2026-10-07
How to choose a thesis idea in physiotherapy: 5 steps to find a real research gap
Choosing the idea is the hardest part of a master's or PhD thesis. A weak idea means months of work on a question that was already answered, or that your department will not accept. Here is a simple method used by experienced researchers.
Step 1: Start from a clinical problem, not from a technique
Begin with patients you see: "my patients with knee osteoarthritis still have poor balance after treatment", or "office workers come with neck pain every week". A thesis that answers a real clinical problem is easier to justify in your introduction and more interesting for your committee.
Write your problem in one sentence. This becomes your field — for example knee osteoarthritis, stroke rehabilitation or neck pain in office workers.
Step 2: Read what the field already knows
Do not start with 100 random papers. Start with the most recent systematic reviews in your field (search PubMed for your topic plus "systematic review"). At the end of each review there is a section called implications for research or future research. Authors list exactly what is still unknown — these are ready-made gaps.
Step 3: Turn the gap into a PICO question
Write your idea in the PICO form:
- Patients: who exactly? (e.g. women over 60 with knee osteoarthritis)
- Intervention: what will you apply? (e.g. whole-body vibration)
- Comparison: compared with what? (e.g. conventional exercise)
- Outcome: what will you measure? (e.g. balance with the Berg Balance Scale)
A clear PICO makes the gap visible: often the intervention is well studied, but not in your patients, or not on your outcome.
Step 4: Test the idea with the FINER criteria
A good thesis idea is:
- Feasible — you can recruit enough patients, you have the equipment, and it fits your time.
- Interesting — to you and your supervisor.
- Novel — it adds something new (a new population, outcome, comparison or follow-up).
- Ethical — approved by the ethics committee, with no unnecessary risk.
- Relevant — the result will change practice or future research.
If your idea fails "Feasible", change one part of the PICO rather than dropping it.
Step 5: Check that it has not been done
Before you register the idea, check PubMed, the Cochrane Library, registered trials (ClinicalTrials.gov, WHO ICTRP, PACTR) and previous theses at your faculty. Many students discover after months that the same study was published last year.
A faster way: let Neura map the gaps for you
Neura's "Find an idea" does steps 2–5 for you. Write your field (for example knee osteoarthritis), and Neura searches PubMed and Europe PMC, maps which treatments and outcomes have been studied, and suggests thesis ideas from the gaps — a treatment that is well studied and an outcome that is often measured, but almost never together. Then you press "Check this idea" to see every related study before you decide.
It is free every day. Show the result to your supervisor and choose together.
Summary: start from a clinical problem → read recent systematic reviews → write a PICO → test it with FINER → check it has not been done.