Six minutes walk test for individuals with schizophrenia

Validity and feasibility of four standardized aerobic fitness tests in patients with depression: A cross-sectional study

The objective of this study was to examine the validity and feasibility of four standardized aerobic fitness tests to either measure V˙ O2peak or to estimate V˙ O2max (e V˙ O2max) in patients with major depression disorder (MDD). To this end, all subjects (n = 43) performed one maximal cardiopulmonary exercise test with gas exchange measurement (CPET) on a bicycle ergometer. Additionally, three submaximal tests (Åstrand-Rhyming bicycle ergometer test [ART], Physical work capacity test [PWC], and 6-min walk test [6MWT]) were performed within two weeks in counterbalanced order. e V˙ O2max from the submaximal tests was compared to the measured V˙ O2peak from CPET using rANOVAs, Bland-Altman plots, and correlation analyses. Feasibility outcomes (e.g., perceived exertion, discomfort, pretest anxiety, etc.) were compared via rANOVAs. On group level, e V˙ O2max estimated submaximally via ART and PWC did not differ from the CPET-based V˙ O2peak, whereas there was a bias in the 6MWT, as differences of the means increased in participants with higher V˙ O2peak. During CPET, only 56% achieved a primary or secondary criterion of maximum (physiological) exertion. On the group level, V˙ O2peak and e V˙ O2max determined with the different tests showed a sufficient degree of agreement (r ≥ 0.54, ICCs≥0.66, p < 0.001), but on the individual level, marked differences occurred between CPET-based V˙ O2peak and e V˙ O2max. Three of four CRF tests (CPET, ART, PWC) proved to be feasible and could be integrated into everyday therapy and monitoring of patients with MDD as an estimate for improvement of aerobic fitness. For the exact measurement of V˙ O2peak, CPET remains the gold standard, also in patients with MDD.

Effect of an adapted physical activity program on stress, anxiety, depression in patients with schizophrenia: study protocol of a randomized-controlled trial

Physical activity (PA) is recommended to optimize well-functioning in people with schizophrenia. PA has been found to improve quality of life, general symptomatology, depression, anxiety and stress symptoms, global and social functioning. In PA research, most of the interventions are based on one-on-one interventions but there is poor information about group-based PA interventions. Using a randomized controlled, clinician-blinded trial, subjects are randomized into two arms: the PA group or control group. Our first objective is about to evaluate the effects of a multimodal 6 week collective PA intervention on depression, anxiety, and stress symptoms in people with schizophrenia. Our second objective is about to evaluate these effects on secondary outcomes especially smoking, well-being, physical fitness and on care utilization. All participants are evaluated before and after the 6 week intervention period, and only participants in the PA group are called in a follow-up interview 3 and 6 months after the intervention.Trial registration Individual Protection Committee of Ile-de-France II, n ID RCB: 2018- A00583-52. Registered on 8 April 2018.

Procedures and measurement properties of the 6-min step test: A systematic review with clinical recommendations

OBJECTIVE

To provide information regarding the procedures, safety, tolerability, and measurement properties of the 6-min step test.

DATA SOURCES

MEDLINE, EMBASE, CINAHL, and SPORTDiscus (from inception until January 2024).

REVIEW METHODS

Studies that examined adults with acute or chronic diseases, and outcomes related to procedures, safety, tolerability, or measurement properties of the 6-min step test were included. Outcome data were summarized and combined in meta-analyses. The quality of included studies was assessed by the Consensus-based Standards for the selection of health Measurement Instruments checklist, and the quality of evidence was determined according to the Grading of Recommendations Assessment, Development, and Evaluation system.

RESULTS

Fourteen studies, involving 847 participants, were included. All studies performed the 6-min step test in 6 min; however, some studies varied the step height and the use of upper limb support. The test appears to be safe and well tolerated by individuals. Moderate- to high-quality evidence demonstrated appropriate results for test-retest reliability (4 studies; Intraclass correlation coefficient 0.96; 95% CI 0.91-0.98; n = 125), criterion validity (4 studies; r = 0.53; 95% CI 0.30-0.71; n = 307), and construct validity (4 studies; r = 0.63; 95% CI 0.52-0.73; n = 233).

CONCLUSION

This review provides recommendations for applying the 6-min step test in clinical and research settings. No adverse events were reported, and the test appears to be well tolerated. Adequate results were found for test-retest reliability, criterion validity, and construct validity.

REVIEW REGISTRATION

PROSPERO (CRD42022347744).

The correlates and reference values for the 6-minute walk distance in Taiwanese adults with schizophrenia

PURPOSE

The study aimed to identify the factors associated with the 6-min walk distance (6MWD) and to provide reference values for the 6MWD in individuals with schizophrenia (SCZ) in Taiwan.

