Bradley A Ruple, Madison L Mattingly, Joshua S Godwin, Mason C McIntosh, Nicholas J Kontos, Anthony Agyin-Birikorang, J Max Michel, Daniel L Plotkin, Shao-Yung Chen, Tim N Ziegenfuss, Andrew D Fruge, L Bruce Gladden, Austin T Robinson, C Brooks Mobley, Abigail L Mackey, Michael D Roberts
Denervated myofibers and senescent cells are hallmarks of skeletal muscle aging. However, sparse research has examined how resistance training affects these outcomes. We investigated the effects of unilateral leg extensor resistance training (2 days/week for 8 weeks) on denervated myofibers, senescent cells, and associated protein markers in apparently healthy middle-aged participants (MA, 55 ± 8 years old, 17 females, 9 males). We obtained dual-leg vastus lateralis (VL) muscle cross-sectional area (mCSA), VL biopsies, and strength assessments before and after training...
April 30, 2024: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology