请对该段文本做整理修改，使其语意不变传且整体结构更清晰更明确更简洁。

Original stretching routine included a series of progressively more challenging stretches, aimed at enhancing flexibility. The involvement of an instructor facilitated personal interaction, which proved beneficial according to student feedback. Concurrently, the incorporation of music encouraged participants to engage in the exercises with enhanced mood and concentration. The use of visual aids also aided significantly in understanding the stretches. Overall, these elements collectively contributed to the effectiveness of the stretching program.
user
The original stretching routine featured progressively challenging stretches to boost flexibility. An instructor's involvement promoted personal interaction, benefitting students based on feedback. Music enhanced mood and focus during exercises, while visual aids improved understanding of the stretches. Collectively, these elements ensured the program's effectiveness.
assistant