METHODS

A proportional stratified sampling method was utilized based on distribution of gender, age and body mass index (BMI) at the study hospital. The 6-minute walk test was conducted according to the American Thoracic Society protocol.

RESULTS

A total of 237 patients with SCZ completed the 6-minute walk test. The 6MWD was significantly associated with age, height, weight, and length of the onset of SCZ. Stepwise linear regression revealed that height and age were significant determinants of 6MWD. The reference values for males and females at different age groups were determined. Notably, females over 60 walked substantially shorter than the age younger than 60.

CONCLUSIONS

Height and age were the main predictors for 6MWD among people with SCZ in Taiwan. The established reference values can be used to identify those at risk of poor cardiorespiratory fitness and as a target outcome during exercise programs in psychiatric rehabilitation. Our results highlight that older females with SCZ may be a priority group to target with exercise interventions to mitigate the faster decline in cardiorespiratory fitness.IMPLICATIONS FOR REHABILITATIONHeight and age were predictors of 6-min walk distance (6MWD) in schizophrenia (SCZ).The established age- and gender reference values for the 6MWD can be used to identify those at risk of poor cardiorespiratory fitness.Females with SCZ over age 60 may be a priority group to target with exercise interventions to mitigate the faster decline in cardiorespiratory fitness.

Physical Therapy and Mental Health: A Scoping Review

OBJECTIVES

Coexistence of mental and physical health conditions is prevalent. To achieve optimal physical therapy outcomes, neither should be treated in isolation. This review aimed to map intersections between physical therapy and mental health.

METHODS

This was a scoping review searching MEDLINE, CINAHL, PsycInfo, Cochrane, and PEDro databases. Two independent researchers screened studies of physical therapy practice with adolescents/adults with mental health disorders or research using primary mental health outcomes in physical health conditions or clinicians' perspective. Data were extracted on study type, participants, topics, publication year, and country.

RESULTS

The search yielded 3633 studies with 135 included. Five studies included adolescents. More than one-half were published since 2015. Studies specific to participants with mental health diagnoses included schizophrenia (n = 12), depressive disorders (n = 8), eating disorders (n = 6), anxiety disorders (n = 4), bipolar disorders (n = 1), somatic disorders (n = 5), and trauma and stressor-related disorders (n = 8) or varied mental health diagnoses (n = 14). Forty-one studies had primary mental health outcomes or clinical practice approaches with a mental health emphasis with participants with physical health conditions (musculoskeletal [n = 13], neurological [n = 7], other [n = 21]). Systematic reviews or randomized controlled trials predominantly involved exercise therapy and/or physical activity. Descriptions of physical therapists as participants (n = 35) included 4 main topics: (1) mental health screening; (2) knowledge, attitudes, and experiences; (3) key practice components; and (4) research priorities.

CONCLUSION

Physical therapy intersects with people experiencing mental health disorders across a broad spectrum of diagnoses, covering a range of interventions with a small but growing evidence base.

IMPACT

Exercise and physical activity studies dominated the highest levels of evidence and future focus, although economic evaluations and consumer-driven or patient experience studies are needed. There is a contrast between the confidence and knowledge of specialized physical therapists working within mental health settings and those in general practice settings. Inspiring, integrated education is required to further improve health care outcomes following physical therapy for people with mental health disorders or symptoms.

Changes in self-determined motivation for exercise in people with mental illness participating in a community-based exercise service in Australia

Exercise has diverse benefits for physical and mental health in people with mental illness; however, it is unclear how to effectively promote exercise motivation in this group. The aim of this study is to evaluate the effectiveness of interventions utilising exercise instruction or behavioural counselling with people with mental illness to improve self-determined motivation for exercise, and physical and mental health. Participants were adults (aged 18+ years) receiving mental health services. Participants could choose from two 8-week programs comprising weekly group-based sessions delivered by an exercise physiologist: (a) exercise instruction in a gym (GYM) or (b) behavioural counselling (MOT). Self-determined motivation was measured using the Behaviour Regulations for Exercise Questionnaire (BREQ3). Physical health indicators included waist circumference, blood pressure, leg strength (sit-to-stand test), physical capacity (six-minute walk test) and self-reported exercise. Mental health was assessed using the Kessler-6 scale of psychological distress. Most of the 95 participants chose exercise instruction (GYM = 60; MOT = 35). At baseline, participants who chose MOT had higher external motivation, body mass index, waist circumference and psychological distress, and a higher proportion had multiple physical comorbidities than those who chose GYM. More self-determined motivation was associated with meeting physical activity guidelines. Post-intervention, GYM participants had significant improvements in self-determined motivation, psychological distress and sit-to-stand test; MOT participants had significant improvements in integrated regulation, self-reported exercise and physical functioning. In conclusion, exercise instruction can improve self-determined motivation; however, more intensive behavioural counselling support may be needed to improve self-determined motivation. Counselling programs can increase exercise behaviour and may appeal more to people with poorer health and more external motivation. Findings have high ecological validity and applicability to real-world implementation of exercise interventions. To accommodate people with diverse conditions and motivations, motivational counselling should be combined with practical exercise support, and participants afforded the autonomy to decide their level of involvement.

