This was interesting. A study on "cheating" - swinging the weights, using poor form, whatever you want to call it.
They used a computer simulation of a lateral raise, adding a little momentum to the move to see what would happen. The idea seems to be that added momentum (cheating) increases the torque on the muscles.
I'm not sure what I think of this...but I can't get past the idea that this is a computer simulation.
Does cheating pay: the role of externally supplied momentum on muscular force in resistance exercise.
They used a computer simulation of a lateral raise, adding a little momentum to the move to see what would happen. The idea seems to be that added momentum (cheating) increases the torque on the muscles.
I'm not sure what I think of this...but I can't get past the idea that this is a computer simulation.
Does cheating pay: the role of externally supplied momentum on muscular force in resistance exercise.
Our work investigates the use of "external momentum" in the context of hypertrophy-oriented training. This is momentum supplied to the load (such as a dumbbell) used in an exercise by means of action of muscles not inherently involved in the exercise. We challenge the general consensus that the use of such momentum often described as "cheating" is counterproductive. We focus on the use of external momentum in the shoulder lateral raise and adopt a framework whereby exercise execution is simulated on a computer. This is achieved using a physical model of motion which is combined with anthropomorphic measurements and empirical data of muscular recruitment from previous work. The introduction of moderate momentum (producing initial angular velocities around 57.5° s(-1)) increases the torque of the target muscles even without an increase in the load used. A moderate increase in the load and the use of momentum allows the torque to be increased even further. In contrast, excessive use of momentum results in lower demands on the target muscles, while an excessive increase of the load reduces the total hypertrophy stimulus by virtue of the decreased number of repetitions which can be performed successfully and thus the dramatically shortened time under tension. Our results disprove the conventional belief that the use of external momentum necessarily reduces the overload of the target muscles. A moderate use of external momentum increases both the per-repetition peak torque and the total hypertrophy stimulus in a set.
Comments
I could probably be way better... but for now, just a basis for generating hypotheses?
What's next, you going to deny evolution or vaccinations or tell us how gold is the next coming of Christ?
Idiot.
There is no climate model that has been predictive of surface or sea temperature over a period of years. I'd hope their biomechanics model is better than climate models, too, because the system they're looking at is simpler.
Do I get the "denial" tag, too? What are your qualifications for tagging people in this way?
Shut it, don't talk about it here. Go away and discuss it on a blog about it, not one about fitness.
Seriously: noone gives a rat's ass about your ph.d. This isn't the place to clog with your attempts at looking the part of the erudite scholar. Go away and speak somewhere to someone who gives a fuck. Here? Talk fitness. FITNESS; look where you're posting. This blog's about fitness, not your pet politically charged issue.
"A lot of the time, our [relatively simple mass-transfer] models don't do a great job explaining phenomena, and even when they do, they're more or less phenomenological and they include a lot of hand-waving to explain the significance of fit parameters."
I haven't read this study in depth, but my acquaintance with studies of muscle physiology in general certainly supports his concerns about post-ex-factor reasoning and such.