Recommended Rep Range by Muscle Group

Hamstrings	Low Reps	6 - 10
Quads	High Reps	20 – 30
Pecs	High Reps	20 - 30
Triceps	Low Reps	6 - 10
Delts	High Reps	20 – 30
Mid Upper Back	Low Reps	6 - 10
Traps	High Reps	15 - 20
Biceps	Med Reps	8 - 12

@jnglvan choose a weight you can get for 12 pic.twitter.com/ZgrPnFYfG5

— Justin Kamb (@jkamb90) March 30, 2016

Testosterone Therapy - Royal Men's Medical Center 

Great Service and Price - Tell them Michael Henry referred you. https://t.co/0HQkC961lN pic.twitter.com/jFdMxBzhmj

— #HelpYouGetGAINS (@helpYOUgetGAINS) October 14, 2017

#DIY #Kettlebells for swings pic.twitter.com/ta6F6jwkC3#helpYOUgetGAINS

— #HelpYouGetGAINS (@helpYOUgetGAINS) October 15, 2017

Further Reading:

Understanding Muscle Fiber Types. - Bodybuilding.com

https://www.bodybuilding.com/fun/kelly13.htm

Mar 8, 2007 - There Are Three Primary Muscle Fiber Types In Humans: ... chain isoforms I, IIa and IIxcorresponding with muscle fiber types I, IIA, and IIB. ... meaning they don't contract as fast or contract with the same level of force as type II ...

The Role of Fiber Types in Muscle Hypertrophy - Lookgreatnaked.com

www.lookgreatnaked.com/.../the_role_of_fiber_types_in_muscle_hypertrophy.pdf

by BJ Schoenfeld - ‎Related articles

ACCEPTED FOR PUBLICATION. The Role of Fiber Types in Muscle Hypertrophy: Implications for Loading Strategies. Dan Ogborn. Brad J. Schoenfeld ...