Cautionary Observations Concerning the Introduction of Psychophysiological Biomarkers into Neuropsychiatric Practice

The combination of statistical learning technologies with large databases of psychophysiological data has appropriately generated enthusiastic interest in future clinical applicability. It is argued here that this enthusiasm should be tempered with the understanding that significant obstacles must be overcome before the systematic introduction of psychophysiological measures into neuropsychiatric practice becomes possible. The objective of this study is to identify challenges to this effort. The nonspecificity of psychophysiological measures complicates their use in diagnosis. Low test-retest reliability complicates use in longitudinal assessment, and quantitative psychophysiological measures can normalize in response to placebo intervention. Ten cautionary observations are introduced and, in some instances, possible directions for remediation are suggested.

The short and long-term effects of aerobic, strength, or mixed exercise programs on schizophrenia symptomatology

The purpose of this study was to compare the effects of three different physical exercise programs on the symptomatology, body composition, physical activity, physical fitness, and quality of life of individuals with schizophrenia. A total of 432 patients were assessed for eligibility and 86 were randomized into the aerobic (n = 28), strength (n = 29) or mixed (n = 29) groups. Positive, negative, and general symptoms of psychosis, body mass index (BMI), physical activity (IPAQ-SF), physical fitness (6-min walk test [6MWT] and hand-grip strength [HGS]), and quality of life (WHOQUOL-BREF) were assessed at baseline, post-intervention (16 weeks), and at 10-months. Our results at 16 weeks showed significant improvements in all three groups in the negative, general, and total symptoms with moderate to large effect sizes (P < 0.01, η_p² > 0.11), no change in the BMI, 6MWT or IPAQ-SF, and a significant improvement in the HGS test in the strength and mixed groups (P ≤ 0.05, η_p² > 0.08). Nonetheless, all the improvements had disappeared at 10 months. We concluded that 3 weekly sessions of a moderate to vigorous progressive exercise program for 16 weeks improved the symptomatology of individuals with schizophrenia in all three groups, with no differences between them. However, the effects had declined to baseline levels by the 10-month follow-up, suggesting that exercise interventions should be maintained over time.

Test-retest reliability and correlates of the 6-min walk test in people with alcohol use disorders

OBJECTIVES

People with alcohol use disorders (AUD) are at a higher risk for physical co-morbidities. Consequently, their daily life functioning needs to be reliably assessed and followed-up. We examined the reliability of the 6-min walk test (6MWT) in a cohort of inpatients with AUD. Secondary aims were to assess minimal detectable changes (MDC₉₅ ), practice effects and associations of the 6MWT with demographical and clinical variables.

METHODS

Two 6MWTs were administered within 3 days to 45 (32♂) inpatients with a DSM-5 diagnosis of AUD. Physical complaints before and after the 6MWT were recorded. Patients performed a standing broad jump to assess muscle strength and completed the International Physical Activity Questionnaire, the Positive Affect and Negative Affect Schedule (PANAS) and Alcohol Use Disorders Identification Test.

RESULTS

Patients walked 636.3 ± 82.3 meters and 638.1 ± 77.6 meters at the first and second test. The intraclass correlation coefficient was 0.94 (95% confidence interval 0.90-0.97). The MDC₉₅ was 15 meters for men and 9 meters for women. No practice effect was detected. The presence of feet or ankle problems or pain before the test, dyspnea after the test, impaired muscle strength and lower PANAS positive affect scores were independently related to shorter 6MWT distance accounting for 67.3% of the variance.

CONCLUSION

The 6MWT is a reliable tool for evaluating the functional exercise capacity in inpatients with AUD. Health care professionals should consider musculoskeletal and respiratory symptoms when interpreting fitness test outcomes in this vulnerable population.

Physical Activity Can Enhance Life (PACE-Life): results from a 10-week walking intervention for individuals with schizophrenia spectrum disorders

BACKGROUND

Premature mortality in individuals with schizophrenia spectrum disorders (SSDs) is largely due to high rates of chronic health conditions. Although exercise has been shown to improve health in this population, scalable and accessible interventions are limited.

