose?

Cardio before or after weight training: the answer depends on your goal

Before determining whether it is better to do cardio before or after weight training, it is essential to understand that these two types of training do not engage exactly the same physical capacities.

The best choice therefore depends mainly on your goal: building muscle mass, improving endurance, promoting fat loss during a cutting period, or simply maintaining good physical condition.

Weight training: Building strength and muscle mass

The main goal of weight training is to stimulate adaptations related to strength and muscle development. During a strength training session, the body particularly seeks to:

• increase maximal strength;
• stimulate muscle hypertrophy;
• improve the muscles' ability to produce intense effort;
• gradually improve physical performance.

To achieve these goals, it is important to maintain good execution quality, sufficient intensity, and optimal concentration during exercises.

Cardio: improving endurance and cardiovascular capacity

Cardio has different goals than weight training. It mainly aims to develop capacities related to endurance and the functioning of the cardiovascular system.

Regular cardio training can contribute to:

• improving the efficiency of the cardiovascular system;
• increasing resistance to effort;
• improving the body's ability to use oxygen;
• promoting better overall physical condition.

Cardio and weight training are therefore not opposing practices. On the contrary, they can complement each other perfectly in a balanced training program.

Why the order between cardio and weight training can influence your session?

When cardio and weight training are performed in the same session, they use certain common resources:

• available energy;
• muscle reserves;
• nervous recovery;
• the ability to maintain high intensity.

The order in which the exercises are performed can therefore influence the quality of the training and the performance obtained. Intense cardio performed before a weight training session can cause prior fatigue, which may limit the ability to maintain the same loads, the same training volume, or optimal execution of movements.

Conversely, when the primary goal is to improve cardiovascular capacity, placing cardio at the beginning of the session can allow more energy and concentration to be devoted to this specific component of the training.

The choice between cardio before or after weight training must therefore be guided by the main objective sought and by the priority given to each physical quality.

Doing cardio before weight training: Advantages and limitations

Doing cardio before a weight training session can be relevant in certain situations, but its impact mainly depends on the intensity and the desired goal. It is important to distinguish between two approaches: cardio used as a warm-up and cardio performed as a real cardiovascular workout.

Light cardio before weight training: A good warm-up

Low-intensity cardio performed for a few minutes can effectively prepare the body for exertion. This phase allows in particular to:

• gradually increase body temperature;
• activate blood circulation;
• prepare muscles and joints;
• improve mobility before strength exercises.

Activities such as brisk walking, low-intensity cycling, or a few minutes of jumping rope can be perfectly integrated before a weight training session.

The objective, however, remains to prepare the body without generating fatigue that could reduce the quality of the training.

Intense cardio before weight training: A risk of decreased performance

When cardio becomes long or intense, it can negatively influence the subsequent weight training session. Prior fatigue can notably lead to:

• a decrease in available strength;
• a drop in intensity during exercises;
• more difficult recovery.

For a goal of muscle development or strength progression, it is generally preferable to conserve energy for priority resistance exercises. Conversely, if the main goal is to improve endurance, placing cardio first can be a suitable strategy to devote more resources to this physical capacity.

The choice therefore depends primarily on the priority given to training: developing strength and muscles, or improving cardiovascular performance.

Doing cardio after weight training: Why is this strategy often preferred?

Doing cardio after a weight training session is a very common arrangement, especially among practitioners who seek to build muscle mass, improve their body composition, or optimize a cutting period. This strategy is based on a simple idea: conserve energy for strength exercises, then perform cardiovascular work afterward.

Weight training first: Preserving performance

When the main goal is muscle progression, placing weight training before cardio generally allows for better energy availability for important exercises. This notably allows for:

• maintaining higher loads;
• maintaining good intensity during the session;
• preserving optimal execution technique;
• maximizing muscle stimulation.

Weight training exercises, especially compound movements like squats, bench presses, or pull-ups, require significant muscular and nervous involvement. Performing intense cardio beforehand can therefore reduce the quality of these exercises.

Cardio after weight training: an interesting approach during a cutting period

During a cutting period, the goal is generally to reduce body fat while retaining as much muscle mass as possible. In this context, placing cardio after weight training can be a relevant strategy because the priority remains to maintain effective resistance training.

Cardio then complements the session by increasing energy expenditure, without decreasing the effort devoted to muscle development. Activities such as:

• brisk walking;
• moderate intensity cycling;
• continuous low-intensity cardio;

are often favored because they increase activity volume while limiting additional fatigue.

The limitations of cardio after weight training

Even if this organization has several advantages, it is not ideal in all situations.

