RT3 Accelerometer Accuracy in Estimating Short Term Physical Activity in Individuals with Visual Impairments

2005 ◽  
Vol 22 (3) ◽  
pp. 265-276 ◽  
Author(s):  
Francis M. Kozub ◽  
Hyun-Kyoung Oh ◽  
Robert A. Rider
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Visual Impairments ◽  
Strong Relationship ◽  
Activity Levels ◽  
Validity And Reliability ◽  
Short Term ◽  
Reliability Estimates ◽  
Intraclass Correlations ◽  
Activity Form

The purpose of this study was to estimate validity and reliability for RT31 monitors when worn by 19 school age participants with visual impairments during physical education. Values from RT3 monitors were compared to observational data using the Children’s Physical Activity Form (CPAF). Estimates of reliability for the RT3 monitors were calculated by placing two monitors on participants during data collection and then calculating intraclass correlations using repeated measures. Validity estimates between RT3 monitors and CPAF scores resulted in a strong relationship (R = .89, p < .001, n = 19). Validity and reliability estimates indicate that the RT3 is a useful tool for measuring short term physical activity levels in adolescents with visual impairments.

Psychometric Properties and Analysis of the Physical Activity Social Influence Scale for Adults with Traumatic Brain Injuries

2007 ◽  
Vol 24 (2) ◽  
pp. 160-177 ◽  
Author(s):  
Simon J. Driver
Keyword(s):  
Physical Activity ◽  
Social Influence ◽  
Repeated Measures ◽  
Brain Injuries ◽  
Validity And Reliability ◽  
Confirmatory Factor Analyses ◽  
The Social ◽  
Confirmatory Factor ◽  
Intraclass Correlations ◽  
Post Hoc

The study consisted of (a) assessing the validity and reliability of the Social Influence Scale (SIS) for adults with brain injuries and (b) examining the types and sources of social influence and demographic variables that affect participants’ physical activity behaviors. Three confirmatory factor analyses, intraclass correlations, and a repeated measures MANOVA were completed on responses from 402 adults with brain injuries. Results provide evidence of the validity and reliability of the SIS, and post hoc analyses revealed that participants reported receiving different types of social influence from family, friends, and caregivers. Findings have implications for specialists and suggestions are provided on ways to enhance the physical activity participation of adults with brain injuries.

The Effects of the BAILAMOSTM Dance Program on Physical Activity Levels and Cognition of Older Latino Adults: A Pilot Study

2021 ◽  
pp. 089826432110209
Author(s):  
Guilherme M. Balbim ◽  
Susan Aguiñaga ◽  
Olusola A. Ajilore ◽  
Eduardo E. Bustamante ◽  
Kirk I. Erickson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Pilot Study ◽  
Health Education ◽  
Repeated Measures ◽  
Activity Levels ◽  
Cognitive Health ◽  
Physical Activity Levels ◽  
Global Cognition ◽  
Latino Adults ◽  
And Performance

Objective: To investigate the effects of the BAILAMOSTM dance program on physical activity (PA), cardiorespiratory, and cognitive health. Methods: A parallel, two-armed pilot study was conducted with 57 older Latinos randomized to the BAILAMOSTM dance program ( n = 28) or health education (HE) ( n = 29). We conducted two- and three-way repeated-measures ANOVAs. Results: BAILAMOSTM participants increased participation in leisure moderate-to-vigorous PA (LMVPA) ( F[1,53] = 3.17, p = .048, η2 G = .01) and performance in global cognition relative to HE participants ( F[1,52] = 4.19, p = .045, η2 G = .01). Attendance moderated increases in moderate PA, MVPA, LMVPA, and total PA ( p < .05). Participants of both groups with ≥75% attendance increased participation in PA. Among participants with <75% attendance, BAILAMOSTM participants increased PA relative to HE. Discussion: BAILAMOSTM positively impacted self-reported PA and global cognition in older Latinos. Even smaller doses of dance appear to impact self-reported PA levels.