AIM

To examine the impact of Physical Activity Can Enhance Life (PACE-Life), a novel walking intervention, on physical activity, and on secondary outcomes of cardiorespiratory fitness (CRF), physical health, autonomous motivation, social support, and quality of life.

METHOD

Sixteen individuals with SSDs were enrolled in a 10-week open trial. The intervention included walking groups, home-based walks, Fitbit use, and goal-setting and if-then plans. Within-group effect sizes were calculated to represent changes from baseline to post-test and 1-month follow-up.

RESULTS

Participants increased self-reported weekly walking minutes and decreased daily hours spent sitting; however, Fitbit-recorded exercise behavior changed only minimally. There were also improvements in secondary outcomes including autonomous motivation and hip circumference. CRF improved only minimally, and findings were relatively unchanged with outliers removed from the full sample.

CONCLUSIONS

This open trial demonstrates modest improvements in key parameters of exercise behavior and physical health from participating in PACE-Life. Future research should assess the efficacy of this intervention in a randomized controlled trial.

Differential Physical and Mental Benefits of Physiotherapy Program Among Patients With Schizophrenia and Healthy Controls Suggesting Different Physical Characteristics and Needs

In contrast to several other severe illnesses marked by inflammation and autoimmunity that now have potent and efficient treatments and even cures, schizophrenia (SCZ) is a disease still associated with poor outcome, incapacity, and social burden. Even after decades of research on the brain and behavior, this illness is still associated with profound effects on both mental health and physical health, with recent studies showing that treatment is more efficient when associating drugs with psychological and physical treatments. Most of the studies measured the effects of physical intervention compared with usual care and demonstrated a positive effect as an add-on treatment. What remains unclear is the different effects of the same intervention in normal subjects in a sample of patients with the illness. The study aimed to evaluate the effects of physical intervention over motor functional capacity and mental health in patients with SCZ compared with healthy controls (HC). The outcomes were (a) functional capacity [by 6-min walk test (6MWT)], (b) body flexibility index (Wells' bench), (c) disease severity [by Brief Psychiatric Rating Scale (BPRS)], (d) quality of life [by 36-Item Short Form (SF-36) questionnaire], and (e) physical activity [Simple Physical Activity Questionnaire (SIMPAQ)]. The intervention was associated with significant decrease of body mass index (BMI), blood pressure, disease severity, and improvement in daily life activities. Unexpectedly, it was observed that schizophrenics, compared with matched HC, were at a lower level of performance in the beginning, remained below HC over the studied time despite similar physical intervention, and had different changes. The intervention had lower effects over physical capacity and better effects over quality of life and disease severity. The results confirm previous studies comparing patients receiving physical intervention but suggest that they may receive different types of intervention, suited for their different baseline fitness, motivation, and capacity to engage in physical effort over sustained time. Additionally, they point to extended time of intervention of multidisciplinary treatment (physical and psychological-cognitive techniques) to improve outcomes in SCZ.

Reliability of the six-minute walk test in individuals with stroke: systematic review and meta-analysis

PURPOSE

The six-minute walking test (6MWT) is a simple and widely used measure of functional capacity. The aim of this systematic review is to summarize findings on reliability of 6MWT in subjects who have had a stroke.

METHODS

Two independent investigators conducted an extensive search in multidisciplinary electronic databases from inception to August 2019, and selected complete original studies on the reliability of the 6MWT used to assess individuals with stroke. Two reviewers independently extracted data and evaluated methodological quality. Outcome for meta-analysis was reliability, measured by intraclass correlation coefficient (ICC). In addition, standard error of measurement (SEM) and minimal detectable change (MDC) were recorded.

RESULTS

Of the 241 potentially relevant articles screened, 6 met inclusion criteria and 5 of them were included in meta-analysis. Combined correlation coefficient of .98 (confidence interval .98-.99) was found for test-retest reliability. Only one study investigated inter-rater and intra-rater reliability. SEM and MDC values were rarely reported.

CONCLUSIONS

The 6MWT has high test-retest reliability, when used to assess individuals with stroke. Other types of reliability and SEM and MDC need further investigations in populations with a stroke.

An exercise intervention for people with serious mental illness: Findings from a qualitative data analysis using participatory theme elicitation

Background

People with severe mental illness (SMI) often have poorer physical health than the general population. A coproduced physical activity intervention to improve physical activity for people with SMI in Northern Ireland was evaluated by co‐researchers (researchers with lived experience of SMI) and academic researchers using a new approach to participatory data analysis called participatory theme elicitation (PTE).

Objective

Co‐researchers and academic researchers analysed the data from the pilot study using PTE. This paper aimed to compare these analyses to validate the findings of the study and explore the validity of the PTE method in the context of the evaluation of a physical activity intervention for individuals with SMI.

