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Is LSVT BIG Worth the Fee? How Does It Differ From Ordinary Big-Movement Exercise?

In rehabilitation for Parkinson's disease, LSVT BIG is almost the most searched-for therapy name, and also the one most easily turned into a legend. Advertising often claims it can "reshape movement" and "reverse decline", and it comes with a substantial fee. The standard programme is 16 sessions of 1 hour over 4 consecutive weeks, plus daily home practice. This leaves many carers asking: is the programme really worth the fee? Compared with the patient practising big movements at home, or having an ordinary physiotherapist run high-intensity training, does it really offer an extra advantage?

This article neither promotes a "miracle effect" nor dismisses the therapy blindly. Based on verified randomised controlled studies, it looks objectively at three main points: the principle of LSVT BIG (why movements must be deliberately exaggerated), how strong the evidence is (it does improve UPDRS-III and TUG, but by how much in practice), and the most important myth to unpick (debunk), which is whether it has any unique added benefit compared with "ordinary big-movement or high-intensity exercise". After reading, readers will have a framework for judging whether LSVT BIG is worth it according to the stage of illness, rehabilitation goals and practical burden, without having to decide on advertising alone. This article is an in-depth piece under flexibility and posture training for Parkinson's disease. For the full overview, see physiotherapy for Parkinson's disease.

The conclusion first:LSVT BIG is a well-structured programme supported by research evidence, and it suits patients with Parkinson's disease at the early to middle stage. However, its effect actually comes from the basic principles of "high intensity, large movement amplitude and intensive continuation". A trained physiotherapist can apply the same principles through other high-intensity big-movement programmes. So the question of whether this programme is worth it does not depend on anything magical about LSVT BIG itself. It depends on the patient's present stage of illness, rehabilitation goals, and whether the patient's strength and time can cope with such an intensive training pattern.

The principle of LSVT BIG big-movement training

To understand how LSVT BIG works, one core feature of Parkinson's disease must be understood first: reduced movement amplitude (hypokinesia) combined with faulty perception. The patient's brain unconsciously "underestimates" the size of the patient's own movements. The actual movement is tiny, but the patient feels it is enough, leading to short steps, smaller and smaller handwriting (micrographia), and cramped, timid movements such as standing up and turning. The root of the problem is not only that "the muscles do not obey" but that "the brain thinks the amplitude is already enough".

The core strategy of LSVT BIG addresses this perception bias directly. The patient is asked to deliberately make whole-body movements that are "so exaggerated that even the patient feels they are too big", with high-intensity, constantly repeated verbal cues and feedback from the therapist, gradually recalibrating the sense of what amplitude counts as normal. The medical name for this mechanism is proprioceptive recalibration, and it is not just an advertising slogan. A clinical study looking at the mechanism (Peterka 2020) used a pointing task and showed that patients' proprioceptive pointing error did decrease after the programme, giving preliminary physiological evidence for the principle above (although the sample was small and the evidence is only preliminary).

It does not teach the patient to "move more". It helps the brain work out again "how big a movement has to be to count as normal", and then brings this enlarged amplitude into every movement of daily life.
The treatment logic of LSVT BIG

Standard programme: 16 sessions × 1 hour × 4 weeks

LSVT BIG is not a matter of "being shown a few movements". It is a strictly structured intensive treatment plan with a clearly defined training dose. Knowing the training density explains why the programme costs a lot and why it cannot be done on and off.

  1. 1
    4 consecutive days a week for 4 weeks (16 sessions in total)
    Each session lasts about 60 minutes, with one-to-one guidance from a certified therapist. This high-density arrangement is the core of the whole programme. It is more than simply adding more sessions.
  2. 2
    7 sets of maximal-amplitude movements (core exercises)
    Every day the patient repeats a set of standardised whole-body movements done with the largest possible amplitude. During practice, the therapist keeps reminding and urging the patient to make the movement even bigger.
  3. 3
    Functional tasks and hierarchy tasks
    The therapist builds the "big movement" approach into everyday movements such as getting up, turning, walking and reaching for things, practising in stages from easy to harder.
  4. 4
    Daily home practice (during and after the programme)
    Whether or not there is a session that day, the patient practises alone at home every day, turning the enlarged movement amplitude into a daily habit. How well the programme works depends to a large extent on whether the patient can keep practising every day.

