Test-retest reliability, concurrent validity and correlates of the two-minute walk test in outpatients with psychosis

Conceptual and Evidence Update on Incidental Physical Activity: A Scoping Review of Experimental and Observational Studies

Promoting incidental physical activity (IPA) can help reduce sedentary lifestyles and physical inactivity levels in the population. However, there is heterogeneity in the definition of IPA, and studies have yet to synthesize the empirical findings on this topic. This review aimed to (1) Synthesize the definitions of the IPA used in the scientific literature, (2) Identify the behaviors part of the IPA, and (3) Synthesize the main findings on IPA. The review followed PRISMA guidelines. A systematic search was performed in July 2023, and an update was made in February 2024 in the CINAHL databases by EBSCOhost, Cochrane Library, Pubmed, ScienceDirect, Scopus, and Web of Science. The search phrase was ("incidental physical activity" OR "incidental physical activity of daily living" OR "incidental movement" OR "vigorous intermittent lifestyle physical activity" OR "VILPA" OR "physical activity of daily living"). Fifty-five studies were included, with non-experimental (40), experimental (12), qualitative studies (2), and mixed design (1). Ten different terms for IPA were identified, and a conceptual definition was included in 33 articles. Behaviors measured as part of the IPA were reported in 41 articles. These definitions describe unstructured, unplanned, and unintentional physical activities of daily living that are performed as a by-product of an activity with a different primary purpose during free or occupational time and without specific fitness, sport, or recreation goals. Include light and vigorous intensities ranging from short sessions of < 1 min to prolonged ones. They include home activities, self-care, gardening, occupation, active transportation, and walking. Furthermore, evidence on IPA suggests an association with a lower risk of all-cause mortality. The findings of this review contribute to the updated study of IPA. Advances in data processing methods are needed to capture the diversity of behaviors and deepen the understanding of IPA.

Handgrip strength is associated with functioning in patients with mental disorders: A two-center cross-sectional study

Physical and mental health are intricated, however, there is a paucity of studies investigating the association between self-reported global functioning and handgrip strength and functional capacity in people with mental disorders. This study investigated the association between functioning, handgrip strength, and functional capacity in outpatients with a range of mental disorders. This was a two-center, cross-sectional study. Functioning was assessed with the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). Handgrip strength was assessed with a hand dynamometer, and functional exercise capacity through the 2-min walk test (2 MW T). Multiple linear regression analysis was used to identify the association between WHODAS 2.0, handgrip strength, and functional capacity, adjusted for study site, age, educational level, and severity of psychiatric symptoms. A total of 91 outpatients (mean age = 40.16 ± 13.49, 63.7% females) participated in the study. The mean functioning score was 26.77 (±8.74) out of 60 points, while the mean distance walked was 142.20 ± 34.40 m and the mean handgrip strength was 30.62 ± 11.17 kgf. The adjusted multiple linear regression analysis revealed that only handgrip strength (p = 0.008, 95%CI = -0.327 to -0.050) was associated with functioning. Thus, our results revealed that muscular strength is associated with functioning in patients with mental disorders. This study suggests the importance of incorporating physical health assessment into mental health care for a comprehensive assessment of functioning levels, which is usually restricted to mental symptoms.

A 10-hours workshop improves physical activity prescription for mental illness knowledge and confidence in health care professionals: a nation-wide multicentre study from Uganda

PURPOSE

Lack of knowledge about and confidence in physical activity (PA) prescription for people with mental illness are important barriers for clinical practice in low-income countries. The aim of this study was to evaluate whether a 10-hour workshop improved the knowledge and confidence in PA prescription among health care professionals in 13 regional referral hospitals across Uganda.

MATERIAL AND METHODS

260 health care professionals (age = 40.4 ± 10.8 years; 48% women; 63.8% nurses, 10% social workers, 8.1% psychologists, 7.3% medical doctors, 5.8% psychiatrists, 5% physical or occupational therapists) completed the Exercise in Mental Illness Questionnaire - Health Professionals Version (EMIQ-HP) pre- and post-workshop.

