scholarly journals Reliability and validity of the physical activity monitor for assessing energy expenditures in sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9717
Author(s):  
Chun-Hao Chang ◽  
Yi-Ju Hsu ◽  
Fang Li ◽  
Yu-Tsai Tu ◽  
Wei-Lun Jhang ◽  
...  
Keyword(s):  
Heart Rate ◽  
Correlation Coefficient ◽  
Endurance Athlete ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Predictive Equation ◽  
Heart Rate Monitor ◽  
Predictive Equations ◽  
Energy Expenditures

Background Inertial sensors, such as accelerometers, serve as convenient devices to predict the energy expenditures (EEs) during physical activities by a predictive equation. Although the accuracy of estimate EEs especially matter to athletes receive physical training, most EE predictive equations adopted in accelerometers are based on the general population, not athletes. This study included the heart rate reserve (HRR) as a compensatory parameter for physical intensity and derived new equations customized for sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults. Methods With indirect calorimetry as the criterion measure (CM), the EEs of participants on a treadmill were measured, and vector magnitudes (VM), as well as HRR, were simultaneously recorded by a waist-worn accelerometer with a heart rate monitor. Participants comprised a sedentary group (SG), an exercise-habit group (EHG), a non-endurance group (NEG), and an endurance group (EG), with 30 adults in each group. Results EE predictive equations were revised using linear regression with cross-validation on VM, HRR, and body mass (BM). The modified model demonstrates valid and reliable predictions across four populations (Pearson correlation coefficient, r: 0.922 to 0.932; intraclass correlation coefficient, ICC: 0.919 to 0.930). Conclusion Using accelerometers with a heart rate monitorcan accurately predict EEs of athletes and non-athletes with an optimized predictive equation integrating the VM, HRR, and BM parameters.

scholarly journals Comparación de dos métodos de detección para el registro de la frecuencia cardíaca: banda torácica vs camiseta técnica (Comparison of two methods for recording heart rate telemetry: chest band vs technical shirt)

Retos ◽  
2019 ◽  
pp. 469-473 ◽  
Author(s):  
Jose Pino Ortega ◽  
Alejandro Bastida Castillo ◽  
Jose Maria Oliva Lozano ◽  
Daniel Rojas Valverde ◽  
Pedro Reche Soto ◽  
...  
Keyword(s):  
Heart Rate ◽  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
National Level ◽  
Test Results ◽  
Internal Load ◽  
Heart Rate Monitors ◽  
Technological Advances ◽  
Measure Heart Rate

