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Original Article

Total training load may explain similar strength gains and muscle hypertrophy seen in aged rats submitted to resistance training and anabolic steroids

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Pages 65-76 | Received 20 Apr 2017, Accepted 07 Aug 2017, Published online: 17 Aug 2017

Figures & data

Figure 1. Sample of myofibers from the soleus muscle of Wistar rats histochemically stained for myosin ATPase following acidic preincubation at pH 4.6. Darker myofibers are type I and lighter type II. Original magnification of 400×.

Figure 1. Sample of myofibers from the soleus muscle of Wistar rats histochemically stained for myosin ATPase following acidic preincubation at pH 4.6. Darker myofibers are type I and lighter type II. Original magnification of 400×.

Figure 2. Experimentation period scene.

Figure 2. Experimentation period scene.

Figure 3. Testicles weight (g) from groups 20 months-old control (C), 24 months-old control (CF), anabolic steroid control (CAS), resistance-trained (RT), and resistance trained plus anabolic steroid therapy (RTA). arepresents difference from group C (p < 0.05). brepresents difference from group CF (p < 0.05). drepresents difference from group RT (p < 0.05).

Figure 3. Testicles weight (g) from groups 20 months-old control (C), 24 months-old control (CF), anabolic steroid control (CAS), resistance-trained (RT), and resistance trained plus anabolic steroid therapy (RTA). arepresents difference from group C (p < 0.05). brepresents difference from group CF (p < 0.05). drepresents difference from group RT (p < 0.05).

Figure 4. Maximum load carrying test (MLCT) data of testing sessions 1 (T1) and 2 (T2) from groups initial control (C), final control (CF), control with anabolic steroid (CAS), resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

Figure 4. Maximum load carrying test (MLCT) data of testing sessions 1 (T1) and 2 (T2) from groups initial control (C), final control (CF), control with anabolic steroid (CAS), resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

Table 1. Maximum load carrying test (MLCT) data before (PRE) and after (POST) 15 weeks of experimentation from groups initial control (C), final control (CF), control with anabolic steroid (CAS), resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

Figure 5. Description of the mean absolute (g) and relative load (% BW) initial and final of the trained groups (RT) and trained with anabolic steroid (RTA).

Figure 5. Description of the mean absolute (g) and relative load (% BW) initial and final of the trained groups (RT) and trained with anabolic steroid (RTA).

Figure 6. Total training load and average training load per session evolution during 15 weeks of training on groups resistance trained (A and B) and resistance training with anabolic steroids (C and D).

Figure 6. Total training load and average training load per session evolution during 15 weeks of training on groups resistance trained (A and B) and resistance training with anabolic steroids (C and D).

Table 2. Effects of 15 weeks of experimentation on the average total volume (g), total climbing volume (g), relative total volume (%), relative total climbing volume (%) and mean climbing volume (n°) from groups resistance-trained (RT), and trained with anabolic steroid (RTA).

Figure 7. Total load and average load per session after 15 weeks of experimentation for groups resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

Figure 7. Total load and average load per session after 15 weeks of experimentation for groups resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

Table 3. Morphometry of the soleus and plantaris muscle of aged Wistar rats after 15 weeks of experimentation in the initial control (C), final control (CF), control with anabolic steroid (CAS), resistance-trained (RT) and resistance trained with anabolic steroid (RTA).

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