scholarly journals Objectively Measured Moderate- and Vigorous-Intensity Physical Activity but Not Sedentary Time Predicts Insulin Resistance in High-Risk Individuals

Diabetes Care ◽  
2009 ◽  
Vol 32 (6) ◽  
pp. 1081-1086 ◽  
Author(s):  
U. Ekelund ◽  
S. Brage ◽  
S. J. Griffin ◽  
N. J. Wareham ◽  
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
High Risk ◽  
Sedentary Time ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Objectively Measured

scholarly journals Objectively Measured Sedentary Time May Predict Insulin Resistance Independent of Moderate- and Vigorous-Intensity Physical Activity

Diabetes ◽  
2009 ◽  
Vol 58 (8) ◽  
pp. 1776-1779 ◽  
Author(s):  
H. J.F. Helmerhorst ◽  
K. Wijndaele ◽  
S. Brage ◽  
N. J. Wareham ◽  
U. Ekelund
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
Sedentary Time ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Objectively Measured

scholarly journals Normative Data of Objectively Measured Physical Activity and Sedentary Time in Community—Dwelling Older Japanese

2021 ◽  
Vol 18 (7) ◽  
pp. 3577
Author(s):  
Harukaze Yatsugi ◽  
Tao Chen ◽  
Si Chen ◽  
Kenji Narazaki ◽  
Sho Nagayoshi ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Time ◽  
Community Dwelling ◽  
Normative Values ◽  
Metabolic Equivalents ◽  
Japanese Adults ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Objectively Measured ◽  
Lower Adherence

Background: The amounts of moderate-to-vigorous-intensity physical activity (MVPA), light-intensity physical activity (LPA), and sedentary time (ST) by sex, age, and body mass index (BMI) in older Japanese adults have not been known. We conducted this study to determine the actual physical activity (PA) and ST in this population. Subjects and Methods: A total of 3998 community-dwelling Japanese adults aged ≥65 years were investigated. Their levels of PA and ST and number of steps taken daily were assessed for seven consecutive days by a tri-axial accelerometer. Normative values of daily PA and ST were analyzed by age and BMI groups in the men and the women and are presented as mean, median, or decile. Results: The subjects generally adhered to the PA guideline, i.e., ≥10 metabolic equivalents (METs)·hour MVPA per week. Older age was associated with lower adherence to the PA guideline. Conclusions: Normative values (mean, median, or decile) were yielded for MVPA, LPA, and ST based on accelerometer readings in a large sample of older community-dwelling Japanese adults. One-half of the subjects’ waking time was spent being sedentary, and >70% of the subjects met the current PA guideline by engaging in MVPA.

Metabolic and lifestyle determinants of glycemic variability in persons at high risk of type 2 diabetes: a study with continuous monitoring of diet, physical activity, and glucose level. (Preprint)

2021 ◽  
Author(s):  
Su Hyun Park ◽  
Jiali Yao ◽  
Clare Whitton ◽  
Xin Hui Chua ◽  
Suresh Rama Chandran ◽  
...  
Keyword(s):  
Physical Activity ◽  
High Risk ◽  
Glycemic Variability ◽  
Tolerance Test ◽  
Glucose Levels ◽  
Intensity Physical Activity ◽  
Time In Range ◽  
Vigorous Intensity ◽  
Mean Glucose