Increasing Children’s School Time Physical Activity Using Structured Fitness Breaks

2003 ◽  
Vol 15 (2) ◽  
pp. 156-169 ◽  
Author(s):  
Philip W. Scruggs ◽  
Sandy K. Beveridge ◽  
Doris L. Watson
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Fifth Grade ◽  
Traditional Model ◽  
Activity Levels ◽  
Time Activity ◽  
Fifth Grade Students ◽  
School Time ◽  
Physical Activity Levels ◽  
Viable Method

Fifth-grade students’ physical activity levels were examined via heart rate telemetry and pedometry during school fitness and recess breaks. Twenty-seven students with a mean age of 11.03 (-.32) years participated in morning recess (MR), lunch recess (LR), and fitness breaks (FB) for three days. Structured FB’s consisted of students engaging in locomotor and nonlocomotor activities within an obstacle course framework, while recess breaks followed a traditional model. Results from repeated measures ANOVAs indicated students engaged in significantly more physical activity during FB than MR and LR. Fitness breaks provided a viable method for increasing children’s school time activity levels.

scholarly journals Measures of Self-Perception, Level of Physical Activity, and Body Mass Index of Participants of Sports Education Camps for Youths with Visual Impairments

2019 ◽  
Vol 113 (1) ◽  
pp. 43-56
Author(s):  
John McMahon ◽  
Robert S. Wall Emerson ◽  
Paul Ponchillia ◽  
Amy Curtis
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Mass ◽  
Low Vision ◽  
Visual Impairments ◽  
Secondary Data ◽  
Intervention Model ◽  
Self Perception ◽  
Short Term ◽  
First Time

Introduction: This study explored the relationship between first-time or repeat participation at a sports education camp and demographic variables of gender, age, race or ethnicity, measures of self-perception, body mass index (BMI), and physical activity in participants’ communities. Methods: The study was a secondary data analysis of interview and BMI data for youths with visual impairments (i.e., those who are blind or have low vision) who attended a sports education camp in one of 12 states in the years 1989, 1996, and 2000–2010. Results: The short-term intervention model of a sports education camp had a positive effect on participants’ perceptions of themselves. This result was more pronounced for boys and for youths with some usable vision. Involvement in a sports education camp did not tend to translate to increased involvement in sports in a student’s community. The mean BMI of first-time participants was consistent across gender, race or ethnicity, and vision category, and the BMI of first-time participants tended to be higher according to the age of the participant. Discussion: The findings revealed that the short-term intervention model of a sports education camp is highly effective in increasing self-perception for youngsters with vision impairments. Implications for practitioners: For youths with visual impairments who might be experiencing reduced social interaction, decreased self-perception or increased BMI involvement in a sports education camp is a short-term intervention that can positively impact these effects.

Reactivity to Accelerometer Measurement of Children With Visual Impairments and Their Family Members

2019 ◽  
Vol 36 (4) ◽  
pp. 492-500 ◽  
Author(s):  
Xihe Zhu ◽  
Justin A. Haegele
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Vigorous Physical Activity ◽  
Visual Impairments ◽  
Unique Contribution ◽  
Activity Time ◽  
Parents And Children ◽  
Demographic Survey ◽  
Children With Visual Impairments ◽  
Accelerometer Measurement

The purpose of this study was to examine reactivity to accelerometer measurement in children with visual impairments (VI), their sighted siblings, and their parents. A sample of 66 participants (including 22 children with VI, 22 siblings, and 22 parents) completed a demographic survey and wore triaxial accelerometers for at least 4 consecutive days for 8 hr. An analysis of covariances with repeated measures was conducted, controlling for participant gender. Children with VI had 8.1% less moderate to vigorous physical activity time on Day 1 than Days 2–4 average. Their sighted siblings and parents had 7.8% and 7.1% more moderate to vigorous physical activity time on Day 1 than their Days 2–4 average, respectively. The reactivity percentage for parents and children without VI is consistent with existing literature. However, an inverse reactivity for children with VI was found, which is a unique contribution to the literature and will have implications for researchers using accelerometers for this population.

scholarly journals Motivation Predicts Change in Nurses’ Physical Activity Levels During a Web-Based Worksite Intervention: Results From a Randomized Trial

