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one arm 10 pounds or two arm 20



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GREBJACK
Posts: 3,519
2/7/13 7:04 P

I feel pitiful admitting this, but I can fully exhaust my biceps with the 20 pound dumbbell. Oh well. Thanks for the responses.



TACDGB
Posts: 6,130
2/2/13 3:46 P

I got a box of dumb bell plates and bars for 25 bucks at walmart. If you want to grow muscles you need to challenge them. If you do more reps and less weight you are just doing a cardio workout. Muscle growth is about heavy weights and less reps. Tire out those muscles.



BREWMASTERBILL
SparkPoints: (31,080)
Fitness Minutes: (12,713)
Posts: 4,110
2/2/13 12:48 P

You can increase reps, but beyond 15-20 reps, you're in cardio land for the most part and strength increases aren't likely or slow to come.

To your question, the point of strength training is to increase muscle mass (preserve it). If you can lift 10 pounds today, your body has enough muscle and doesn't need to make more. The body is efficient. So continuing to lift the same weight over and over doesn't provide any stimulus for growth.

Dumbbells and plates are cheap. You can pick them up used for probably 20-25 bucks a piece. Plates used are less than a dollar a pound. Hardly seems like a king's ransom.



GREBJACK
Posts: 3,519
2/2/13 12:40 P

I do mean dumbbells. And I don't have 10 pound dumbbells or dumbbells that can be loaded with plates 'cause I'm cheap!

Now I have another question: why is it true that doing the same weight over and over isn't doing anything? Or rather, if it doesn't make a difference, why are there so many things I can do 6 or 8 times but I can't get 12? (I usually up my weight when I can I do 12 reps)



BREWMASTERBILL
SparkPoints: (31,080)
Fitness Minutes: (12,713)
Posts: 4,110
2/2/13 9:42 A

I think you mean dumbbells. And why not simply get dumbbells that can be loaded with plates? If you're using 20 pounds this week and progressing, you'll need 25 next week. Then what? Doing the same move with the same weight over and over isn't doing anything.



GREBJACK
Posts: 3,519
2/2/13 8:46 A

I don't have 10 pound dumbbells but I have 20. Am I getting essentially the same biseps workout if I curl the 20 with both arms as if I curled a 10 in each? I know it takes some of the balancing stuff out, although the way I'm doing it, it also adds a squeeze toward the center in...

Edited by: GREBJACK at: 2/2/2013 (12:41)


 
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