1
vote
3answers
122 views

Dumbbell lifts vs Smith Machine lifts

The gym that I am a member of does not have any barbell free weight equipment, only dumbbells and the bar in the Smith machine (as well as other equipment such as cable machines, machines for specific ...
6
votes
1answer
359 views

Dumbbells and barbells: Where is the center of gravity?

(Assume we're near the Earth's surface, so that center and gravity and center of mass are basically the same.) I've heard that the "center of gravity is not fixed when there are two pivot points as ...
1
vote
1answer
172 views

Are there Common Dumbbell and Barbell Diameters?

I have some basic weights, dumbbells and a barbell. I've always assumed there were 30mm and 50mm diameters for weights, but when I measured my dumbbells they appear to be 25mm and my barbell is 30mm. ...
10
votes
2answers
500 views

Are there different muscular adaptations between barbell and dumbbell use?

Most exercises can be performed with similar weight and form using either a barbell or a pair of dumbells. I have heard that as people begin to lift heavier weights it becomes more difficult to ...
4
votes
2answers
372 views

What are the ball bearings in dumbbells and barbells for?

Well the question title pretty much says it. While browsing the web for dumbbells I stumbled over the supposedly cheaper 30mm bars and the 50mm bars that all seem to be ball beared. What is the ...
2
votes
2answers
420 views

Seeking a barbell/dumbbell workout for a very small room

Here's my situation... I have a bench, a barbell with 300 pounds of plates, and dumbbells up to 100 pounds (each) in a very small room. I am 5'9" tall and weigh 159 pounds. My bench is very close to ...
5
votes
4answers
14k views

How to do deadlifts with dumbbells?

I dont have access to a barbell, yet i still want to try and do deadlifts, so i was wondering if anybody knows how to explain to me the proper technique, or maybe even refer me to an article or video ...
11
votes
4answers
38k views

Are squats with dumbbells as effective as squats with barbells?

I was wondering, if I were to use the same amount of weight with dumbbells as I would with a barbell while doing a squat, will I get the same benefits as I would using a barbell? Now I understand ...
1
vote
3answers
2k views

What are good dumbbells or barbells for P90X?

I'm looking to buy a barbell/dumbbell set to start doing P90X again. I came across the Bowflex and the Powerblock adjustable sets, but they just seem so freaking expensive ($300 to start for each). ...