BACKGROUND Frequent and large fluctuations in blood glucose concentration during the day may increase risk of type 2 diabetes. It remains unclear how diet and physical activity affect glycemic variability in real-world conditions in persons without diabetes. OBJECTIVE We examined metabolic and lifestyle determinants (diet, physical activity, and sleep) of blood glucose levels over a seven-day period in people at high risk for diabetes METHODS Twenty-eight participants with a mean age of 46.0 (SD 9.9) years and a mean body mass index (BMI) of 27.5 (SD 1.8) kg/m2 underwent a mixed meal tolerance test to assess glucose homeostasis at baseline. Subsequently, they wore an accelerometer to assess movement behaviors, recorded their dietary intakes through a mobile phone application, and wore a flash glucose monitoring device that measured glucose levels every 15 min for seven days. Generalized estimating equation models were used to assess the associations of metabolic and lifestyle risk factors with daily mean glucose levels (mmol/L), the coefficient of variation (CV%) of glucose levels, and time-in-range (3.0 to 7.8 mmol/L, %). RESULTS A higher BMI (β = 0.12 per kg/m2; P = 0.01), body fat (β = 0.03 per kg; P = 0.01), and selected markers of hyperglycemia and insulin resistance from the meal tolerance test were associated with higher mean glucose levels during the seven days. Moderate-to-vigorous intensity physical activity (β = -1.77 per hr./d, P = 0.008) and polyunsaturated fat intake (β = -2.23 per 5 energy %, P < 0.001) were independently associated with less variation in glucose levels (CV%). Higher protein (β = 0.90, P = 0.007) and polyunsaturated fatty acid (β = 3.21, P = 0.02) intakes were associated with more time-in-range. In contrast, higher carbohydrates intake was associated with less time-in-range (β = -0.59, P = 0.04). Sleep, sedentary behavior, or light intensity physical activity were not independently associated with glucose measures. CONCLUSIONS Body fatness was associated with higher mean glucose levels, and moderate-to-vigorous intensity physical activity was associated with less glycemic variability throughout a week. Diets with higher protein and polyunsaturated fat, and lower carbohydrates were associated with more time in normal glucose range. Physical activity and dietary composition can substantially influence glucose variation in people at high risk of diabetes.

scholarly journals Objectively Measured Sedentary Behavior and Physical Activity Across 3 Trimesters of Pregnancy: The Monitoring Movement and Health Study

2020 ◽  
pp. 1-8
Author(s):  
Bethany Barone Gibbs ◽  
Melissa A. Jones ◽  
John M. Jakicic ◽  
Arun Jeyabalan ◽  
Kara M. Whitaker ◽  
...  
Keyword(s):  
Physical Activity ◽  
Pregnancy Outcomes ◽  
Second Trimester ◽  
Gestational Weight ◽  
Excessive Gestational Weight Gain ◽  
Intensity Physical Activity ◽  
Steps Per Day ◽  
Vigorous Intensity ◽  
Adverse Pregnancy ◽  
Objectively Measured

Background: Though moderate- to vigorous-intensity physical activity is recommended, limited research exists on sedentary behavior (SED) during pregnancy. Methods: The authors conducted a prospective cohort study to describe objectively measured patterns of SED and activity during each trimester of pregnancy. Women wore thigh- (activPAL3) and waist-mounted (ActiGraph GT3X) activity monitors. SED and activity were compared across trimesters using likelihood ratio tests and described using group-based trajectories. Exploratory analyses associated SED and activity trajectories with adverse pregnancy outcomes and excessive gestational weight gain. Results: Pregnant women (n = 105; mean [SD] age = 31 [5] y; prepregnancy body mass index = 26.2 [6.6] kg/m2) had mean SED of 9.7, 9.5, and 9.5 hours per day (P = .062) across trimesters, respectively. Some activities differed across trimesters: standing (increased, P = .01), stepping (highest in second trimester, P = .04), steps per day (highest in second trimester, P = .008), and moderate- to vigorous-intensity physical activity (decreased, P < .001). Prolonged SED (bouts ≥ 30 min) and bouted moderate- to vigorous-intensity physical activity (≥10 min) were stable (P > .05). In exploratory analyses, higher SED and lower standing, stepping, and steps per day trajectories were associated with increased odds of adverse pregnancy outcomes (P < .05). No trajectories were associated with excessive gestational weight gain. Conclusions: Pregnant women exhibited stable SED of nearly 10 hours per day across pregnancy. Future research evaluating SED across pregnancy and adverse pregnancy outcome risk is warranted.

