yeah, you can do the same with any light weight. I think the main difference here is the weight and length of the barbell - it's not a 45lb olympic barbell. However, you can buy any DP weight set and get a light barbell and just add light weights on it. BodyPump and other group fitness exercise variations have been doing this for years. it's basically just high rep, light weight lifting, donw in a circuit type fashion.
I thought it was hilarious that the site has cardio kettlebells too...
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