Musculoskeletal and Orthopedic Physiotherapy Research Topics Ideas
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Musculoskeletal and Orthopedic Physiotherapy Research Topics Ideas

Last updated: August 2026

Choosing a physiotherapy research topic is easier when you start with a research gap, rather than simply choosing a condition or treatment that interests you.

The 20 musculoskeletal and orthopedic physiotherapy research topics below were selected from gaps and uncertainties identified in recent systematic reviews, meta-analyses and randomized controlled trials (RCTs). Priority was given to questions where the existing evidence remains limited, inconsistent, short-term, poorly standardised, or unable to tell clinicians which intervention works best for which patient.

These are intended as starting points for a physiotherapy thesis, dissertation, research proposal or clinical project. The exact research question should be adapted to your population, available equipment, setting and study design.

Importantly, a recommendation for “more research” does not automatically mean that another small trial of the same intervention is useful. Many areas of musculoskeletal physiotherapy already have substantial evidence that exercise works. Increasingly, the important questions are:

  • What is the optimal dose?
  • Which patients respond best?
  • How should treatment be progressed?
  • What improves adherence?
  • Are benefits maintained in the long term?
  • Which outcomes actually matter to patients?
  • Can rehabilitation be delivered effectively outside highly controlled research settings?

20 Musculoskeletal and Orthopedic Physiotherapy Research Topic Ideas

Tendinopathy and Shoulder Rehabilitation

1. Which Progressive Loading Strategy Works Best for Patellar Tendinopathy?

Research topic idea:
Comparing Standardised Heavy Slow Resistance With an Individualised Progressive Tendon-Loading Programme for Patellar Tendinopathy: Effects on Pain, Function, Return to Sport and Long-Term Recurrence

Why this is still a research gap:
Exercise is already central to patellar tendinopathy rehabilitation, so another study simply asking whether exercise is effective would add relatively little. A 2026 systematic review and network meta-analysis found no clear clinically meaningful superiority between several progressive loading approaches. The evidence network was sparse, and the authors specifically called for clearer intervention definitions, more comparable populations and consistent follow-up schedules.

A useful study could therefore compare well-defined loading strategies, measure adherence and actual load progression, and include outcomes beyond short-term VISA-P scores, such as return to sport and recurrence at 6–12 months.

Suggested design: RCT with standardised intervention reporting and long-term follow-up.

Evidence basis: Liu et al. Comparative effectiveness of exercise interventions for patellar tendinopathy: a systematic review and network meta-analysis of randomized controlled trials. BMC Sports Science, Medicine and Rehabilitation. 2026. PMID: 42192475. DOI: 10.1186/s13102-026-01743-4.

Explore related research: Search PhysioKeys for studies on patellar tendinopathy loading strategies →


2. Which Components of Low-Compression Rehabilitation Matter Most in Insertional Achilles Tendinopathy?

Research topic idea:
Determining the Active Components of Low Tendon Compression Rehabilitation for Insertional Achilles Tendinopathy: Heel Lifts, Dorsiflexion Restriction and Stretching Modification

Why this is still a research gap:
A 2025 RCT found that a rehabilitation programme designed to reduce Achilles tendon compression produced greater improvements than a high-compression rehabilitation programme in sport-active people with insertional Achilles tendinopathy.

However, the low-compression programme changed several things simultaneously: ankle dorsiflexion during exercise was limited, calf stretching was removed and heel lifts were used.

The authors specifically recommended research that isolates these components to determine which parts of the programme are responsible for the improvement.

Suggested design: Factorial RCT or multi-arm RCT with at least 6–12 months of follow-up.

Evidence basis: Pringels et al. Effectiveness of reducing tendon compression in the rehabilitation of insertional Achilles tendinopathy: a randomised clinical trial. British Journal of Sports Medicine. 2025. PMID: 40011018. DOI: 10.1136/bjsports-2024-109138.

Explore related research: Search PhysioKeys for studies on insertional Achilles tendinopathy rehabilitation →


Rotator Cuff-Related Shoulder Pain

3. What Is the Optimal Frequency and Duration of Exercise for Rotator Cuff-Related Shoulder Pain?

Research topic idea:
Dose-Response Effects of Exercise Frequency and Session Duration in Rotator Cuff-Related Shoulder Pain

Why this is still a research gap:
This is one of the clearest current research gaps.

