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Several Summer Muscle Building Fitness Plans
![[Sit-ups] mainly exercises the upper abdominal muscles](/uploadfile/2025/0118/20250118102418376.jpg)
[Sit-ups] mainly exercises the upper abdominal muscles
Fifteen training methods and recommended plans (DOC document download)

Parallel pull-ups - Illustration of parallel pull-ups with both arms

The most effective home slimming and fitness plan

What is the use of the stair machine in the gym? What are its effects?

Good abdominal muscle training moves: supine T-bar twist!
