Shape:

• Hex Dumbbell: Features six flat sides, designed to prevent rolling and provide stability.
• Round Dumbbell: Has a circular design, which may roll more easily.

Roll Prevention:

• Hex Dumbbell: Less prone to rolling due to its hexagonal shape, offering stability during certain exercises.
• Round Dumbbell: More likely to roll, requiring more attention to maintain stability.

Storage:

• Hex Dumbbell: Stacks more easily and takes up less space, making it suitable for home or compact workout areas.
• Round Dumbbell: Due to their shape, they might require more space for storage, especially in larger quantities.

Grip Comfort:

• Hex Dumbbell: The handle typically has six flat surfaces, potentially providing a better grip, especially with heavier weights.
• Round Dumbbell: The handle is rounded, which some individuals may find more comfortable.

Price:

• Hex Dumbbell: Prices may vary, but hex dumbbells of the same weight are often relatively more affordable.
• Round Dumbbell: Depending on the specific model and materials, round dumbbells might be slightly more expensive at times.

Ultimately, the choice between hex dumbbells and round dumbbells depends on personal preferences, space constraints, workout scenarios, and budget considerations.

How to choose the weight of dumbbells?

The weight selection of dumbbells depends on individual health, fitness level, exercise goals, and experience. Here are some suggestions to help you choose the appropriate dumbbell weight:

• Starting Weight: If you are a beginner, it is advisable to start with lighter dumbbells to ensure proper execution of exercises. Typically, 2.5kg or 5kg is a reasonable starting point. The two dumbbell packages, 2.5kg-15kg or 5kg-17.5kg, are suitable for beginners.
• Gradual Increase: Gradually increase the weight of the dumbbells to enhance the challenge and build strength. Generally, adding 2.5kg at a time is a reasonable progression.
• Adapt to Exercise Plan: Choose the weight according to your training goals. For endurance and toning, opt for relatively lighter weights with more repetitions. For strength and muscle mass, select heavier weights with fewer repetitions.
• Feel the Challenge: Choose a weight that challenges you in the last few repetitions but allows you to maintain proper form. If it feels too light, you may not get enough stimulation, while if it's too heavy, it may lead to improper form and an increased risk of injury.
• Personalization: Consider individual differences. Everyone has different fitness levels and strengths, so choosing a dumbbell weight that suits your own capabilities is crucial.

Always prioritize safety when selecting dumbbell weights. If you're unsure about the appropriate weight for you, it's recommended to consult with a professional fitness trainer or healthcare professional for advice.

What exercises with dumbbells target which muscle groups, and what supporting equipment is needed?

Dumbbells are versatile fitness equipment that can be used for various exercise movements to strengthen different muscle groups. Here are some common dumbbell exercises and the main muscle groups they target:

• Dumbbell Squat: Quadriceps, Hamstrings, Glutes, Core Muscles.
• Dumbbell Deadlift: Lower Back, Glutes, Posterior Leg Muscles.
• Dumbbell Bench Press: Chest Muscles, Triceps, Front Deltoids.
• Dumbbell Fly: Chest Muscles.
• Dumbbell Bicep Curl: Biceps.
• Dumbbell Shoulder Press: Shoulders, Triceps.
• Dumbbell Bent Over Row: Back, Shoulders, Biceps.
• Dumbbell Lateral Raise: Shoulders.
• Dumbbell Tricep Kickback: Triceps.
• Dumbbell Russian Twist: Obliques, Rectus Abdominis.

The required supporting equipment depends on the specific exercise, but generally, dumbbells themselves are a convenient and effective tool. Sometimes, you may need a bench for adjusting sitting positions or providing support to ensure correct execution. Additionally, for some advanced movements like deadlifts, a stable floor or a support platform might be needed. Ensure that you have mastered the correct techniques and perform dumbbell exercises in a safe environment.