Validation of an Electronic Pedometer for Measurement of Physical Activity in Children

1999 ◽  
Vol 11 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Colleen K. Kilanowski ◽  
Angela R. Consalvi ◽  
Leonard H. Epstein
Keyword(s):  
Physical Activity ◽  
High Intensity ◽  
Behavioral Observation ◽  
Activity Measurement ◽  
Triaxial Accelerometer ◽  
Recreational Activities ◽  
Low Intensity

Activity measurement using a uniaxial electronic pedometer was compared to a triaxial accelerometer and behavioral observation measurements for ten 7−12-year-old children studied during high intensity recreational and low intensity classroom periods. Correlations between all measures were significant for recreational and classroom periods combined, and recreational periods alone (r’s > .90, p < .001). Correlations between the pedometer and accelerometer were significantly lower during classroom versus recreational activities (0.98 vs. 0.50, p < .05). This may be due in part to the uniaxial pedometer being sensitive only to vertical and not back and forward or side to side movement.

scholarly journals It’s about Time: Effects of Physical Exertion on Duration Estimates

2019 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Britton W. Brewer ◽  
Lawrence O. Schwartz ◽  
Allen E. Cornelius ◽  
Judy L. Van Raalte ◽  
Edmundo L. Urbina ◽  
...  
Keyword(s):  
Physical Activity ◽  
High Intensity ◽  
Perceived Exertion ◽  
Physical Exertion ◽  
Fundamental Aspect ◽  
Time Effects ◽  
Task Duration ◽  
Low Intensity ◽  
D Values ◽  
And Task

Background: Task duration is a fundamental aspect of exercise, but little is known about how completed bouts of physical activity are perceived. Consequently, the purpose of the five experiments conducted for this investigation was to examine the effects of engaging in physical tasks on retrospective duration estimates with college student participants. Methods: Across the five experiments, participants were 113 college students (82 women, 31 men). In Experiments 1 and 2, participants provided duration estimates of a period spent engaging in physical activity or rest. In Experiments 3, 4, and 5, participants provided duration estimates of periods spent engaged in physical tasks of high intensity and low intensity. Results: In Experiments 1, 2, and 3, participants engaged in physical activity tended to perceive durations as shorter than participants at rest. When completing less familiar tasks (Experiments 4 and 5), however, participants recalled a high intensity bout of physical activity as lasting longer than a low intensity bout of physical activity of comparable duration. Cohen’s d values for physical activity effects on duration estimates ranged from 0.40 to 1.60. Conclusion: The findings, which partially support a contextual-change interpretation, suggest that factors, such as perceived exertion and task familiarity, affect retrospective duration estimates.

Validation of the Digiwalker™ Pedometer for Measuring Physical Activity in Young Children

2005 ◽  
Vol 17 (4) ◽  
pp. 345-352 ◽  
Author(s):  
David P. McKee ◽  
Colin A.G. Boreham ◽  
Marie H. Murphy ◽  
Alan M. Nevill
Keyword(s):  
Physical Activity ◽  
Young Children ◽  
Rating Scale ◽  
Nursery School ◽  
School Setting ◽  
Behavioral Observation ◽  
Activity Measurement ◽  
The Mean ◽  
Activity Rating ◽  
Multilevel Linear Regression

Activity measurement using a uniaxial pedometer was validated against behavioral observation using the Children’s Activity Rating Scale (CARS) in 30 three- to four-year-old children in a nursery school setting. Correlations were calculated for individual children, whereas the relationship for the total group was investigated using multilevel linear regression. The mean counts for boys and girls for the Digiwalker™ were 66.8 (± 64.0) and 47.4 (± 61.3; p < .01) steps per 3 minutes, respectively, whereas the mean CARS scores for boys and girls were 1.8 (± 0.6) and 1.6 (± 0.6; p < .01), respectively. Within-child correlations for CARS versus Digiwalker counts ranged from 0.64 to 0.95 with a median value of 0.86, whereas the multilevel analysis provided strong evidence of a relationship between CARS and Digiwalker (all p < .001). Data from the current study show that gender differences in physical levels exist in very young children and support the utility of the Digiwalker pedometer for assessing physical activity in this age group.