Success depends on "intensity". The LSVT BIG system of 16 sessions in 4 weeks assumes the patient can keep up with this tight rhythm. If the programme has to be stretched out and the number of sessions a week reduced because of travel, lack of strength or scheduling, the training result is greatly reduced. This matters a lot when judging whether the programme is worth it. What the patient pays for is not only 16 sessions of treatment time but an intensive training process with 4 consecutive weeks of full commitment.

Clinical research data on LSVT BIG (UPDRS-III, TUG and walking speed)

The good news first, which is the real basis for the case for LSVT BIG: it does work, and not just according to the patient's own feeling, since it is backed by objective motor scores. The most representative study is the Berlin RCT carried out in Germany.

16 sessions × 60 min / 4 weeks
Structure of the standard LSVT BIG programme (4 consecutive days of training a week, plus daily home practice)
LSVT Global official treatment plan and the programme descriptions in Ebersbach 2010 / Janssens 2014
UPDRS-III −5.05 points
Average improvement in motor score in the LSVT BIG group in the Berlin RCT (the walking group was +0.58 and the home exercise group +1.68, both worse)
Ebersbach 2010 (n=60, mild to moderate patients)
−3.20 points (95% CI −5.18 to −1.23)
Pooled UPDRS-III improvement across 4 studies (including 3 RCTs, 84 patients with mild disease in total)
McDonnell 2018 systematic review, whose authors rated these data as preliminary, moderate-quality evidence

In the Berlin RCT (Ebersbach 2010), the LSVT BIG group not only improved clearly in motor score but also did better in the TUG (Timed Up and Go test) and 10-metre walking speed than both control groups, Nordic walking and unsupervised home exercise. In fact the motor scores of those two control groups even got slightly worse. The meta-analysis published in 2018 (McDonnell 2018) pooled 4 studies and found an average UPDRS-III improvement of about 3.2 points, pointing the same way. In other words, that LSVT BIG has a clinical effect is an established objective fact and is beyond doubt.

How large the improvement from LSVT BIG really is

The key point to state plainly, however, is that "having a clinical effect" and "the disease being dramatically reversed" are two completely different things. To judge how large a 5-point or 3-point score improvement is, it has to be compared with a clinical benchmark: the minimal clinically important difference (MCID) of the MDS-UPDRS motor examination.

MCID about −3.25 points
Threshold at which the MDS-UPDRS-III shows the smallest meaningful improvement (the smallest meaningful worsening is +4.63 points)
Horváth 2015, the clinical reference standard for judging the size of an improvement
−5 to −3 points
UPDRS-III improvement from LSVT BIG across studies, about at or slightly above the MCID threshold
Pooled data from Ebersbach 2010 / McDonnell 2018

Set side by side, the conclusion is quite clear. The effect size of LSVT BIG is roughly around the threshold of the "smallest meaningful improvement" or slightly above it. It is a "moderate improvement that patients can feel and that is worth taking part in", shown as bigger movements, smoother standing up and walking, and faster TUG time and walking speed. But it is by no means a return to the state before the illness, and it cannot change the degenerative course of Parkinson's disease itself.It is a functional therapy that helps the patient "make movements a bit bigger, reduce the risk of falls and improve self-care in daily life", and not a cure. With this reasonable expectation set beforehand, there will be no disappointment from a gap between hope and result.

Unpicking the core myth (debunk): is there really an extra advantage over "ordinary big-movement exercise"?

