Abstract：
:Objective: This study aimed to investigate the repeated effect of social media on smartphones immediately before training sessions on inhibitory control (Stroop task), endurance (tethered swimming), countermovement jump (CMJ), and swimming performance (50, 100, and 400-m freestyle) in high-level female swimmers. Methods: It is a randomized and experimental investigation with parallel groups. Twenty-two participants underwent the eight weeks of the experiment. The swimmers (eight to twelve sessions per week with 15.9 ± 1.6 hours/week, and training experience of ~ 5.6 years) were randomized in two groups: control (CON, n = 11) and smartphone (SMA, n = 11). Immediately before each training session, the CON group watched videos about Olympic Games for 30-min. The SMA group used social network smartphone apps during 30-min. The inhibitory control, endurance, CMJ, and swimming performance were measured before and after the eight weeks of intervention. Results: No group x time interaction for 50-m freestyle (F(4, 18) = 1.04; p = .33; η2 = 0.09) and CMJ performance (F(4, 18) = 0.31; p = .58; η2 = 0.03) was found. Both experimental groups improved CMJ (F(2, 20) = 8.71; p = .01; η2 = 0.46). Only the CON group improved the 100-m (p = .02), 400-m freestyle (p = .01), and endurance performance (p = .01). The CON group improved the inhibitory control response (p = .01). Conclusion: It is concluded that the repeated effect of social media on smartphones immediately before swimming training sessions might reduce or nullify training gains on swimming and endurance performance.
journal_name
Res Q Exerc Sportjournal_title
Research quarterly for exercise and sportauthors
Fortes LS,Nakamura FY,Lima-Junior D,Ferreira MEC,Fonseca FSdoi
10.1080/02701367.2020.1810848subject
Has Abstractpub_date
2020-09-15 00:00:00pages
1-10eissn
0270-1367issn
2168-3824pub_type
杂志文章abstract：PURPOSE:Visual information is utilized in gymnastics vaulting. The question remains as to which informational sources are used to regulate handspring performance. The purpose of this study was to examine springboard and vaulting table position as informational sources in gymnastics vaulting. The hypothesis tested was t...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2013.762300
更新日期：2013-03-01 00:00:00
abstract：PURPOSE:The aim of this study was to identify the effects of a differential-learning program, embedded in small-sided games, on the creative and tactical behavior of youth soccer players. Forty players from under-13 (U13) and under-15 (U15) were allocated into control and experimental groups and were tested using a ran...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2017.1412063
更新日期：2018-03-01 00:00:00
abstract：:To evaluate the effect of concurrent augmented feedback on isometric force output during familiar and unfamiliar muscle movements, 18 men and 21 women, 18 to 23 years of age, completed two isometric exercises: flexion of the thumb (a familiar muscle movement) and abduction of the fifth digit (an unfamiliar movement). ...
journal_title：Research quarterly for exercise and sport
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/02701367.1990.10607480
更新日期：1990-03-01 00:00:00
abstract：PURPOSE:This study was designed to compare a low versus high theoretical fidelity pedometer intervention applying social-cognitive theory on step counts and self-efficacy. METHOD:Fifty-six public university employees participated in a 10-week randomized controlled trial with 2 conditions that varied in theoretical fid...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章,随机对照试验
doi：10.1080/02701367.2017.1368976
更新日期：2017-12-01 00:00:00
abstract：PURPOSE:The purpose was to develop a new method for assessing the potential bone-loading intensities of different locomotion activities by using accelerometers. METHOD:Thirty participants (women, N = 19; men, N = 11) with an average age of 40 years (SD = 18 years), performed 8 activities (3 self-selected speeds of wal...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2014.897680
更新日期：2014-06-01 00:00:00
abstract：:Purpose: The present study aimed to investigate associations between hormonal profile (cortisol and testosterone) and the psychobiological aspects of Paralympic athletes during a competitive season. Method: Male Brazilian Paralympic swimmers (n = 11) were evaluated in three Training Camps (TC) during the cycle of trai...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2019.1696929
更新日期：2020-12-01 00:00:00
abstract：:This study examined changes in antagonist timing and magnitude in response to ballistic elbow flexion practice. Seventeen men performed 400 ballistic elbow flexion trials to a target in the horizontal plane over 4 days of testing. A potentiometer and microswitch system at the elbow axis of rotation of a manipulandum r...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.1998.10607664
更新日期：1998-03-01 00:00:00
abstract：:The analysis of variability both within and between performers can reveal important information about how athletes satisfy situational constraints. Transitory changes in the basketball free-throw shot were examined across different stages in skill development. Six female basketball players were selected, representing ...
