ACTIVITY 5
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 refer to the generation of force or movement with regard to muscle length. Some of the muscles with this type of contractions are as follows:
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Gluteus maximus
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Hamstrings
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Quadriceps
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Adductor magnus
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Rectus femoris
Meanwhile, isometric contractions generate tension without change in muscle length (remains the same). Five examples of these muscles include the following:
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Rectus abdominis
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Trapezius
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Deltoid
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Latissimus dorsi
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Pectoralis major