A systematic review examining exercise according to the FITT principle included 22 RCTs and found some evidence favouring motor-control exercise for disability. However, the review identified no trials directly comparing different exercise frequencies or exercise durations.

Rather than comparing another named shoulder exercise with another named exercise, a carefully designed dose-response RCT could answer a clinically useful question: how much exercise should we actually prescribe?

Suggested design: Multi-arm dose-response RCT comparing different frequencies and/or session durations while keeping exercise type and progression consistent.

Evidence basis: Lafrance et al. The Efficacy of Exercise Therapy for Rotator Cuff-Related Shoulder Pain According to the FITT Principle: A Systematic Review With Meta-analyses. Journal of Orthopaedic & Sports Physical Therapy. 2024. PMID: 38848304. DOI: 10.2519/jospt.2024.12453.

Explore related research: Search PhysioKeys for studies on exercise dosage for rotator cuff-related shoulder pain →


4. Can Rotator Cuff Rehabilitation Be Personalised According to Clinical and Psychosocial Characteristics?

Research topic idea:
Individualised Versus Standardised Exercise for Rotator Cuff-Related Shoulder Pain: Can Baseline Physical and Psychosocial Characteristics Predict Treatment Response?

Why this is still a research gap:
The same systematic review found that motor-control programmes may provide slightly better disability outcomes than nonspecific exercise, but it remains unclear whether this occurs because of the exercise itself or because these programmes are more carefully progressed and tailored.

Recent prospective work also suggests that changes in pain-related fear and catastrophising are associated with disability and differ between treatment responders and nonresponders.

A strong next step would be to determine whether incorporating these characteristics into exercise prescription actually improves treatment outcomes.

Suggested design: Stratified RCT or prospective responder study with prespecified treatment-effect moderators.

Evidence basis: Lafrance et al. The Efficacy of Exercise Therapy for Rotator Cuff-Related Shoulder Pain According to the FITT Principle: A Systematic Review With Meta-analyses. Journal of Orthopaedic & Sports Physical Therapy. 2024. PMID: 38848304; and Mears et al. Changes in Pain-Related Fear Predict Shoulder Disability in Rotator Cuff Tendinopathy With Resistance Exercise. Journal of Orthopaedic & Sports Physical Therapy. 2026. PMID: 42538792. DOI: 10.2519/jospt.2026.13563.

Explore related research: Search PhysioKeys for studies on personalised rotator cuff rehabilitation →


5. Exercise Rehabilitation for Adhesive Capsulitis in People With Diabetes

Research topic idea:
Long-Term Effectiveness of Progressive Resistance Exercise for Adhesive Capsulitis in People With Diabetes: A Large Randomized Controlled Trial

Why this is still a research gap:
Diabetes is an important clinical subgroup in adhesive capsulitis, yet intervention evidence specific to this population remains limited.

A 2026 pilot RCT found encouraging improvements in range of motion, pain and disability following an eight-week resistance-band programme, but the study included only 28 participants.

The authors specifically recommended larger randomized trials with longer follow-up.

Suggested design: Adequately powered RCT with 6- and 12-month follow-up, ideally including treatment adherence and diabetes-related variables.

Evidence basis: Moghadasi & Jafari. Effects of resistance-band shoulder exercise on pain, range of motion, and functional disability in diabetic adults with adhesive capsulitis: a pilot randomized controlled trial. BMC Musculoskeletal Disorders. 2026. PMID: 42477667. DOI: 10.1186/s12891-026-10211-6.

Explore related research: Search PhysioKeys for studies on exercise for adhesive capsulitis in people with diabetes →


Low Back Pain, Sciatica and Neck Pain

6. What Is the Optimal Exercise Dose for Chronic Non-Specific Low Back Pain?

Research topic idea:
A Prospective Dose-Response Trial of Exercise for Chronic Non-Specific Low Back Pain: Frequency, Intensity and Weekly Training Volume

Why this is still a research gap:
A 2024 systematic review with Bayesian network meta-analysis identified a nonlinear relationship between exercise dose and pain across 82 trials involving 5,033 participants.