This is the core myth-busting part of the article. Since LSVT BIG has been shown to work, does its benefit come from the "LSVT BIG brand and patented programme" itself, or from the general training principles of "high intensity, high amplitude and intensive continuation"? The three comparison studies below give a fairly consistent answer.

−6.6 vs −5.7 points
Standard LSVT BIG compared with a shorter big-movement programme (AOT-SP): UPDRS-III improvement at week 16 was about the same, and LSVT BIG was only better in the patients' subjective impression
Ebersbach 2015 (n=42, p<0.001)
Objective TUG the same in both groups
In a remote RCT, LSVT BIG and structured walking training showed no difference in objective TUG improvement (−2.0 vs −3.2 seconds), and its advantage appeared only in patient self-rating and non-blinded scoring
Kaya Aytutuldu 2024 (p=0.249)

First, the Ebersbach 2015 study compared standard LSVT BIG directly with another, shorter programme that also follows the big-movement principle (AOT-SP). By week 16, the improvement in the objective UPDRS-III motor score in the two groups was in fact similar, and LSVT BIG mainly won on "the patient's subjective impression". Second, the remote RCT by Kaya Aytutuldu 2024 compared LSVT BIG with structured progressive walking training. The two groups did equally well on the objective TUG test, and the advantage of LSVT BIG showed only in self-rated scales and non-blinded scoring (which is easily influenced by expectations). Third, the large Cochrane systematic review (Tomlinson 2013, covering 39 RCTs and 1,827 people) also states clearly that physiotherapy does benefit patients compared with no intervention at all, but there is no evidence that any one physiotherapy approach is particularly better than the others.

The objective benefit of LSVT BIG is not unique to it. The principle of "high intensity, deliberate enlargement and intensive continuation" is what really works. What it wins on beyond that is mostly the patient's subjective feeling.
The shared message of the three comparison studies

Discussing whether the programme is worth it is not a way of rejecting LSVT BIG. It is a training programme that combines the above exercise principles very well, is easy to follow and has a rigorous guidance structure. For patients who need clear training steps and close supervision from a therapist, it is genuinely helpful. However, if it is hard to find a certified therapist in Hong Kong, or the rehabilitation budget is limited, high-intensity big-movement training designed on the same principles by a trained physiotherapist is also a reasonable alternative for improving objective motor performance. Families and patients do not need to worry that there will be no effect at all just because the original programme cannot be done.

Patients who suit LSVT BIG

Whether the programme is worth it depends greatly on the patient's own condition. Almost all of the positive results in existing clinical research are concentrated in the same group, patients at an early to middle stage, with enough cognitive ability, who can walk independently. The table below sets out who benefits most and which situations need thought beforehand.

Better value (most worth doing)
  • Early to middle stage (Hoehn & Yahr stages 1–3), where the research evidence is concentrated
  • Enough cognitive ability (can understand and carry out high-intensity cues) and can walk independently
  • Willing to train on several consecutive days a week and practise at home daily, and able to keep up the 4-week intensive rhythm
  • Wants to see clearly bigger and better movement amplitude, getting up, turning and gait in a short time
Discuss with the doctor or therapist first
  • Late stage (H&Y 3.5 or above): existing evidence is insufficient and the same results may not be reached
  • Severe cognitive impairment, making it hard to follow intensive, high-intensity cues
  • Severe heart, lung or orthopaedic problems that make high-intensity exercise risky
  • Unable to keep to the 4-week intensive rhythm: the effect depends on intensity, and breaks reduce it
Best suited to Hoehn & Yahr stages 1–3
The research data are mainly in patients at an early to middle stage, with enough cognition (MoCA ≥21) who can walk on their own. The evidence for late-stage patients (≥3.5) is not yet sufficient
Pooled from the entry criteria of the LSVT BIG RCTs (Eldemir 2024 and others)
Modified or sparser programmes also work
Whether the standard version (4 sessions a week) or the modified version (2 clinic sessions plus 2 home practice sessions), both groups showed clear clinical improvement in balance, walking speed and motor symptoms
Eldemir 2024 (standard group n=8 vs modified group n=8)

