This is Hidilyn Diaz. She won the Philippines’ first ever Olympic gold medal in the clean and jerk weightlifting category for the 55-kg weight division during the 2020 Tokyo Olympics. Give 5 examples of muscles with isotonic contractions and 5 examples of muscles with isometric contractions during the activity in the gif below.
Isotonic contractions – Tension in muscle stays constant, can either be concentric or eccentric.
Muscles with Isometric contractions
Biceps brachii | Gluteus maximus | Hamstring muscles | Plantaris | Trapezius
Isometric contractions – Tension is produced in the muscle without a change in the angle of a skeletal joint.
Muscles with Isometric contractions
Deltoids | Gastrocnemius | Latissimus dorsi | Pectoralis major | Rectus abdominis