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Research ArticleProgram Description

The CHANGE program

Exercise intervention in primary care

Doug Klein, Khursheed Jeejeebhoy, Angelo Tremblay, Matthew Kallio, Caroline Rheaume, Serena Humphries, Dawna Royall, Paula Brauer, Daren Heyland, Rupinder Dhaliwal and David M. Mutch
Canadian Family Physician July 2017; 63 (7) 546-552;
Doug Klein
Associate Professor and Director of the CHANGE Alberta research group in the Department of Family Medicine at the University of Alberta in Edmonton.
MD MSc CCFP
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  • For correspondence: Doug.klein@ualberta.ca
Khursheed Jeejeebhoy
Gastroenterologist at St Michael’s Hospital in Toronto, Ont, and Professor of Medicine in the Faculty of Medicine at the University of Toronto.
MD PhD
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Angelo Tremblay
Academic kinesiologist in the Department of Social and Preventive Medicine at Laval University in Quebec.
PhD
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Matthew Kallio
Kinesiologist with CHANGE Alberta.
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Caroline Rheaume
Family physician in Laval and Assistant Professor and a clinical researcher in the Department of Family and Emergency Medicine at Laval University.
MD PhD CCFP
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Serena Humphries
Research associate in the Department of Family Medicine at the University of Alberta.
PhD
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Dawna Royall
Academic dietitian working with Nutrition Research Consulting in Fergus, Ont.
MSc RD
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Paula Brauer
Academic dietitian in the Department of Family Relations and Applied Nutrition at the University of Guelph in Ontario.
PhD RD
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Daren Heyland
Professor of Medicine and Epidemiology in the Department of Critical Care Medicine at Queen’s University in Kingston, Ont.
MD MSc FRCPC
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Rupinder Dhaliwal
Director of Operations for Metabolic Syndrome Canada.
RD
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David M. Mutch
Associate Professor in the Department of Human Health and Nutritional Sciences at the University of Guelph.
PhD
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Abstract

Problem addressed Primary care settings require a feasible program for integrating lifestyle interventions, which can reverse metabolic abnormalities, for patients in practice.

Objective of program To integrate a lifestyle intervention program into existing primary care clinics with an interprofessional approach that includes dietitians and kinesiologists.

Program description Canadian Health Advanced by Nutrition and Graded Exercise (CHANGE) provides a personalized approach to nutrition and exercise modification focusing on patients with metabolic syndrome. With CHANGE, exercise intervention is individualized (ie, tailored to individual preferences) and graded (ie, intensity is built up slowly over time); supervision and implementation of the program is conducted in a collaborative fashion between the family physician and the kinesiologist. Patients undergo an initial fitness assessment that determines their baseline aerobic, strength, and flexibility scores, and the same assessment is performed at 3 months and at 12 months.

Conclusion The CHANGE program demonstrates how interprofessional primary care teams can support patients with metabolic syndrome in achieving their health goals. By including dietitians and kinesiologists in primary care settings to work alongside family doctors, many barriers to lifestyle interventions can be overcome. The team’s collaborative understanding of the patient combined with the patient’s own sense of urgency for change creates the opportunity for the formation of new healthy lifestyle habits. Although results are preliminary, CHANGE appears to be a feasible, implementable, and effective program.