The results of Eldemir 2024 are especially worth learning from: for patients who find it hard to keep up with intensive clinic attendance, a modified programme of 2 clinic sessions plus 2 home practice sessions can also bring significant clinical improvement, and the standard group had a slight edge only in a few specific measures (such as keeping balance on a firm surface with eyes open, and gait symmetry). In other words, "being unable to cope with the full standard version" does not mean "being unable to benefit from big-movement training at all". Patients and families can talk to a therapist who provides a home rehabilitation service about tailoring a training pattern that fits their strength and time.

Points to note when looking for LSVT BIG in Hong Kong: certification, fees and home training

Anyone planning to receive LSVT BIG training in Hong Kong should first understand the following local realities.

Must be delivered by a certified therapistA formal LSVT BIG programme must be delivered by a physiotherapist or occupational therapist holding official LSVT Global certification (the therapist must pass an assessment and renew the certification every 2 years). There are currently not many therapists in Hong Kong with valid certification. Some rehabilitation organisations offer ordinary exercise training that draws on the "big movement / amplitude principle" and not the formal LSVT BIG programme. When enquiring, families are best to ask the organisation directly whether the therapist holds valid certification and whether the whole programme strictly follows the standard 16-session format.
The fee is a considerable expensePrivate physiotherapy in Hong Kong is about HK$1,000–1,900 an hour, and a full 16-session programme adds up to a lot. A home visit service (for example Nova Health at HK$1,000 for 1 hour and HK$1,300 for 1.5 hours) saves the travel to and from a clinic and the effort of getting there, which is especially practical for patients with limited mobility.
Public hospital waiting times and the intensive windowWaiting times for physiotherapy in public hospitals are usually fairly long. But the effect of LSVT BIG depends greatly on whether the patient can train intensively and continuously within 4 weeks, together with daily home practice, and delaying or practising on and off weakens the effect. For those who want to start intensive training as soon as possible, private organisations or home physiotherapy are more flexible.
Local patient support resourcesLocal organisations such as the Hong Kong Parkinson's Disease Association (HKPDA), the Hong Kong Movement Disorders Society (HKMDS), the Hong Kong Parkinson's Disease Foundation (香港柏金遜症基金, HKPDF), and the "柏動愛" programme under the Hong Kong Society for Rehabilitation provide patient education and community support. Patients and families can first ask these organisations about the different therapies and seek referrals.
About 12,000 patients in Hong Kong
Estimated total number of people with Parkinson's disease based on local media reports. The average age at onset is 60–70, and the number is expected to rise by 5–10% a year as the population ages
CUHK Medical Centre (citing local research data) / Hong Kong Society for Rehabilitation
Certification renewed every 2 years
Therapists delivering LSVT BIG must complete official LSVT Global certification and renew it regularly. There are not many certified therapists in Hong Kong at present, so it is best to ask first when booking
LSVT Global official certification rules

Other training options besides LSVT BIG

If it is hard to find a certified therapist, or the rehabilitation budget and the patient's strength are limited, this by no means means giving up big-movement training. According to the clinical evidence cited in the myth-busting section above, the objective motor benefit comes mainly from the training principles and not from a single brand, and the following are all practical directions for rehabilitation.

  • A trained physiotherapist designs high-intensity, large-amplitude functional training for the patient's situation, using the core principles of LSVT BIG.
  • A modified or lower-density programme following the Eldemir 2024 model, combining clinic training with home practice, which especially suits patients who find it hard to attend follow-up often.
  • The patient keeps doing big-movement practice at home every day, turning the enlarged movement amplitude into a daily habit. Whether the patient can keep it up over the long term matters more than which brand of therapy is used.
  • Adding flexibility, posture correction and trunk rotation training (see the flexibility training page for details) to ease stiffness and improve a stooped posture.
  • Do not, in a hurry to reverse the disease, raise the exercise intensity blindly without guidance. Before starting any training programme, heart and lung function and fall risk should be assessed by a professional.

