From time to time, you may need to build muscle mass. 'Bulking up' can be a little frowned. Yet, the cross sectional size of your muscle fibres does contribute to strength. The thicker your muscle fibres are, the stronger you are more likely to be. Not the only factor, although one of them. Building muscle when first starting strength training can prepare you for the later demands of a program. If you want to move up a weight class in Jiu Jitsu, adding muscle is one way to do this. Although, what's the best way to do this? Should you be using drop sets, or another method? Let's discuss.