///// PRIMARY MUSCLES WORKED

QUADS
- Rectus femoris
- Vastus intermedius
- Vastus lateralis
- Vastus medialis

///// SECONDARY MUSCLES WORKED

BACK
- Iliocostalis thoracis
- Spinalis thoracis

GLUTES
- Gluteus maximus
- Gluteus medius
- Gluteus minimus

HAMSTRINGS
- Biceps femoris, long head
- Biceps femoris, short head
- Semimembranosus
- Semitendinosus