 Justificación. Los avances tecnológicos han contribuido al desarrollo de nuevo instrumental para la detección de variables de carga interna y externa durante los entrenamientos y la competición en el deporte. La frecuencia cardíaca (FC) es uno de los indicadores más estudiados y utilizados para el control de la carga interna. Actualmente para una mayor comodidad del atleta, los monitores cardiacos se han integrado en la indumentaria deportiva. Por tanto, es importante conocer la validez y precisión de dichas herramientas y mediciones ya que se utilizan comúnmente en situaciones reales del juego. Objetivo. Comparar dos métodos de detección para la medición de la FC a través del monitor cardíaco integrado en una camiseta técnica (Kalenji®, Kiprum Cardio) en relación a una herramienta previamente validada (GARMIN®- WIMU PROTM). Método. 16 futbolistas sub-19 (edad: 17.2±0.87 años; altura: 1.77 ± 0.05 cm; peso: 73.96±4.2 kg; IMC: 21.5±1.1 kg/m2) de nivel nacional español participaron voluntariamente. Se realizó una simulación de juego real mediante un espacio reducido 8vs8 (67.5 x 38.2 metros, 184.18 m2 por jugador excluyendo porteros). El análisis estadístico se compuso de las pruebas estadísticas coeficiente de correlación de Pearson, coeficiente de correlación intraclase (ICC) y test de Bland-Altman. Resultados. Existe una correlación casi perfecta (ICC=1.00; r=0.99) entre ambos métodos de monitorización de la frecuencia cardiaca. Existen diferencias bajas entre las mediciones de ambos dispositivos (Bias=0.01 ± 1.09; CV=1.59%) independientemente de la intensidad de la actividad. Conclusiones. Los electrodos integrados en la camiseta técnica es un método válido para la monitorización de la frecuencia cardiaca en fútbol a diferentes intensidades.Abstract. Purpose. Technological advances have contributed to the development of new devices measuring external and internal load during training and competition in sports. Heart rate (HR) is one of the most studied and utilized variables for internal load control. Currently, heart rate monitors have been integrated onto sport clothes in order to increase athletes’ comfortability. Therefore, it is important to know validity and accuracy of their measurements so that they can be used in real game situations. Objective. To compare two methods of detection of HR: through a technical shirt (Kalenji®, Kiprum Cardio), and with a previously validated method (GARMIN®- WIMU PROTM). Methods. A total of 16 Under-19 national-level footballers (age: 17.2±0.87 years old; height: 1.77 ± 0.05 m; weight: 73.96±4.2 kg; BMI: 21.5±1.1 kg/m2) participated voluntarily in this study. An 8vs8 game in a reduced area was performed (67.5 x 38.2 meters, 184.18 m2 per player, excluding goalkeepers). Statistical analysis was composed by Pearson correlation coefficient, intraclass correlation coefficient (ICC), and Bland-Altman test.  Results. A nearly perfect correlation was found between the HR telemetry methods (ICC=1.00; r=0.99). Very low differences were found between the two contact methods (Bias=0.01 ± 1.09; CV=1.59%), independently of activity intensities. Conclusions. The electrodes incorporated on the technical shirts represent a valid method to measure heart rate telemetry at different intensities in soccer.

scholarly journals Reliability and Validity of Three Instruments for Measuring Implant Stability Quotient

2020 ◽  
Author(s):  
Monica Blazquez-Hinarejos ◽  
Constanza Saka-Herrán ◽  
Victor Diez-Alonso ◽  
Jose Lopez-Lopez ◽  
Raúl Ayuso‐Montero ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
The Other ◽  
Resonance Frequency Analysis ◽  
Implant Stability ◽  
Good Reliability ◽  
Rater Reliability ◽  
Implant Stability Quotient

Background: Actually, resonance frequency analysis (RFA) is the most extended method for measuring implant stability. The implant stability quotient (ISQ) is the measure obtained by the different RFA devices, however, inter- and intra- rater reliability and validity of some devices remains unknown. Methods: Thirty implants were placed in 3 different pig mandibles. ISQ was measured axial and parallel with Osstell® Beacon, Penguin® and MegaISQ® by 2 different operators and one operator performed a test-retest. Intraclass correlation coefficient was calculated to assess the intra- and inter-rater reliability. Pearson correlation coefficient was used to assess the validity. Results: The higher inter- and intra- rater reliability was obtained by Penguin® when measuring axial. The highest ISQ values were obtained using Penguin® in an axial measurement; the lowest, using the MegaISQ® in an axial measurement. The highest correlation values with the other devices were obtained by MegaISQ® measuring axially. Conclusion: Penguin® had a good reliability for measuring ISQ both inter- and intra- rater. Osstell® had good validity for measuring ISQ both axial and parallel and MegaISQ® had the best validity for measuring ISQ axial.

Relationship between Invasive and Non-Invasive Hemodynamic Measures in Experimental Pulmonary Hypertension

2020 ◽  
Vol 16 (1) ◽  
pp. 47-53
Author(s):  
Vicente Benavides-Córdoba ◽  
Mauricio Palacios Gómez
Keyword(s):  
Heart Rate ◽  
Pulmonary Hypertension ◽  
Ejection Fraction ◽  
Right Ventricle ◽  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Systolic Pressure ◽  
Control Group ◽  
Pearson Correlation Coefficient ◽  
Non Invasive

