Previous studies have shown that when performing a SLS, unstable athletes display relatively high knee valgus and external rotation, and increased hip abduction and internal rotation when compared with stable athletes. 11 Therefore, the purpose of this study was to assess how the kinematics of the pelvis
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The Role of Lumbopelvic-Hip Complex Stability in Softball Throwing Mechanics
Gabrielle G. Gilmer, Jessica K. Washington, Jeffrey R. Dugas, James R. Andrews, and Gretchen D. Oliver
Recent Secular Trends in Child and Adolescent Physical Activity and Sedentary Behavior Internationally: Analyses of Active Healthy Kids Global Alliance Global Matrices 1.0 to 4.0
John J. Reilly, Joel Barnes, Silvia Gonzalez, Wendy Y. Huang, Taru Manyanga, Chiaki Tanaka, and Mark S. Tremblay
countries, this methodology has been used to test for evidence of secular trends 17 – 22 : Behavioral grades have been stable or in slow decline in the past decade or so, while grades for influences on the behaviors have improved, but these secular trend analyses have been limited to a small number of
Short-Term Stability of Urine Electrolytes: Effect of Time and Storage Conditions
J.D. Adams, Miranda Badolato, Ethan Pierce, Abbie Cantrell, Zac Parker, and Donya Farzam
.) are being affected the most to cause a change in osmolality in such a short time. The report of specimen storage and stability written by the World Health Organization states urine Na + is stable for 1 year at −20 °C, 45 days at 4–8 °C, and 45 days at 20–25 °C. Similarly, urine K + is stable for 1
Commingling Effects of Anterior Load and Walking Surface on Dynamic Gait Stability in Young Adults
Caroline Simpkins, Jiyun Ahn, Rebekah Buehler, Rebecca Ban, Meredith Wells, and Feng Yang
lower stability in group 3 compared with group 1 at TD during treadmill walking ( P = .020), but no significant differences between groups 1 versus 2 ( P = .518) or groups 2 versus 3 ( P = .193; Table 3 ). Similarly, group 3 was less stable while walking on the treadmill than on the ground ( P
Can the Use of Unstable Surfaces and Instruction for Conscious Abdominal Contraction Increase the EMG Activity of the Periscapular Muscles During the Dynamic Push-Up?
Rodrigo Cappato de Araújo, Vinícius Yan Santos Nascimento, Rafaela Joyce Barbosa Torres, Francis Trombini-Souza, David Behm, and Ana Carolina Rodarti Pitangui
on different surfaces. Thus, the first objective of this study was to analyze the effect of CAC on the action of the periscapular muscles during the execution of the push-up plus exercise on stable and unstable surfaces. The second objective was to evaluate the correlation between the EMG activity of
Trends and Age-Related Changes of Physical Activity Among Portuguese Adolescent Girls From 2002–2014: Highlights From the Health Behavior in School-Aged Children Study
João Martins, Adilson Marques, Nuno Loureiro, Francisco Carreiro da Costa, José Diniz, and Margarida Gaspar de Matos
better understand the Portuguese girls’ situation and to target interventions in critical periods in life. 2 , 12 Previous studies on trends of PA among Portuguese adolescent girls are scarce and, in general, provide evidence of their PA levels remaining low and stable over the years, and that PA
Student Athletes’ Causal Attributions for Sport and School Achievement in Relation to Sport Dropout and Grade Point Average
Milla Saarinen, Raymond Bertram, Kaisa Aunola, Julia Pankkonen, and Tatiana V. Ryba
are typically considered adaptive and crucial for maintaining motivation in any field ( Weiner, 1985 , 2018 ) when successes are attributed to internal and stable factors (e.g., ability) and the causes of failures to unstable factors (e.g., luck). Yet, little is known about the attributional
Improvement of Balance Stability in Older Individuals by On-Water Training
Fabiana Rodrigues Osti, Caroline Ribeiro de Souza, and Luis Augusto Teixeira
unstable support surface ( Donath et al., 2016 ; Magon et al., 2016 ). However, results revealed task-specific gains only, with increased postural stability and resulting longer time of equilibrium in slackline standing but lack of transfer to quiet balance on a stable support surface. Then, this training
Actual and Perceived Motor Competence, Cardiorespiratory Fitness, Physical Activity, and Weight Status in Schoolchildren: Latent Profile and Transition Analyses
Iiris Kolunsarka, Arto Gråstén, Mikko Huhtiniemi, and Timo Jaakkola
) Can qualitatively distinct subgroups of children based on cardiorespiratory fitness, motor competence, perceived motor competence, physical activity, and weight status be identified? and (b) Do these profiles remain stable over time? Materials and Methods Participants and Procedure This 3-year follow-up study was
Tests to Measure Core Stability in Laboratory and Field Settings: Reliability and Correlation Analyses
Francisco J. Vera-Garcia, Diego López-Plaza, Casto Juan-Recio, and David Barbado
respond to quick and controlled external unidirectional perturbations 6 , 7 , 9 , 10 and (2) stable and unstable sitting tests, which quantify the trunk’s ability to keep a desired position or trajectory while coping with internal fluctuations. 9 – 12 , 18 Although both kinds of methodologies are based
