Validation of Moticon’s OpenGo sensor insoles during gait,jumps, balance and cross-country skiing specific imitation movements     

Thomas Stöggl  Alex Martiner 《Journal of sports sciences》2017,35(2):196-206

The purpose of this study was the experimental validation of the OpenGo sensor insole system compared to PedarX sensor insole and AMTI force-plate systems. Sixteen healthy participants performed trials in walking, running, jumping (drop and counter movement jumps), imitation drills and balance, with simultaneous measures of all three systems. Detected ground contact and flight times with OpenGo during walking, running and jumping were similar to those of AMTI. Force–time curves revealed comparable shapes between all three systems. Force impulses were 13–34% lower with OpenGo when compared to AMTI. Despite differences in mean values in some exercise modes, correlations towards AMTI were between r = 0.8 and r = 1.0 in most situations. During fast motions, with high force and impact, OpenGo provided lower force and latency in force kinetics. During balance tasks, discrepancy in the centre of pressure was found medio-lateral, while anterio–posterior direction was closer to AMTI. With awareness of these limitations, OpenGo can be applied in both clinical and research settings to evaluate temporal, force and balance parameters during different types of motion. The fully mobile OpenGo system allows for the easy and quick system application, analysis and feedback under complex field conditions, as well.  相似文献   

Resistance training prescription with different load-management methods improves phase angle in older women     

Alex S. Ribeiro  Brad J. Schoenfeld  Mariana F. Souza  Crisieli M. Tomeleri  Analiza M. Silva  Denílson C. Teixeira 《European Journal of Sport Science》2017,17(7):913-921

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Exercise does not increase salivary lymphocytes,monocytes, or granulocytes,but does increase salivary lysozyme     

Trevor Gillum  Matthew Kuennen  Zachary McKenna  Micaela Castillo  Alex Jordan-Patterson  Caitlin Bohnert 《Journal of sports sciences》2017,35(13):1294-1299

An increase in salivary leukocytes may contribute to the exercise-induced increase in salivary antimicrobial proteins (AMPs). However, exercise-induced changes in salivary leukocytes have not been studied. The purpose of the study was to describe salivary leukocyte changes with exercise. Participants (n = 11, 20.3 ± 0.8 years, 57.2 ± 7.6 ml kg^?1 min^?1 peak oxygen uptake ((VO) ?₂peak), 11.1 ± 3.9% body fat) ran for 45 min at 75% of VO_2peak. Stimulated saliva (12 mL) was collected pre- and immediately post exercise. Saliva was filtered through a 30 µm filter before analysis of leukocytes (CD45⁺), granulocytes (CD45⁺CD15⁺), monocytes (CD45⁺CD14⁺), T-cells (CD45⁺CD3⁺), and B-cells (CD45⁺CD20⁺) using flow cytometry. Saliva was analysed for Lysozyme (Lys) using ELISA. Exercise did not alter any leukocyte subset. The major constituent of leukocytes pre-exercise were granulocytes (57.9 ± 30.3% compared with monocytes: 5.1 ± 2.7%, T-cells: 17.1 ± 8.9%, B-cells: 12.1 ± 10.2%) (P < 0.05). In a subset of n = 6, Lys secretion rate increased after exercise (pre: 5,170 ± 5,215 ng/min; post: 7,639 ± 4,140 ng/min) (P < 0.05). Exercise does not result in increased granulocytes, but does increase Lys. Further, these data suggest that an increase in salivary leukocytes is not needed to increase Lys.  相似文献   

Guidelines from research: Will they be able to use what you train them to do?     

Richard E. Clark  Alex Voogel 《Performance Improvement》1986,25(9):26-27

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An exploratory study of instructors' perceptions on inclusion of culturally responsive pedagogy in online education     

Alex Kumi-Yeboah  Samuel Amponsah 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(4):878-897

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Association of Gestational Diabetes Mellitus and Perinatal Maternal Depression with Early Childhood Behavioral Problems: An Environmental Influences on Child Health Outcomes (ECHO) Study     

Lauren C. Shuffrey  Santiago Morales  Melanie H. Jacobson  Michelle Bosquet Enlow  Akhgar Ghassabian  Amy E. Margolis  Maristella Lucchini  Kecia N. Carroll  Rosa M. Crum  Dana Dabelea  Arielle Deutsch  William P. Fifer  Brandon Goldson  Christine W. Hockett  W. Alex Mason  Lisette T. Jacobson  Thomas G. O'Connor  Nicolò Pini  Yael Rayport  Ayesha Sania  Leonardo Trasande  Rosalind J. Wright  Seonjoo Lee  Catherine Monk  program collaborators for Environmental influences on Child Health Outcomes 《Child development》2023,94(6):1595-1609

This study examined the association of gestational diabetes mellitus (GDM), prenatal, and postnatal maternal depressive symptoms with externalizing, internalizing, and autism spectrum problems on the Preschool Child Behavior Checklist in 2379 children aged 4.12 ± 0.60 (48% female; 47% White, 32% Black, 15% Mixed Race, 4% Asian, <2% American Indian/Alaskan Native, <2% Native Hawaiian; 23% Hispanic). Data were collected from the NIH Environmental influences on Child Health Outcomes (ECHO) Program from 2009-2021. GDM, prenatal, and postnatal maternal depressive symptoms were each associated with increased child externalizing and internalizing problems. GDM was associated with increased autism behaviors only among children exposed to perinatal maternal depressive symptoms above the median level. Stratified analyses revealed a relation between GDM and child outcomes in males only.  相似文献   

Introduction     

Alex Romiszowski 《Performance Improvement Quarterly》1991,4(1):3-4

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