Physical-work ability and chronic musculoskeletal complaints are related to leisure-time physical activity: Cross-sectional study among manual workers aged 50–70 years

2019 ◽  
Vol 47 (3) ◽  
pp. 375-382 ◽  
Author(s):  
Kristoffer L. Norheim ◽  
Afshin Samani ◽  
Jakob Hjort Bønløkke ◽  
Øyvind Omland ◽  
Pascal Madeleine
Keyword(s):  
Physical Activity ◽  
Work Ability ◽  
High Intensity ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Physical Work ◽  
Musculoskeletal Complaints ◽  
Low Intensity ◽  
Intensity Physical Activity ◽  
Physical Work Ability

Aims: To investigate the associations between both high- and low-intensity leisure-time physical activity on physical-work ability and chronic musculoskeletal complaints among manual workers aged 50–70 years. Methods: In this cross-sectional study, 1763 manual workers (mean age 57.1, SD ± 4.7 years) replied to questions about leisure-time physical activity, physical-work ability, chronic musculoskeletal complaints as well as health and lifestyle factors. Ordinal and binomial logistic regression models were constructed to assess the influence of the duration of both low- and high-intensity physical activity on physical-work ability and chronic musculoskeletal complaints, respectively. Models were adjusted for gender, age, smoking, alcohol intake, body mass index, physical-work demand, work experience, chronic disease and, regarding physical-work ability, also for chronic musculoskeletal complaints. Results: A statistically significant association between greater physical-work ability and high-intensity physical activity was found for workers engaged in 3–4 h/wk and ⩾ 5 h/wk (OR 1.59, 95% CI 1.15–2.19 and OR 1.56, 95% CI 1.10–2.22, respectively). For both high- and low-intensity physical activity, a duration of 3–4 h/wk was associated with lower odds of reporting chronic musculoskeletal complaints in the knees (OR 0.65, 95% CI 0.42–1.00 and OR 0.61, 95% CI 0.38–0.99, respectively). Conclusions: Engaging in ⩾ 3 h/wk of high-intensity leisure-time physical activity was associated with greater physical-work ability among manual workers aged 50–70 years. Both high- and low-intensity physical activity related to lower odds of having chronic musculoskeletal complaints in the knees.

High-intensity versus low-intensity physical activity or exercise in patients with hip or knee osteoarthritis

2012 ◽  
Author(s):  
Jean-Philippe Regnaux ◽  
Ludovic Trinquart ◽  
Isabelle Boutron ◽  
Christelle Nguyen ◽  
Lucie Brosseau ◽  
...  
Keyword(s):  
Physical Activity ◽  
Knee Osteoarthritis ◽  
High Intensity ◽  
Low Intensity ◽  
Intensity Physical Activity

Abstract 18838: The Impacts of Burst Exercise Compared to Sustained Exercise on the Cardiometabolic Status and Exercise Behavior of Newly Diagnosed Type 2 Diabetic Patients

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Avinash Pandey ◽  
Paul Poirier
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
High Intensity ◽  
Intervention Group ◽  
Exercise Adherence ◽  
Newly Diagnosed ◽  
Target Heart Rate ◽  
Cardiopulmonary Fitness ◽  
Low Intensity

Introduction: Physical activity is an integral part of type 2 diabetes (NIDDM) rehabilitation. Historically, NIDDM rehabilitation has employed low intensity, sustained exercise. Recent studies have demonstrated cardiometabolic benefits of high intensity burst exercise in healthy volunteers. The impacts of burst exercise in NIDDM have yet to be assessed. This study compared the impacts of burst and sustained exercises on cardiometabolic factors including: BMI, exercise adherence, cardiopulmonary fitness, HbA1C and lipid profiles in newly diagnosed NIDDM. Hypothesis: High-intensity burst physical activity may yield greater cardiometabolic benefits than low intensity, sustained exercise. Methods: This was a single center, single blind randomized trial. 76 patients, within three months of diagnosis of NIDDM, were recruited. Patients were randomized to a control group prescribed 30 minutes of exercise five days a week at 65% of target heart rate or an intervention group prescribed ten minutes of exercise three times a day, five days a week at 85% of target heart rate. All patients underwent routine blood tests, stress tests and logged exercise duration and frequency in logbooks. Patients were excluded from the study if they had evidence for diabetic end organ damage or cardiovascular disease, or took medications which would impact the cardiometabolic parameters assessed in this study. Results: Of 225 patients screened, 76 patients were recruited for the study with an average age of 67; 70% were male. No significant differences in demographics were noted between groups. Patients prescribed the burst regimen exercised 27% more than the control (p<0.01). Burst exercise patients also showed a 2.3 fold greater improvement in HbA1c (p<0.01). The intervention group also improved more in their lipid profile, BMI and cardiopulmonary fitness (as measured by stress testing). Linear regression analysis revealed greater improvements in both HbA1C and BMI with burst exercise than with sustained exercise, for the same duration of exercise. Conclusions: The burst exercise regimen significantly improved the cardiometabolic and fitness status of newly diagnosed NIDDM. This regimen may represent a simple and effective way to improve diabetes rehabilitation.