Cardio that is too long or too intense after a demanding session can also increase overall fatigue and slow down recovery. It is therefore important to adapt:

• the duration of cardio;
• its intensity;
• its frequency in the week;
• depending on the training level and objectives.

For example, after a particularly intense leg session, light cardio may be more suitable than HIIT training.

In which cases should cardio be prioritized after weight training?

Cardio after weight training is generally beneficial when the main objective is to:

• build muscle mass;
• improve body composition;
• support a cutting period;
• maintain good physical condition.

However, if the primary objective is endurance performance, it may be preferable to place cardio at the beginning of the session or to dedicate a specific session to it. The ideal order therefore always depends on the priority given to the training. For the majority of fitness and bodybuilding enthusiasts, performing cardio after the session helps preserve the quality of muscle work while benefiting from the advantages of cardio.

Cardio before or after weight training depending on your goal

The choice between cardio before or after weight training depends mainly on your goal. The strategy will differ depending on whether you are looking to lose fat during a cutting period, maintain your physical condition, or build muscle mass.

In summary, for most practitioners whose goal is to improve their physique, performing cardio after weight training generally allows them to conserve the energy needed for strength exercises while effectively incorporating cardiovascular work.

What type of cardio to choose before or after a weight training session?

Not all types of cardio stress the body in the same way. The choice depends mainly on the objective, training level, and recovery capacity. Cardio should be considered as a complement to weight training, and not as a way to compensate for an unbalanced diet or a poorly structured program.

HIIT: Effective but demanding

HIIT (High Intensity Interval Training) alternates intense effort phases with recovery periods. It effectively improves cardiovascular capacities through relatively short sessions.

However, its high intensity generates significant fatigue, particularly muscular and nervous. It is therefore not always ideal after a demanding weight training session, especially after a leg workout. HIIT is especially interesting when:

• the cardiovascular objective is a priority;
• recovery is sufficient;
• it is intelligently integrated into the training schedule.

Jumping rope: A complete cardio workout

Jumping rope is an effective activity for improving endurance, coordination, and explosiveness. It can be used:

• as a warm-up for a few minutes before a session;
• as a cardio session in the form of intervals.

However, it requires good technical mastery to limit stress on the ankles, knees, and calves.

Brisk walking: An ideal option for recovery

Brisk walking is often underestimated, yet it represents a particularly interesting solution for increasing energy expenditure with low fatigue. It is especially suitable during a cutting period because it allows for adding cardio volume while preserving muscle recovery. Examples:

• 30 to 45 minutes after a weight training session;
• incline walking on a treadmill;
• gradual increase in daily steps.

In practice, the best cardio is not necessarily the one that demands the most intensity, but the one that can be integrated regularly without compromising progress in weight training.

Frequent mistakes when combining cardio and weight training

Combining cardio and weight training can be very beneficial, but certain organizational errors can limit progress or unnecessarily increase fatigue.

1. Thinking that more cardio necessarily means more results

Constantly increasing cardio volume is not always the best strategy. Excess can lead to:

• significant fatigue;
• decreased performance in weight training;
• more difficult recovery;
• stagnation of progress.

Progression is based on a balance between three essential elements: the stimulation caused by training, recovery, and the body's adaptation.

2. Doing only high-intensity cardio

HIIT is an effective tool for developing cardiovascular capacity, but it should not be the only form of cardio used. Alternating different intensities generally allows for better fatigue management:

• low-intensity cardio;
• basic endurance;
• more intense interval sessions.

A balanced program is often easier to maintain in the long term.

3. Underestimating the importance of recovery

Recovery plays an essential role in training adaptations. It depends notably on:

• sleep quality;
• diet;
• stress level;
• overall training volume.

Two people following a similar program can achieve different results depending on their individual ability to recover.

4. Neglecting the impact of diet

Cardio and weight training cannot be separated from nutrition. Results also depend on the balance between:

• energy intake;
• proteins necessary for muscle maintenance and development;
• carbohydrates;
• sufficient hydration.

Cardio before or after weight training: In summary

The choice between cardio before or after weight training depends mainly on your goal and the priority given to your training.

If your goal is to build muscle mass, improve your physique, or succeed in a cutting period, placing weight training before cardio is generally an effective strategy to preserve your energy and maintain good performance on strength exercises.

Conversely, if your priority is to improve your endurance, performing cardio first may be more relevant. Therefore, there is no single ideal method for everyone.

The best organization is one that sustainably integrates into your schedule, taking into account your goals, recovery, and training level.