Correlations Between Gait Speed, 6-Minute Walk Distance, Physical Activity, and Self-Efficacy in Patients With Severe Chronic Lung Disease

Background Supervised lifestyle interventions have the potential to significantly improve physical activity and fitness in patients with chronic kidney disease (CKD). Methods To assess the efficacy of a lifestyle intervention in patients with CKD to improve cardiorespiratory fitness and exercise capacity over 36 months, we conducted a randomized clinical trial, enrolling 160 patients with stage 3-4 CKD, with 81 randomized to usual care and 79 to 3-year lifestyle intervention. The lifestyle intervention comprised care from a multidisciplinary team, including a nephrologist, nurse practitioner, exercise physiologist, dietitian, diabetes educator, psychologist, and social worker. The exercise training component consisted of an 8-week individualized and supervised gym-based exercise intervention followed by 34 months of a predominantly home-based program. Self-reported physical activity (metabolic equivalent of tasks [METs] min/wk), cardiorespiratory fitness (peak O2 consumption [VO2peak]), exercise capacity (maximum METs and 6-minute walk distance) and neuromuscular fitness (grip strength and get-up-and-go time) were evaluated at 12, 24, and 36 months. Results The intervention increased the percentage of patients meeting physical activity guideline targets of 500 MET min/wk from 29% at baseline to 63% at 3 years. At 12 months, both VO2peak and METs increased significantly in the intervention group by 9.7% and 30%, respectively, without change in the usual care group. Thereafter, VO2peak declined to near baseline levels, whereas METs remained elevated in the intervention group at 24 and 36 months. After 3 years, the intervention had increased the 6-minute walk distance and blunted declines in the get-up-and-go test. Conclusions A 3-year lifestyle intervention doubled the percentage of CKD patients meeting physical activity guidelines, improved exercise capacity, and ameliorated losses in neuromuscular and cardiorespiratory fitness.

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PSYCHOLOGICAL FACTORS ASSOCIATED WITH AMBULATION PERFORMANCE AFTER HIP FRACTURE AMONG HOME-DWELLING OLDER ADULTS

Innovation in Aging ◽

10.1093/geroni/igz038.1566 ◽

2019 ◽

Vol 3 (Supplement_1) ◽

pp. S419-S419

Author(s):

Richard H Fortinsky

Keyword(s):

Older Adults ◽

Hip Fracture ◽

Gait Speed ◽

Psychological Factors ◽

Walk Distance ◽

Balance Confidence ◽

Minute Walk Distance ◽

Minute Walk ◽

Walking Endurance

Abstract Many older adults fail to resume optimal community living after hip fracture due to sustained limitations in ambulation capacity, yet reasons remain poorly understood. Roles of psychological factors in affecting ambulation performance post-hip fracture remain particularly understudied; depression has been associated with poorer self-reported functional status, and little is known about self-perceived balance confidence, resilience, and optimism. This presentation reports associations between each psychological factor, measured at CAP baseline, and gait speed and walking endurance, measured at baseline and 16 weeks later. In the CAP cohort (N=210), baseline mean/sd 4-meter gait speed (gs), 50-foot walk gs, and 6-minute walk distance were: 0.60/0.19 meters per second (mps); 0.67/0.20 mps; and 186.9/55.4 meters, respectively. In multivariate models, balance confidence was positively associated with all baseline ambulation measures (p<0.001 in all models), and resilience was positively associated with all 16-week follow-up ambulation measures (p>0.05 in all models). Implications of results will be discussed.