The result of one case study should also be noted: the Janssens 2014 study (3 patients with mild to moderate disease who completed 16 sessions) found that big-movement training improved the patients' gait, balance and turning in bed, but the dexterity of their dominant hand did not improve at all. This shows again that LSVT BIG is not a cure-all for every problem of decline. Its effect has a particular scope, and the authors of that study also stressed that more large RCTs are needed to confirm it. Telling objectively which abilities may improve and which may not is the practical attitude to rehabilitation.

Summary: decide according to stage of illness, rehabilitation goals and practical burden

Back to the core question at the start of the article. Is LSVT BIG really worth the money? The objective and plain conclusion is as follows.

If the patient is at an early to middle stage, has enough cognition and is willing to train intensively
It is worth taking part. What the patient pays for is a well-structured, research-supported programme that is easy to follow and has close supervision from a therapist. It can help the patient enlarge movement amplitude and improve daily activity in a short time, which is good value.
If no certified therapist can be found or the budget is limited
There is no need to insist on the original programme. If a trained therapist designs the training on the same high-intensity big-movement principles, the objective motor benefit is much the same. The key to success is whether the training principles are followed in full and kept up, not the brand name of the programme.
If the hope is that it will reverse the disease or be a one-off fix
Expectations need adjusting first. The clinical improvement from this therapy is in fact moderate and is not a dramatic reversal, and Parkinson's disease itself will still slowly progress. What really has value is therefore not only the 4 weeks of intensive sessions but whether the patient can keep up the big-movement habit over the long term afterwards.
If the patient is at a late stage or finds it hard to keep up the intensive rhythm
The value for money is relatively lower. It is advisable to talk first to the treating doctor or physiotherapist and consider a modified version or another rehabilitation plan that suits the present situation, and not to force through the full 16 sessions of high-intensity training.

