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Turner LV, Marak MC, Gal RL, Calhoun P, Li Z, Jacobs PG, Clements MA, Martin CK, Doyle FJ, Patton SR, Castle JR, Gillingham MB, Beck RW, Rickels MR, Riddell MC. Associations between daily step count classifications and continuous glucose monitoring metrics in adults with type 1 diabetes: analysis of the Type 1 Diabetes Exercise Initiative (T1DEXI) cohort. Diabetologia 2024; 67:1009-1022. [PMID: 38502241 DOI: 10.1007/s00125-024-06127-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/16/2024] [Indexed: 03/21/2024]
Abstract
AIMS/HYPOTHESIS Adults with type 1 diabetes should perform daily physical activity to help maintain health and fitness, but the influence of daily step counts on continuous glucose monitoring (CGM) metrics are unclear. This analysis used the Type 1 Diabetes Exercise Initiative (T1DEXI) dataset to investigate the effect of daily step count on CGM-based metrics. METHODS In a 4 week free-living observational study of adults with type 1 diabetes, with available CGM and step count data, we categorised participants into three groups-below (<7000), meeting (7000-10,000) or exceeding (>10,000) the daily step count goal-to determine if step count category influenced CGM metrics, including per cent time in range (TIR: 3.9-10.0 mmol/l), time below range (TBR: <3.9 mmol/l) and time above range (TAR: >10.0 mmol/l). RESULTS A total of 464 adults with type 1 diabetes (mean±SD age 37±14 years; HbA1c 48.8±8.1 mmol/mol [6.6±0.7%]; 73% female; 45% hybrid closed-loop system, 38% standard insulin pump, 17% multiple daily insulin injections) were included in the study. Between-participant analyses showed that individuals who exceeded the mean daily step count goal over the 4 week period had a similar TIR (75±14%) to those meeting (74±14%) or below (75±16%) the step count goal (p>0.05). In the within-participant comparisons, TIR was higher on days when the step count goal was exceeded or met (both 75±15%) than on days below the step count goal (73±16%; both p<0.001). The TBR was also higher when individuals exceeded the step count goals (3.1%±3.2%) than on days when they met or were below step count goals (difference in means -0.3% [p=0.006] and -0.4% [p=0.001], respectively). The total daily insulin dose was lower on days when step count goals were exceeded (0.52±0.18 U/kg; p<0.001) or were met (0.53±0.18 U/kg; p<0.001) than on days when step counts were below the current recommendation (0.55±0.18 U/kg). Step count had a larger effect on CGM-based metrics in participants with a baseline HbA1c ≥53 mmol/mol (≥7.0%). CONCLUSIONS/INTERPRETATION Our results suggest that, compared with days with low step counts, days with higher step counts are associated with slight increases in both TIR and TBR, along with small reductions in total daily insulin requirements, in adults living with type 1 diabetes. DATA AVAILABILITY The data that support the findings reported here are available on the Vivli Platform (ID: T1-DEXI; https://doi.org/10.25934/PR00008428 ).
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Affiliation(s)
- Lauren V Turner
- School of Kinesiology and Health Science, York University, Toronto, ON, Canada
| | | | - Robin L Gal
- Jaeb Center for Health Research, Tampa, FL, USA
| | | | - Zoey Li
- Jaeb Center for Health Research, Tampa, FL, USA
| | - Peter G Jacobs
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA
| | | | - Corby K Martin
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - Francis J Doyle
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | | | - Jessica R Castle
- Harold Schnitzer Diabetes Health Center, Oregon Health & Science University, Portland, OR, USA
| | - Melanie B Gillingham
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - Roy W Beck
- Jaeb Center for Health Research, Tampa, FL, USA
| | - Michael R Rickels
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael C Riddell
- School of Kinesiology and Health Science, York University, Toronto, ON, Canada.