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Reference values and regression equations for predicting the 6-minute walk distance in Saudi adults aged 50–80 years: A cross- sectional study

Journal of Back and Musculoskeletal Rehabilitation ◽

10.3233/bmr-200240 ◽

2021 ◽

pp. 1-11

Author(s):

Nawal S. AL-Ghamdi ◽

Afaf A.M. Shaheen

Keyword(s):

Physical Activity ◽

Reference Values ◽

Cross Sectional Study ◽

Regression Equations ◽

Sectional Study ◽

Walk Distance ◽

Cross Sectional ◽

Reference Equations ◽

Minute Walk Distance ◽

Minute Walk

BACKGROUND: The 6-minute walk test (6-MWT) is commonly used to measure functional capacity in clinical and research settings. The reference equations for predicting the 6-minute walk distance (6-MWD) in different populations have been established; however, there is a lack of information regarding healthy Saudi individuals over 50 years old. OBJECTIVES: This study aimed to establish the reference values of 6-MWD in a sample of healthy Saudi adults aged 50–80 years, develop regression equations for the established 6-MWD, and compare the measured 6-MWD in the present study with the predicted 6-MWD derived from the previously published regression equations. METHODS: In total, 210 healthy Saudi volunteers aged 50–80 years participated in this cross-sectional study. The 6-MWT was performed according to the American Thoracic Society (ATS) guidelines. Lung function, physical activity, blood pressure, heart rate, oxygen saturation, exertion level of leg fatigue, and sensation of dyspnea were measured. RESULTS: The mean 6-MWD was 396.2 ± 69.4 m. It was significantly correlated with age, sex, height, body mass index (BMI), and physical activity. The predictors of 6-MWD were age and BMI for men, while they were age, BMI, and height for women. They accounted for 25% and 35% of the total variance of 6-MWD for men and women, respectively. The measured 6-MWD was significantly shorter than the predicted 6-MWD. CONCLUSION: Saudi populations have significantly shorter 6-MWDs than those reported in other ethnic groups. The sex-specific equations developed in this study are expected to provide a useful measure of 6-MWT for Saudi adults. However, further investigation is required to validate the application of these equations to individuals living in different regions of Saudi Arabia.

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Walking with controlled breathing improves exercise tolerance, anxiety, and quality of life in heart failure patients: A randomized controlled trial

European Journal of Cardiovascular Nursing ◽

10.1177/1474515118778453 ◽

2018 ◽

Vol 17 (8) ◽

pp. 717-727 ◽

Cited By ~ 5

Author(s):

Hsiu-Chin Teng ◽

Mei-Ling Yeh ◽

Mei-Hua Wang

Keyword(s):

Quality Of Life ◽

Physical Activity ◽

Heart Failure ◽

Oxygen Saturation ◽

Interoceptive Awareness ◽

Walk Distance ◽

Heart Failure Patients ◽

Minute Walk Distance ◽

Minute Walk

Background: Patients with heart failure experience not only impaired physical condition, but also their physical activity, moods, and quality of life may be diminished. Aims: The purpose of this study was to investigate the effects of 12-week walking with breathing program on physical activity tolerance considering time-dependent physiological factors and time-independent interoceptive awareness, as well as psychosocial factors. Methods: This randomized controlled trial recruited 90 heart failure patients and randomly assigned them. The walking with breathing group received the walking and breathing intervention for 12 weeks but the control group did not. Outcomes included activity tolerance measured by 6-minute walk distance, moods assessed by the Hospital Anxiety and Depression Scale, quality of life determined by the EuroQol 5-Dimensions, oxygen saturation by pulse oximetry, and interoceptive awareness by the Multidimensional Assessment of Interoceptive Awareness scale. Data were collected before the intervention at baseline and at Weeks 2, 4 and 12. Results: The results of the generalized estimating equation showed the 6-minute walk distance in the walking with breathing group was significantly different across time ( p<0.001) compared with the control group at baseline. Oxygen saturation by pulse oximetry ( p=0.04) and Trusting on the Multidimensional Assessment of Interoceptive Awareness scale ( p=0.001) significantly and positively correlated with results of the 6-minute walk distance. There were significant between-group differences at Week 12 in anxiety ( p=0.03) and quality of life ( p=0.02) but not depression ( p=0.06). Conclusions: Walking with breathing improved heart failure patients’ tolerance of physical activity, probably because of improved oxygen saturation and trusting interoceptive awareness. Walking with breathing also improved patients’ anxiety and quality of life.

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