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2×2×2 factorial design of the eight balance tasks in this study.
| Feet position | Firm Surface | Foam | ||
|---|---|---|---|---|
| Eyes open | Eyes closed | Eyes open | Eyes closed | |
| Feet apart | FAEO-FIRM (Control task) | FAEC-FIRM | FAEO-FOAM | FAEC-FOAM |
| Tandem | TEO-FIRM | TEC-FIRM | TEO-FOAM | TEC-FOAM |
FA – Feet apart; T – Tandem; EO – Eyes open; EC – Eyes closed; Firm – firm surface; Foam – foam.