Hypertension, cardiovascular disease, stroke, diabetes, and their complications account for nearly 17% of all health care costs and 43% of all deaths.1 Metabolic syndrome (MetS) refers to a group of factors (abnormal cholesterol levels, elevated blood glucose levels, high blood pressure, and obesity) that increase the risk of these diseases. A patient is diagnosed with MetS if he or she has at least 3 of the following 5 conditions or is taking medications to control them: elevated blood pressure (≥ 130/85 mm Hg), high blood glucose levels (> 5.6 mmol/L), high triglyceride levels (> 1.7 mmol/L), low high-density lipoprotein cholesterol levels (< 1.0 mmol/L in men; < 1.3 mmol/L in women), and a large waist circumference (> 102 cm in men; > 88 cm in women).2 In Canada, 20% of the adult population has MetS,3 with the prevalence of MetS in Canadian adults aged 60 to 79 reaching 39%.3 Central obesity and other metabolic risk factors that lead to MetS are prevalent among older adults.4 Metabolic syndrome doubles the risk of cardiovascular disease.2 People with MetS have been shown to have double the annual health care costs and tend to use services more frequently than those without MetS.5,6 The high prevalence of MetS, along with the aging of the population,7 forecasts an enormous financial burden for health systems, patients, and families.8,9

Progression of MetS to diabetes and cardiovascular disease can be considerably reduced by dietary modification and exercise.10–12 The combined diet and exercise approach, better known as lifestyle intervention, has been demonstrated in clinical trials to reverse metabolic abnormalities, reduce reliance on pharmacotherapy, and prevent progression to diabetes and cardiovascular disease.12–15 A 2012 meta-analysis reported that lifestyle interventions of diet and exercise are effective in resolving MetS and reducing the severity of its related abnormalities.16 Several other clinical trials have supported lifestyle interventions in reversing MetS and its complications, including in older adults.17,18

Despite the evidence showing that lifestyle interventions could substantially reduce the costs and complications of these medical conditions,19–22 delivery of these preventive care services in primary care remains low.23 In a recent national survey in primary care, less than half of family doctors reported discussing obesity and physical activity with their patients during their periodic health examinations, with counseling on lifestyle modifications limited by time and remuneration structure.23 In addition, reasons for the poor implementation of lifestyle interventions in primary care include lack of time, lack of resources, and limited training.24–27 Thus, while lifestyle interventions have been shown to be efficacious in the research setting, the resources and the personnel to implement these preventive care services in primary care are lacking, resulting in the focus of treatment being pharmaceutical rather than behavioural. Current gaps in the literature exist regarding the effective implementation of lifestyle interventions in primary care. Research addressing the feasibility, effectiveness, and efficiency in the primary care context is required to promote widespread adoption.

Canadian Health Advanced by Nutrition and Graded Exercise (CHANGE) is an interprofessional approach to integrating lifestyle interventions into existing primary care clinics. By including dietitians and kinesiologists in primary care settings to work alongside family doctors, many barriers to lifestyle interventions can be overcome. Previous studies have reported on the effectiveness of individualized, supervised exercise28 and strength29 and resistance training30 to improve health, with a paucity of evidence on how to effectively implement such interventions in the primary care setting. The purpose of this article is to describe the CHANGE program, along with the evidence supporting its components, and to present preliminary findings from the evaluation of the program. Final results will be reported in the future. The description of the dietary intervention has been described elsewhere.31

Program description

The CHANGE program is a personalized approach to nutrition and exercise modification supported by an interprofessional team focusing on patients with MetS. The program’s principles related to exercise are as follows: exercise intervention will be individualized (ie, tailored to individual preferences) and graded (ie, intensity is built up slowly over time); and supervision and implementation of the program will be conducted in a collaborative fashion between the family physician and kinesiologist. Patients undergo an initial fitness assessment that determines their baseline aerobic, strength, and flexibility scores (Figure 1). The same assessment is performed at 3 months and at 12 months. Patients’ aerobic fitness is assessed by a methodology described by Ebbeling et al to estimate maximal oxygen consumption.32 The technical details of this test are described by the Canadian Society for Exercise Physiology.33 Beyond the preoccupation to have a marker of maximal aerobic power, the kinesiologist also obtains a standardized measure of the change in heart rate at a given workload before and after the program. The outcome variables used to evaluate effectiveness include heart rate, blood pressure, and perception of effort (Borg scale) at a reference treadmill speed, as well as maximal oxygen consumption. Muscular endurance and vigour is assessed by the number of partial curl-ups and the adapted push-up test performed in 1 minute.34 The flexibility test is the distance (cm) covered by a standardized trunk flexion.33

Figure 1.
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Figure 1.