Introduction: Animal models have been used to understand the pathophysiology of pulmonary hypertension, to describe the mechanisms of action and to evaluate promising active ingredients. The monocrotaline-induced pulmonary hypertension model is the most used animal model. In this model, invasive and non-invasive hemodynamic variables that resemble human measurements have been used. Aim: To define if non-invasive variables can predict hemodynamic measures in the monocrotaline-induced pulmonary hypertension model. Materials and Methods: Twenty 6-week old male Wistar rats weighing between 250-300g from the bioterium of the Universidad del Valle (Cali - Colombia) were used in order to establish that the relationships between invasive and non-invasive variables are sustained in different conditions (healthy, hypertrophy and treated). The animals were organized into three groups, a control group who was given 0.9% saline solution subcutaneously (sc), a group with pulmonary hypertension induced with a single subcutaneous dose of Monocrotaline 30 mg/kg, and a group with pulmonary hypertension with 30 mg/kg of monocrotaline treated with Sildenafil. Right ventricle ejection fraction, heart rate, right ventricle systolic pressure and the extent of hypertrophy were measured. The functional relation between any two variables was evaluated by the Pearson correlation coefficient. Results: It was found that all correlations were statistically significant (p <0.01). The strongest correlation was the inverse one between the RVEF and the Fulton index (r = -0.82). The Fulton index also had a strong correlation with the RVSP (r = 0.79). The Pearson correlation coefficient between the RVEF and the RVSP was -0.81, meaning that the higher the systolic pressure in the right ventricle, the lower the ejection fraction value. Heart rate was significantly correlated to the other three variables studied, although with relatively low correlation. Conclusion: The correlations obtained in this study indicate that the parameters evaluated in the research related to experimental pulmonary hypertension correlate adequately and that the measurements that are currently made are adequate and consistent with each other, that is, they have good predictive capacity.

scholarly journals The Patient’s Denture Assessment (Thai version) is a valid and reliable tool for evaluating the outcome of treatment with complete denture

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sahaprom Namano ◽  
Orapin Komin
Keyword(s):  
Treatment Outcome ◽  
Pearson Correlation ◽  
Treatment Success ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Complete Denture ◽  
Care Clinic ◽  
Geriatric Dentistry ◽  
Significant Difference ◽  
Denture Treatment

Abstract Background Complete tooth losses are still being major problems which resulted in lesser quality of life especially for elderly patients. However, there are still lack of questionnaire to evaluate the treatment outcome from the patient’s aspect. The objective of this study is to evaluate the reliability and validity of the Patient’s Denture Assessment-Thai version (PDA-T), then use this questionnaire to assess patient satisfaction with complete denture treatment outcome also investigates the factors involving their satisfaction. Methods The subjects comprised 120 edentulous adult patients (49 men/71 women; average age 70 years-old) from the Prosthodontic and the Geriatric Dentistry and Special Patients Care Clinic at the Faculty of Dentistry, Chulalongkorn University during 2019 March‒2020 March. The patients were divided into two groups: the group experienced (Exper) (n = 54) with wearing complete dentures, and the non-experienced (NonExper) group (n = 66). The patients used the validated PDA-T to self-assess their treatment at different times. The Exper group completed the questionnaire at t0 (during treatment), t0.5 (2‒8-weeks after t0), and t1 (final follow-up). The NonExper group completed the questionnaire only at t1. Results In the Exper group, Cronbach’s α and average inter-item correlation was 0.95 (range 0.76‒0.95) and 0.47 (range 0.57‒0.83), respectively. The intraclass correlation coefficients (n = 18, 95% confidence interval) were 0.98 overall. The paired t-test (p < 0.05) between t0 and t1 indicated a significant difference between t0 and t1 in every PDA-T topic, and the effect size was 1.71. In the NonExper group, the Pearson correlation analysis indicated no significant correlation between the patients' demographics and masticatory function. Conclusion The reliability and validity of the PDA-T indicate it is a valuable tool for evaluating complete denture treatment. Treatment success affected the patients' satisfaction but was not associated with the type of doctors, genders, ages, or educational level.

