Answer:
Rotator cuff, trunk flexors, and hip flexors.
Explanation:
The results show that she needs to improve the flexibility in her shoulder, hip, and spine. In the case of her shoulder, the muscles that should be emphasized to improve flexibility are the ones that form the rotator cuff, which are the supraspinatus muscle, the infraspinatus muscle, the teres minor muscle, and the subscapularis muscle.
To improve her spine's flexibility she needs to work on her trunk flexors muscles. Finally, to improve the hip flexibility she needs to work on the rectus femoris, iliacus, psoas, iliocapsularis, and sartorius muscles, which are the main hip flexors.