In rehabilitation, most of the time, the success of physiotherapy programs is reliant on patients undertaking specific exercises at home. Indeed lots of clinical guidelines for musculoskeletal disorders recommend the use of exercises program for specific pathologies [e.g. neck pain ( 1 ), osteoarthritis ( 2 )] but also for chronic pain ( 3 ). A prerequisite for the success of these exercises is, of course, the correct realization of those one. Therefore the adherence to home exercises defined as “the extent to which a person’s behavior corresponds with agreed recommendations from a healthcare provider” ( 4 ) is a major point for the success of the rehabilitation. The problem of non-adherence to treatment does not only concern home exercises but also the rehabilitation session with the physiotherapist; according the various studies it is indeed estimated that only between 44% and 85% of the patients completed the full course of physiotherapy ( 5 , 6 ). Although some scales have been developed to assess adherence to home-based rehabilitation exercises, it appears that it is difficult to get reliable results about patients’ adherence ( 7 ). There are quite variable numbers found in the literature ranging from 13% ( 8 ) up to 40 to 60% ( 7 – 9 ) of non-adherence rate. In practice patients have, most of the time, a set of exercises that they have to perform regularly (the frequency is depending on the severity of the disease). Patients are considered as non-adherent if they do not perform any of these exercises and adherent if they fully achieved it ( 7 ).

Actually this dualistic approach is too restrictive and a distinction must be performed between non-adherent, partially adherent and highly adherent ( 10 ). These authors found that 35% were highly adherent, 41% partially adherent and the 24% remaining non-adherent ( 10 ). There is still, currently, a lack of information about percentage of adherence to treatment and especially the amount of exercises that are really performed by the patients. Therefore the aim of this paper was to quantify the participation of patients during at-home exercises but also and to understand why patients are not performing these exercises, which are nevertheless a major component of the rehabilitation, and discuss some perspectives to increase the patients’ motivation and participation.

All results are presented in Table-2. For the question about adherence to treatment (question 3 in table-2) the mean percentage was 33 (30) % of performing the right amount of repetitions and duration when patients performed partially all their exercises. The total percentage of the participation rate is 48%.

Prior to discuss of the participation of patients in home exercises the first thing to verify is whether or not physiotherapists prescribe and recommend exercises to their patients. The majority of the patients (74%) included in this study consulted physiotherapists for orthopedic disorders. Guidelines of physiotherapy and manual therapy for both acute and chronic pain ( 1 – 3 ) recommend the prescription of exercises to be performed at-home. Despite these recommendations it appears that 14% of the patients did not receive any exercises to do at home. No difference in term of prescription of exercises was found between the different specialties of physiotherapy.

Concerning the realization rate of these exercises by patients results of this study are in the same range of magnitude as those found in previous study ( 10 ). These authors found that 35% of the patients were highly adherent, 41% partially adherent and the 24% remaining non-adherent, our results indicate 29% of total adherence, 54% of partially and 17% of the patients that do not performed any of their exercises at-home. In the aforementioned study no information was given about the notion of partially adherent. We quantify this notion, patients that performed partially their exercises estimate that they only make about one third (33%) of the total amount of exercises recommended by physiotherapist. The total percentage of participation (taking into account the totally and the not at all adherent patients) is about the half (48%) of the prescribed exercises.

In our study we do not specify the duration of exercises while some authors did a distinction between short-term and long-term compliance ( 11 ). Without surprise the participation rate is less and less important the longer is the treatment. The authors observed a decrease of 30 to 50% of the participation within the first 12 months and between 45 and 80% within 48 months ( 11 ). It is interesting to note that the same percentages are observed with patients undergoing clinical research protocol ( 9 ) or retrospective study ( 7 – 11 ). This can affect negatively results of the treatment of chronic disease but it will also induce an increase of risk of relapse since some of these exercises are given to patients as a preventive measure ( 12 ).

In order to try to find solution to this problem an important point is to understand why patients do not performed the exercises. There is no trend that clearly emerges between a lack of time (28%), the boring aspect of exercises (25%) or simply due to the fact that patients forgot to do the exercises (24%). About one fifth (19%) of the patients do not remember how to correctly realize the exercises this highlights the fact that patients’ education and training is a prerequisite for the success of such kind of intervention. Luckily only one out of ten (10%) patient felt that exercises are useless. Actually except for these patients and for patients that do not have time (or find time) to perform their exercises (38% of sample) solutions currently exist or are in development to address these problems.

One of the potential negative aspect of at-home exercises is that the exercises are by definition not supervised by a healthcare specialist. In this case therapist cannot be sure that patients are performing the exercises and patients are not sure to perform them correctly. In the worst case scenario if patients do not performed the exercises in the right way (e.g. compensatory motion, wrong posture…) some counter-productive effect can even be achieved. Therefore patients are demanding for solutions allowing them to receive instruction on how to correctly realize the exercises and remind them when and how much they have to perform them (23% want to receive video instructions and 18% by text). Since a few years affordable devices (e.g. gyroscopes and accelerometers, gloves with sensors, Kinect™ sensor) are available to track specific motions and monitor follow up of the patients. About one third (30%) of the patients are requesting such kind of solution to track motions and be sure that there are correctly done. These solutions also offer more opportunity to motivate patients. Indeed the therapeutic exercises are often considered boring by patients, in order to tackle this aspect a new trend in rehabilitation is to “hide” these exercises within serious games (also called exergames) to simulate patients to do them. 20% of the patients are asking for such kind of solutions, therefore development of this new branch of physical rehabilitation should be encouraged since it appears that it can induce increase motivation of patients suffering from various diseases such as brain stroke ( 13 ), cerebral palsy ( 14 ) of for elderly people ( 15 ).

A recent Cochrane review on interventions to improve adherence to exercises studied different ways of delivering exercises on patients’ adherence ( 16 ). Main findings of this study is that supervised exercise was found to be more effective than unsupervised/home exercise at increasing exercise adherence and the accuracy of exercise performance (ie the extent to which participants perform the exercises correctly) and adherence may be improved by refresher or follow-up sessions and supplementing face-to-face instruction with other material such as an audiotape or videotape of the exercises ( 16 ). It appears thus that tele monitoring and telerehabilitation techniques could be an interesting solution to increase adherence and to increase the quality of these exercises and therefore in fine enhance the rehabilitation process. At-home exercises remain an issue in physiotherapy. Clinicians should be aware of the low participation of the patients. Indeed only 50% of the recommended exercises are really performed by the patients. However, at-home exercises are a key pieces of physical rehabilitation. Yet solution exist to increase patients participations from simple one (written instruction) to more complex one (automatic reminder with video instruction). Another challenge is to be sure that patients correctly performed their exercises. Thanks to the evolution of technology some system are developed to monitor patients at-home and provide them live feedback during the rehabilitation exercises, such kind of system seems to be well accepted by users. This could be a solution to reassure patients by correcting the realization of exercises and therapist who could control what the patients is really doing at-home.