Supporting People with PTSD: A Guide for NDIS Support Workers
This guide brings together current research and the practical experience we have gained supporting people with PTSD across South East Queensland. Our hope is that by sharing what we have learned, more individuals, families and support workers can benefit from support that is respectful, person-centred and evidence-informed.
Registered NDIS Provider · Gold Coast, Logan, Ipswich & Brisbane
PTSD is not a character flaw or a sign of weakness. It is what happens when a nervous system, shaped to protect someone from real danger, keeps responding to a threat that has already passed. Effective support is not about pushing someone to "move on" or "get over it." It is about understanding how trauma continues to shape a person's sense of safety, reducing unnecessary retraumatisation, building a genuinely trusted relationship, and creating conditions in which a person can rebuild a life that feels like their own.
At Hearts In Action, these principles guide the way we support people every day. This guide combines evidence from the research with practical insights from our work alongside people living with PTSD and their families. We hope it encourages thoughtful, trauma-informed support that helps people feel safe, regain a sense of control and move toward the life they want.
A note before you read on
Every person is unique, including every person with PTSD. The patterns in this guide come from research, but no two people experience trauma the same way, and no approach here will suit everyone.
Use this guide as a way to build understanding while remaining open, curious and responsive to the person you are supporting. Their experiences, preferences, strengths and pace should always guide the support they receive.
Safety and Trust Are the Intervention
If there is one finding that cuts across every major study in this field, it is this: felt safety, not just physical safety, is the foundation everything else is built on. People with PTSD have often learned, through direct experience, that the world and the people in it cannot always be trusted, so predictability and consistency from a support worker are not a nice-to-have, they are the mechanism through which trust is rebuilt. A qualitative study designing a trauma-informed therapy service found that low-barrier access, consistency and clear communication were the practical foundations that allowed people with complex trauma histories to engage with support at all, rather than disengaging as they had from services in the past (Edgar et al., 2025).
It's worth remembering
Be someone they can rely on. Keep your word, arrive when you say you will, and explain changes before they happen rather than after. For many people with PTSD, trust has been broken before, sometimes by the very people who were meant to protect them, so a support worker who is consistent, transparent and non-judgemental can become genuine evidence that safety is possible.
Understand What PTSD Actually Is
PTSD is a trauma-related condition that develops after a person experiences or witnesses an event that overwhelmed their capacity to cope, and it involves measurable changes in how the brain processes threat, memory and emotion, particularly within the circuit connecting the amygdala, hippocampus and prefrontal cortex that is responsible for detecting danger and regulating fear responses (Ressler et al., 2022). A qualitative study of adults living with PTSD found that daily occupations, things as ordinary as going to work, running errands or maintaining relationships, often require far greater effort than they appear to from the outside, feel less enjoyable, and are frequently driven by necessity rather than genuine choice (Levy-Smith et al., 2026). Someone who cancels plans, seems flat during an activity they used to enjoy, or needs long recovery time after a busy day is not being difficult. Their nervous system is working harder than yours to get through the same task.
It's worth remembering
PTSD is physiological, not a personality trait. When someone startles easily, avoids certain places, or needs more time and energy for tasks that seem simple, these are protective responses their body has learned, not choices they are making to be difficult.
Recognise Hypervigilance for What It Is
Hypervigilance is one of the most misunderstood features of PTSD. It shows up as scanning a room on entry, sitting near exits, reacting strongly to sudden noise or touch, or seeming unable to relax even in calm settings. Newer research shows hypervigilance also has an emotional dimension that is frequently overlooked: constantly monitoring one's own feelings for signs of distress, which is linked to poorer quality of life independent of other PTSD symptoms (Bacon & Norman, 2025). A person who seems tense, distracted or on edge in a support session may not be reacting to anything you have done. Their attention may simply be elsewhere, monitoring for danger that support workers cannot see.
It's worth remembering
Move and speak predictably. Avoid sudden movements, loud surprises, or standing behind someone without warning. If a person seems distracted or on edge, it is rarely personal, and naming it gently ("no rush, take your time") can help more than pushing forward with the plan.
Embrace Choice and Collaboration, Not Direction
Trauma, by definition, involves a loss of control, so restoring a genuine sense of choice is one of the most therapeutic things a support worker can offer. Research designing trauma-informed services with people who have lived experience of complex trauma found that being given real, meaningful choices, not just being asked what colour cup they wanted, but having a say in what happened in a session and when, was central to feeling respected rather than managed (Edgar et al., 2025). This principle extends to how support is scheduled and delivered, which is why our daily living support is built around what the person wants from each visit, not a fixed script.
It's worth remembering
Ask what the person wants from the session before deciding what to do, and be genuinely willing to change the plan. Offer real options rather than false ones, and respect a "no" the first time it is given, without needing an explanation.
Understand the Weight of Everyday Participation
Living with PTSD often means daily life takes more out of a person than it visibly shows. Participants in a phenomenological study of occupational participation described their days as shaped by fluctuating capacity, with some periods allowing fuller engagement and others requiring significant withdrawal, and identified routines, balancing activity with rest, and caring for others as key resources that helped them keep participating in life (Levy-Smith et al., 2026). This fluctuation is not inconsistency or unreliability. It is a realistic response to a nervous system that does not have the same capacity every day. Support that flexes with those changes, while gently rebuilding skills and confidence on the days that allow it, is how we approach capacity building.