Results

There was alignment and congruence of some themes across groups. Important differences in the analyses across groups included the use of language, with the co‐researchers employing less academic and clinical language, and structure of themes generated, with the academic researchers including subthemes under some umbrella themes.

Conclusions

The comparison of analyses supports the validity of the PTE approach, which is a meaningful way of involving people with lived experience in research. PTE addresses the power imbalances that are often present in the analysis process and was found to be acceptable by co‐researchers and academic researchers alike.

Correlates of Physical Activity and Cardiorespiratory Fitness in Racially and Ethnically Diverse People with Serious Mental Illness in Supportive Housing

We examined demographic, health, and mental health correlates of physical activity and cardiorespiratory fitness (CRF) in racially and ethnically diverse people with serious mental illness (SMI) living in supportive housing. We used baseline data from 314 people with SMI enrolled in a randomized effectiveness trial of a peer-led healthy lifestyle intervention. Sedentary behavior and physical activity were measured with the International Physical Activity Questionnaire. CRF was measured with the 6-min walking test (6MWT). Correlates were identified via ordinary least squares and logistic regressions. Participants were mostly male and racial/ethnic minorities. Thirty-four percent engaged in at least 150-min-per-week of at least moderate-intensity physical activity. On average, participants walked 316.8 m in the 6MWT. Our models show that physical activity and CRF were not evenly distributed in racially and ethnically diverse people with SMI and are associated with multiple demographic, mental health, and health factors. Our findings suggest subgroups and factors that can be targeted to develop health interventions to improve the physical health of people with SMI.

A comparison study of three physical activity measurement tools examining acceptability in people with psychosis

OBJECTIVE

To compare the acceptability of three distinct physical activity measurement tools in people with psychosis: an objective measurement tool, a self-report measure, and an exercise capacity test.

METHODS

We measured the completion rate for each measurement tool. Participants rated the ease/difficulty of each measure using a 7-point Likert scale. Participants were also asked to rank the three tools in order of the ease of use.

RESULTS

Sixty-six per cent (46/69) of participants completed all three assessment tools, and 60.9% (42/69) completed the acceptability questionnaire. The majority of the participants found it easy to complete all three measurement tools. The majority (52.8%) of the participants ranked the objective measurement tool as the easiest to use.

CONCLUSION

All three measures were acceptable to people with psychosis, but objective measurement tools may be easier to use.

Functional exercise capacity in inpatients with alcohol use disorder versus healthy controls: A pilot study

The purpose of this study was to compare the functional exercise capacity of patients with alcohol use disorders (AUD) with an age-, gender-, and body mass index (BMI)-matched healthy control group. Thirty patients (22 males, 40.4 ± 10.5 years, illness duration = 9.7 ± 9.3 years) and healthy control subjects (22 males, 40.2 ± 10.7 years) participated. Participants performed a 6-min walk test (6MWT) to assess their functional exercise capacity, were asked about musculoskeletal problems and dyspnea, executed a standing broad jump to assess their muscular strength, and completed the International Physical Activity Questionnaire (IPAQ). Patients also filled in the Positive Affect and Negative Affect Schedule (PANAS) and Alcohol Use Disorders Identification Test (AUDIT). Our data show that patients with AUD walked a significantly shorter distance on the 6MWT (649.0 ± 72.9 m vs. 724.4 ± 89.0 m, p = 0.001). In patients with AUD, the variance in standing broad jump score explained 43.6% of the variance in the 6MWT score. The current study demonstrates that impaired muscle strength is negatively associated with functional outcomes in patients with AUD. Exercise interventions should be investigated in order to assess whether they can ameliorate muscle strength and daily life functioning of this vulnerable population.

To increase physical activity in sedentary patients with affective - or schizophrenia spectrum disorders - a clinical study of adjuvant physical therapy in mental health

Purpose: To understand if physical therapy in addition to individualized psychiatric specialist treatment could aid sedentary patients with schizophrenia spectrum disorders or affective spectrum disorders to become more physically active and also to identify assessments suitable for measuring physical activity, physical function and movement motivation.Materials and methods: In a longitudinal, clinical study 18 sedentary patients that filled inclusion criteria were consecutively included. The patients were diagnosed with affective disorders (n = 10) or schizophrenia spectrum disorders (n = 8).Results: Fifteen patients fulfilled the 6-month treatment. The affective group significantly improved physical activity, walking capacity, physical function, exercise habits and attitudes. The schizophrenia spectrum group significantly improved the attitudes to the body and movements but did not increase their physical activity. Instruments to study physical activity, physical function and movement motivation were identified.Conclusion: The study revealed that physical therapy in addition to individualized psychiatric specialist treatment might be an aid for the patients to become more physically active. Patients with affective disorders reached recommended levels of moderate physical activity according to World Health Organization guidelines. Sedentary patients with schizophrenia spectrum disorders revealed positive attitude-changes, but no behavioral change.

