Ashley Brooke Yamanaka

Dr. Ashley Brooke Yamanaka

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 June 2021 in Preventing Chronic Disease
Verified
Journal Article
Open access
AYAshley Brooke Yamanaka
Ashley Brooke Yamanaka
JDJames D. Davis
James D. Davis
LWLynne R. Wilkens
Lynne R. Wilkens
EHEric L. Hurwitz
Eric L. Hurwitz
MFMarie K. Fialkowski
Marie K. Fialkowski
RNRachel Novotny
Rachel Novotny
Preventing Chronic Disease (PCD) is a peer-reviewed electronic journal established by the National Center for Chronic Disease Prevention and Health Promotion. PCD provides an open exchange of information and knowledge among researchers, practitioners, policy makers, and others who strive to improve the health of the public through chronic disease prevention.

1 June 2024 in Journal of Physical Activity and Health
Verified
Journal Article
Closed access
PDF file
SRSarah T. Ryan
Sarah T. Ryan
Anthony (Tony) OkelyAnthony (Tony) Okely
Anthony (Tony) Okely
KCKar Hau Chong
Kar Hau Chong
RSRebecca M. Stanley
Rebecca M. Stanley
MRMelanie Randle
Melanie Randle
RNRachel Novotny
Rachel Novotny
Introduction: Limited data on 24-hour movement behaviors of children aged 5–8 years exist globally. We describe the prevalence and sociodemographic associations of meeting physical activity (PA), sedentary recreational screen time (ST), and sleep guidelines among children from 11 jurisdictions in the US-Affiliated Pacific region. Methods: Cross-sectional representative data from 1192 children aged 5–8 years living in the US-Affiliated Pacific region were drawn from the baseline 2012–2014 Children’s Healthy Living Program. Sleep and moderate- to vigorous-intensity PA were calculated from accelerometry. ST and sociodemographic data were collected from caregiver surveys. The percentage of children meeting the Asia-Pacific 24-hour movement guidelines for PA (≥60 min/d of moderate- to vigorous-intensity PA), sleep (≥9 and ≤ 11 h/d) and ST (≤2 h/d) were calculated. Generalized linear mixed models were used to examine associations with adiposity and sociodemographic variables. Results: Twenty-seven percent (95% confidence interval, 24.6–30.0) of children met integrated guidelines; 98% (96.2–98.0) met PA, 78% (75.4–80.0) met sleep, and 35% (32.6–38.0) met ST guidelines. Females (adjusted odds ratio = 1.40 [95% confidence interval, 1.03–1.91]) and those living in lower-middle-income jurisdictions (2.29 [1.49–3.54]) were more likely to meet ST guidelines. Overweight children (0.62 [0.40–0.96]), those aged 8 years (0.39 [0.22–0.69]), and children with caregivers of an education level of high school or beyond (0.44 [0.29–0.68]) were less likely to achieve ST guidelines. Children from midrange annual household incomes were less likely to meet combined guidelines (0.60 [0.39–0.92]). Conclusions: Three-quarters of children are not meeting integrated Asia-Pacific 24-hour movement guidelines. Future strategies for reducing ST and increasing integrated guidelines compliance are needed.

2 September 2016 in BMC Research Notes
Verified
Journal Article
Open access
PDF file
AYAshley Brooke Yamanaka
Ashley Brooke Yamanaka
MFMarie K Fialkowski
Marie K Fialkowski
LWLynne R. Wilkens
Lynne R. Wilkens
FLFenfang Li
Fenfang Li
REReynolette Ettienne
Reynolette Ettienne
RNRachel Novotny
Rachel Novotny
Quality assurance plays an important role in research by assuring data integrity, and thus, valid study results. We aim to describe and share the results of the quality assurance process used to guide the data collection process in a multi-site childhood obesity prevalence study and intervention trial across the US Affiliated Pacific Region. Quality assurance assessments following a standardized protocol were conducted by one assessor in every participating site. Results were summarized to examine and align the implementation of protocol procedures across diverse settings. Data collection protocols focused on food and physical activity were adhered to closely; however, protocols for handling completed forms and ensuring data security showed more variability. Quality assurance protocols are common in the clinical literature but are limited in multi-site community-based studies, especially in underserved populations. The reduction in the number of QA problems found in the second as compared to the first data collection periods for the intervention study attest to the value of this assessment. This paper can serve as a reference for similar studies wishing to implement quality assurance protocols of the data collection process to preserve data integrity and enhance the validity of study findings. Trial registration: NIH clinical trial #NCT01881373

1 July 2020 in Currents in Pharmacy Teaching and Learning
Verified
Journal Article
Closed access
CMCarolyn Ma
Carolyn Ma
LWLorrie Wong
Lorrie Wong
AWAida Wen
Aida Wen
RARobin Arndt
Robin Arndt
AKAlan R. Katz
Alan R. Katz
MKMasaki Kamal
Masaki Kamal

12 June 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
DTDouglas Taren
Douglas Taren
HAHalimatou Alaofe
Halimatou Alaofe
AYAshley Brooke Yamanaka
Ashley Brooke Yamanaka
PCPatricia Coleman
Patricia Coleman
TFTravis Fleming
Travis Fleming
RNRachel Novotny
Rachel Novotny
Background: The impact that dietary carbohydrates have on children developing type 2 diabetes remains controversial. Furthermore, there are limited pediatric longitudinal studies on changes in body mass index (BMI) and diet related to the development of acanthosis nigricans (AN), a risk factor associated with type 2 diabetes. Methods: Two 24 h dietary records were collected for 558 children, 2–8 years of age, at baseline and at a 2-year follow-up. Data on age, sex, BMI, and the presence of AN were also collected at each time point from the Children’s Healthy Living Program. Logistic regression was used to determine factors associated with the presence of AN at follow-up. Multinominal regression was used to determine factors associated with changes in AN status. Linear regression was used to measure the associations between changes in dietary intake and in the Burke Score for AN. Results: AN was present in 28 children at baseline and 34 children at follow-up. Adjusting for the presence of AN at baseline, age, sex, study group, baseline BMI, change in BMI z-score, time between assessments, and baseline intake, an increase from baseline for each teaspoon of sugar and serving of carbohydrate-rich food increased the risk for having AN at follow-up by 9% and 8%, respectively (p ≤ 0.05). An increased intake of added sugar (teaspoons) increased the risk of developing AN by 13% (p ≤ 0.01) and an increase in servings of foods rich in starch increased the risk of developing AN by 12% (p ≤ 0.01) compared to children who never had AN. Increasing the intake of fruit was also associated with decreased Burke Scores using multiple regression. However, the intake of energy and macronutrients were not associated with AN. Conclusions: Added sugar and foods rich in starch were independently associated with the occurrence of AN, suggesting the type of carbohydrates consumed is a factor in AN occurrence.