Frequently asked questions

Is there really a difference between LSVT BIG and doing big-movement exercises at home? Is it worth paying for a therapist?
There is a difference, but it is not as large as it is often advertised. Research (Ebersbach 2010) did show that formal LSVT BIG improved the UPDRS-III motor score clearly more than unsupervised home exercise (which even got slightly worse). However, this gap comes mainly from three elements: high-intensity training, deliberately enlarged movement amplitude, and 4 solid weeks of intensive practice. It does not come from some magic in the "LSVT BIG" brand itself. Later studies (Ebersbach 2015, Kaya Aytutuldu 2024) found that, as long as the same big-movement principle is followed under a trained therapist, a shorter programme or one with a different name gives about the same improvement on objective motor tests. What the fee really buys is therefore the structured guidance of a therapist supervising the patient to make movements big, use enough effort, keep correct posture and keep going, and not simply a brand name. The biggest blind spot of practising blindly at home is that Parkinson's disease itself makes patients underestimate how big their movements are (they feel they are moving, but the actual amplitude is tiny), and without someone to correct this it is hard to get results.
After 16 sessions of LSVT BIG, will there be a big improvement? How large is the effect?
To be plain: it does work, but it is not a dramatic reversal. In the most representative study, the Berlin study, patients' UPDRS-III motor score improved by about 5 points on average, and a 2018 meta-analysis pooling 4 studies showed an average improvement of about 3.2 points. This is roughly the threshold of the "minimal meaningful improvement" in clinical practice (about 3 points or more), a "moderate improvement that patients can feel for themselves", such as bigger movements, smoother standing up and walking than before, and better TUG (Timed Up and Go test) and walking speed. But it is by no means a return to the state before the illness, and it cannot reverse the course of the disease itself. Parkinson's disease is degenerative, and the role of LSVT BIG is as a functional therapy that helps the patient "make movements a bit bigger, reduce falls and improve self-care in daily life", not as a way to cure the disease. Setting reasonable expectations of the benefit beforehand avoids disappointment.
Is this expensive 4-week intensive programme worth doing for everyone? Which patients suit it best?
The patients who benefit most are those at an early to middle stage (Hoehn & Yahr stages 1–3) with intact cognition, who can walk independently and are willing to take part in several consecutive days of training a week as well as practise at home every day. Almost all of the positive results in existing research come from this group. If the disease is at this stage and the aim is to see clear gains in movement amplitude and gait in a short time, the value for money of this programme is quite high. By contrast, situations that are less suitable or need detailed discussion with the doctor and therapist first include: late-stage patients (H&Y 3.5 or above, where there is currently not enough evidence and the same results may not be reached); severe cognitive impairment, or severe heart, lung or orthopaedic disease that makes high-intensity exercise unsafe; or being unable to keep to the 4 consecutive weeks of intensive rhythm at all (the benefit depends heavily on intensity, and practising on and off greatly reduces the effect). Whether to take part should therefore be weighed according to the individual's stage of illness, rehabilitation goals and life commitments, and it does not suit everyone.
Where can formal LSVT BIG be found in Hong Kong? How much does it differ in cost from ordinary physiotherapy?
Note that "formal LSVT BIG" must be delivered by a physiotherapist or occupational therapist certified by LSVT Global (the therapist must pass an assessment and renew the certification every two years), and the number of certified therapists in Hong Kong is limited. Some organisations offer training based on the "big movement / amplitude principle" and not formal LSVT BIG. The two are close in principle and the results can be similar, but when enquiring it is best to ask directly whether the therapist holds LSVT BIG certification and whether the programme follows the 16-session standard in full. On cost, private physiotherapy in Hong Kong is about HK$1,000–1,900 an hour, so a full 16-session programme is a considerable expense. A home visit service (for example Nova Health at HK$1,000 for 1 hour and HK$1,300 for 1.5 hours) saves travel to and from a clinic and the effort of getting there, which is especially practical for patients with limited mobility. Waiting times for physiotherapy in public hospitals are longer, and the benefit of LSVT BIG depends precisely on intensive continuous training within 4 weeks, so private or home visit services are an option for those who want to start soon.
What does the "recalibration" principle of LSVT BIG mean? Is there scientific basis for it?
People with Parkinson's disease face a core difficulty: the brain "underestimates" the amplitude of their own movements. The actual movement is tiny, but the patient feels it is enough, which leads to short steps, ever smaller handwriting and stiff standing-up movements. LSVT BIG responds by asking the patient to deliberately make whole-body movements that are "so exaggerated that even the patient feels they are too big". With repeated practice, the brain gradually recalibrates its sense of what amplitude counts as normal (medically called proprioceptive recalibration). This is not just an advertising slogan. A study (Peterka 2020) measured this with a pointing task and showed that patients' proprioceptive error did decrease after the programme, giving physiological support for the therapy. The principle behind it therefore has a basis, but note that the sample in that study was small and the evidence is only preliminary. The final goal of training is always to bring this enlarged movement pattern into daily life and keep it up over the long term.
How long does the benefit last after the programme ends? Does training need to continue?
LSVT BIG is designed so that "big movement" becomes the patient's natural habit, and some research also shows that patients keep a certain level of improvement for weeks to months after the programme ends. However, Parkinson's disease is a continuing degenerative illness, and the benefit of any exercise therapy fades over time as the disease progresses, so it should never be seen as a one-off fix after 16 sessions. The more practical approach is to keep doing big-movement practice at home every day after the intensive programme, and to have the therapist review and fine-tune the movements regularly (for example every few months) and give "booster" training when needed. In other words, the real value lies not only in the 4 weeks of the programme but in whether the patient can keep applying the big-movement principle over the long term, which is what decides the long-term result.

Disclaimer: This article is general health information and is not professional medical advice. If you have any health concerns, please consult a qualified healthcare professional.

