Impact of sensor misplacement on estimating metabolic equivalent of task with wearables

Author(s):  
Parastoo Alinia ◽  
Ramyar Saeedi ◽  
Bobak Mortazavi ◽  
Ali Rokni ◽  
Hassan Ghasemzadeh
Author(s):  
Chun Shea ◽  
Abdul Rouf Khawaja ◽  
Khalid Sofi ◽  
Ghulam Nabi

Abstract Purpose The Metabolic equivalent of task (MET) score is used in patients’ preoperative functional capacity assessment. It is commonly thought that patients with a higher MET score will have better postoperative outcomes than patients with a lower MET score. However, such a link remains the subject of debate and is yet unvalidated in major urological surgery. This study aimed to explore the association of patients’ MET score with their postoperative outcomes following radical cystectomy. Methods We used records-linkage methodology with unique identifiers (Community Health Index/hospital number) and electronic databases to assess postoperative outcomes of patients who had underwent radical cystectomies between 2015 and 2020. The outcome measure was patients’ length of hospital stay. This was compared with multiple basic characteristics such as age, sex, MET score and comorbid conditions. A MET score of less than four (< 4) is taken as the threshold for a poor functional capacity. We conducted unadjusted and adjusted Cox regression analyses for time to discharge against MET score. Results A total of 126 patients were included in the analysis. Mean age on date of operation was 66.2 (SD 12.2) years and 49 (38.9%) were female. A lower MET score was associated with a statistically significant lower time-dependent risk of hospital discharge (i.e. longer hospital stay) when adjusted for covariates (HR 0.224; 95% CI 0.077–0.652; p = 0.006). Older age (adjusted HR 0.531; 95% CI 0.332–0.848; p = 0.008) and postoperative complications (adjusted HR 0.503; 95% CI 0.323–0.848; p = 0.002) were also found to be associated with longer hospital stay. Other comorbid conditions, BMI, disease staging and 30-day all-cause mortality were statistically insignificant. Conclusion A lower MET score in this cohort of patients was associated with a longer hospital stay length following radical cystectomy with urinary diversion.


2021 ◽  
Vol 10 (7) ◽  
pp. 1539
Author(s):  
Dong-Hyuk Cho ◽  
Sun Ju Lee ◽  
Sae Young Jae ◽  
Woo Joo Kim ◽  
Seong Jun Ha ◽  
...  

Regular physical activity (PA) is known to reduce the risk of serious community-acquired infections. We examined the association of PA with the morbidity and mortality resulting from coronavirus disease (COVID-19) infection in the South Korean population. Patients who tested positive for severe acute respiratory coronavirus 2 and who underwent public health screening between 2014 and 2017 (n = 6288) were included. Age- and sex-matched controls (n = 125,772) were randomly selected from the Korean National Health Insurance Service database. Leisure-time PA was assessed using a self-reported questionnaire. The mean PA levels were lower in the patient than in the control group (558.2 ± 516.3 vs. 580.2 ± 525.7 metabolic equivalent of task (MET)-min/week, p = 0.001). Patients with moderate to vigorous PA (MVPA) were associated with a lower risk of COVID-19 morbidity (odds ratio (OR), 0.90; 95% confidence interval (CI), 0.86–0.95). In addition, a standard deviation (SD) increment in MET/week (525.3 MET-min/week) was associated with a 4% decrease in the risk of COVID-19 morbidity (OR, 0.96; 95% CI, 0.93–0.99). MVPA and an SD increment in MET/week were associated with lower mortality (MVPA: OR, 0.47; 95% CI, 0.26–0.87; per SD increment: OR, 0.65; 95% CI, 0.48–0.88). Higher levels of regular PA were associated with a lower risk of COVID-19 infection and mortality, highlighting the importance of maintaining appropriate levels of PA along with social distancing amid the COVID-19 pandemic.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Marvin A. Sackner ◽  
Jose R. Lopez ◽  
Veronica Banderas ◽  
Jose A. Adams

Abstract Background Sedentary time poses a risk to health. Substituting physical activity for inactivity is obvious but this requires a behavior change. Interventions advocated to decrease uninterrupted physical inactivity (defined as Metabolic Equivalent of Task (METS) less than 1.5) are important. One such intervention is accomplished with the Gentle Jogger (GJ), a low risk motorized wellness device which produces effortless, rapid motion of the lower extremities simulating locomotion or fidgeting. GJ produces health benefits in type 2 diabetes, heart disease, and high blood pressure. The purpose of this trial was to ascertain whether GJ increases METS above 1.5 to explain its effectiveness despite sedentary behavior or whether tapping is responsible. Methods A randomized single-arm trial was conducted. Subjects were randomized to begin the study in either the supine or seated postures and on the same day crossed over with the starting posture reversed. Oxygen consumption was measured at rest and during GJ. Results Twenty-six subjects were studied (15 women and 11 men) with a mean age of 44 ± 15 years and BMI 27.9 ± 5.0, 19 were overweight or obese, and 7 had normal BMI. GJ increased oxygen consumption and METS 15% in the seated posture and 13% in the supine posture. No individual receiving GJ achieved METS exceeding 1.5. Conclusions In a moderately obese population, GJ in seated or supine posture did not exceed 1.5 METS. The values are comparable to those reported for sit-stand interventions and cannot explain the health benefits of GJ. Trial registration ClinicalTrials.gov, NCT03602365. Registered on July 26, 2018


