Efficacy of massage on muscle soreness,perceived recovery,physiological restoration and physical performance in male bodybuilders     

Mehdi Kargarfard  Eddie T.C. Lam  Ardalan Shariat  Ina Shaw  Brandon S. Shaw  Shamsul B.M. Tamrin 《Journal of sports sciences》2016,34(10):959-965

It is believed that sport massage after intensive exercise might improve power and perceptual recovery in athletes. However, few studies have been done in this area. This study aimed to examine the effect of massage on the performance of bodybuilders. Thirty experienced male bodybuilders were randomly assigned to either a massage group (n = 15) or a control group (n = 15). Both groups performed five repetition sets at 75–77% of 1RM of knee extensor and flexor muscle groups. The massage group then received a 30-min massage after the exercise protocol while the control group maintained their normal passive recovery. Criteria under investigation included: plasma creatine kinase (CK) level, agility test, vertical jump test, isometric torque test, and perception of soreness. All variables were measured over 6 time periods: baseline, immediately after the DOMS inducing protocol, right after the massage, and 24, 48, and 72 h after the massage. Both groups showed significant (P < .001) decreases in jumping, agility performance, and isometric torque, but significant (P < .001) increases in CK and muscle soreness levels. The massage group in general demonstrated a better recovery rate. As such, a post-exercise massage session can improve the exercise performance and recovery rate in male bodybuilders after intensive exercise.  相似文献   

Reasons for Changing Answers: An Evaluation Using Personal Interviews   总被引：1，自引：0，他引：1  

Shirley P. Schwarz  Robert F. McMorris  Lawrence P. DeMers 《Journal of Educational Measurement》1991,28(2):163-171

Researchers investigating answer changing have consistently found the preponderance of changes on objective items to be from wrong to right, but little is understood about the mechanisms involved in this phenomenon. In this study, personal interviews were combined with instruction in answer-changing research to investigate further the processes involved in answer changing. Students changed answers and gained from changing, with those in the upper two thirds of the classes gaining the most. Each test-taking strategy produced a mean gain, but particular strategies were not significantly correlated with percentage of gain or percentage of change. Most students reported changing answers for thoughtful reasons such as rereading, rethinking, or remembering more information; very few changes were due to clerical errors. For each reason, most changes were wrong-to-right. We conclude that reconsideration of test items is probably underestimated in answer-changing studies. The role of memory should be considered in why people change and in how successful they judge their changing to have been.  相似文献   

How is the ethical dissonance index affected by technology,academic dishonesty type and individual differences?     

Yael Sidi  Ina Blau  Yoram Eshet-Alkalai 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(6):3300-3314

Academic dishonesty has been growing in both digital and analog settings. The present study aimed to generalize the ethical dissonance index (EDI), which was established in a sample of Israeli school students as the gap between the pervasiveness of academic dishonesty and its perceived legitimacy. Furthermore, the study examined how technology, dishonesty type and individual differences affect these factors. The study employed a scenario-based approach – an indirect strategy for deducing academic dishonest behaviors. Participants were 1055 school students from various grade levels, geographic locations and religious/ethnic sectors. Results regarding the role of technology revealed that, overall, digital academic dishonesty was less pervasive and deemed more legitimate compared to analog dishonesty. However, this relationship varied as a function of dishonesty type. Findings confirmed that students experienced some level of ethical dissonance, generalizing the EDI. Notably, individual differences did not affect the relationship between media, dishonesty type and the EDI.  相似文献   

PROSPECTIVE MEMORY TRAINING IN OLDER ADULTS     

Iris W. Schmidt  Ina J. Berg  Betto G. Deelman 《Educational gerontology》2013,39(6):455-478

This study evaluates the results of a training program for prospective remembering. The goal of the training was to improve prospective memory by associating cues from the retrieval situation with the to be remembered information. The training group consisted of 20 participants, aged between 45 and 81 years. The effects of strategy training were compared with those of an educational training group (N = 23 , age range 45-84) directed at reducing worries about forgetfulness, and a retest control group (N = 22 , age range 46-74). The educational training and retest control groups did not differ in demographic characteristics and test performance and were combined into one control group. Subjective evaluations revealed that subjects were very satisfied with the effects of training. This also was true for subjects in the educational training condition. The objective effects of training were evaluated with a telephone task which had to be performed in the daily life situation, and a prospective categorization task performed in the laboratory. Despite the low reliabilities of the prospective tasks, a significant but small effect of training compared to the combined control group was found on the sum score of prospective tests. The training effect was not related to age or pretraining performance level. At the three months follow-up, however, performance of the control group had increased to the level of the trained group. As expected, training effects did not generalize to other memory measures (assessed with tests for remembering names) or control measures (assessed with visuo-motor reaction time tests).  相似文献   

Using teacher narrative research in teacher development     

Gretchen Schwarz 《The Teacher Educator》2013,48(1):37-48

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Long-term adjustments in performing arts expenditures     

Samuel Schwarz 《Journal of Cultural Economics》1986,10(2):57-66

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Strategic implications of the segment of one TV: The evolution of the personalised television structure     

Bernd W. Wirtz  Joachim Schwarz 《媒体管理杂志》2013,15(1):15-25

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Mathe mit der Matte – Verkörperlichtes Training basisnumerischer Kompetenzen     

Tanja Link  Eva Johanna Schwarz  Stefan Huber  Dr. Ursula Fischer  Prof. Dr. Hans-Christoph Nuerk  Prof. Dr. Ulrike Cress  Prof. Dr. Korbinian Moeller 《Zeitschrift für Erziehungswissenschaft》2014,17(2):257-277

Basic numerical representations are seen as the building block for the successful development of more complex numerical and arithmetic competencies. Extending previous studies focusing on improving basic numerical representations by means of embodied training schemes, the current study focused on an embodied training of children’s place-value understanding. In this vein, 49 secondgraders were trained on solving a number line estimation task by stepping on different fields of a dance mat allowing for separate estimations of tens and units with more effort needed to step on the tens. In a partially randomized cross-over design, two control conditions were used to controll for training effects caused exclusively by the numerical content trained or the use of the dance mat. Interestingly, results revealed specific training effects after both the embodied and the control conditions. However, training effects were significantly more pronounced after the embodied training, thereby providing further evidence for the benefit of an embodied training of the place-value structure of the Arabic number system.  相似文献   

The effects of a familiar toy and mother's presence on exploratory and attachment behaviors in young children     

N J Gershaw  J C Schwarz 《Child development》1971,42(5):1662-1666

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Factors predictive of black students' communication with the administration and students at a predominantly white university     

Warren Watson  Ina Siler 《Int J Intercult Relat》1984,8(3):255-267

Black students' interaction with a predominantly white university's administration, faculty, and students appears to be a central issue in current study of black student success in college. This study examined personality and situational factors predictive of black students' communication with such a university's administration, faculty, and students. The development of an instrument describing environmental and social concerns of black students demonstrated reasonable predictive validity of communication with the administration and white students. Feelings about the social environment and tendencies of communication anxiety were among the strongest predictors of black students' communication.  相似文献