When it comes to designing an effective arm workout, the dilemma often revolves around the choice between lifting heavier weights or increasing the number of sets. This question is particularly relevant if you’re aiming to enhance muscle growth and strength in your biceps and triceps.
The information for this article is largely based on a video shared by Ryan Humiston. His YouTube channel has become one of the fastest-growing fitness channels out there with close to 2 million subscribers and more than 230 million video views.
Here’s an in-depth look at how you can strategize your workout for optimal arm development.
Maximizing Your Arm Workout: Weight vs. Sets
So, you want to know how maximising your arm workout is in practice? Weights or sets? Which one to increase, how much, when, or why? Here are the facts presented by Humiston.
- Understanding the Mechanics of Muscle Growth: Muscle hypertrophy, or growth, primarily occurs when you expose your muscles to stress that causes micro-tears in the muscle fibers. These tears then repair and adapt, resulting in muscle growth. Both lifting heavier weights and increasing the number of sets can contribute to this process, but they do so in different ways.
- The Case for Heavier Weights: Lifting heavier weights typically involves performing fewer repetitions, which can lead to significant strength gains. When you lift close to your maximum capacity, you recruit more muscle fibers, particularly the fast-twitch fibers, which have the greatest potential for size increases. However, the risk of injury can also increase with heavier weights, and the stress on your joints and connective tissues can be significant.
- The Case for More Sets: Performing more sets with lighter weights can also be very effective, especially for promoting muscle endurance and sustained hypertrophy. This method allows for increased muscle time under tension, a critical factor in muscle growth. It also tends to be safer and less taxing on the joints, which makes it a sustainable choice for long-term training.

Best Biceps and Triceps Workout For Bigger Arms
Practical Tips for Your Arm Workouts
- Balance Both Approaches: Consider incorporating both strategies into your routine. For instance, start your workout with heavy sets to tap into the strength-building benefits, and finish with higher-repetition sets to fatigue the muscles thoroughly and stimulate hypertrophy.
- Focus on Form: Whether lifting heavy or performing more sets, maintaining proper form is crucial to prevent injuries and ensure that the target muscles are being effectively worked. Avoid the temptation to lift heavier at the expense of correct technique.
- Gradually Increase Intensity: Progressive overload is key to continued progress. Gradually increase the weight and the number of sets over time to challenge your muscles and force them to adapt.
- Prioritize Recovery: Adequate rest and recovery are just as important as the workout itself. Ensure you’re allowing enough recovery time between sessions that target the same muscle groups to permit proper muscle repair and growth.
- Monitor Your Progress and Adjust Accordingly: Keep track of your workouts, including the weights lifted and the number of sets and reps completed. This data will help you adjust your program based on your progress and any plateaus you may encounter.
The choice between lifting heavier weights and performing more sets doesn’t have to be an either/or scenario. A well-rounded arm workout program that incorporates both elements, adapted to your personal fitness goals and capabilities, can lead to significant improvements in both strength and muscle size. Always listen to your body and adjust your training regimen to align with your specific fitness goals and physical condition.
For a fuller explanation with the acid typical humour from Ryan Humiston, you can watch the video below about maximising your arm workout and the intricacies between weight vs reps to build muscle.
Read Also: The Most Effective Arm Workout
Building stronger arm muscles through targeted workouts offers a range of benefits that extend beyond the aesthetic appeal of well-defined biceps and triceps. One of the primary advantages is enhanced functional strength, which translates into better performance of daily activities. Strong arms enable you to lift, carry, and move objects more efficiently, reducing the risk of strain when performing tasks like lifting groceries, carrying children, or engaging in manual work. Additionally, having robust arm muscles helps in various sports and physical activities, whether you’re throwing a ball, climbing, or paddling, making them crucial for both everyday and athletic performance.
From a health perspective, incorporating arm exercises into your workout regime can contribute to better overall body composition. Increased muscle mass accelerates your metabolism, potentially aiding in weight management and fat loss. This metabolic boost occurs because muscle tissue burns more calories at rest compared to fat tissue, meaning you expend more energy throughout the day, even in non-active periods. As a result, developing your arm muscles can be a beneficial component of a holistic approach to maintaining a healthy weight and improving metabolic health.

Improving your arm workout routine also enhances joint health. Strengthening the muscles around critical joints in the arm, like the elbows and shoulders, provides better support and can decrease the likelihood of injuries. Regular and well-structured arm training helps maintain and even improve joint flexibility and stability. This preventative aspect is particularly important as you age or if you’re involved in repetitive motion activities that can put strain on your arms and joints, thereby helping you maintain a higher quality of life with fewer physical limitations.
Lastly, the psychological benefits associated with arm training should not be overlooked. Completing a rigorous arm workout can boost self-esteem and confidence, as physical strength often promotes a sense of inner strength and accomplishment. The progress visible from consistent training, such as increased lift capacity or the visual appearance of toned arms, can also lead to increased motivation and a more positive body image. These mental health benefits contribute to a more determined and happier mindset, which is crucial for overall well-being and the pursuit of fitness goals.