Author(s):  
Oliver Vogel ◽  
Daniel Niederer ◽  
Jan Wilke ◽  
Maike Steinmann ◽  
Lutz Vogt

This study investigates methods of data gathering and management, along with the relationship of lifespan and older adults’ activity. Community-dwelling older adults (n = 47, 81.7 ± 3.6 years) completed the Lifetime Leisure Physical Activity Questionnaire. Current activity was assessed by use of accelerometers. The data were converted to the metabolic equivalent of task hours. Correlations between the main outcomes (metabolic equivalent of task/hour, Lifetime Leisure Physical Activity Questionnaire), as well as individual estimation errors for data adjustments, were computed. The accelerometer and Lifetime Leisure Physical Activity Questionnaire data for the last 12 months’ activity were associated (r = .31, p = .033). The average overestimation in the self-reported data was 176%. The adapted data on lifetime physical activity reveals correlations between older adults’ activity and the activity levels of three 15-year episodes (r = .354; r = .336; r = .323; each p < .05), as well as compliance with guidelines throughout life (Hotelling’s T2 = 45–164; p ≤ .002). Our findings indicate a relationship between lifetime and older adults’ activity and provide further support for lifelong engagement in physical activity.


2018 ◽  
Vol 8 (1) ◽  
pp. 202-206
Author(s):  
R. Terlikowski ◽  
Z. Łada ◽  
MA. Strzyż-Skalij ◽  
K. Kryński ◽  
M. Osmólska ◽  
...  

Physical activity (PA) is an important modifiable risk factor for endometrial cancer (EC). PA has been studied using diverse measures including metabolic equivalent of task MET, duration, frequency and subjective levels, but for practical reasons most of epidemiological studies use questionnaires rather than objective measures to document PA. Moderate-intense daily PA has a protective effect and have a 20-40% reduced risk of EC. In this rewiev complex and variable behaviour, and the ability of epidemiological studies to determine the relationship between PA and EC has been discussed.


2020 ◽  
Author(s):  
Alicja Zientara ◽  
Igor Schwegler ◽  
Omer Dzemali ◽  
Hans Bruijnen ◽  
Alain Bernheim ◽  
...  

Abstract Background: Reliable prediction of the preoperative risk is of crucial importance for patients undergoing aortic repair. In this retrospective cohort study we evaluated the metabolic equivalent of task (MET) in the preoperative risk assessment with clinical outcome in a cohort of consecutive patients.Methods: Retrospective analysis of prospectively collected data in a single center unit of 296 patients undergoing open or endovascular aortic repair. Out of these, 276 patients had a preoperative statement of their functional capacity in metabolic units and were evaluated concerning their postoperative outcome. Results: Mean survival of the whole cohort was 74 months. There was no significant difference between patients with a functional capacity of more or less than 4 MET respectively (74.5 vs 65.4 months; p=0.64). The infrarenal cohort was subdivided based on the operative technique (open or endovascular) and the preoperative MET status. Survival analysis of all four subgroups showed no significant differences. The median follow-up of the patients’ cohort was 10.8 months. In 46 patients with >4MET (20.9%) perioperative complications occurred compared to the group with <4MET with 18 patients (32.1%) (p=0.075). The risk to miss a potential need for cardiac optimization in patients >4MET was 7%.Conclusion: Functional preoperative evaluation by MET in patients undergoing aortic surgery is used as standardized tool for patients’ assessment and is meant to act as a useful surrogate marker of perioperative performance. However, it could not discern patients in need for cardiopulmonary testing.Trial registration: clinicaltrials.gov, registration number NCT03617601 (retrospectively registered)


Author(s):  
Umut Ziya Kocak

Aim: To investigate the energy expenditure of amateur eSport athletes between sitting and an eSport gaming session. Materials & methods: Eleven amateur male eSport athletes (age: 21.73 ± 3.50 years, weight: 76.00 ± 12.51 kg, height: 1.81 ± 0.06 m) were included. After recording the resting values, eSports playing values were recorded using an open circulation oxygen consumption analyzer (QuarkCPET, COSMED, Albano Laziale, Italy). Also, action per min (APM) scores were recorded. Results: When comparing the respiratory frequency, metabolic equivalent of task values and energy expenditure values of the participants, a significant increase was observed in all three values (p < 0.05 for each). Conclusion: eSports players, who are considered to be physically inactive by sitting, spend approximately 40% more energy than sitting, even at the amateur level. According to APM, more energy can be spent in tournaments and at the elite level.


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