Effect of Low-Intensity Physical Activity and Moderate- to High-Intensity Physical Exercise During Adjuvant Chemotherapy on Physical Fitness, Fatigue, and Chemotherapy Completion Rates: Results of the PACES Randomized Clinical Trial

2015 ◽  
Vol 33 (17) ◽  
pp. 1918-1927 ◽  
Author(s):  
Hanna van Waart ◽  
Martijn M. Stuiver ◽  
Wim H. van Harten ◽  
Edwin Geleijn ◽  
Jacobien M. Kieffer ◽  
...  
Keyword(s):  
Physical Activity ◽  
Adjuvant Chemotherapy ◽  
High Intensity ◽  
Exercise Program ◽  
Completion Rates ◽  
Low Intensity ◽  
Activity Program ◽  
Home Based ◽  
Intensity Physical Activity

Purpose We evaluated the effectiveness of a low-intensity, home-based physical activity program (Onco-Move) and a moderate- to high-intensity, combined supervised resistance and aerobic exercise program (OnTrack) versus usual care (UC) in maintaining or enhancing physical fitness, minimizing fatigue, enhancing health-related quality of life, and optimizing chemotherapy completion rates in patients undergoing adjuvant chemotherapy for breast cancer. Patients and Methods We randomly assigned patients who were scheduled to undergo adjuvant chemotherapy (N = 230) to Onco-Move, OnTrack, or UC. Performance-based and self-reported outcomes were assessed before random assignment, at the end of chemotherapy, and at the 6-month follow-up. We used generalized estimating equations to compare the groups over time. Results Onco-Move and OnTrack resulted in less decline in cardiorespiratory fitness (P < .001), better physical functioning (P ≤ .001), less nausea and vomiting (P = .029 and .031, respectively) and less pain (P = .003 and .011, respectively) compared with UC. OnTrack also resulted in better outcomes for muscle strength (P = .002) and physical fatigue (P < .001). At the 6-month follow-up, most outcomes returned to baseline levels for all three groups. A smaller percentage of participants in OnTrack required chemotherapy dose adjustments than those in the UC or Onco-Move groups (P = .002). Both intervention groups returned earlier (P = .012), as well as for more hours per week (P = .014), to work than the control group. Conclusion A supervised, moderate- to high-intensity, combined resistance and aerobic exercise program is most effective for patients with breast cancer undergoing adjuvant chemotherapy. A home-based, low-intensity physical activity program represents a viable alternative for women who are unable or unwilling to follow the higher intensity program.

scholarly journals Adherence to and satisfaction with low-intensity physical activity and supervised moderate-high intensity exercise during chemotherapy for breast cancer

2019 ◽  
Vol 28 (5) ◽  
pp. 2115-2126 ◽  
Author(s):  
Hanna van Waart ◽  
Laurien M. Buffart ◽  
Martijn M. Stuiver ◽  
Wim H. van Harten ◽  
Gabe S. Sonke ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Physical Activity ◽  
High Intensity ◽  
High Intensity Exercise ◽  
Low Intensity ◽  
Intensity Physical Activity

Roles of intensity and duration of nocturnal exercise in causing phase delays of human circadian rhythms.