10.2196/11543 ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. e11543
Author(s):  
Jennifer Brunet ◽  
Heather E Tulloch ◽  
Emily Wolfe Phillips ◽  
Robert D Reid ◽  
Andrew L Pipe ◽  
...  
Keyword(s):  
Physical Activity ◽  
Randomized Trial ◽  
Repeated Measures ◽  
Activity Monitor ◽  
Rate Of Change ◽  
Integration Theory ◽  
Activity Levels ◽  
Web Based ◽  
Group Randomized Trial ◽  
Physical Activity Levels

Background Low physical activity levels can negatively affect the health of nurses. Given the low physical activity levels reported by nurses, there is a clear need for brief and economical interventions designed to increase physical activity levels in this population. We developed a web-based intervention that used motivational strategies to increase nurses’ physical activity levels. The intervention provided the nurses with feedback from an activity monitor coupled with a web-based individual, friend, or team physical activity challenge. Objective In this parallel-group randomized trial, we examine whether nurses’ motivation at baseline predicted changes in objectively measured physical activity levels during the 6-week intervention. Methods The participants were 76 nurses (n=74, 97% female; mean age 46, SD 11 years) randomly assigned to 1 of 3 physical activity challenge conditions: (1) individual, (2) friend, or (3) team. The nurses completed a web-based questionnaire designed to assess motivational regulations for physical activity levels before the intervention and wore a Tractivity activity monitor before and during the 6-week intervention. We analyzed data using multilevel modeling for repeated measures. Results The nurses’ physical activity levels increased (linear estimate=10.30, SE 3.15; P=.001), but the rate of change decreased over time (quadratic estimate=−2.06, SE 0.52; P<.001). External and identified regulations (ß=−2.08 to 11.55; P=.02 to .04), but not intrinsic and introjected regulations (ß=−.91 to 6.29; P=.06 to .36), predicted changes in the nurses’ physical activity levels. Conclusions Our findings provide evidence that an intervention that incorporates self-monitoring and physical activity challenges can be generally effective in increasing nurses’ physical activity levels in the short term. They also suggest that drawing solely on organismic integration theory to predict changes in physical activity levels among the nurses participating in web-based worksite interventions may have been insufficient. Future research should examine additional personal (eg, self-efficacy) and occupational factors (eg, shift length and shift type) that influence physical activity levels to identify potential targets for intervention among nurses. Trial Registration ClinicalTrials.gov NCT04524572; https://clinicaltrials.gov/ct2/show/NCT04524572

scholarly journals Evaluation of Walk Across Texas! – a web-based community physical activity program

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Mark D. Faries ◽  
Michael L. Lopez ◽  
Ethan Faries ◽  
Kristen Keenan ◽  
Stephen D. Green
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Leisure Time ◽  
Program Assessment ◽  
Future Research ◽  
Activity Levels ◽  
Web Based ◽  
Novel Approach ◽  
Community Based Programs ◽  
Clinically Significant

Abstract Background In response to the chronic disease burden, web- and community-based programs have the potential to address targeted behaviors, such as physical activity (PA), using a novel approach with large audiences. The purpose of this study was to preliminarily evaluate an established team centered, web-based community PA program in Texas. Methods Walk Across Texas! (WAT!) is an eight-week community program delivered through a web-based platform to help people of various ages and abilities establish the habit of regular PA. Teams are challenged to walk a minimum of 832 miles. Changes in self-reported PA (miles/week; days/week) and leisure-time sitting (hours/day) were examined from 11,116 adult participants who participated in the program in 2016. Further analysis determined changes in physical activity (miles/week) between groups of pre-program assessment self-reported physical activity levels (0, 1–2, 3–4, or 5–7 days/week). Statistical analysis included paired-sample t-tests, repeated measures ANOVA and participant descriptors for PA change. Results Overall, mean changes in PA in all variables were statistically significant (p < .001), with the largest, clinically significant changes in submitted miles/week (mean increase of 4.89 ± 20.92). Self-reported PA increased 0.63 ± 2.89 days/week, while leisure-time sitting decreased less than 1 h per day (0.87 ± 1.86 h/day). All sub-groups (inactive, low active, active, high active at pre-program assessment) increased in self-reported miles per week, on average. Both the inactive and low-active groups experienced a statistically significant increase in mileage from week 1 to week 8 (5.48 miles/week or 12,330 steps /week, and 3.91 miles/week or 8797 steps /week, respectively). Conclusions The results provide initial support for the effectiveness of WAT! to initially increase and maintain moderate levels of PA of participants over 8-weeks, even in inactive or low-active participants. Descriptor variables were unable to differentiate between those who increased PA and those who did not. However; the results provide a canvas for future research questions regarding PA enhancement within a team-centered, web-based approach.