journal_title：Research quarterly for exercise and sport
pub_type： 临床试验,杂志文章
doi：10.1080/02701367.2003.10609090
更新日期：2003-09-01 00:00:00
abstract：:In this review, we propose a social ecological constraint model to study inclusion of overweight or obese students in physical education by integrating key concepts and assumptions from ecological constraint theory in motor development and social ecological models in health promotion and behavior. The social ecologica...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章,评审
doi：10.1080/02701367.2012.10599254
更新日期：2012-12-01 00:00:00
abstract：PURPOSE:At rest, the central nervous system combines and integrates multisensory cues to yield an optimal percept. When engaging in action, the relative weighing of sensory modalities has been shown to be altered. Because the timing of peak velocity is the critical moment in some goal-directed movements (e.g., overarm ...
journal_title：Research quarterly for exercise and sport
pub_type： 评论,杂志文章
doi：10.1080/02701367.2016.1196810
更新日期：2016-09-01 00:00:00
abstract：:This study examined age-related differences in the role of visual proprioception during a lower limb interceptive action and how this varies as a function of skill and practice. In Experiment 1, skilled and less-skilled 8-, 10-, and 12-year-old boys controlled a soccer ball using their preferred foot under full vision...
journal_title：Research quarterly for exercise and sport
pub_type： 临床试验,杂志文章
doi：10.1080/02701367.2002.10609038
更新日期：2002-12-01 00:00:00
abstract：:We examined the factorial validity and factorial invariance of the 3-day physical activity recall (3DPAR) using confirmatory factor analysis. Adolescent girls from two cohorts (N = 955, N = 1,797) completed the 3DPAR in the eighth grade; participants in Cohort 2 (N = 1,658) completed the 3DPAR again 1 year later in th...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2004.10609159
更新日期：2004-09-01 00:00:00
abstract：:Various models and methods have been proposed to address the worldwide decline in children's and youth's physical fitness, and the social-ecological model has shown some promise. Yet, the impact of the policy intervention, 1 component of that model, has not been evaluated carefully. Using limited data from policy docu...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2017.1270157
更新日期：2017-03-01 00:00:00
abstract：PURPOSE:Resistance training is often performed in a traditional training style using deliberate relatively longer repetition durations or in an explosive training style using maximal intended velocities and relatively shorter repetition durations. Both improve strength, "power" (impulsivity), and speed. This study comp...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章,随机对照试验
doi：10.1080/02701367.2018.1563276
更新日期：2019-03-01 00:00:00
abstract：:The purpose of the study was to examine how young children interact in the context of learning fundamental motor skills. Twenty-nine preschool children were observed during a period of six consecutive months while they were participating in their daily motor skills program. Fieldwork research methodology was used and ...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.1994.10607622
更新日期：1994-09-01 00:00:00
abstract：:Purpose: We investigated youth soccer players' perception of affordances for different types of kicks. Method: In the Power task, players judged the maximum distance they could kick the ball. In the Precision task, players judged how close to a designated target line they could kick the ball. Following judgments, play...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2020.1812494
更新日期：2020-09-14 00:00:00
abstract：:The Social Support Survey (SSS), validated by Richman, Rosenfeld, and Hardy (1993), is a multidimensional self-report measure of social support tested with student athletes. The SSS contains eight dimensions of support. For each dimension of support the same four questions are posed. The SSS could, therefore, be score...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2000.10608915
更新日期：2000-12-01 00:00:00
abstract：:The objective of the study was to analyze the effect of ball mass on dribble, pass, and pass reception in real game situations in 9-11-year-old boys' basketball. Participants were 54 boys identified from six federated teams. The independent variable was ball mass, and dependent variables were number of dribbles, passe...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2012.10599875
更新日期：2012-09-01 00:00:00