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Marshall ZA, Mackintosh KA, Lewis MJ, Ellins EA, McNarry MA. Association of physical activity metrics with indicators of cardiovascular function and control in children with and without type 1 diabetes. Pediatr Diabetes 2021; 22:320-328. [PMID: 33215796 DOI: 10.1111/pedi.13159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/22/2020] [Accepted: 11/11/2020] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE Little is known about the role of physical activity accumulation in cardiovascular disease risk for children with type 1 diabetes. Improved insight to identify factors of influence in key health outcomes could be provided by considering the entire physical activity profile. METHODS Pulse wave velocity (PWV), augmentation index and heart rate variability (HRV) were assessed cross-sectionally in children with (n = 29, 12.1 ± 2.1 years) and without (n = 19, 12.1 ± 2.1 years) type 1 diabetes. Time spent sedentary and in each physical activity intensity, intensity gradient and average acceleration were derived from seven consecutive days of monitoring with wrist-worn accelerometry. Comparison between groups and influence of physical activity accumulation on cardiovascular metrics were explored with linear mixed models. RESULTS Diabetic children demonstrated a higher PWV and a greater volume of light physical activity (p < 0.01), a more negative intensity gradient (p < 0.01), a lower average acceleration and less time in bouted moderate-to-vigorous physical activity (MVPA; p < 0.05). Overall, intensity gradient was strongly correlated with average acceleration, MVPA and bouted MVPA (r2 = 0.89, r2 = 0.80, r2 = 0.79, respectively; all p < 0.05), while average acceleration was correlated with MVPA and bouted MVPA (r2 = 0.85, r2 = 0.83, respectively; p < 0.05). Accounting for disease status, intensity gradient and average acceleration were significant predictors of HRV indices (p < 0.05) and PWV (p < 0.01, p < 0.05, respectively). CONCLUSION Overall, MVPA was most associated with central stiffness, highlighting the importance of meeting activity guidelines. Diabetic children demonstrated poorer cardiovascular health than their counterparts, likely attributable to a lower intensity and physical activity volume, identifying physical activity intensity as a key target for future interventions.
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Affiliation(s)
- Zoë A Marshall
- Applied Sport, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, Wales, UK
| | - Kelly A Mackintosh
- Applied Sport, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, Wales, UK
| | - Michael J Lewis
- Applied Sport, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, Wales, UK
| | - Elizabeth A Ellins
- Swansea University Medical School, Institute of Life Science, Swansea University, Swansea, Wales, UK
| | - Melitta A McNarry
- Applied Sport, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, Wales, UK
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Sawani S, Siddiqui AR, Azam SI, Humayun K, Ahmed A, Habib A, Naz S, Tufail M, Iqbal R. Lifestyle changes and glycemic control in type 1 diabetes mellitus: a trial protocol with factorial design approach. Trials 2020; 21:346. [PMID: 32312302 PMCID: PMC7171752 DOI: 10.1186/s13063-020-4205-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 02/25/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Type 1 diabetes (T1D) has been increasing globally over the past three decades. Self-monitoring of blood glucose is a challenge in both developed as well as developing countries. Self-management guidelines include maintaining logbooks for blood glucose, physical activity, and dietary intake that affect glycated hemoglobin (HbA1c) and a multitude of life-threatening acute complications. Innovative, cost-effective interventions along with beneficial lifestyle modifications can improve home-based self-monitoring of blood glucose in T1D patients. The overall objective of this study is to evaluate the relationship between maintaining log books for blood glucose levels, reinforcement by e-messages, and/or daily step count and changes in HbA1c. METHODS/DESIGN A randomized controlled trial will enroll participants aged 15 years and above in four groups. Each group of 30 participants will be working with a newly designed standard log book for documenting their blood glucose. The first group will be entirely on routine clinical care, the second group will be on routine care and will receive an additional e-device for recording step count (fit bit), the third group will receive routine care and daily motivational e-messages to maintain the log book, and the fourth group along with routine care will receive an e-device for measuring step count (fit bit) and e-messages about maintaining the log book. Patients will be enrolled from pediatric and endocrine clinics of a tertiary care hospital in Karachi. All groups will be followed up for a period of 6 months to evaluate outcomes. Log book data will be obtained every 3 months electronically or during a patient's clinic visit. HbA1c as a main outcome will be measured at baseline and will be evaluated twice every 3 months. A baseline questionnaire will determine the socio-demographic, nutritional, and physical activity profile of patients. Clinical information for T1D and other co-morbidities for age of onset, duration, complications, hospitalizations, habits for managing T1D, and other lifestyle characteristics will be ascertained. Behavioral modifications for maintaining daily log books as a routine, following e-messages alone, fit bit alone, or e-messages plus using fit bit will be assessed for changes in HbA1c using a generalized estimated equation. DISCUSSION The proposed interventions will help identify whether maintaining log books for blood glucose, motivational e-messages, and/or daily step count will reduce HbA1c levels. TRIAL REGISTRATION ClinicalTrials.gov, NCT03864991. March 6, 2019.