scholarly journals Adaptation and validation of the Caregiver Burden Inventory for use with caregivers of elderly individuals

2015 ◽  
Vol 23 (1) ◽  
pp. 130-138 ◽  
Author(s):  
Daiany Borghetti Valer ◽  
Marinês Aires ◽  
Fernanda Lais Fengler ◽  
Lisiane Manganelli Girardi Paskulin
Keyword(s):  
Older Adults ◽  
Correlation Coefficient ◽  
Caregiver Burden ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Expert Committee ◽  
Five Dimensions ◽  
Social And Emotional ◽  
Back Translation ◽  
Student’S T

OBJECTIVE: to adapt and validate the Caregiver Burden Inventory for use with caregivers of older adults in Brazil.METHOD: methodological study involving initial translation, synthesis of translations, back translation, expert committee review, pre-testing, submission of the final version to the original authors, and assessment of the inventory's psychometric properties. The inventory assesses five dimensions of caregiver burden: time-dependence, developmental, physical, social and emotional dimensions.RESULTS: a total of 120 family caregivers took part in the study. All care-receivers were older adults dependent on assistance to perform activities of daily living, and lived in the central region of the city of Porto Alegre, RS, Brasil. Cronbach's alpha value for the inventory was 0.936, and the Pearson correlation coefficient for the relationship between the scores obtained on the Caregiver Burden Inventory and the Burden Interview was 0.814. The intraclass correlation coefficient was 0.941, and the value of Student's T-test comparing test and retest scores was 0.792.CONCLUSION: the instrument presented adequate reliability and the suitability of its items and factors was confirmed in this study.

Reliability and validity of short Beck Hopelessness Scale in psychological autopsy study among Chinese rural elderly

2019 ◽  
Vol 32 (4) ◽  
pp. 525-531
Author(s):  
Zhenyu Ma ◽  
Qiuping He ◽  
Guanghui Nie ◽  
Cunxian Jia ◽  
Liang Zhou
Keyword(s):  
Correlation Coefficient ◽  
High Reliability ◽  
Common Factor ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Rural Elderly ◽  
Cluster Sampling ◽  
Psychological Autopsy ◽  
Autopsy Study ◽  
Beck Hopelessness Scale

ABSTRACTBackground:Older adults represent the segment of population most exposed to the risk of suicide nearly everywhere in the world. Previous studies showed that hopelessness was an important risk factor for suicide.Aims:This study aimed to evaluate the reliability and validity of the four-item Beck Hopelessness Scale (BHS-4) in psychological autopsy study among Chinese rural elderly.Method:Two-stage stratified cluster sampling method was used to select research sites. Using case-control psychological autopsy study, face-to-face interviews were conducted to collected information.Results:A total of 242 elderly suicide deaths and 242 matched living comparisons were investigated, including 135 males and 107 females for each group. Intraclass Correlation Coefficients (ICC) of the controls were 0.682-0.713. The median score of BHS-4 among suicides was significantly higher than that among controls. The corrected correlation coefficient between items and total score were 0.184-0.723. Cronbach’s Alphas coefficient was 0.834. Only one common factor was precipitated by exploratory factor analysis and the cumulative variance contribution rates were 59.558% for suicides and 52.722% for living controls. The correlation coefficient between hopelessness and depression were 0.481 among suicide death and 0.617 among living controls.Conclusion:The information provided by the informants through psychological autopsy method had high reliability to reflect the actual situation of suicides and controls. BHS-4 has good reliability and validity among Chinese rural elderly suicides. It is suitable for psychological autopsy study among Chinese rural elderly.

scholarly journals A Quantitative Comparison of Multispectral Refraction Topography and Autorefractometer in Young Adults

2021 ◽  
Vol 8 ◽  
Author(s):  
Yunru Liao ◽  
Zhenlan Yang ◽  
Zijing Li ◽  
Rui Zeng ◽  
Jing Wang ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
High Agreement ◽  
Intraclass Correlation Coefficients ◽  
Repeatability And Reproducibility ◽  
The Mean