It's worth remembering
Do not assume that because someone managed an activity easily last week, they should manage it just as easily this week. Check in on capacity each visit, and treat a lower-capacity day as information, not a setback.
Support Identity, Not Just Symptoms
Trauma can fracture a person's sense of who they are, and rebuilding an integrated identity is now understood as central to recovery, not a side effect of it. Research testing the Memory and Identity Theory of complex PTSD found that disturbances in a person's sense of self, including a fragmented or negative self-concept, are directly linked to core symptoms such as emotional numbing, and that these identity disturbances are as important to address as trauma memories themselves (Hyland et al., 2025). Many people living with PTSD carry a sense that the traumatic event defines them, or that who they were before no longer exists. Support that consistently reflects back a person's strengths, values and interests, separate from their trauma history, plays a genuine role in rebuilding that fractured sense of self, similar to the connection our community access support is built around.
It's worth remembering
Get to know the person beyond their diagnosis or their file. Ask about what they value, what they are good at, and what they are working toward. Reflecting a person's identity back to them, as more than "someone with PTSD," is quietly powerful.
Avoid Retraumatisation Through Predictability
Sudden change is one of the most common and avoidable sources of distress for people with PTSD. Trauma-informed frameworks applied in the NDIS context identify predictability, transparency and consent as core mechanisms for preventing retraumatisation, noting that support workers who explain routines clearly and give people control over their own care meaningfully reduce anxiety and increase engagement (United for Care, 2024). This is not about being overly cautious or walking on eggshells. It is about recognising that an unannounced change of plan, worker or environment can, for someone with a trauma history, register as a genuine threat rather than a minor inconvenience.
It's worth remembering
Flag changes early and explain the reason behind them. If a routine must shift, a short "here's what's changing and why" goes a long way toward keeping someone feeling safe rather than blindsided.
Address the Training Gap
Inadequate trauma-informed training is a structural problem that directly limits support quality. Studies co-designing trauma-informed services consistently find that support delivered without a genuine understanding of trauma responses can inadvertently recreate the dynamics of the original trauma, particularly around control, consent and unpredictability, undermining the very safety the support was meant to provide (Edgar et al., 2025). Trauma-informed knowledge is not a bonus skill. It is the baseline that determines whether support helps or harms.
It's worth remembering
Seek out trauma-informed care training on your own initiative, and revisit it regularly. General disability training rarely covers the specific ways trauma responses show up day to day. The more clearly you understand what someone's nervous system is actually managing, the more naturally your support adapts to what they need.
Families Are Partners, Not Peripheral
For many people with PTSD, family members carry significant informal load, and their own wellbeing is closely tied to the person they support. Research on informal caregiving in PTSD found that families frequently manage emotional strain, communication barriers and their own distress while trying to support a loved one, often without adequate guidance or acknowledgement (Ferrell et al., 2019). Communicating proactively with families, always with the participant's consent, and coordinating support respectfully extends your impact beyond the hours you are present and helps prevent the isolation that often affects both the person and the people who love them.
It's worth remembering
Where appropriate and with the participant's consent, keep families informed about what's going well and any changes you've noticed. A brief, clear update can ease household tension and help everyone provide support that fits together. Families are often carrying more than they show, and are rarely working from a place of full information.
References
- Bacon, A. M., & Norman, A. (2025). Emotional hypervigilance: Development of a new questionnaire and examining the importance to posttraumatic quality of life. Psychological Trauma: Theory, Research, Practice, and Policy. Advance online publication. https://doi.org/10.1037/tra0002065
- Edgar, N. E., MacLean, S. E., Jormand, M., Paranjkhoo, P., & Hatcher, S. (2025). Designing a trauma informed service to deliver trauma therapy with people experiencing homelessness: A qualitative study. BMC Health Services Research, 25(1), 1350. https://doi.org/10.1186/s12913-025-13428-8
- Ferrell, E. L., Russin, S. E., & Hardy, R. M. (2019). Informal caregiving experiences in posttraumatic stress disorder: A content analysis of an online community. Journal of Community Psychology, 47(4), 757–771. https://doi.org/10.1002/jcop.22151
- Hyland, P., Broughill, M., Shevlin, M., & Brewin, C. R. (2025). Memory and identity processes in ICD-11 complex posttraumatic stress disorder: Tests of a new theory. Journal of Anxiety Disorders, 114, 103055. https://doi.org/10.1016/j.janxdis.2025.103055
- Levy-Smith, S., Maeir, A., & Lipskaya-Velikovsky, L. (2026). Beyond observable participation: Occupational experiences, temporal dynamics, and resources used in posttraumatic stress disorder. OTJR: Occupation, Participation and Health. Advance online publication. https://doi.org/10.1177/15394492261459956
- Ressler, K. J., Berretta, S., Bolshakov, V. Y., Rosso, I. M., Meloni, E. G., Rauch, S. L., & Carlezon, W. A., Jr. (2022). Post-traumatic stress disorder: Clinical and translational neuroscience from cells to circuits. Nature Reviews Neurology, 18(5), 273–288. https://doi.org/10.1038/s41582-022-00635-8
- United for Care. (2024). Safety first: Why trauma-informed care matters for people with psychosocial disabilities. Retrieved from the Wayback Machine archive (the live page has since been taken down): https://web.archive.org/web/20251125112530/https://www.unitedforcare.com.au/post/safety-first-why-trauma-informed-care-matters-for-people-with-psychosocial-disabilities