Overview of the CHANGE exercise intervention

CHANGE—Canadian Health Advanced by Nutrition and Graded Exercise.

Following patients’ baseline fitness assessment, an individualized exercise program that addresses a series of factors to improve their health is designed for them. It is critical to emphasize that the fitness program is individualized. Factors to consider about the patient’s life include the following: Has the patient exercised before? What activities does the patient enjoy? Does the patient work part-time or full-time? Is the patient a single parent, divorced, or widowed? What is the patient’s health status? Where is the patient in terms of the stages of change (eg, precontemplation, contemplation, preparation, action, maintenance, or relapse)? The factors to consider are endless but the underlying principles are the same. Providers must understand what is important to each individual patient in order to assist him or her to develop a sense of urgency to make a lifestyle change. The kinesiologist sees patients weekly for the first 12 weeks and then every month continuing for a duration of 1 year. It is expected that within several weeks there will be a progression in exercise modalities, in accordance with the exercise tolerance of each individual patient. Table 1 presents an example of the typical progress a patient could achieve within the first 3 months of the program in terms of duration of exercise, intensity of exercise, diversity of exercise type, frequency of exercise, and number of repetitions.

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Table 1.

Typical progression of CHANGE exercise protocol: Progression from baseline to 3 months.

Throughout the intervention, the family doctor receives summaries of patients’ goals and achievements from the kinesiologist in order to reinforce the messaging and to help support patients in achieving their goals.

Evaluation

The CHANGE program has been successful in recruiting patients in Edmonton, Alta, Toronto, Ont, and Quebec city, Que. To date 307 patients with MetS have been recruited to the program by their family doctors. Table 2 shows the baseline demographic characteristics of the patients at the 3 CHANGE demonstration sites. Participation in the exercise components of the intervention is 96%. Preliminary results, based on data from the first 3 months of the intervention, have demonstrated that among those patients participating in the interdisciplinary, multi-component CHANGE program nearly 20% of them have reversed MetS after 3 months in the program. The presence of MetS is defined as a patient having at least 3 of the 5 criteria conditions for MetS. Reversal of MetS, therefore, is defined as going from having 3 or more of the criteria conditions to having less than 3 of the criteria conditions (ie, having normal values for the criteria conditions and not taking medications for those conditions). Preliminary data also show that participating patients have demonstrated considerable changes to fitness, strength, and flexibility scores (Table 3). Complete results of the 12-month intervention will report on the effectiveness and cost-effectiveness of the intervention. Successful implementation and preliminary positive findings suggest that this type of intervention is feasible.

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Table 2.

Baseline demographic characteristics from the CHANGE demonstration sites: (N = 307).

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Table 3.

Before-and-after exercise data from the CHANGE program (baseline to 3 mo)

Discussion

The success of the CHANGE program is built on relationships with patients and a collaborative interprofessional health care team. Having a shared understanding about required lifestyle changes and creating a sense of urgency to undertake lifestyle changes are of particular importance. Sharing an understanding with patients supports them in discovering what is important to them. The team can then nudge and guide patients, but patients are empowered to make their own choices and choose what they want to do. Second, patients must have a sense of urgency about and believe that there is an importance to implementing the lifestyle changes. The strong collaborative approach by a primary care–based interprofessional team provides patients with guidance and education about physical activities to improve their health; however, only a patient can determine whether or not it is important to incorporate these health-improving activities in his or her life. Telling someone to change his or her behaviour is often met with resistance, but asking a patient to communicate how he or she will implement the lifestyle change empowers the patient to make the decisions and create his or her personal urgency.35,36 When this occurs patients become interested in learning more about exercise and physical activity.