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Affiliation(s)
- Sobiya Sawani
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Amna Rehana Siddiqui
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Syed Iqbal Azam
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Khadija Humayun
- Department of Pediatrics & Child Health, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Asma Ahmed
- Department of Medicine, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Aysha Habib
- Department of Pathology & Laboratory Medicine, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Sabahat Naz
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Mayera Tufail
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
| | - Romaina Iqbal
- Department of Community Health Sciences, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.,Department of Medicine, The Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan
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Czenczek-Lewandowska E, Leszczak J, Baran J, Weres A, Wyszyńska J, Lewandowski B, Dąbrowski M, Mazur A. Levels of Physical Activity in Children and Adolescents with Type 1 Diabetes in Relation to the Healthy Comparators and to the Method of Insulin Therapy Used. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16183498. [PMID: 31546871 PMCID: PMC6766014 DOI: 10.3390/ijerph16183498] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 02/07/2023]
Abstract
Given the fact that physical exertion leads to blood glucose fluctuations, type one diabetes mellitus (T1D) may potentially constitute a barrier for obtaining a sufficient amount of exercise. The main purpose of the study was to compare the level of physical activity between children with T1D (n = 215) and healthy controls (n = 115) and to assess the physical activity of the study group in relation to the applied method of insulin therapy, i.e., the use of insulin pen vs. insulin pump. The level of physical activity was assessed with a hip-worn tri-axial accelerometer (ActiGraph GT3X+) used by the subjects for an uninterrupted period of seven days. Children with T1D had significantly lower median values of total time of moderate (213.3 vs. 272.1 min), vigorous (135.3 vs. 19.6 min) and moderate-to-vigorous (347.4 vs. 467.4 min) physical activity compared to healthy peers respectively, (p < 0.001) in all cases. In addition, the total median number of steps was significantly lower (53,631 vs. 67,542 steps), (p < 0.001). The method of insulin therapy was not associated with significant differences in physical activity level (p > 0.001). The level of physical activity in children and adolescents with T1D is lower than in their healthy peers and does not depend on the insulin therapy method.
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Affiliation(s)
- Ewelina Czenczek-Lewandowska
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
- Correspondence: ; Tel.: +48-17-872-1153
| | - Justyna Leszczak
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Joanna Baran
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Aneta Weres
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Justyna Wyszyńska
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Bogumił Lewandowski
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Mariusz Dąbrowski
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
| | - Artur Mazur
- Faculty of Medicine, University of Rzeszów, 35-959 Rzeszów, Poland; (J.L.); (J.B.); (A.W.); (B.L.); (M.D.); (A.M.)
- Clinical Regional Hospital No. 2 in Rzeszów, Lwowska Street 60, 35-301 Rzeszów, Poland
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Czenczek-Lewandowska E, Leszczak J, Weres A, Baran J, Wyszyńska J, Grzegorczyk J, Lewandowski B, Mazur A. Sedentary behaviors in children and adolescents with type 1 diabetes, depending on the insulin therapy used. Medicine (Baltimore) 2019; 98:e15625. [PMID: 31083260 PMCID: PMC6531069 DOI: 10.1097/md.0000000000015625] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/27/2019] [Accepted: 04/17/2019] [Indexed: 11/25/2022] Open
Abstract
Assessment of sedentary behaviors in children and adolescents with type 1 diabetes (T1D), relative to the method of insulin therapy used, and in comparison to healthy controls.The study group consisted of 215 children with T1D, including 109 (50.7%) insulin pen and 106 (49.3%) insulqsain pump users. The control group comprised 115 healthy children. The subjects' sedentary time was measured with a tri-axial accelerometer ActiGraph GT3X+, used continuously for 7 days.The diabetes group was characterized by a significantly higher "% in sedentary time" score (P = .024) and a lower "mean daily breaks in sedentary time" result (P = .007), which means that they spent much more time on sedentary activities compared to the control group. There were no significant differences between the children using insulin pump and insulin pen in the "% in sedentary time" score (P = .294) and "mean daily breaks in sedentary time" (P = .251).The T1D is a serious encumbrance, leading to longer duration of sedentary time, in comparison to healthy controls. The type of insulin therapy did not significantly affect the percentage of the wear-day spent in sedentary time and mean daily breaks in sedentary time.