That is important, but meta-analytic dose-response relationships are generated from differences between existing studies. They are not the same as deliberately randomising similar patients to different doses of the same intervention under controlled conditions.

A prospective dose-response RCT could test whether increasing weekly training volume actually causes better outcomes and where diminishing returns begin.

Suggested design: Multi-arm RCT comparing low-, moderate- and higher-dose versions of the same exercise programme.

Evidence basis: Liang et al. The Best Exercise Modality and Dose for Reducing Pain in Adults With Low Back Pain: A Systematic Review With Model-Based Bayesian Network Meta-analysis. Journal of Orthopaedic & Sports Physical Therapy. 2024. PMID: 38457134. DOI: 10.2519/jospt.2024.12153.

Explore related research: Search PhysioKeys for studies on exercise dosage for chronic low back pain →


7. Which Active Physiotherapy Programme Works Best for Acute and Subacute Sciatica?

Research topic idea:
Standardised Exercise-Based Physiotherapy Versus Best-Practice Advice for Acute and Subacute Sciatica: Effects on Leg Pain, Function and Progression to Persistent Symptoms

Why this is still a research gap:
Sciatica is common, yet confidence in the comparative effectiveness of nonsurgical treatments remains surprisingly low.

A 2025 systematic review and network meta-analysis concluded that the evidence supporting nonsurgical interventions for acute and subacute sciatica was very low confidence, largely because of bias and imprecision.

A well-powered physiotherapy trial with clearly defined diagnostic criteria, a reproducible intervention and meaningful long-term outcomes could therefore make a substantial contribution.

Suggested design: Pragmatic multicentre RCT with 6–12 month follow-up.

Evidence basis: Zhu et al. Effectiveness of Nonsurgical Interventions for Patients With Acute and Subacute Sciatica: A Systematic Review With Network Meta-Analysis. Journal of Orthopaedic & Sports Physical Therapy. 2025. PMID: 40434940. DOI: 10.2519/jospt.2025.13068.

Explore related research: Search PhysioKeys for studies on exercise and physiotherapy for acute and subacute sciatica →


8. What Is the Optimal Exercise Dose for Chronic Neck Pain?

Research topic idea:
Comparing Different Doses of Strengthening and Motor-Control Exercise for Chronic Non-Specific Neck Pain

Why this is still a research gap:
A 2026 umbrella review synthesising 52 systematic reviews concluded that exercise is beneficial for neck pain, but no single exercise approach was clearly superior.

More importantly, optimal exercise dosage remains unclear, particularly for strengthening programmes.

The next useful question is therefore no longer simply “does strengthening work?”, but how much strengthening is required, how it should progress and whether different patients require different doses.

Suggested design: Dose-response RCT with objectively monitored adherence.

Evidence basis: Amin et al. Overview of reviews for effectiveness of exercise-based interventions for neck pain. Journal of Manual and Manipulative Therapy. 2026. PMID: 42319264. DOI: 10.1080/10669817.2026.2687807.

Explore related research: Search PhysioKeys for studies on exercise dosage for chronic neck pain →


Rehabilitation Before and After Spine Surgery

9. When Should Active Rehabilitation Begin After Lumbar Disc Surgery?

Research topic idea:
Early Versus Delayed Criterion-Based Active Rehabilitation Following Lumbar Disc Herniation Surgery

Why this is still a research gap:
Physical therapy after lumbar disc surgery appears to improve pain and function, but a 2025 evidence synthesis of 55 RCTs involving 4,311 patients concluded that the optimal timing of rehabilitation remains unresolved.

Important uncertainties also remain around complications and the cost-effectiveness of supervised exercise.

A contemporary trial should therefore compare clearly defined rehabilitation start points rather than simply comparing rehabilitation with no rehabilitation.

Suggested design: Multicentre RCT comparing early criterion-based rehabilitation with later initiation, including complications, return to work and health-economic outcomes.

Evidence basis: Brotis et al. Physical therapies after surgery for lumbar disc herniation—evidence synthesis from 55 randomized controlled trials (RCTs) and a total of 4,311 patients. Brain & Spine. 2025. PMID: 40165991. DOI: 10.1016/j.bas.2025.104238.

