The Sinkram Courses are very interesting. I was thinking about what Alexander asked about building muscle and strength using VRT(DVR), Self Resistance and Isometrics. Now I know the course's name is, " Sinkram Super Speed System- Giant Chest & Giant Arms". But does that mean the exercises in both courses only hit the Chest & Arms? No, there is exercises that hit the chest, back, shoulders, biceps, triceps, neck and wrist.

Look I'm not able to claim that any of this stuff can build huge muscle. I'm just an average guy that enjoys exercise. I have used these courses to form a workout without weights. Will it make You look better? Yes, if You put effort into them and You form Your nutrition according to Your goals. Will You get stronger? Yes. Everytime I stopped doing these self resistance exercises and started again I got sore. So You do have to be careful with the tension at first, especially with the towel exercises.

Most of the exercises are recommended to do for 15 reps per side in the courses. I personally like higher reps with self resistance. My feeling with this kind of exercise is You need volume but everyone is differant. Has anyone tried these exercises and how did You form Your workouts with them? I'm actually just curious. The courses are up top in the PDF files.

https://docs.wixstatic.com/ugd/c34828_7b3214f09bff41e8bac0f19e85b5ee41.pdf

https://docs.wixstatic.com/ugd/c34828_520180c7024c46e687b3d296040bd6c1.pdf