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Affiliation(s)
| | | | | | | | | | | | | | - Artur Mazur
- Faculty of Medicine, University of Rzeszów
- Clinical Provincial Hospital No. 2, Rzeszów, Poland
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Tang L, Li N, Jian W, Kang Y, Yin B, Sun S, Guo J, Sun L, Ta D. Low-intensity pulsed ultrasound prevents muscle atrophy induced by type 1 diabetes in rats. Skelet Muscle 2017; 7:29. [PMID: 29273088 PMCID: PMC5741922 DOI: 10.1186/s13395-017-0145-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 11/29/2017] [Indexed: 01/08/2023] Open
Abstract
Background Type 1 diabetes mellitus (T1DM) induces serious skeletal muscle atrophy. Low-intensity pulsed ultrasound (LIPUS) is a common treatment for skeletal muscle injury and is effective in accelerating the rate of muscle growth. However, to the best of our knowledge, whether LIPUS can improve skeletal muscle atrophy in type 1 diabetic rats has not been investigated. Methods The rats were randomly divided into four groups: the normal control group (NC); the sham-treated diabetic control group (DC); the diabetic, insulin-treated group (DI) as a positive control; and the diabetic LIPUS therapy group (DL). The DL rats were treated with LIPUS (1 MHz, 30 mW/cm2) on the gastrocnemius for 20 min/day. Results After 6 weeks, the rats in the DC group showed severe muscle atrophy. However, LIPUS significantly improved type 1 diabetes-induced muscle atrophy, as evidenced by significantly enhanced muscle cross-sectional area, muscle mass, and strength. Moreover, compared with the DC group, LIPUS significantly activated Akt and upregulated the expression of mTOR, and LIPUS downregulated the expression of MSTN, its receptor ActRIIB, and FoxO1. Conclusions These results indicate that LIPUS improved muscle atrophy induced by type 1 diabetes, and the MSTN/Akt/mTOR&FoxO1 signaling pathway may play a role in this improvement.
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Affiliation(s)
- Liang Tang
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China
| | - Nan Li
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China.,Leisure Management College, Xi'an Eurasia University, Xi'an, China
| | - Wenqi Jian
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China
| | - Yiting Kang
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China
| | - Bo Yin
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China
| | - Shuxin Sun
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China
| | - Jianzhong Guo
- Shaanxi Key Laboratory of Ultrasonics, Shaanxi Normal University, Xi'an, China
| | - Lijun Sun
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, 710119, China.
| | - Dean Ta
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China. .,Key Laboratory of Medical Imaging Computing and Computer Assisted Intervention (MICCAI) of Shanghai, Shanghai, China.
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Gourgari E, Dabelea D, Rother K. Modifiable Risk Factors for Cardiovascular Disease in Children with Type 1 Diabetes: Can Early Intervention Prevent Future Cardiovascular Events? Curr Diab Rep 2017; 17:134. [PMID: 29101482 PMCID: PMC5670186 DOI: 10.1007/s11892-017-0968-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE OF REVIEW Patients with type 1 diabetes have increased risk for cardiovascular disease. The purpose of this review is to examine the following: i) current evidence for subclinical cardiovascular disease (CVD) in children with type 1 diabetes (T1DM) ii) known modifiable risk factors for CVD and their relationship to subclinical CVD in this population iii) studies that have addressed these risk factors in order to improve CVD outcomes in children with T1DM RECENT FINDINGS: Subclinical CVD presents in children as increased carotid intima-media thickness, increased arterial stiffness, and endothelial and myocardial dysfunction. Modifiable risk factors for CVD include hyperglycemia, hyperlipidemia, obesity, hypertension, depression, and autonomic dysfunction. Very few randomized controlled studies have been done in children with T1DM to examine how modification of these risk factors can affect their CVD. Children with T1DM have subclinical CVD and multiple modifiable risk factors for CVD. More research is needed to define how modification of these factors affects the progression of CVD.
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Affiliation(s)
- Evgenia Gourgari
- Department of Pediatrics, Georgetown University, Washington DC, USA
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology & Genetics (PDEGEN) and Pediatric Endocrinology Inter-Institute Training Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Bethesda, MD USA
| | - Dana Dabelea
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Aurora, CO USA
| | - Kristina Rother
- Section on Pediatric Diabetes and Metabolism, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD USA
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