Functional exercise capacity is associated with global functioning in patients with alcohol use disorder

This study explored whether the Global Assessment of Functioning (GAF) score is associated with the functional exercise capacity among inpatients with alcohol use disorders (AUD). 45 (32 men) inpatients (41.1 ± 13.2 years, range = 18-70 years) performed a 6-minute walk test (6 MWT), a standing broad jump (muscle strength) and were assessed with several questionnaires. The GAF-score correlated significantly with the 6 MWT-score (Pearson's r = 0.47, p = 0.002). Variance in illness duration (11.1 ± 11.0 years) explained 27.9% of the GAF-score (50.8 ± 8.0) variance. Variance in GAF and muscle strength (148.3 ± 44.8 cm) explained 50.9% of the 6 MWT-score (638.2 ± 77.6 m) variance. Future research should explore whether improving the functional exercise capacity improves global functioning in this vulnerable population.

Protocol for a randomised controlled trial of interventions to promote adoption and maintenance of physical activity in adults with mental illness

INTRODUCTION

Physical activity (PA) has diverse benefits for physical and mental health and can reduce symptoms of mental illness. Adults with mental illness face practical, psychosocial and socioeconomic barriers to adopting and maintaining PA, and it is unclear how to effectively promote PA in this group. Supervised exercise interventions provide high support but may not promote autonomous motivation, which is important for PA maintenance. The aim of this study is to compare the effectiveness of two interventions to promote PA in adults with mental illness.

METHODS AND ANALYSIS

This is a randomised controlled trial of two interventions to promote PA: (1) supervised exercise and gym membership and (2) motivational discussions and self-monitoring of PA using fitness trackers. The intervention duration is 16 weeks, including 8 weeks of weekly supervised group sessions, and 8 weeks of access to the gym or fitness tracker unsupervised. Participants are community-dwelling adults recruited from outpatient clinics of public mental health services. The primary outcome is PA adoption assessed using GENEActiv accelerometers worn continuously over 8 weeks. Secondary outcomes measured at baseline, postintervention (8 weeks) and follow-up (16 weeks), include exercise motivation, psychological distress and self-reported PA assessed using self-administered questionnaires and indicators of physical health measured by a researcher blinded to allocation (blood pressure, weight, waist circumference, 6 min walk test). Participant experiences will be assessed using qualitative focus groups with analysis informed by a theoretical model of behaviour (COM-B).

ETHICS AND DISSEMINATION

Ethics approval has been obtained from the Royal Brisbane and Women's Hospital (HREC/17/QRBW/302). We plan to submit a manuscript on protocol development from pilot work, and a manuscript of the results to a peer-reviewed journal. Results will be presented at conferences, community and consumer forums and hospital grand rounds.

TRIAL REGISTRATION NUMBER

ACTRN12617001017314; Pre-results.

Evaluating the Feasibility of a Pilot Exercise Intervention Implemented Within a Residential Rehabilitation Unit for People With Severe Mental Illness: GO HEART: (Group Occupational Health Exercise and Rehabilitation Treatment)

Purpose: People with severe mental illness are sedentary, have high cardio-metabolic risks and significantly reduced life expectancy. Despite considerable data regarding positive physical and mental health outcomes following exercise interventions, implementation and evaluation of real-world programs is lacking. The primary aim of this study was to assess the feasibility of an exercise intervention implemented by exercise physiology (EP) students within a residential rehabilitation unit for residents with severe mental illness, together with assessment of a range of secondary physical and mental health outcomes pre- and post- the intervention. Design: Single arm, prospective pilot study evaluating outcomes pre- and post- a 10 week intervention. Method: Inactive people with severe mental illness participated in a mixed aerobic and resistance exercise intervention, three times per week for 10 weeks. Data was obtained from a sample of 16 residents with severe mental illness; primary diagnosis schizophrenia (n = 12). Primary outcomes were feasibility as assessed using recruitment, retention and participation rates, as well as reasons for withdrawal and amount of exercise achieved. Secondary outcomes included: functional exercise capacity was measured by the 6-min walk test; metabolic data obtained from anthropometric measurements; blood pressure; fasting cholesterol and blood sugar levels; and physical activity levels and mental health as assessed by self- administered questionnaires measured before and after the intervention. Results: Broad level acceptance of the program: high recruitment (81%), retention (77%), and participation (78%) rates were observed. Promising improvements in functional exercise capacity, volume of exercise, and negative symptoms was demonstrated in those who completed. Conclusions: Exercise interventions delivered by EP students in a residential rehabilitation setting for people with SMI are feasible; group setting, supervision and choice for engagement are important considerations. Evaluation of longitudinal, multi site studies, with the addition of dietary interventions within residential rehabilitation units are warranted. Addressing cost feasibility and cost effectiveness of such programs is recommended. The trial was registered with the Australian New Zealand Clinical Trials Registry (ANZCTR) number, Unique Identifier: ACTRN 12618000478213, http://www.anzctr.org.au Universal trial number (UTN) - U1111-1211-4009.