The individualized, graded exercise program can then be gradually built from the patient’s starting point, with progression of activities occurring each week. Exercise principles are applied to achieve optimal health and fitness benefits, which include specificity, overload, and recovery. During this period the kinesiologist continues to educate the patient while still referring to the understanding and urgency the patient communicated in earlier stages. Changes in frequency, duration, and intensity are implemented gradually into the exercise program, with the patients deciding when they are ready to increase exercise levels (Figure 1). In the CHANGE program, the kinesiologist and family doctor collaborate to challenge the patient to further his or her activity progress through encouragement and positive reinforcement, which is particularly important if the patient’s self-belief is low. Having the entire interprofessional team reinforcing the small achievements and the long-term goals, and supporting each individual patient in setting new SMART (specific, measurable, assignable, realistic, and time-related)37 goals helps build the patient’s momentum for the future.37 The use of SMART goals helps patients identify an area of improvement and create an action plan for measuring improvement and accountability.37 Patients consider the realistic nature of their goals and resources and establish a timeline for achieving results.37 Through SMART goal setting, the CHANGE program instils accountability in patients for their actions and provides supports for further improvements. Behaviour modification and readiness is critical, but only the individual patient can decide whether or not he or she wants to change. A key foundational principle of the CHANGE program is to let patients discover the importance of their lifestyle changes, let them develop a sense of urgency about implementing changes, and, most important, guide them so that they have the knowledge and skills to improve their own health.

The potential beneficial effects of lifestyle interventions on MetS have been demonstrated.16 The CHANGE program is built on the evidence-based principles of effective lifestyle interventions, including individualized goal setting, supervised and graded exercise, and a collaborative, team-based approach to care with a long-term connection with the team. The results achieved are owing to an interdisciplinary effort of multiple components including diet counseling, exercise, and closer follow-up visits with family doctors. Establishing the CHANGE program in family medicine clinics ensures the main support and motivator (ie, the family doctor) for lifestyle changes remains connected to the patient. The family doctor can continue to monitor the patient, recognize issues early, and recruit further support from the team if necessary beyond the duration of the intervention. The program has been designed to be generalizable to other primary care settings. It should be noted that the high participation rates at the demonstration sites indicate a high level of motivation. Considering that 20% of the adult population has MetS, it makes sense for primary care to focus on patients with higher motivation.

In Canada, the role of kinesiologists in primary care is evolving, with more health teams incorporating these health professionals into interprofessional primary care teams. A survey of 19 primary care networks (PCNs) in Alberta showed that there were approximately 30 kinesiologists working within these PCNS who supported lifestyle interventions. The number of kinesiologists per PCN varied from 0 to 4 (unpublished research). Currently, there are few studies published on exercise interventions that take place in primary care settings. A few previous studies have demonstrated the potential effect of exercise counseling by physicians in primary care but without the use of kinesiologists.38,39 Several studies have demonstrated the effects of including exercise specialists in settings other than primary care.34,40,41 Distinct from many of the exercise interventions in the literature, the CHANGE program is an interprofessional, primary care–based personalized approach to lifestyle change, focusing on supporting individual patients in making the program successful and new habits sustainable. Further evaluation of the effectiveness and cost-effectiveness of the CHANGE program is under way. Research is also being conducted to explore what types of primary care settings can implement a program like CHANGE successfully.

Conclusion

The CHANGE protocol is an evidence-based diet and exercise program designed for primary care. The relationship between the patient and his or her health care team is very important. A strong and collaborative understanding of the patient combined with the patient’s own sense of urgency for change creates the opportunity for the formation of new healthy lifestyle habits. A personalized exercise program with frequent and regular follow-up with the team supports the patient in achieving his or her health goals. Although results are preliminary, the CHANGE program appears to be feasible, implementable, and effective. Demonstrating hard clinical outcomes such as mortality and cardiovascular events will require a longitudinal trial. The initial evaluation of the CHANGE program will focus on surrogate measures including reversal of MetS and reduced cardiovascular risk.