Explore related research: Search PhysioKeys for studies on rehabilitation after lumbar disc surgery →


10. Which Patients Actually Benefit From Prehabilitation Before Lumbar Spine Surgery?

Research topic idea:
Targeted Prehabilitation Versus Usual Care Before Lumbar Spine Surgery: Identifying Responding Patient Subgroups

Why this is still a research gap:
A 2026 systematic review found minimal overall benefits of preoperative physiotherapy for degenerative lumbar spine disease, but the evidence was very low certainty, interventions were heterogeneous and included studies had high risk of bias.

Importantly, the authors recommended better trials designed to determine which patient subgroups may benefit most.

This makes patient selection a better research question than simply repeating “prehabilitation versus usual care” in an unselected population.

Suggested design: Stratified multicentre RCT examining moderators such as baseline physical capacity, frailty, psychosocial factors or functional limitation.

Evidence basis: The Added Value and the Efficacy of Preoperative Physiotherapy on Degenerative Diseases of the Lumbar Spine: A Systematic Review. Physiotherapy Research International. 2026. PMID: 41995044. DOI: 10.1002/pri.70214.

Explore related research: Search PhysioKeys for studies on prehabilitation before lumbar spine surgery →


Knee Osteoarthritis and Joint Replacement

11. Does the Exercise Dose Patients Actually Complete Matter More Than the Dose We Prescribe in Knee Osteoarthritis?

Research topic idea:
Achieved Versus Prescribed Resistance-Exercise Dose in Knee Osteoarthritis and Its Association With Pain, Function and Strength

Why this is still a research gap:
A 2025 systematic review with meta-regression could not identify a relationship between the prescribed total resistance-exercise dose and improvements in pain or function.

However, the review highlighted an important methodological problem: the amount of exercise participants actually complete is often not measured or reported. Studies therefore frequently analyse the prescription rather than the true exposure.

A prospective study using exercise logs, wearable sensors or resistance-training devices could answer whether achieved dose predicts outcomes better than prescribed dose.

Suggested design: Prospective cohort nested within an RCT, or dose-response RCT with objective adherence monitoring.

Evidence basis: de Wit et al. Association Between Prescribed Dosage of Resistance Exercise and Change in Pain and Physical Function in Knee Osteoarthritis: A Systematic Review With Meta-Regression. Musculoskeletal Care. 2025. PMID: 40320557. DOI: 10.1002/msc.70110.

Explore related research: Search PhysioKeys for studies on resistance-exercise dosage and adherence in knee osteoarthritis →


12. How Can Better Exercise Adherence Be Converted Into Better Clinical Outcomes in Knee Osteoarthritis?

Research topic idea:
From Exercise Adherence to Clinical Benefit in Knee Osteoarthritis: Does Individualised Progression Improve Outcomes When Added to a Digital Adherence Intervention?

Why this is still a research gap:
Increasing adherence alone may not be enough.

A recent randomized clinical trial found that adding a mobile app to physiotherapist-prescribed home strengthening approximately doubled the likelihood of complete adherence at 26 weeks, yet better adherence did not translate into superior function.

That raises a more interesting question: does adherence only improve outcomes when the exercise itself is sufficiently progressed, dosed and individualised?

Suggested design: Factorial RCT comparing standard home exercise, adherence support, individually progressed exercise, and the combination.

Evidence basis: Hinman et al. Mobile app to support home exercise adherence in knee osteoarthritis: A randomized clinical trial. Osteoarthritis and Cartilage. 2025. PMID: 41418994. DOI: 10.1016/j.joca.2025.12.012.

Explore related research: Search PhysioKeys for studies on home-exercise adherence and digital support in knee osteoarthritis →


13. Can Rehabilitation Be Personalised for Patients at Risk of Poor Recovery After Total Knee Arthroplasty?

Research topic idea:
Targeted Postoperative Rehabilitation for Patients at High Risk of Poor Functional Recovery Following Total Knee Arthroplasty

Why this is still a research gap:
Generic postoperative rehabilitation protocols may not be the most useful area for another trial.

A 2025 systematic review specifically examining patients at risk of poorer outcomes after TKA found insufficient evidence for most rehabilitation approaches, substantial heterogeneity and inconsistent outcome measurement.

The authors called for robust studies of tailored interventions targeting factors associated with poor recovery and better standardisation of outcomes.

