by your self unlike unvoluntary muscles by sam
Yes.
Voluntary muscles are controlled by the somatic nervous system.
cerebellum
Voluntary muscles are skeletal muscles (under somatic control) and involuntary muscles involve the heart, smooth muscles and anything under autonomic control.
no smooyh muscles are involuntary
How to Strengthen Your Pelvic Muscles
What Amyotrophic Lateral Sclerosis is
Muscle Building Zottman Curls
Gain Muscle with Partial Close-grip Bench Presses