References

  1. Ebersbach, G., Ebersbach, A., Edler, D., Kaufhold, O., Kusch, M., Kupsch, A., & Wissel, J. (2010). Comparing exercise in Parkinson's disease—the Berlin LSVT®BIG study. Movement Disorders, 25(12), 1902–1908. PMID: 20669294 / DOI: 10.1002/mds.23212
  2. McDonnell, M. N., Rischbieth, B., Schammer, T. T., Seaforth, C., Shaw, A. J., & Phillips, A. C. (2018). Lee Silverman Voice Treatment (LSVT)-BIG to improve motor function in people with Parkinson's disease: a systematic review and meta-analysis. Clinical Rehabilitation, 32(5), 607–618. PMID: 28980476 / DOI: 10.1177/0269215517734385
  3. Ebersbach, G., Grust, U., Ebersbach, A., Wegner, B., Gandor, F., & Kühn, A. A. (2015). Amplitude-oriented exercise in Parkinson's disease: a randomized study comparing LSVT-BIG and a short training protocol. Journal of Neural Transmission (Vienna), 122(2), 253–256. PMID: 24872078 / DOI: 10.1007/s00702-014-1245-8
  4. Kaya Aytutuldu, G., Ersoz Huseyinsinoglu, B., Karagoz Sakalli, N., et al. (2024). LSVT® BIG versus progressive structured mobility training through synchronous telerehabilitation in Parkinson's disease: A randomized controlled trial. Neurological Sciences, 45(7), 3163–3172. PMID: 38267603 / DOI: 10.1007/s10072-024-07322-0
  5. Peterka, M., Odorfer, T., Schwab, M., Volkmann, J., & Zeller, D. (2020). LSVT-BIG therapy in Parkinson's disease: physiological evidence for proprioceptive recalibration. BMC Neurology, 20, 276. PMID: 32652957 / DOI: 10.1186/s12883-020-01858-2
  6. Janssens, J., Malfroid, K., Nyffeler, T., Bohlhalter, S., & Vanbellingen, T. (2014). Application of LSVT BIG intervention to address gait, balance, bed mobility, and dexterity in people with Parkinson disease: a case series. Physical Therapy, 94(7), 1014–1023. PMID: 24557655 / DOI: 10.2522/ptj.20130232
  7. Eldemir, S., Eldemir, K., Saygili, F., Ozkul, C., Yilmaz, R., Akbostancı, M. C., & Guclu-Gunduz, A. (2024). The effects of standard and modified LSVT BIG therapy protocols on balance and gait in Parkinson's disease: A randomized controlled trial. Brain and Behavior, 14(3), e3458. PMID: 38451007 / DOI: 10.1002/brb3.3458
  8. Tomlinson, C. L., Patel, S., Meek, C., Herd, C. P., Clarke, C. E., Stowe, R., Shah, L., Sackley, C. M., Deane, K. H., Wheatley, K., & Ives, N. (2013). Physiotherapy versus placebo or no intervention in Parkinson's disease. Cochrane Database of Systematic Reviews, 2013(9), CD002817. PMID: 24018704 / DOI: 10.1002/14651858.CD002817.pub4
  9. Horváth, K., Aschermann, Z., Ács, P., Deli, G., Janszky, J., Komoly, S., Balázs, É., Takács, K., Karádi, K., & Kovács, N. (2015). Minimal clinically important difference on the Motor Examination part of MDS-UPDRS. Parkinsonism & Related Disorders, 21(12), 1421–1426. PMID: 26578041 / DOI: 10.1016/j.parkreldis.2015.10.006
  10. CUHK Medical Centre (citing local research) / Hong Kong Society for Rehabilitation: estimates of the number of people with Parkinson's disease in Hong Kong and age at onset (local media estimate, not an academic statement). https://www.cuhkmc.hk/ / https://www.rehabsociety.org.hk/