Objectively Measured Age-Related Changes in the Intensity Distribution of Daily Physical Activity in Adults

2009 ◽  
Vol 6 (4) ◽  
pp. 419-425 ◽  
Author(s):  
Makoto Ayabe ◽  
Takuya Yahiro ◽  
Myumi Yoshioka ◽  
Hiroyuki Higuchi ◽  
Yasuki Higaki ◽  
...  
Keyword(s):  
Physical Activity ◽  
Light Intensity ◽  
Daily Physical Activity ◽  
Men And Women ◽  
Age Related ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Objectively Measured ◽  
The Relationship ◽  
Age Related Changes

Background:The purpose of the present investigation was to examine the relationship between age and the intensity of the daily physical activity in men and women, aged 18 to 69 years.Methods:A total 507 volunteers continuously wore a pedometer with a uni-ax-ial accelerometer (Lifecorder, Kenz, Japan) for 7 days, to determine the number of steps (steps/day) as well as the time spent in physical activity (minutes/day) at light (below 3 METs), moderate (3 to 6 METs), and vigorous (above 6 METs) intensities, respectively. All procedures carried out in the present investigation were conducted from 1999 to 2000 in Japan.Results:The time spent in moderate to vigorous intensity physical activity significantly decreased with aging (P < 0.01). In contrast, the middle- to older-aged individuals spent a longer time in light intensity physical activity in comparison with the younger individuals (P < 0.05). Furthermore, these age-associated differences of physical activity were also significant, even though the number of steps did not differ significantly.Conclusions:These results indicate that the intensity of daily physical activity decreases with increasing age regardless of the amount of daily physical activity.

scholarly journals Objectively measured vigorous-intensity physical activity and its association with health-related outcomes in youth

2020 ◽  
Author(s):  
Antonio García-Hermoso ◽  
Yasmin Ezzatvar ◽  
Robinson Ramírez-Vélez ◽  
Jordi Olloquequi ◽  
Mikel Izquierdo
Keyword(s):  
Physical Activity ◽  
Intensity Physical Activity ◽  
Health Related ◽  
Vigorous Intensity ◽  
Objectively Measured

scholarly journals The Length and Number of Sedentary Bouts Predict Fibrinogen Levels in Postmenopausal Women

2020 ◽  
Vol 17 (9) ◽  
pp. 3051 ◽  
Author(s):  
Pascal Izzicupo ◽  
Andrea Di Blasio ◽  
Andrea Di Credico ◽  
Giulia Gaggi ◽  
Anastasios Vamvakis ◽  
...  
Keyword(s):  
Physical Activity ◽  
Postmenopausal Women ◽  
Menopausal Women ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Post Menopausal ◽  
Sedentary Bouts ◽  
Objectively Measured ◽  
New Strategies ◽  
Lying Down

Menopause is associated with adverse changes in coagulation homeostasis. We aimed to investigate the association between objectively measured sedentary behavior (SB) and SB bouts (i.e., number and length of SB bouts) vs. fibrinogen levels in post-menopausal women. Fifty-three post-menopausal women (age 59.8 ± 6.2 years, BMI 27.3 ± 4.4) wore a multisensory device (Sensewear Mini Armband, BodyMedia, Inc., Pittsburgh, PA) for 5 days, to measure SB and physical activity (PA). Blood samples were collected to measure serum fibrinogen. Fibrinogen was directly correlated with SB (r = −0.48, p < 0.01), lying down during awake time (r = −0.50, p < 0.01), and both medium (11–30 mins) and very long bouts (>1 h) of SB (r = −0.59, p < 0.01; r = −0.51, p < 0.01, respectively), and inversely correlated with moderate to vigorous-intensity physical activity (r = −0.39, p < 0.01). Furthermore, fibrinogen was also directly correlated with BMI (r = −0.28, p < 0.05). In postmenopausal women without prevalent cardiovascular disease, the number of prolonged and uninterrupted sedentary bouts is directly correlated with increased fibrinogen levels, regardless of PA and BMI. This result suggests the importance of delivering new strategies to counteract the increase of sedentariness and inactivity of the postmenopausal population.

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