The best replacement for muscles is human muscles.

The best alternatives to muscles are rated as following:
★★★★★  human muscles
★★★★  clams
★★★★  short muscles
★★★★  slow twitch muscles
★★★  tendons
★★  height
★★  muscles
★★  soft muscles
★★  bones
★  ligaments
★  bulking muscles
★  stretching
★  small muscles
★  fast twitch muscles
★  imports
★  phasic muscles
★  skeletal muscles
★  frown
★  frowning muscles
★  cold muscles
★  lean muscles
★  bulk muscles
★  building muscles
  body
  no muscles
  oysters
  movements
  pulled muscles
  cardiac muscles
  bulky muscles
  organs
  involuntary muscles

Your alternative for muscles is not listed? Suggest!
Speaking about muscles, one probably shouldn't forget about weights.

Other search terms related to muscles and their ratings are:
★★★★★ weights
★★★★ working out
★★ gap junctions
★★ lifting
★ workout
★ bones
★ origin insertion and action
★ lifting weights
going to gym
You have in mind a companion for muscles and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of muscles in all years. Click on graph for more.
muscles
human muscles
clams