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Relationships between relative change in joint stiffness and that in active muscle stiffness without stretch reflex (under 250‐deg·sec−1 condition) (A), active muscle stiffness with stretch reflex (under 100‐deg·sec−1 condition) (B), passive muscle stiffness (C), tendon stiffness during ramp contraction (D), and tendon stiffness during ballistic contraction (E)
