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A, concentration of insulin-like growth factor I (IGF-I) in serum (μg l−1) in LE-NOC (n = 12) and HE-OC (n = 11). B, IGF-I in interstitial tissue fluid surrounding the patellar tendon in LE-NOC (n = 11) and HE-OC (n = 7) collected as paired samples from the resting leg and the contralateral leg which had performed exercise the previous day. *P < 0.05; **P < 0.01: IGF-I higher in LE-NOC than HE-OC.
