In isotonic contractions, the tension in the muscle remains constant while the muscle changes in length. Examples of this include:
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Quadriceps
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Biceps brachii
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Rectus femoris
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Gastrocnemius
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Gluteus maximus
On the other hand, isometric contractions do not result in body movement and generate force without changing the length of the muscle. Examples of this include:
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Pectoralis major
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Rectus abdominis
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Latissimus dorsi
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Deltoid
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Trapezius