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.

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.

scholarly journals Association of Reallocating Time in Different Intensities of Physical Activity with Weight Status Changes among Normal-Weight Chinese Children: A National Prospective Study

2020 ◽  
Vol 17 (16) ◽  
pp. 5761
Author(s):  
Kaiyun Tan ◽  
Li Cai ◽  
Lijuan Lai ◽  
Zhaohuan Gui ◽  
Xia Zeng ◽  
...  
Keyword(s):  
Physical Activity ◽  
Weight Status ◽  
Sedentary Time ◽  
Factor Model ◽  
Normal Weight ◽  
Single Factor ◽  
Partition Model ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Single Factor Model

Background: Time spent in different intensity-specific physical activities is codependent, but the substitution effect of different activities on weight status changes in children remains unclear. This study aims to investigate the prospective association between reallocating time in different intensities of physical activity and weight status changes among Chinese children. Methods: A national sample of 15,100 normal-weight children aged 7–18 years (46.7% boys) were recruited in September 2013 and followed up for nine months. Vigorous-intensity physical activity (VPA), moderate-intensity physical activity (MPA), walking, and sedentary time were obtained by International Physical Activity Questionnaire Short Form (IPAQ-SF). Height and weight were objectively measured, by which body mass index (BMI) and BMI z-score were calculated. Weight status was classified by the Chinese criteria for 7- to 18-year-old children. Isotemporal substitution analyses (including single-factor model, partition model, and isotemporal substitution model) were applied to examine the association of time allocation with weight status changes. Results: Each 30 min/day of increase in VPA was favorably associated with a 13.2% reduced risk of incident overweight/obesity in a single-factor model and a 15.6% reduced risk in a partition model. Negative associations were found between VPA, MPA, walking and the risk of being underweight in the single-factor model, but not in the partition model. In substitution models, replacing 30 min/day sedentary time with an equal amount of VPA was favorably associated with a 16.1% reduction of the risk of being overweight/obese. Conclusion: These findings highlight the need for promoting vigorous-intensity physical activity in children.

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