Suggested design: Risk-stratified RCT comparing targeted rehabilitation with standard postoperative care.

Evidence basis: Karimijashni et al. Postoperative Rehabilitation Interventions in Patients at Risk of Poorer Outcomes Following Total Knee Arthroplasty: A Systematic Review. Musculoskeletal Care. 2025. PMID: 39853665. DOI: 10.1002/msc.70054.

Explore related research: Search PhysioKeys for studies on targeted rehabilitation after total knee arthroplasty →


14. What Are the Long-Term Outcomes of Telerehabilitation After Total Hip Arthroplasty in Older Adults?

Research topic idea:
Hybrid Telerehabilitation Versus Face-to-Face Rehabilitation After Total Hip Arthroplasty in Older Adults: A 12-Month Trial

Why this is still a research gap:
Telerehabilitation after total hip arthroplasty appears capable of producing functional and quality-of-life outcomes comparable to traditional rehabilitation.

However, a 2026 systematic review identified substantial methodological variation and a lack of long-term evidence, and specifically recommended future studies including older patients.

A trial could also determine whether a hybrid model provides the accessibility of telerehabilitation without losing the benefits of periodic face-to-face assessment.

Suggested design: Non-inferiority or superiority RCT with 12-month follow-up and adherence, falls, satisfaction and cost-effectiveness outcomes.

Evidence basis: Farì et al. The potential expected effects of telerehabilitation after total hip arthroplasty: A systematic review. Journal of Back and Musculoskeletal Rehabilitation. 2026. PMID: 42307257. DOI: 10.1177/10538127261457661.

Explore related research: Search PhysioKeys for studies on telerehabilitation after total hip arthroplasty →


ACL and Sports Knee Rehabilitation

15. Does a Multidimensional Return-to-Sport Assessment Improve Outcomes After ACL Reconstruction?

Research topic idea:
Multidimensional Versus Conventional Return-to-Sport Clearance After ACL Reconstruction: Effects on Return to Performance and Second ACL Injury

Why this is still a research gap:
Return-to-sport decisions remain inconsistent.

Recent evidence suggests that psychological readiness contributes important information that cannot be captured by strength or hop testing alone. At the same time, a 2025 review of return-to-sport testing found substantial variation between protocols, with change-of-direction, agility and biomechanical assessments used much less consistently.

A clinically valuable trial could determine whether a predefined combination of strength, hop performance, movement quality, sport-specific capacity and psychological readiness leads to safer or more successful return to sport than conventional clearance.

Suggested design: Cluster RCT or prospective multicentre trial with second-injury and sustained-return-to-sport outcomes.

Evidence basis: Integrating psychological and physical assessments to obtain optimal return-to-sport outcomes after ACL reconstruction: A systematic review and network meta-analysis. Journal of Sports Sciences. 2025. DOI: 10.1080/02640414.2025.2534224.

Explore related research: Search PhysioKeys for studies on return-to-sport criteria after ACL reconstruction →


16. Do Female Athletes Need Sex-Specific Rehabilitation After ACL Reconstruction?

Research topic idea:
Sex-Specific Rehabilitation and Psychological Support Following ACL Reconstruction: Effects on Return to Sport in Female Athletes

Why this is still a research gap:
A 2026 systematic review and exploratory meta-analysis involving 7,183 athletes found that female athletes had lower odds of returning to sport during the first 12–24 months after ACL reconstruction.

The authors specifically highlighted the need for sex-specific rehabilitation and psychological-support strategies.

Rather than conducting another observational comparison, a future trial could test whether a rehabilitation programme designed around the barriers experienced by female athletes actually changes return-to-sport outcomes.

Suggested design: Multicentre RCT or prospective implementation trial in female athletes.

Evidence basis: Elliott et al. Are There Sex Disparities in Return to Sport After Anterior Cruciate Ligament Reconstruction? A Systematic Review and Exploratory Meta-analysis. American Journal of Sports Medicine. 2026. PMID: 42252835. DOI: 10.1177/03635465261448489.

Explore related research: Search PhysioKeys for studies on return to sport in female athletes after ACL reconstruction →


Ankle Instability and Hamstring Rehabilitation

17. Can Chronic Ankle Instability Rehabilitation Be Matched to the Patient’s Specific Deficit?

Research topic idea:
Deficit-Matched Versus Standard Balance Rehabilitation for Chronic Ankle Instability

Why this is still a research gap:
Chronic ankle instability is not one uniform problem.

