Which statement about CTSIB is true?

• A. It only tests static balance.
• B. It involves testing six sensory conditions on solid and unstable surfaces.
• C. It measures cardiovascular endurance.
• D. It assesses fine motor control.

Answer: (B)

CTSIB examines how balance relies on sensory input by systematically challenging vision and surface feedback. It uses six testing conditions that vary whether the person has eyes open, eyes closed, or sway-referenced vision, and whether they stand on a firm surface or a foam (unstable) surface. This setup reveals how well the person can use visual, vestibular, and somatosensory cues to stay upright when some information is unreliable. That’s why describing six sensory conditions on solid and unstable surfaces is the true statement. The other options miss the focus on sensory integration (cardiovascular endurance and fine motor control aren’t what CTSIB assesses), and while the task is performed in a static stance, its core purpose is to test how sensory inputs support balance.