RESULTS

The EMIQ-HP PA knowledge score (3.1 ± 0.7 versus 1.3 ± 1.3, p < 0.001, Cohen's d = 1.28, 95% confidence interval, CI = 1.04-1.52, i.e., large effect) and EMIQ-HP confidence in PA prescription score (3.0 ± 0.8 versus 1.2 ± 1.2, p < 0.001, Cohen's d = 1.14, 95% CI = 0.91-1.36, i.e., large effect) improved significantly following training. Significantly more benefits and fewer barriers to prescribing PA in busy low-resourced settings were reported.

CONCLUSIONS

Training in PA counselling improved the knowledge and confidence in PA prescription in Ugandan health care professionals. Future research should investigate whether PA uptake in people with mental illness can be improved via additional training of health care professionals.IMPLICATIONS FOR REHABILITATIONThe majority of mental health professionals never recommend physical activity to their patients in low-resourced settings and increased awareness is needed to improve rehabilitation programs.Training in prescribing physical activity using the 5A framework improves knowledge about physical activity prescription in mental health professionals at all levels of care.Training in prescribing physical activity using motivational interviewing improves confidence in physical activity prescription in rehabilitation programs.Training in prescribing physical activity reduces perceived barriers for prescribing in rehabilitation programs in low-resourced settings.

Aerobic exercise in severe mental illness: requirements from the perspective of sports medicine

Major depression, bipolar disorder, and schizophrenia are severe mental illnesses. Despite receiving psychopharmacological and psychosocial treatments, about half of patients develop a chronic course with residual cognitive and negative symptoms and have a high risk for cardiovascular disease and reduced life expectancy. Therefore, add-on innovative treatment approaches are needed to improve outcome. Aerobic exercise interventions have been shown to improve global functioning, cognition, and negative and depressive symptoms in these patients. The basic mechanism of these exercise-related changes has been reported to be improved brain plasticity, e.g., increased volume of disease-related brain regions such as the hippocampus. The optimal type, duration, and frequency of exercise have not yet been determined and need to be addressed in supervised physical exercise studies. Because of the low physical activity levels, lack of drive related to negative and depressive symptoms, and high prevalence of cardiovascular comorbidities in patients with severe mental illness, besides aiming to improve symptoms of mental illness, exercise interventions should also aim to increase cardiorespiratory fitness, which they should comprehensively assess by direct measurements of maximal oxygen uptake. Based on the recommendations for developing cardiorespiratory fitness by the American College of Sports Medicine, 150 min moderate-intensity training per week or vigorous-intensity exercise training for 75 min per week are appropriate. Most studies have had relatively short intervention periods, so future studies should focus on long-term adherence to exercise by implementing motivational strategies supported by telemedicine and by identifying and targeting typical barriers to exercise in this patient population.

Reliability and validity of physical fitness tests in people with mental disorders: A systematic review and meta-analysis

BACKGROUND

Several tests are available to assess the different components of physical fitness, including cardiorespiratory fitness, muscular strength, and flexibility. However, the reliability and validity of physical fitness tests in people with mental disorders has not been meta-analyzed.

AIMS

To examine the reliability, concurrent, and convergent validity of physical fitness tests in people with mental disorders.

METHODS

Studies evaluating the reliability, concurrent, and convergent validity of physical fitness tests in people with mental disorders were searched from major databases until January 20, 2020. Random-effects meta-analyses were performed pooling (1) reliability: test-retest correlations at two-time points, (2) convergent validity between submaximal tests and maximal protocols, or (3) concurrent validity between two submaximal tests. Associations are presented using r values and 95% confidence intervals. Methodological quality was assessed using the Quality Appraisal of Reliability Studies and the Critical Appraisal Tool.

RESULTS

A total of 11 studies (N = 504; 34% females) were included. Reliability of the fitness tests, produced r values ranging from moderate (balance test-EUROFIT; [r = 0.75 (0.60-0.85); p = 0.0001]) to very strong (explosive leg power EUROFIT; [r = 0.96 (0.93-0.97); p = 0.0001]). Convergent validity between the 6-min walk test (6MWT) and submaximal cardiorespiratory tests was moderate (0.57 [0.26-0.77]; p = 0.0001). Concurrent validity between the 2-min walk test and 6MWT (r = 0.86 [0.39-0.97]; p = 0.0004) was strong.

CONCLUSION

The present study demonstrates that physical fitness tests are reliable and valid in people with mental disorders.