[Retracted] Monitoring of Sports Health Indicators Based on Wearable Nanobiosensors

Table 6

Proportion of various venues suitable for the elderly to exercise (n = 40).

Type	Number	Percentage (%)
Martial arts healthcare	31	16.85
Running class	31	16.85
Dance gymnastics	26	14.13
Chess and cards	42	22.83
Ball	20	10.87
Water	2	1.09
Other venues	32	17.39