To look big, focus on muscles that create width and fullness: shoulders (especially side delts) for the V-taper, lats and upper back (traps, rhomboids) for overall thickness and shirt-filling, and chest (upper pecs) for a solid, powerful look, plus arms (biceps/triceps) for definition, as these are easily visible. Developing these key areas, combined with lower body strength and low body fat, creates the most impactful "jacked" appearance.
Traps, shoulders, upper back, forearms, neck, and glutes make you look huge, especially in clothes.
Muscle Groups to Train to Look Jacked
“Most times, when guys say they want bigger arms, they're thinking about their biceps,” Carlson says. “If you want to have the look of more size on your arms, which is really what we're talking about, training your triceps contributes a lot to that look.”
So focus on building your physique in this order to achieve that ultimate frame:
The hardest muscles to grow for most people are the calves, due to their high percentage of endurance-focused Type I muscle fibers and constant use in daily activities, making them resistant to growth. Other notoriously stubborn areas include the forearms, upper chest, and rear deltoids, often because they're frequently used or neglected in workouts, requiring specific, high-intensity, and varied training to stimulate growth.
One study found that untrained (beginner) males who participated in resistance training five times a week increased their lean muscle mass an average of 2 kilograms per month, or roughly 4.4lbs (1).
For Dumbbell Bicep Curls
Average male dumbbell curl: 30–40 lbs per arm for a moderate rep range (8–12 reps). Average female dumbbell curl: 10–20 lbs per arm, depending on experience. Beginners often start with 15–20 lbs for men and 5–10 lbs for women to learn control and form.
What Muscles Grow the Fastest?
What eventually won as the most attractive muscles on a guy were the arms. Other muscles of interest in order, from most attractive to least, were the chest, back, shoulders, glutes, legs, abs, and, finally, calves, which came in dead last.
The 3-3-3 clothing rule is a simple styling method for creating many outfits from few items: choose 3 tops, 3 bottoms, and 3 shoes, which allows for 27 potential combinations (3x3x3) and reduces decision fatigue, often used for travel or building a minimalist capsule wardrobe. It's a versatile concept, sometimes expanded to include 3 layers (like jackets or cardigans) for even more looks, making dressing easier by focusing on mix-and-match versatility with core pieces.
Another little trick is to add bulk to your clothing by opting for heavier fabrics. Wool, tweed, denim, flannel and corduroy are ideal for this purpose. If it's rough to the touch, then it's a safe bet it adds bulk to your frame. You can also add thickness to one item of clothing rather than layering up.
The muscles that stand out the most and make you look bigger in a shirt are the delts. These are the front, middle and rear deltoids located around the shoulder. Having large delts gives a strong and powerful look and is the most noticeable part of a muscular physique in any shirt.
A survey of 200 women ranked arms as the most attractive muscle group, while calves finished dead last, as expected. Abs and chest didn't score as high as many hoped, with shoulders tying closely with back. The real twist was that humor and personality outperformed every muscle group for long-term attraction.
The best muscle-building foods are high in protein, contain complex carbohydrates, and provide healthy fats. Examples include lean meats and fish, nuts and seeds, beans, and whole grains. Fresh vegetables and fruits also contain vitamins, minerals, and antioxidants, which are important for muscle growth and recovery.
The hardest muscles to grow for most people are the calves, due to their high percentage of endurance-focused Type I muscle fibers and constant use in daily activities, making them resistant to growth. Other notoriously stubborn areas include the forearms, upper chest, and rear deltoids, often because they're frequently used or neglected in workouts, requiring specific, high-intensity, and varied training to stimulate growth.
What kills muscle gains most are poor recovery (lack of sleep, overtraining, high stress/cortisol), insufficient or poor-quality nutrition (not enough protein/carbs, excessive processed foods/sugar/alcohol), and inefficient training (too much cardio, bad form, focusing on isolation over compound lifts). Chronic stress elevates cortisol, which breaks down muscle, while inadequate protein, calories, and sleep directly impede repair and growth, making recovery paramount.
Research indicates that moderate-intensity running (short or long distances) and high-intensity running (sprints, hill runs, interval training, or HIIT combined with running) significantly reduce belly fat—even without dietary changes.
If you are looking to enhance power, explosiveness, and endurance, incorporating fast curls is beneficial. Conversely, if your aim is to build muscle mass, strength, and stability, slow curls could be more appropriate. It's important to note that variation is key in any workout.
Weight guideline 2: Intermediate/Advanced Male
For example, if your body weight is 80kg, the weight you should use for barbell curls should be between 32kg and 40kg.
Research suggests lifting smaller weights and doing more repetitions (or, in gym parlance, “reps”) can have a role to play – but it all depends on your goals. In short: if your goal is to build serious strength and bone density, lifting heavy is an efficient way to do it.
As every bodybuilder knows, a deep, restful sleep boosts levels of growth hormone to build strong muscle and bone and burn fat. And as every teenager should know, they won't reach their full height potential without adequate growth hormone from a full night's sleep.
Overtraining symptoms include persistent fatigue, prolonged muscle soreness, declining performance, mood changes (irritability, depression), sleep disturbances, increased resting heart rate, frequent illnesses, and loss of appetite, signaling your body isn't recovering from intense training, often requiring reduced activity and rest for recovery.
Bloating, or swelling due to a buildup of fluid in the tissues can cause weight gain. This may be due to menstruation, heart or kidney failure, preeclampsia, or medicines you take. A rapid weight gain may be a sign of dangerous fluid retention. If you quit smoking, you might gain weight.