When We Sit: Textile Electromyography Identifies Decreasing Muscle Activity and Implications for Metabolic Health DOI Creative Commons
Christian J. Brakenridge, Suvi Lamberg, Timo Rantalainen

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract Prolonged sitting is ubiquitous and increases risk of diabetes, heart disease some cancers. A suspected mechanism behind the adverse cardiometabolic effects prolonged high prevalence muscle inactivity. Understanding activity when we sit may be crucial for developing effective interventions. Using fabric-embedded wearable electrodes (electromyography; EMG), muscles can directly examined sit. We during 7,684 bouts in daily living using EMG shorts 84 adults from three separate cohorts (46% female; mean age (SD): 43.7yr (18.7yr). When sit, thigh decreases, but that are preceded by more-intense longer-duration physical show more sustained persistence activity. More frequent intense interruptions to result 5 extra minutes per hour time. These findings provide new insights into metabolic health risks suggest practical ways counteract them.

Language: Английский

Causal Association Between Sedentary Behaviors and Health Outcomes: A Systematic Review and Meta-Analysis of Mendelian Randomization Studies DOI
Ying Gao, Qingyang Li, Luyao Yang

et al.

Sports Medicine, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Language: Английский

Citations

6
Free-Living Muscle Activity in Type 2 Diabetes: Sitting, Standing and Walking DOI Creative Commons
Suvi Lamberg, Christian J. Brakenridge, Ying Gao

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract AIMS: Using thigh-worn accelerometers and wearable electromyographic (EMG) shorts, we investigated muscle activity during sitting, standing walking in adults with type 2 diabetes. METHODS: Isometric maximal voluntary contraction measures for quadriceps, hamstring, gluteal groups normalized the EMG signal to individual maximum capacity. Participants concurrently wore shorts 3.2 days, average amplitude (aEMG) was assessed from within accelerometer-derived standing, times. RESULTS: Muscle examined used only 2.7–4.4% of their capacity (%EMGMVC) were inactive 75-80% measurement time. Sitting time significantly correlated inactivity across all three groups, but inversely so hamstring aEMG (r = -0.51). Standing 0.51) 0.48) daily hamstrings. Relative 1.3–5.6 times higher 3.1–15.2 higher, indicating varied inter-individual responsiveness. CONCLUSIONS: Reducing especially favor walking, may benefit engagement help prevent high levels Individual variability responses highlights potential personalize recommendations on walking.

Language: Английский

Citations

0
Optimal Frequency of Interrupting Prolonged Sitting for Cardiometabolic Health: A Systematic Review and Meta‐Analysis of Randomized Crossover Trials DOI
Mingyue Yin, Kai Xu, Jianfeng Deng

et al.

Scandinavian Journal of Medicine and Science in Sports, Journal Year: 2024, Volume and Issue: 34(12)

Published: Dec. 1, 2024

Increasing evidence highlights the efficacy of interruptions in prolonged sitting (i.e., activity/sedentary breaks) for improving cardiometabolic health, but precise conclusions and recommendations regarding optimal interruption frequency remain poorly defined. This systematic review meta-analysis aimed to directly compare effect different frequencies interrupting on health determine potential moderators. Randomized crossover trials with at least two compared a condition were identified via review. We acute effects high-frequency (≤ 30 min per bout, HF) versus low-frequency (> LF) protocols various outcomes three-level pooled evaluated within random-effects model exploration sources heterogeneity through subgroup analyses. The quality was assessed using Grading Recommendations, Assessment, Development, Evaluation (GRADE) approach. Thirteen studies 211 participants (24-66 years, 41% female) included. When comparing HF LF condition, had significantly greater reduction glucose (9 [n = 740]; Hedge's g -0.30, 95% CI [-0.57, -0.03], p 0.03; I

Language: Английский

Citations

3
Electromyography of Sedentary Behavior: Identifying Potential for Cardiometabolic Risk Reduction DOI Creative Commons
Suvi Lamberg, Christian J. Brakenridge, David W. Dunstan

et al.

Medicine & Science in Sports & Exercise, Journal Year: 2024, Volume and Issue: 57(1), P. 11 - 22

Published: Aug. 29, 2024

Muscle activation during interruptions to prolonged sedentary time is a hypothesized mechanism underlying observed cardiometabolic benefits. We examined associations of quadriceps and hamstring muscle activity patterns with risk markers how these varied between different sitting-interruption countermeasures.

Language: Английский

Citations

1
A comparative analysis of the muscular and aerobic exertion during simulated activities of daily living between men with overweight and obesity versus normal-weight DOI
Q.-H. Li, Arto J. Pesola, Christian J. Brakenridge

et al.

Sport Sciences for Health, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Language: Английский

Citations

0
When We Sit: Textile Electromyography Identifies Decreasing Muscle Activity and Implications for Metabolic Health DOI Creative Commons
Christian J. Brakenridge, Suvi Lamberg, Timo Rantalainen

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract Prolonged sitting is ubiquitous and increases risk of diabetes, heart disease some cancers. A suspected mechanism behind the adverse cardiometabolic effects prolonged high prevalence muscle inactivity. Understanding activity when we sit may be crucial for developing effective interventions. Using fabric-embedded wearable electrodes (electromyography; EMG), muscles can directly examined sit. We during 7,684 bouts in daily living using EMG shorts 84 adults from three separate cohorts (46% female; mean age (SD): 43.7yr (18.7yr). When sit, thigh decreases, but that are preceded by more-intense longer-duration physical show more sustained persistence activity. More frequent intense interruptions to result 5 extra minutes per hour time. These findings provide new insights into metabolic health risks suggest practical ways counteract them.

Language: Английский

Citations

0