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. 2013 Dec 24;69(12):1437–1447. doi: 10.1093/gerona/glt204

Figure 5.

Figure 5.

Changes in type-I single muscle fiber–specific force, power, and cross-sectional area (CSA), with resistance training (RT), and relationships with troponin T (TNNT1) alternative splicing (AS) forms. Both single muscle fiber–specific force (n = 6) (A) and power (n = 5) (B), but not CSA (C), increased with RT. Single muscle slow fiber force (pre-RT, r = −.240, .0754, and .291; post-RT, r = .695, −.851, and −.172 for AS1, AS2, and AS3, respectively) (D and E) and power (pre-RT, r = −.819, .520, and −.107; post-RT, r = .481, −.556, and −.306 for AS1, AS2, and AS3, respectively) (F and G) correlation with abundance of TNNT1 AS1-2 after RT (E and G). AS1: red, AS2: green, AS3: black.