[Physical activity in patients with schizophrenia: From neurobiology to clinical benefits]

Schizophrenia is a severe chronic mental disorder that mainly manifests by positive symptoms, negative symptoms, disorganized behavior and thought and cognitive impairments. Taken together, these symptoms have substantial impact on quality of life, well-being and functional outcome. Patients with schizophrenia have dramatically higher levels of cardiovascular and metabolic morbidity than the general population due to poor physical fitness and to sedentary lifestyle. They have a reduced life expectancy, and an excess mortality being two or three times more than that in the general population. Moreover, despite major therapeutic advances in the overall management of these patients, some symptomatic dimensions, and more specifically the negative and cognitive ones, remain to be resistant to the usual pharmacological approaches. Moreover, antipsychotics can also reinforce the global cardiovascular risk due to side effects and low neurometabolic tolerance. The benefits of physical activity on health are now well described in the general population and in many medical diseases. More recently, physical activity has also found its place as an adjuvant therapy in severe mental illnesses, particularly in schizophrenia. In the literature physical activity programs, in addition to pharmacological treatments, appear to be feasible in patients and improve both physical and mental health as well as functional outcome. Clinical benefits of physical activity would be underpinned by biological and cerebral mechanisms, which remain unclear. In this review, we propose to present a state of the art and to present an update of the interests of physical activity in the management of patients with schizophrenia. We emphasize the clinical benefits of physical activity regarding the different symptomatic dimensions and its impact specifically on cognitive deficits. Finally, we describe the various underlying pathophysiological mechanisms in particular in the neurobiological, cerebral and physiological fields. We then discuss the barriers, facilitators and motivating factors towards physical activity to enhance health promotion initiatives, to optimize resource allocation when delivering physical activity programs in clinical practice, and to maximize physical activity participation. Physical activity appears to be an original and novel adjunctive therapeutic approach in the management of patients with schizophrenia and would both reduce schizophrenic symptoms and act like pro-cognitive therapy, improve quality of life and long-term functioning in daily life and reduce cardiovascular comorbidities. However, efforts are still needed to increase the motivating factors and adherence towards physical activity participation for people with schizophrenia.

Implementation of a Lifestyle Intervention for People With Serious Mental Illness in State-Funded Mental Health Centers

OBJECTIVE

The purpose of this study was to evaluate health outcomes of a state-supported implementation in community mental health settings of an evidence-based lifestyle intervention for overweight and obese adults with serious mental illness.

METHODS

Weight and fitness outcomes were evaluated for 122 overweight or obese adults with serious mental illness in four community mental health centers (CMHCs) that were participating in a phased statewide implementation of the In SHAPE lifestyle intervention. Six- and 12-month outcomes were compared between two CMHCs that implemented In SHAPE in the first 12 months and two CMHCs with similar characteristics that implemented In SHAPE in a subsequent phase in the statewide implementation 12 months later.

RESULTS

Participants in the two In SHAPE sites (N=63 participants) lost significantly more weight (p=.003) and showed greater improvement in fitness (p=.011) compared with participants at the two usual care control sites (N=59 participants). At six months, nearly half (49%) of In SHAPE participants and at 12 months more than half (60%) of In SHAPE participants showed clinically significant cardiovascular risk reduction defined as ≥5% weight loss or improved fitness (>50 m [164 feet] increase on the six-minute walk test). The difference between the In SHAPE and control groups was not statistically significant.

CONCLUSIONS

This natural experiment demonstrated promising public health benefits of a practical implementation of health promotion programming for overweight and obese adults with serious mental illness and offers a potential model for reducing risk of early mortality among individuals served by state-funded mental health centers nationwide.