Purpose: Purpose of this study is to evaluate the measuring consistency of central refraction between multispectral refraction topography (MRT) and autorefractometry.Methods: This was a descriptive cross-sectional study including subjects in Sun Yat-sen Memorial Hospital from September 1, 2020, to December 31, 2020, ages 20 to 35 years with a best corrected visual acuity of 20/20 or better. All patients underwent cycloplegia, and the refractive status was estimated with autorefractometer, experienced optometrist and MRT. We analyzed the central refraction of the autorefractometer and MRT. The repeatability and reproducibility of values measured using both devices were evaluated using intraclass correlation coefficients (ICCs).Results: A total of 145 subjects ages 20 to 35 (290 eyes) were enrolled. The mean central refraction of the autorefractometer was −4.69 ± 2.64 diopters (D) (range −9.50 to +4.75 D), while the mean central refraction of MRT was −4.49 ± 2.61 diopters (D) (range −8.79 to +5.02 D). Pearson correlation analysis revealed a high correlation between the two devices. The intraclass correlation coefficient (ICC) also showed high agreement. The intrarater and interrater ICC values of central refraction were more than 0.90 in both devices and conditions. At the same time, the mean central refraction of experienced optometrist was −4.74 ± 2.66 diopters (D) (range −9.50 to +4.75D). The intra-class correlation coefficient of central refraction measured by MRT and subjective refraction was 0.939.Conclusions: Results revealed that autorefractometry, experienced optometrist and MRT show high agreement in measuring central refraction. MRT could provide a potential objective method to assess peripheral refraction.

scholarly journals Using Smart Bracelets to Assess Heart Rate Among Students During Physical Education Lessons: Feasibility, Reliability, and Validity Study (Preprint)

2020 ◽  
Author(s):  
Jiangang Sun ◽  
Yang Liu
Keyword(s):  
Heart Rate ◽  
Physical Education ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Left Wrist ◽  
Intraclass Correlation Coefficients ◽  
Estimate Reliability ◽  
Left And Right ◽  
The Right

BACKGROUND An increasing number of wrist-worn wearables are being examined in the context of health care. However, studies of their use during physical education (PE) lessons remain scarce. OBJECTIVE We aim to examine the reliability and validity of the Fizzo Smart Bracelet (Fizzo) in measuring heart rate (HR) in the laboratory and during PE lessons. METHODS In Study 1, 11 healthy subjects (median age 22.0 years, IQR 3.75 years) twice completed a test that involved running on a treadmill at 6 km/h for 12 minutes and 12 km/h for 5 minutes. During the test, participants wore two Fizzo devices, one each on their left and right wrists, to measure their HR. At the same time, the Polar Team2 Pro (Polar), which is worn on the chest, was used as the standard. In Study 2, we went to 10 schools and measured the HR of 24 students (median age 14.0 years, IQR 2.0 years) during PE lessons. During the PE lessons, each student wore a Polar device on their chest and a Fizzo on their right wrist to measure HR data. At the end of the PE lessons, the students and their teachers completed a questionnaire where they assessed the feasibility of Fizzo. The measurements taken by the left wrist Fizzo and the right wrist Fizzo were compared to estimate reliability, while the Fizzo measurements were compared to the Polar measurements to estimate validity. To measure reliability, intraclass correlation coefficients (ICC), mean difference (MD), standard error of measurement (SEM), and mean absolute percentage errors (MAPE) were used. To measure validity, ICC, limits of agreement (LOA), and MAPE were calculated and Bland-Altman plots were constructed. Percentage values were used to estimate the feasibility of Fizzo. RESULTS The Fizzo showed excellent reliability and validity in the laboratory and moderate validity in a PE lesson setting. In Study 1, reliability was excellent (ICC&gt;0.97; MD&lt;0.7; SEM&lt;0.56; MAPE&lt;1.45%). The validity as determined by comparing the left wrist Fizzo and right wrist Fizzo was excellent (ICC&gt;0.98; MAPE&lt;1.85%). Bland-Altman plots showed a strong correlation between left wrist Fizzo measurements (bias=0.48, LOA=–3.94 to 4.89 beats per minute) and right wrist Fizzo measurements (bias=0.56, LOA=–4.60 to 5.72 beats per minute). In Study 2, the validity of the Fizzo was lower compared to that found in Study 1 but still moderate (ICC&gt;0.70; MAPE&lt;9.0%). The Fizzo showed broader LOA in the Bland-Altman plots during the PE lessons (bias=–2.60, LOA=–38.89 to 33.69 beats per minute). Most participants considered the Fizzo very comfortable and easy to put on. All teachers thought the Fizzo was helpful. CONCLUSIONS When participants ran on a treadmill in the laboratory, both left and right wrist Fizzo measurements were accurate. The validity of the Fizzo was lower in PE lessons but still reached a moderate level. The Fizzo is feasible for use during PE lessons.