abstract：:Purpose: The purpose of this study was to compare the acute effects of general warm-up (GWU) and GWU plus dynamic stretching (GWU + DS) on endurance running performance in well-trained male runners. Method: The endurance running performances of eight well-trained long-distance male runners were assessed on a treadmill...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2019.1630700
更新日期：2019-12-01 00:00:00
abstract：:The sprint starts of 12 skilled collegiate sprinter/hurdlers were filmed for four different sprint start conditions. Ground reaction forces were collected for the first step out of the blocks and velocities through a 2-m speed trap immediately following the first support phase were recorded. The subjects employed thei...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.1992.10607573
更新日期：1992-06-01 00:00:00
abstract：:This study examined the influence of the challenge level of to-be-learned stimulus on learning strategies in novice and advanced dancers. In Study 1, skill-level appropriate dance routines were developed for novice and advanced jazz dancers. In Study 2, 8 novice and 9 advanced female jazz dancers attempted to learn an...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2000.10608891
更新日期：2000-06-01 00:00:00
abstract：:Purpose: This study builds a stochastic model of a discrete-time Markov chain (DTMC) that fits well with a dataset of professional playing records. Methods: The point-by-point dataset of Men's single matches played in the Association of Tennis Professionals (ATP) tour from 2011 to 2015 is analyzed. A long-debated assu...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2019.1666203
更新日期：2020-09-01 00:00:00
abstract：:Using Pierre Bourdieu's theories of social class differentiation and class reproduction, this paper provides an analysis of class-based identity politics in contemporary suburban America. Through a critical ethnography of the emergent, American, upper-middle-class "soccer mom" phenomenon, this study contributes to a g...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2009.10599569
更新日期：2009-06-01 00:00:00
abstract：:The purpose of this study was threefold: to determine (a) the test-retest reliability of the 20-m shuttle test (20 MST) (number of laps), (b) the concurrent validity of the 20 MST (number of laps), and (c) the validity of the prediction equation for VO2max developed by Léger, Mercier, Gadoury, and Lambert (1988) on Ca...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章,评审
doi：10.1080/02701367.1992.10608757
更新日期：1992-12-01 00:00:00
abstract：:We examined the automatic activation of "sedentary" and "exerciser" stereotypes using a social prime Stroop task. Results showed significantly slower response times between the exercise words and the exercise control words and between the sedentary words and the exercise control words when preceded by an attractive ex...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2009.10599602
更新日期：2009-09-01 00:00:00
abstract：:Numerous methods are available to assess physical activity (PA) but systematic observation (SO) excels in being able to provide contextually rich data on the setting in which the activity occurs. As SO is particularly useful for determining how activity is influenced by the immediate physical and social environments, ...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2015.991264
更新日期：2015-03-01 00:00:00
abstract：:With the needs of experienced teachers potentially overshadowed by a focus on recruitment, the purpose of this study was to retrospectively explore the reasons why three experienced physical education teachers resigned. They were interviewed through Louis and Smith's (1990) quality of work life (QWL) model. Data sugge...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2007.10599448
更新日期：2007-12-01 00:00:00
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journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2018.1510172
更新日期：2018-12-01 00:00:00
abstract：PURPOSE:The purposes of this study were to examine age and gender differences in throwing performance across an underexplored portion of the lifespan: middle adolescents (14-17 years old), young adults (18-25 years old), and adults (35-55 years old). METHOD:Throwing performance was assessed using the body component le...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.2013.784841
更新日期：2013-06-01 00:00:00
abstract：:The purpose of this study was to determine whether the ALT-PE system (Version 2) is valid as a process approach to estimate student achievement. Students (N = 60) were randomly selected from a data base that includes pretest and posttest scores for two volleyball skills and seven sessions of videotaped instruction. Vi...
journal_title：Research quarterly for exercise and sport
pub_type： 杂志文章
doi：10.1080/02701367.1991.10608729
更新日期：1991-09-01 00:00:00