Educational nurse-led lifestyle intervention for persons with mental illness

Although persons with severe mental illness face an increased risk of mortality and of developing negative health outcomes, research has shown that lifestyle interventions can sufficiently support their health. In response, this study examined a nurse-led lifestyle intervention developed in cooperation with members of municipal and county councils to gauge its impact on the quality of life, cognitive performance, walking capacity, and body composition of persons with severe mental illness. Lasting 26 weeks and involving 38 persons with severe mental illness, the intervention prioritised two components: the interpersonal relationships of persons with severe mental illness, staff, and group leaders and group education about physical and mental health. Pre-post intervention measurements of quality of life collected with the Manchester Short Assessment of Quality of Life, cognitive performance with the Frontal Systems Behaviour Scale, walking capacity with a 6-min walk test, and body composition in terms of waist circumference and body mass index were analysed using a nonparametric test Wilcoxon signed-rank test. Results suggest that the intervention afforded significant improvements in the health-related variables of quality of life, cognitive performance, walking capacity, and waist circumference for persons with severe mental illness. However, long-term studies with control groups and that examine parameters related to cardiovascular risk factors are essential to ensure the sustained impact of the intervention.

Perspectives of a tailored lifestyle program for people with severe mental illness receiving housing support

PURPOSE

The purpose of the present study was to describe the acceptability of the lifestyle program PHYS/CAT and to get information about the tools used for assessment of functional exercise capacity, cognitive performance, and self-health-related quality of life.

DESIGN AND METHODS

The findings are based on focus groups and the researchers' experiences of conducting the program as well as using the assessment tools.

FINDINGS

The acceptability of the program and the assessment tools was mainly satisfactory.

PRACTICE IMPLICATIONS

The program with relational, educational, and supportive dimensions may be a promising tool to be integrated into daily nursing care.

Reduced cardiovascular fitness associated with exposure to clozapine in individuals with chronic schizophrenia

Studies show that individuals with schizophrenia have impaired cardiovascular fitness (i.e., low peak aerobic power (VO₂peak)). It is speculated that antipsychotics with adverse cardiovascular and metabolic profiles, in particular clozapine, have a significant impact on VO₂peak. In this cross-sectional study, we examined whether exposure to clozapine was associated with further reduced VO₂peak compared with non-clozapine antipsychotics. Thirty participants with chronic schizophrenia or schizoaffective disorder were divided into clozapine and non-clozapine groups. Mean daily doses of antipsychotics were standardized to chlorpromazine equivalents and haloperidol equivalents for antagonism of alpha₁- and alpha₂-adrenergic receptors. Participants completed an incremental-to-maximal symptom-limited exercise test on a cycle ergometer for the assessment of VO₂peak. The clozapine group demonstrated significantly lower VO₂peak than the non-clozapine group. Haloperidol equivalents for alpha-adrenergic receptor antagonism, but not chlorpromazine equivalents, demonstrated significant inverse associations with VO₂peak. The clozapine group had a significantly higher amount of antagonistic activity at alpha-adrenergic receptors than the non-clozapine group. In conclusion, exposure to clozapine was associated with further reduced cardiovascular fitness, which may be explained by the drug's greater antagonistic activity at alpha-adrenergic receptors. Cardiovascular fitness needs to be promoted in individuals treated with antipsychotics, particularly clozapine, to prevent the risk of cardiovascular disease and mortality.

Effects of in-hospital exercise on liver function, physical ability, and muscle mass during treatment of hepatoma in patients with chronic liver disease

AIMS

Sarcopenia and physical disability assessed by a 6-min walking test (6MWT) are associated with poor prognosis of patients with chronic liver disease (CLD). However, CLD patients with hepatocellular carcinoma (HCC) mostly rest in bed during hospitalization. We aimed to investigate the effects of therapeutic exercise on liver function, 6MWT, and skeletal muscle mass during HCC treatment in patients with CLD.

METHODS

We enrolled 54 CLD patients with HCC (median age, 76 years). During hospitalization, patients performed a combination of stretching, strength training, balance practice, and endurance training (2.5-4 metabolic equivalents/20 min/day). Primary outcomes were changes from admission to discharge in Child-Pugh class, 6MWT, and skeletal muscle mass. Furthermore, factors associated with skeletal muscle atrophy were analyzed by a decision-tree analysis.

RESULTS

Exercise did not worsen the Child-Pugh class. On discharge, the 6MWT ambulation distance was maintained, and heart rate variability during the 6MWT was significantly improved compared to that on admission (area under the curve 50.3 vs. 39.0 arbitrary units; P = 0.0027). Although skeletal muscle mass was significantly reduced (20.6 kg vs. 20.0 kg, P = 0.0301), branched-chain amino acid (BCAA) treatment was identified as the most distinguishable factor for minimizing muscle mass atrophy (-1.1 kg vs. -0.5 kg/hospitalization).

CONCLUSIONS

Therapeutic exercise improved physical ability without worsening liver function during hospitalization for HCC treatment in CLD patients. Although exercise did not completely prevent skeletal muscle atrophy, BCAA treatment minimized the skeletal muscle atrophy. Thus, exercise with BCAA treatment may be important for the management of CLD patients with HCC.