Table 1. Demographic data of the participants.

	Diving experts (n = 12)	Controls (n = 12)
Age (year)★	14.58 ± 1.68	14.92 ± 1.38
Education (year)★	7.75 ± 1.82	7.92 ± 1.38
Average practice time per day (hour)	6.54 ± 0.38	N/A
Duration of practice (year)	10.12 ± 0.86	N/A
Age of commencement (year)	5.33 ± 0.98	N/A

Note: ^★Indicates no significant between-group difference using two-sample t-test (p > 0.05).

N/A = not available.