A 2026 systematic review and meta-analysis of 58 studies involving 2,097 participants found that different exercise modalities affect different sensorimotor outcomes. Balance training produced broad benefits, whereas other approaches appeared to target more specific deficits. No intervention significantly improved some outcomes, including force sense and eccentric strength.

The logical next question is whether assessing the patient’s dominant deficit first and then matching rehabilitation to that deficit produces better outcomes than giving everyone the same balance programme.

Suggested design: Stratified RCT comparing deficit-matched rehabilitation with standardised balance training.

Evidence basis: Xu et al. Exercise Therapy for Chronic Ankle Instability: Which Modality for Which Deficit? A Systematic Review and Meta-Analysis. Journal of Foot and Ankle Research. 2026. PMID: 41771785. DOI: 10.1002/jfa2.70142.

Explore related research: Search PhysioKeys for studies on deficit-specific rehabilitation for chronic ankle instability →


18. Does Adding Coordination Training Improve Hamstring Rehabilitation?

Research topic idea:
Eccentric Lengthening Exercise With Versus Without Intermuscular Coordination Training Following Hamstring Strain

Why this is still a research gap:
Eccentric lengthening programmes already have meaningful evidence behind them, making another basic eccentric-versus-control study less valuable.

A 2025 systematic review and meta-analysis found benefits from eccentric rehabilitation but identified small samples, substantial protocol heterogeneity and male-dominated study populations. The authors specifically highlighted sex differences and the role of coordination in rehabilitation as priorities for future research.

Suggested design: RCT adding sprint-specific or intermuscular coordination training to an evidence-based eccentric programme, with reinjury and return-to-performance outcomes.

Evidence basis: Abdulridha et al. Comparative effectiveness of rehabilitation protocols for hamstring injuries: A systematic review and meta-analysis. Journal of Bodywork and Movement Therapies. 2025. PMID: 40954668. DOI: 10.1016/j.jbmt.2025.06.030.

Explore related research: Search PhysioKeys for studies on eccentric and coordination-based hamstring rehabilitation →


Scoliosis Rehabilitation

19. What Is the Optimal Dose of Physiotherapeutic Scoliosis-Specific Exercise?

Research topic idea:
Dose-Response and Long-Term Effects of Physiotherapeutic Scoliosis-Specific Exercise in Adolescent Idiopathic Scoliosis

Why this is still a research gap:
The important question is no longer simply whether PSSE can produce benefits.

A 2025 systematic review and meta-analysis of 18 RCTs involving 1,014 adolescents found improvements in Cobb angle, angle of trunk rotation and quality of life. Higher-frequency programmes appeared more effective.

However, the authors specifically called for further RCTs to establish the optimal exercise dose and identify factors that influence treatment response.

Future trials should therefore examine frequency, session duration, adherence, curve characteristics and longer-term outcomes rather than comparing PSSE with no exercise alone.

Suggested design: Multicentre dose-response RCT stratified by curve pattern and severity, with follow-up extending beyond treatment completion.

Evidence basis: Jia et al. Effectiveness of physical therapeutic scoliosis exercise (PSSE) intervention for adolescent idiopathic scoliosis: a systematic review and meta-analysis. BMC Musculoskeletal Disorders. 2025. PMID: 41073947. DOI: 10.1186/s12891-025-09218-2.

Explore related research: Search PhysioKeys for studies on PSSE dosage in adolescent idiopathic scoliosis →


Foot Rehabilitation

20. Should Flexible Flatfoot Rehabilitation Target the Entire Lower-Limb Kinetic Chain?

Research topic idea:
Comprehensive Lower-Limb Strengthening Versus Short-Foot Exercise Alone in Adults With Symptomatic Flexible Flatfoot

Why this is still a research gap:
Short-foot exercise has already been studied repeatedly, so simply comparing it with no exercise is becoming less informative.

A 2024 network meta-analysis of RCTs suggested potential advantages from interventions incorporating hip, lower-limb and posterior tibial strengthening. However, only 11 studies with 335 participants were available, some networks contained very few trials, intervention durations varied substantially and the authors highlighted small samples and imprecise estimates.

