Table 2.

SAF-T intervention script.

Component	Description
Objective	To alleviate stress, anxiety, and depression in ICU patients’ family members via SAF-T, empowering them for independent stress management. Skill application is encouraged based on personal relevance, not mandated.
Participants	Eligible family members of ICU patients meeting inclusion/exclusion criteria.
Duration	15–20 min/session for 3 consecutive days.
Location	Quiet, comfortable conversation room.
Intervention process	1. Pre-intervention: Schedule session; obtain informed consent; collect baseline data. 2. Intervention Sessions: ① Introduction/Review: Explain purpose and build trust/Review the previous homework and practical work situation. (About 3 min) ② Stress source identification: Link stress responses to ICU-related factors. (About 3 min) ③ SAF-T: Sit facing the subject, place your hand within their line of sight, and perform rapid parallel sliding for 1 min. Moving left to right counts as once, and right to left as twice, repeating for at least 40 cycles per minute. Keep arm swing within 90°. The subject should keep their head still, follow the researcher’s finger movement with their eyes only, and maintain slow, rhythmic deep breathing. The detailed SAF-T intervention procedures can be found in supplement 1. (About 10 min) ④ After the SAF-T: Collect participant feedback and complete the session checklist for this case. (About 4 min) ⑤ Practice & Generalization: If the participant is willing, sessions on Days 2 and 3 will focus on independent practice; discuss real-life application after final session. 3. Follow-up: Assessments at 3, 30, 90 days post-intervention and within 24 h after ICU discharge via outpatient/phone/online.