zig
0

Notifications

  • You're all caught up!

What Are the Main Muscles in the Buttocks & Thighs?

by
author image Timothy Owens
Timothy Owens has been in the fitness and wellness industry since 2000. He holds a Master of Arts in physical education: sport and exercise science from the University of North Carolina at Pembroke and is a certified personal trainer through the National Council on Strength & Fitness. Owens worked as a exercise physiologist and personal trainer for eight years until moving into recreation administration and management.
What Are the Main Muscles in the Buttocks & Thighs?
Starting block on track Photo Credit Berc/iStock/Getty Images

As a fitness enthusiast, your butt and legs are either your best commodity or your worst. While you may want a firmer butt or to avoid the dreaded chicken legs, failing to understand muscular movement may slow progress toward your goal. Understanding the muscles within your legs and bum leads to understanding why they are trained in specific ways.

Buttocks

What Are the Main Muscles in the Buttocks & Thighs?
Woman in mediation pose Photo Credit m-imagephotography/iStock/Getty Images

Of the three buttocks muscles, the gluteus maximus is the largest, as well as the largest muscle in human anatomy. The gluteus maximus originates on the ilium – the largest bone of the pelvis -- and inserts on the femur with primary responsibility for hip extension and hip external rotation.

Your two smaller buttocks muscles are the gluteus medius and gluteus minimus. While they have the same origin and insertion points, they have different movement responsibilities. Abduction, transverse abduction and internal rotation are performed by the medius and minimus.

Three exercises that train the buttocks are squats, dumbbell lunges, and step-ups.

You Might Also Like

Quadriceps

What Are the Main Muscles in the Buttocks & Thighs?
Man in lunge pose Photo Credit Corina Acosta/iStock/Getty Images

The front of your thighs consists of the four muscles of the quadriceps. The rectus femoris, largest of the four, extends the knee and flexes the hips. It originates on the front and lower portion of the ilium and inserts on the tibia bone of the lower leg. The three remaining muscles -- vastus lateralis, vastus intermedius, vastus medialis -- deal only with the extension of the knee. They all originate on the thigh bone, the femur,and insert on the tibia bone. While exercises for the buttocks also train the quadriceps, a few focused exercises are the leg extension and 45 degree leg press.

Hamstrings

What Are the Main Muscles in the Buttocks & Thighs?
Woman exercising at gym Photo Credit prudkov/iStock/Getty Images

The hamstrings consist of four muscles, the two largest being the semitendinosus and the long head of the biceps femoris. These two muscles originate on the lower part of the hip bone and insert on the tibia -- the larger of the two bones in your lower leg. They are responsible for the flexion of your knee and the extension of your hips. Training the hamstrings require exercises such as the stiff-legged deadlift, leg curl and hyperextension.

Related Searches

LiveStrong Calorie Tracker
THE LIVESTRONG.COM MyPlate Nutrition, Workouts & Tips
GOAL
  • Gain 2 pounds per week
  • Gain 1.5 pounds per week
  • Gain 1 pound per week
  • Gain 0.5 pound per week
  • Maintain my current weight
  • Lose 0.5 pound per week
  • Lose 1 pound per week
  • Lose 1.5 pounds per week
  • Lose 2 pounds per week
GENDER
  • Female
  • Male
lbs.
ft. in.

References

Demand Media