Table 5 Total RNA content and type I and type II muscle fibre cross-sectional area (CSA) of the vastus lateralis before (PRE-T) and after (POST-T) eight weeks of either RT alone, or RT combined with either high-intensity interval training (HIT+RT) or moderate-intensity continuous training (MICT+RT).

From: Enhanced skeletal muscle ribosome biogenesis, yet attenuated mTORC1 and ribosome biogenesis-related signalling, following short-term concurrent versus single-mode resistance training

Measure

PRE-T

POST-T

Total skeletal muscle RNA (ng/mg tissue)

 RT

914 ± 202^

810 ± 134*

 HIT+RT

581 ± 176

740 ± 129

 MICT+RT

680 ± 81

818 ± 133

Type I muscle fibre CSA (µm2)

 RT

4539 ± 848

5533 ± 1913*b

 HIT+RT

6713 ± 1849

5183 ± 1413

 MICT+RT

5509 ± 2326

5228 ± 1277

Type II muscle fibre CSA (µm2)

 RT

5296 ± 1347

6456 ± 2235

 HIT+RT

6470 ± 1481

6621 ± 2018

 MICT+RT

5051 ± 1531

5728 ± 688

  1. Data presented are means ± SD. *P < 0.05 vs. PRE-T, ^P < 0.05 vs. both HIT+RT and MICT+RT at PRE-T, b = change between PRE-T and POST-T substantially greater vs. HIT+RT.
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