They recommended further high-quality RCTs to refine comprehensive strengthening approaches. Important details such as the optimal loading angle, speed, repetitions and treatment duration for posterior tibial strengthening also remain unresolved.

A future study should prioritise symptomatic patients and patient-important outcomes such as pain, walking ability and function, rather than relying mainly on arch measurements.

Suggested design: RCT comparing short-foot exercise with a comprehensive hip-knee-foot strengthening programme, with at least 6–12 months of follow-up.

Evidence basis: Jia et al. Comparing the efficacy of exercise therapy on adult flexible flatfoot individuals through a network meta-analysis of randomized controlled trials. Scientific Reports. 2024. PMID: 39261538. DOI: 10.1038/s41598-024-72149-w.

Explore related research: Search PhysioKeys for studies on exercise and strengthening for symptomatic flexible flatfoot →


Types of Research in Musculoskeletal and Orthopedic Physiotherapy

The best research design depends on the question being asked. A randomized controlled trial is powerful for evaluating the causal effect of an intervention, but it is not automatically the best design for questions about prognosis, diagnosis, patient experiences or natural history.

Interventional Research

Interventional studies test whether changing treatment changes an outcome. These include randomized controlled trials, pragmatic trials, feasibility studies and pilot trials.

Example: Comparing two different exercise doses for chronic low back pain.

Observational and Prognostic Research

These studies investigate associations or follow patients over time without assigning the exposure or treatment.

They are useful for identifying predictors of recovery, recurrence or treatment response.

Example: Determining whether baseline quadriceps strength, psychological readiness and movement quality predict return to sport following ACL reconstruction.

Diagnostic and Measurement Research

These studies investigate the accuracy, validity, reliability or responsiveness of clinical tests and outcome measures.

Example: Evaluating the diagnostic accuracy of a clinical test for gluteal tendinopathy or the responsiveness of a patient-reported outcome measure during rehabilitation.

Biomechanical Research

Biomechanical studies investigate movement, joint loading, muscle activity, force production and other mechanical characteristics.

Biomechanics can be incorporated into experimental, cross-sectional or longitudinal study designs.

Example: Examining whether different rehabilitation strategies alter landing biomechanics after ACL reconstruction.

Qualitative Research

Qualitative research explores experiences, beliefs, barriers, expectations and decision-making.

It can be particularly useful when an intervention is known to work but implementation or adherence remains poor.

Example: Exploring why people with knee osteoarthritis discontinue long-term exercise despite receiving physiotherapy.

Systematic Reviews and Meta-Analyses

Evidence syntheses bring together existing studies to answer a focused research question and identify remaining uncertainties.

A new systematic review is most useful when the literature has changed enough to justify an update or when an important question has not previously been synthesised.

Example: Comparing different methods of exercise progression following rotator cuff-related shoulder pain.

How to Turn One of These Ideas Into a Thesis Question

A good research topic is only the starting point. Before committing to it:

  1. Search the most recent evidence. A research gap identified two years ago may already have been addressed.
  2. Define the population precisely. “Shoulder pain” is much less useful than “adults with rotator cuff-related shoulder pain.”
  3. Define the intervention in enough detail that it can be reproduced.
  4. Choose a meaningful comparator. Another active treatment may be more useful than a no-treatment control.
  5. Prioritise patient-important outcomes. Pain, function, participation, recurrence and quality of life are often more meaningful than isolated biomechanical changes.
  6. Include adequate follow-up. Many musculoskeletal interventions have already demonstrated short-term effects while long-term outcomes remain uncertain.
  7. Measure adherence and actual treatment exposure whenever possible.
  8. Check feasibility. The best student project is not necessarily the most complicated question; it is the strongest question that can realistically be answered with the available time, population and equipment.

Before You Finalise Your Research Topic

A research question should be considered provisional until you have checked whether newer studies have already answered it.

Search recent systematic reviews, randomized controlled trials and physiotherapy research in PhysioKeys before finalising your protocol. This can also help you identify appropriate outcome measures, intervention parameters and references for your literature review.

Research gaps change as new evidence is published, so this list will continue to be updated as the musculoskeletal and orthopedic physiotherapy literature evolves.

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