Figure 4

(A) Mechanical load of tendons from unloaded and loaded limbs at the inflection point by age group. (B) Mechanical load of tendons from unloaded and loaded limbs at the failure point by age group. (C) Normalized mechanical load for old and young tendons at the inflection point. Each loaded tendon is normalized to its unloaded control. (D) Normalized mechanical load for old and young tendons at the failure point. Each loaded tendon is normalized to its unloaded control. Data is depicted as mean values ± standard error. Different letters denote significance at the 0.05 level.