The validity and reliability of ultra-short-term heart rate variability parameters and the influence of physiological covariates

2021 ◽  
Author(s):  
Joel S. Burma ◽  
Sarah Graver ◽  
Lauren N. Miutz ◽  
Alannah Macaulay ◽  
Paige V. Copeland ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Frequency Domain ◽  
Repeated Measures ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Validity And Reliability ◽  
Short Term ◽  
Physiological Variables ◽  
Orthostatic Position

Background: Ultra-short-term (UST) heart rate variability (HRV) metrics have increasingly been proposed as surrogates for short-term HRV metrics. However, the concurrent validity, within-day reliability, and between-day reliability of UST HRV have yet to be comprehensively documented. Methods: Thirty-six adults (18 males, age: 26 ± 5 years, BMI: 24 ± 3 kg/m2) were recruited. Measures of HRV were quantified in a quiet-stance upright orthostatic position via three-lead electrocardiogram (ADInstruments, FE232 BioAmp). All short-term data recordings were 300-seconds in length and five UST time points (i.e., 30-seconds, 60-seconds, 120-seconds, 180-seconds, and 240-seconds) were extracted from the original 300-second recording. Bland-Altman plots with 95% limits of agreement, repeated measures ANOVA, and two-tailed paired t-tests demarcated differences between UST and short-term recordings. Linear regressions, coefficient of variation, intraclass correlation coefficients, and other tests examined the validity and reliability in both time- and frequency-domains. Results: No group differences were noted between all short-term and UST measures, for either time- (all p>0.202) or frequency-domain metrics (all p>0.086). A longer recording duration was associated with augmented validity and reliability, that was less impacted by confounding influences from physiological variables (e.g., respiration rate, carbon dioxide end-tidals, and blood pressure). Conclusively, heart rate, time-domain, and relative frequency-domain HRV metrics were acceptable with recordings greater or equal to 60s, 240s, and 300s, respectively. Conclusions: Future studies employing UST HRV metrics, should thoroughly understand the methodological requirements to obtain accurate results. Moreover, a conservative approach should be utilized regarding the minimum acceptable recording duration, which ensures valid/reliable HRV estimates are obtained.

Validation and Reliability of the New Lifestyles NL-1000 Accelerometer in New Zealand Preschoolers

2012 ◽  
Vol 9 (2) ◽  
pp. 295-299 ◽  
Author(s):  
Leanne Liggett ◽  
Andrew Gray ◽  
Winsome Parnell ◽  
Rob McGee ◽  
Yvette McKenzie
Keyword(s):  
Physical Activity ◽  
Rating Scale ◽  
Vigorous Physical Activity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Activity Level ◽  
Activity Levels ◽  
Validity And Reliability ◽  
Video Footage ◽  
Activity Rating

Background:Objective measures, such as accelerometers, are increasingly being used to measure physical activity (PA) levels in children, and the use of validated and reliable instruments is desirable when measuring the effectiveness of programs. The purpose of this study was to determine the validity and reliability of the New Lifestyles NL-1000 accelerometer among preschoolers using a modified version of the Children’s Activity Rating Scale (CARS).Methods:Fourteen preschoolers wore the NL-1000 at their waist while the device measured activity levels [in seconds of moderate-to-vigorous physical activity (MVPA)]. They were also videoed for approximately 12 minutes while participating in normal activities at an early childhood center. At approximately 2-minute intervals, activity level readings derived from the NL-1000 were recorded. The video footage was analyzed using a modified CARS technique and the CARS scores compared with data obtained from the accelerometer.Results:Within subject reliability was measured using intraclass correlation coefficients (0.58 for CARS and 0.59 for NL-1000). Furthermore, 95% of the variation in CARS could be explained by variation in the accelerometer counts, with 2.4% of the variation being participant-specific.Conclusion:The NL-1000 is a sufficiently reliable and valid tool for assessing MVPA in preschoolers.

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