scholarly journals The QardioArm App in the Assessment of Blood Pressure and Heart Rate: Reliability and Validity Study (Preprint)

2017 ◽  
Author(s):  
Victoria Mazoteras Pardo ◽  
Marta E Losa Iglesias ◽  
José López Chicharro ◽  
Ricardo Becerro de Bengoa Vallejo
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
European Society ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Mobile App ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Mean Values

BACKGROUND Self-measurement of blood pressure is a priority strategy for managing blood pressure. OBJECTIVE The aim of this study was to evaluate the reliability and validity of blood pressure and heart rate following the European Society of Hypertension’s international validation protocol, as measured with the QardioArm, a fully automatic, noninvasive wireless blood pressure monitor and mobile app. METHODS A total of 100 healthy volunteers older than 25 years from the general population of Ciudad Real, Spain, participated in a test-retest validation study with two measurement sessions separated by 5 to 7 days. In each measurement session, seven systolic blood pressure, diastolic blood pressure, and heart rate assessments were taken, alternating between the two devices. The test device was the QardioArm and the previously validated criterion device was the Omron M3. Sessions took place at a single study site with an evaluation room that was maintained at an appropriate temperature and kept free from noises and distractions. RESULTS The QardioArm displayed very consistent readings both within and across sessions (intraclass correlation coefficients=0.80-0.95, standard errors of measurement=2.5-5.4). The QardioArm measurements corresponded closely to those from the criterion device (r>.96) and mean values for the two devices were nearly identical. The QardioArm easily passed all validation standards set by the European Society of Hypertension International Protocol. CONCLUSIONS The QardioArm mobile app has validity and it can be used free of major measurement error.

Reliability and Validity of the Thai Version of the Carolinas Comfort Scale

2021 ◽  
Vol 104 (11) ◽  
pp. 1784-1787
Keyword(s):  
Inguinal Hernia ◽  
Hernia Repair ◽  
Inguinal Hernia Repair ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Internal Consistency Reliability ◽  
Retest Reliability ◽  
Test Retest Reliability

Objective: To evaluate the reliability and validity of the Thai version of the Carolinas Comfort Scale (CCS) to measure health-related quality of life (HRQoL) in post-hernia repaired patients. Materials and Methods: Three hundred twenty-eight patients that underwent the inguinal hernia repair procedure in Vajira Hospital were recruited in the present study. The Thai version of CCS (TCCS) was performed entirely by the patient, and the test-retest reliability was conducted at a 2-week interval. Results: The TCCS’s internal consistency reliability was excellent (Cronbach’s alpha 0.89). The inter-rater reliability was found to agree with the intraclass correlation coefficient of 0.90. The test-retest reliability over two weeks was high, with an intraclass correlation coefficient of 0.92. Conclusion: The Thai version of CCS was found to have adequate reliability and validity and could be used to measure HRQoL in Thai patients that undergo inguinal hernia repair. Keywords: Reliability; Validity; Carolinas Comfort Scale; Thai version

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