How do two 20 pound dumbbells compare to a 40 pound barbell for upper body exercises? Are they equivalent, better or worse? - Quora

Answer (1 of 6): Simply put, the main difference here would be “accountability”. With barbell training the assumption is that both arms are providing equal force output to move the weight (20lbs each.) However, there is no way to KNOW that your body is working symmetrically to move the 40lb barbe

How to increase your dumbbell weight at home without a gym

I have been lifting weights at home with dumbbells since the gyms

When doing bench press, I felt a sharp pain in my left shoulder, even with plenty of warm-up sets and good form. Should I substitute the bench press? - Quora

What are some dumbbell exercises that can replace barbell squats

Is a Smith machine better or worse than free weights for bench

Which dumbbell exercises can replace barbell exercises and still give you performance advantages? - Quora

Can I go from 12 to 20 lb dumbbells if I've been lifting 12 lbs

weightlifting - Barbell says 20kg on each side. Am I lifting 20 or 40kg? - Physical Fitness Stack Exchange

Is lifting weights every day good? - Quora

What is the best exercise for your body? - Quora

I can dumbbell bench press 42.5 kg dumbbells for 15 reps at 115 kg

How are dumbbells weighed ? - Quora

How much weight should you be able to squat if you can do 10 reps

Will you see a huge difference from lifting 25 dumbbells to lifting 40 pounds? Will you get a lot stronger? - Quora