Notes

EDITOR’S KEY POINTS

  • The Canadian Health Advanced by Nutrition and Graded Exercise (CHANGE) intervention is an evidence-based diet and exercise program designed for primary care. Focusing on patients with metabolic syndrome, CHANGE is built on the principles of effective lifestyle interventions, including individualized goal setting, supervised and graded exercise, and a collaborative, team-based approach to care. The results achieved are owing to an interdisciplinary effort with multiple components including diet counseling, exercise, and closer follow-up visits with family doctors.

  • With CHANGE, exercise principles are applied to achieve optimal health and fitness benefits, which include specificity, overload, and recovery. Patients receive guidance and education from the health care team.

  • Establishing CHANGE in family medicine clinics ensures the main support and motivator (ie, the family doctor) for lifestyle changes remains connected to the patient. The family doctor can continue to monitor the patient, recognize issues early, and recruit further support from the team if necessary. The program has been designed to be generalizable to other primary care settings.

POINTS DE REPÈRE DU RÉDACTEUR

  • Le programme CHANGE (Canadian Health Advanced by Nutrition and Graded Exercise) est un mode d’intervention basé sur des données probantes qui associe régime alimentaire et exercice pour des patients des soins primaires. Axé surtout sur des patients présentant un syndrome métabolique, il cherche à modifier certaines habitudes de vie de façon efficace, en proposant à chaque participant de se fixer les objectifs qui lui conviennent, en lui faisant faire des exercices progressifs sous supervision tout en lui assurant des soins de santé au sein d’une équipe de soignants. Les résultats sont obtenus grâce à une collaboration interdisciplinaire regroupant plusieurs éléments, y compris des conseils sur la nutrition, l’exercice, et un suivi plus étroit avec les médecins de famille.

  • Dans le programme CHANGE, on applique des principes de base de l’exercice, tels que la spécificité, la surcharge et la récupération, de manière à maximiser les avantages pour la condition physique et la santé. Les patients reçoivent aussi des conseils et de l’information de la part de membres de l’équipe de soins.

  • En instaurant le programme CHANGE dans une clinique de médecine familiale, on s’assure que la personne qui peut le mieux aider et motiver le patient à changer son mode de vie, c’est-à-dire son médecin de famille, sera toujours en contact avec lui. Ce médecin pourra suivre ses progrès, détecter d’éventuels problèmes et recourir à l’équipe de soins si nécessaire. Le programme a été conçu de façon à servir dans d’autres établissements de soins primaires.

Footnotes

  • This article has been peer reviewed.

  • Cet article a fait l’objet d’une révision par des pairs.

  • Contributors

    All authors contributed to the concept and design of the program; data gathering, analysis, and interpretation; and preparing the manuscript for submission.

  • Competing interests

    Dr Klein is a board member for Metabolic Syndrome Canada but he has not received any salary or payment for this position. He has also received a grant for program expansion and the reimbursement of travel cost for dissemination of the results of the research related to the CHANGE program.

  • Copyright© the College of Family Physicians of Canada

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Canadian Family Physician: 63 (7)
Canadian Family Physician
Vol. 63, Issue 7
1 Jul 2017
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The CHANGE program
Doug Klein, Khursheed Jeejeebhoy, Angelo Tremblay, Matthew Kallio, Caroline Rheaume, Serena Humphries, Dawna Royall, Paula Brauer, Daren Heyland, Rupinder Dhaliwal, David M. Mutch
Canadian Family Physician Jul 2017, 63 (7) 546-552;

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The CHANGE program
Doug Klein, Khursheed Jeejeebhoy, Angelo Tremblay, Matthew Kallio, Caroline Rheaume, Serena Humphries, Dawna Royall, Paula Brauer, Daren Heyland, Rupinder Dhaliwal, David M. Mutch
Canadian Family Physician Jul 2017, 63 (7) 546-552;
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