1997 ◽  
Vol 273 (3) ◽  
pp. E536 ◽  
Author(s):  
O M Buxton ◽  
S A Frank ◽  
M L'Hermite-Balériaux ◽  
R Leproult ◽  
F W Turek ◽  
...  
Keyword(s):  
Physical Activity ◽  
Circadian Rhythms ◽  
High Intensity ◽  
Real Life ◽  
Phase Shifts ◽  
High Intensity Exercise ◽  
Moderate Intensity ◽  
Low Intensity ◽  
Human Circadian Rhythms ◽  
Low Intensity Exercise

To determine the roles of intensity and duration of nocturnal physical activity in causing rapid phase shifts of human circadian rhythms, eight healthy men were studied three times under constant conditions with no exercise, a 3-h bout of moderate-intensity exercise, or a 1-h bout of high-intensity exercise. Exercise stimulus was centered at 0100. Circadian phase was estimated from the onsets of the nocturnal elevation of plasma thyrotropin (TSH) and melatonin. Mean phase shifts of TSH onsets were -18 +/- 8 (baseline), -78 +/- 10 (low-intensity exercise, P < 0.01), and -95 +/- 19 min (high-intensity exercise, P < 0.01). Mean phase delays of melatonin onsets were -23 +/- 10 (baseline), -63 +/- 8 (low-intensity exercise, P < 0.04), and -55 +/- 15 min (high-intensity exercise, P < 0.12). Taken together with our previous findings, this study indicates that nocturnal physical activity may phase delay human circadian rhythms and demonstrates that phase-shifting effects may be determined with exercise durations and intensities compatible with the demands of a real-life setting.

High-intensity versus low-intensity physical activity or exercise in people with hip or knee osteoarthritis

2015 ◽  
Author(s):  
Jean-Philippe Regnaux ◽  
Marie-Martine Lefevre-Colau ◽  
Ludovic Trinquart ◽  
Christelle Nguyen ◽  
Isabelle Boutron ◽  
...  
Keyword(s):  
Physical Activity ◽  
Knee Osteoarthritis ◽  
High Intensity ◽  
Low Intensity ◽  
Intensity Physical Activity

scholarly journals Perceived Exertion in Physical Activity Measurement Across the Lifecourse: Results from SWAN

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 902-903
Author(s):  
Kelly Ylitalo ◽  
Carrie Karvonen-Gutierrez ◽  
Barbara Sternfeld ◽  
Kelley Pettee Gabriel
Keyword(s):  
Physical Activity ◽  
High Intensity ◽  
Perceived Exertion ◽  
Absolute Intensity ◽  
Individual Characteristics ◽  
High Intensity Exercise ◽  
Moderate Intensity ◽  
Adult Women ◽  
Low Intensity ◽  
Perceived Intensity

Abstract Physical activity (PA) guidelines recommend 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity PA, in addition to muscle strengthening activities, each week. Many questionnaires ascertain PA frequency, duration, and intensity to benchmark achievement of PA recommendations. However, most scoring algorithms utilize absolute intensity estimates when exertion may be influenced by age or other sociodemographic or health characteristics. This study compared PA estimates with and without adjustments for perceived exertion and determined if that difference was associated with individual characteristics. Women (n=2,711) from the longitudinal Study of Women’s Health Across the Nation who completed ≥3 Kaiser Physical Activity Surveys (KPAS) across 8 biennial visits were included (baseline age: 46.4±2.7 years). KPAS responses were converted to metabolic equivalent of a task (METs) using the Compendium of Physical Activities to estimate absolute and perceived intensity-adjusted MET values. Latent class growth modeling identified subgroups of participants following similar patterns of change in the difference between absolute intensity-based and perceived intensity-adjusted estimates across time. Four major trajectory classes emerged with patterns reflecting: (1) lessening high-intensity exercise (2.2%); (2) increasingly high-intensity exercise (3.1%); (3) consistently moderate-intensity exercise (92.0%); and (4) consistently low-intensity exercise (2.8%). Consistently low-intensity exercisers, for whom absolute intensity-based estimates exceeded perceived intensity-adjusted estimates, were more likely to be Japanese or Chinese (p&lt;0.001) and have lower BMI (p=0.05). However, for most participants, absolute intensity-based estimates approximated perceived intensity-adjusted estimates over time, suggesting that traditional PA scoring techniques may provide sufficient estimates for PA in longitudinal cohort studies of mid-life and older adult women.

Sign in / Sign up

Export Citation Format

Share Document