shadowninja
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The good thing about free-weights is that they train the supporting muscles.
The good thing about free-weights is that they train the supporting muscles.
lifting 10 reps of 20KG in 20 seconds, is no more useful than lifting 5 reps of 10kg , in 20 seconds IMO. Its also about working smarter, and not harder
I used to be a competitive sportsman and the key issue when using weights is "workload" which is (weight x reps) /Time. Based on this the workload in your first example = 10 and in the second example = 2.5 so I would have to say that in the first case it is significantly better than the second.
Paul
In the real world, when a muscle does work to lift a box, you're not just using the biceps. You're using muscles in the hand, the forearm, the shoulder, the core muscles, the legs to greater or lesser degrees. When you use a weight machine, it isolates the biceps to a good degree. This means that you can build bigger biceps but they're useless without the supporting muscles, and using it to its extreme is likely to cause you injuries.
As an example, do shoulder presses with free weights and with a machine. With a machine you can easily stand/sit such that the rest of your body can relax. You can even have your hand relaxed. Now do it with a pair of dumbells (or even, just one dumbell). Your back tenses, your arm tenses, you grip firmly, your sides tense.
I only like the machines for ab pull-downs and lats because I don't have access to a chin-up bar. All my work is directly against gravity.
Maybe.
I'm just talking about the feel of perceived strain on the body. i.e. slower repetitions with a pause and less weight can achieve the same feeling of stress on the muscles as a much heavier weight and faster repetitions.
Also, with weight training, technique is important, and breathing/oxygen intake is important for technique and improvement in fitness. It is difficult to maintain the correct technique when doing quick reps. and when lifting/struggling with a heavy weight, not only is it difficult to maintain the correct technique, as your instinct is to rush and get it over and done with ASAP, you are more inclined not to breathe correctly as a result.
For me, with the low weight dumbells, and the slower reps, I feel that i am placing the same strain on my muscles. When doing 12 reps, i may pause for a few breaths after 8 reps, as i know that notdoing so, will lead to me comprimising technique & breathing.
If looking how much your muscles have been pumped during the workouts is anything to go by, i have the feeling that my new 8-12kg dumbell routine is doing more for me - while been more fun, less stressful/lighter, lighter in weight etc.
Oh, and drugs help too.
UTB
Also, depends on your goals. Strength? Bulk?
In any case, I do a fair bit of indoor climbing and noticed when I was going regularly, my forearms were almost as big as my biceps. This isn't through reps but squeezing and holding to the point of fatigue. So my grip strength and bulk improved not by moving through the motion under constant pressure but by having 100% required strength at full contraction. Interesting.
Someone recently told me a story of someone they knew of who started on steroids in the late 80's maybe. 6 months later, they had cancer springing up in different bodily locations
Is it worth shrinking vital male parts, etc.
But I trained with a chap who was obsessed by it, yet hit a wall. I couldn't describe how seriously he took it or how hard he trained, but it was phenomenal. Eventually he broke and found the needle, and my how he grew.
He spent the next year crapping himself about every ache, pain and runny nose he had.
UTB
I've been told i float like a butterfly and sting like a bee!