The dark side of pecs: Why training only your 'mirror muscles' is a bad idea

In the Nine feature, “The dark side of pecs: Why training only your ‘mirror muscles’ is a bad idea”, readers are cautioned against overtraining chest and arm muscles at the expense of the rest of the body. Ricardo Riskalla, master personal trainer and founder of RawFit, provides expert insight into the risks of muscle imbalance caused by focusing too heavily on visible upper-body muscles.

Ricardo explains that repeatedly training only the chest and arms — particularly with heavy weights and minimal variation — can lead to postural issues, injuries, and a hunched appearance. He emphasises the importance of balance across all muscle groups, recommending that people prioritise back and core exercises alongside chest work to maintain symmetry and strength. Ricardo also stresses the necessity of rest days for recovery and long-term results, advising that the body needs variation and proper rest to perform and adapt effectively. His guidance offers a holistic reminder that aesthetic goals should never outweigh functional fitness and health.