September 11, 2025, 2:47 am | Read time: 6 minutes
During dance training, I used to secretly roll my eyes when my coach said things like, “Feel inside yourself, feel your muscles during the movements, notice how they become smoother and more elegant.” Today, I understand what she was hinting at back then: the mind-muscle connection. This concept is a hot topic, especially in strength training. But what exactly is it? How does it work? And are its effects scientifically proven? These are the questions I want to explore here.
First things first: I am now convinced that the mind-muscle connection is a real phenomenon that, when it works, can be felt immediately and can enhance the effectiveness of training. My strength training has–in my very subjective opinion–been transformed by it. But who cares about my personal conviction, right? What matters is what sports science has researched and proven on the topic. Let’s find out!
Mind-Muscle Connection Explained
“Have you ever tried to train when you’re distracted, and you wander around too long between sets, and when you lift the weight, it feels heavier than usual? That’s because your mind isn’t connected to your muscles,” bodybuilding legend Arnold Schwarzenegger was quoted in his newsletter by “Men’s Health” in 2021 on the topic of the mind-muscle connection.
“To achieve the perfect pump, your mind must be the guide of your body and think about every part of the movement, every contraction, every tension. When your mind is involved in your training, you can’t lose. I see it as a form of meditation! The more I focus on lifting, the more present I am in the moment, which means I can precisely feel how my body reacts to the lifting. Get to know your body and make your mind work in sync with it,” Schwarzenegger said.
Simply put, the concept involves the strategy of consciously focusing on the working muscles during exercise execution. The belief is that you can perform exercises more correctly and effectively if you are fully engaged and mentally feel the muscle’s work (contracting and stretching).1 This way, you should also be able to tell if an exercise is really targeting the intended muscle or challenging it enough. If not, the technique might be sloppy, the weight insufficient, or something similar.
Research Status
Various studies have already examined the effects of the mind-muscle connection–especially in relation to strength training.
Muscle Activity
A 2017 study investigated the effect during push-ups and concluded that there was a nine percent increase in chest muscle activity when participants consciously focused on the chest muscle during the push-up execution.2 A 2016 study showed that the mind-muscle connection increased the activity of the chest muscles and arm muscles (triceps) examined during bench presses.3
Muscle Growth
According to a 2018 study, the connection between mind and muscle can also promote hypertrophy, or muscle growth. The effects on the elbow flexor and quadriceps were examined. Among those who focused on their target muscle during training, researchers found a significant increase in muscle thickness.4
Some Muscles Easier to Activate Than Others
Also interesting are further insights from the previously mentioned 2017 study. It additionally examined whether training experience plays a role in the implementation or effect of the mind-muscle connection. It compared one of the four major muscle groups, the chest, with a small muscle, the triceps.
The result: Chest muscle activity increases through conscious focus on the muscle even in strength training beginners, while triceps activity does not. The ability to consciously target the triceps through focused training and thus increase its activity seemed to correlate with the training experience of the participants. However, more research is needed to generally and reliably conclude that the mind-muscle connection is easier to achieve with large muscles than with small ones.
Especially the Eccentric Phase Benefits
The leaders of a study published in 2025 examined the mind-muscle connection in CrossFit athletes. They tested the effect of mental focus on movement phases in complex, multi-joint strength exercises. They compared the concentric and eccentric phases. The combination of mental and physical training showed particular effectiveness in the eccentric phase (downward movement, muscle stretching). It significantly improved strength and performance compared to the control group without mental training. The concentric phase (upward movement, muscle tension) also showed an effect, but less pronounced than in the eccentric phase.5
7 Exercises That Really Make My Shoulders Burn
8 Effective Cable Exercises for a Strong Upper Body
How to Learn to Influence Training with Your Mind
The mind-muscle connection can be trained. A good prerequisite for this is to understand the exercises you perform in detail. This means not only the correct technique but also understanding which muscles work when and how. Which muscle is primarily involved, which other muscles work secondarily? When does each muscle tense and relax?
Once that’s clear, the focus during exercise execution should be on the movement itself. Those who are easily distracted might want to practice mental training at home rather than in the gym. During the exercise, try to consciously focus your thoughts on the muscles being worked. You might notice that they are hardly noticeable. Then it helps to consciously tense them, refine the technique, or work with more repetitions or heavier weights.
A tip: Trainers (whether in the studio or in online courses) can help by reminding you during exercise execution which muscles should be tense and what to pay attention to in the technique. Concentrating on the voice can paradoxically help improve focus on the movement and muscles. This conclusion was also reached by a study published in 2019.6
Is the Mind-Muscle Connection Only Important for Strength Athletes?
The training method is indeed well-researched scientifically, especially in strength sports. But it seems likely that endurance athletes, such as runners, could also benefit if their mind and body are in sync during sports. Increased muscle activation could, for example, impact running technique and thus speed. A similar principle could apply to swimming. In other sports, such as those where choreography and the way movements are executed play a role (dance, martial arts), the mind-muscle connection might help internalize movement sequences and techniques faster if both mental and physical training are mastered equally. A good mind-body connection could also help push past certain physical limits–like overcoming the inner resistance. However, there is little or no scientific evidence for this.