calculate the accuracy rate. In this study, the S2 form was used because it is recommended for use only with clients whose attentional performance is thought to be impaired ( Schuhfried, 2010 ). The time required for this form was about 20 min, including the instruction and practice phase. Determination
Search Results
Effects of Acute Aerobic Exercise on Executive Function in Children With and Without Learning Disability: A Randomized Controlled Trial
Chung-Ju Huang, Hsin-Yu Tu, Ming-Chun Hsueh, Yi-Hsiang Chiu, Mei-Yao Huang, and Chien-Chih Chou
The Determination of Finger-Flexor Critical Force in Rock Climbers
David Giles, Joel B. Chidley, Nicola Taylor, Ollie Torr, Josh Hadley, Tom Randall, and Simon Fryer
the determination of maximal finger flexor strength have been described in the literature, 5 as yet, there are no tests to determine functional aerobic metabolic capacity, delineating steady and nonsteady states in rock climbers. During high-intensity muscular exercise, the time for which exercise
The Role of Self-Determination in Changing Physical Activity Behavior in People Diagnosed With Bowel Polyps: A Pilot Randomized Controlled Trial
Liane S. Lewis, Barnabas Shaw, Srijit Banerjee, Pryscilla Dieguez, James Hernon, Nigel Belshaw, and John M. Saxton
context, we designed an intervention, underpinned by self-determination theory (SDT; Deci & Ryan, 1985 ), aimed at increasing PA behavior in people at elevated risk of CRC. Our main objective was to examine the effect of the intervention on PA behavior and the underlying motivation to change. It was
Understanding Physical Activity Motivation and Behavior Through Self-Determination and Servant Leadership Theories in a Feasibility Study
Samantha M. Gray, Joan Wharf Higgins, and Ryan E. Rhodes
, as it is often a necessary ingredient for behavior change ( Hagger & Chatzisarantis, 2008 ; Linke, Robinson, & Pekmezi, 2013 ). There is extensive literature on human motivation ( Ajzen, 1991 ; Clemow, 2008 ; Ryan & Deci, 2000 ) in which one prominent framework is self-determination theory (SDT
Predicting Accelerometer-Assessed Estimates of Adolescents’ Multidimensional Physical Activity: A Self-Determination Theory Approach
Lydia G. Emm-Collison, Martyn Standage, Fiona B. Gillison, and Thomas Curran
be a key determinant of sustained exercise engagement across numerous studies, providing insight into several individual-level factors that differentiate “why” people behave, engage, think, and experience exercise settings in differing ways (cf. Standage & Ryan, 2012 , 2020 ). Self-Determination
The Method but Not the Protocol Affects Lactate-Threshold Determination in Competitive Swimmers
Gavriil G. Arsoniadis, Ioannis S. Nikitakis, Michael Peyrebrune, Petros G. Botonis, and Argyris G. Toubekis
age-group swimmers. 6 Despite this, there is a paucity of information in the literature regarding the most valid method of estimation or the most appropriate protocol for the determination of sLT in senior competitive swimmers. Testing the most appropriate method to determine sLT, and corresponding
Children’s Motivation Profiles in Sports and Physical Activities: A Latent Profile Analysis and Self-Determination Theory Approach
Annette Lohbeck, Andreas Hohmann, Philipp von Keitz, and Monika Daseking
( Marker et al., 2018 ) and psychological well-being ( Rodriguez-Ayllon et al., 2019 ). Numerous studies have used self-determination theory (SDT; Deci & Ryan, 1985 ; Ryan & Deci, 2020 ) to explain the relations between motivation and physical achievement ( Ntoumanis et al., 2021 ; Vasconcellos et
Heart Rate Determination of Anaerobic Threshold in Children
Georgine Gaisl and Peter Hofmann
Ethical and logistical limitations preclude the routine determination of anaerobic threshold in children by invasive measurement of blood lactate concentrations or ventilatory parameters. A noninvasive field test developed by Conconi can be used to determine anaerobic threshold through analysis of the heart rate curve during increased exercise workloads. Although this test was initially evaluated in adult athletes, recent data indicate that the Conconi test is applicable to children in both laboratory and field settings. Close correlation with lactate-derived anaerobic threshold appears to be possible when utilizing standard testing protocols.
Self-Determination Moderates the Effects of Perceived Competence on Intrinsic Motivation in an Exercise Setting
David Markland
According to Deci and Ryan’s (1985) self-determination theory, perceptions of self-determination moderate the effects of perceived competence on intrinsic motivation, with perceived competence only positively influencing intrinsic motivation under conditions of some self-determination. Vallerand’s (1997) hierarchical model of intrinsic and extrinsic motivation suggests that self-determination and competence have only independent effects on intrinsic motivation. The aim of this study was to test these competing models. Women aerobics participants (n = 146) completed measures of self-determination, perceived competence, and intrinsic motivation for exercise. Moderated hierarchical regression revealed a significant interactive effect of self-determination and perceived competence. A plot of the regression of intrinsic motivation on perceived competence under conditions of high and low self-determination, however, showed that the interaction did not take the expected form. Variations in perceived competence positively influenced intrinsic motivation only under conditions of low self-determination. This suggests that it is particularly important to foster perceptions of competence among individuals low in self-determination.
Determination of Gait Events Using an Externally Mounted Shank Accelerometer
Jonathan Sinclair, Sarah J. Hobbs, Laurence Protheroe, Christopher J. Edmundson, and Andrew Greenhalgh
Biomechanical analysis requires the determination of specific foot contact events. This is typically achieved using force platform information; however, when force platforms are unavailable, alternative methods are necessary. A method was developed for the determination of gait events using an accelerometer mounted to the distal tibia, measuring axial accelerations. The aim of the investigation was to determine the efficacy of this method. Sixteen participants ran at 4.0 m/s ±5%. Synchronized tibial accelerations and vertical ground reaction forces were sampled at 1000 Hz as participants struck a force platform with their dominant foot. Events determined using the accelerometer, were compared with the corresponding events determined using the force platform. Mean errors of 1.68 and 5.46 ms for average and absolute errors were observed for heel strike and of –3.59 and 5.00 ms for toe-off. Mean and absolute errors of 5.18 and 11.47 ms were also found for the duration of the stance phase. Strong correlations (r = .96) were also observed between duration of stance obtained using the two different methods. The error values compare favorably to other alternative methods of predicting gait events. This suggests that shank-mounted accelerometers can be used to accurately and reliably detect gait events.
