So if you are a professional trainer I suggest you use them to enhance the performance and confidence of your athletes. In order to show you the effects of the ARD on the force-velocity relationship I wanted to compare some deadlifts with and without chains. I decided to make one loop, so when I’m on the top of the lift they are almost completely raised from the floor.Pay attention on the set up of your chains because it will vary the load on the barbell during the lift: put the chains out of the barbell and be sure they won’t go under the plates when you lay down the barbell.From the first attempt it was clear that I was wrong.My perception of the load during the lift was completely different. I discovered that Accommodating Resistance Devices, like chains and elastic bands, are largely used in powerlifting and sport performance facilities.When you feel strong at the lockout of the bench press, this only deceives you.You have optimal leverage but the muscles actually are weaker.The basis for a lot of common powerlifting practices are questionable though, which includes accommodating resistance.
On the other hand we have a higher Index of Explosive Strength (0,229 G/s vs 0,132 G/s) and Time Under Tension (2,22s vs 1,02s).It means that Accommodating Resistance Training can lead to faster and more powerful firing of the motor units, which will then lead to an increase in overall strength.Powerlifting-style training has spread throughout the hardcore in the general fitness realm.You do not want the resistance to match with your leverage, you instead want the weight to match muscle strength, which peaks at the midpoint of a good exercise. The length-tension relationship tells us that muscles form the most tension at the midpoint of any exercise.The components within your muscles that bind to create tension overlap best here.