I've been doing the Russian twists everyday for like 1 1/3 years and I keep losing weight!!:) the pounds have been shedding off, but it takes time. Thanks so so much for introducing me to this!
P.S. If you also want to lose weight do the Russian twists until your tummy is on fire EVERY night and cut out sodas, then gradually cut out other unhealthy things. It works so well! Good luck to whoever reads this!:)