Publications by authors named "Gıyasettin Demirhan"

Article Synopsis
  • The study investigates the impact of physical activity (PA) on sedentary behavior and body measurements in children and adolescents, highlighting a trend where physical activity decreases and sedentary time increases with age.
  • In a sample of 759 participants aged 6-17, results revealed children are less sedentary and more active than adolescents, with significant differences in body composition measurements based on physical activity levels.
  • The findings suggest that physically active individuals, especially boys, had lower body fat percentages and slimmer skinfold measurements compared to inactive peers, indicating that engaging in recommended levels of PA may mitigate obesity risks.
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A need exists to better understand the relationships between COVID-19, coping behaviors, physical activity and stress, and COVID-19's impact on way of life. A cross-sectional study design was used to examine adult physical activity, hope, depression, anxiety, and coping status by gender during the COVID-19 pandemic, and to determine the impact of these variables on the coping process. The study also examined the effect of gender on the relation between physical activity and dependent variables.

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Previous studies showed numerous evidence for the interlimb asymmetries in motor performance during arm reaching movements. Furthermore, these interlimb asymmetries have been shown to associate with spatial patterns of hand selection behavior. Importantly, these interlimb asymmetries can be modified systematically by occlusion of visual feedback, or a long-term sports training.

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The Brain Break (BB) short video program is designed to improve physical activity (PA), motor skills, and fitness in children. In this study, we examined the effects of an 8-week short video-based Brain Break (HOPSports Company) PA program within physical education (PE) lessons on fitness and fitness knowledge among students. We studied 62 fifth-grade students (experimental group = 28; control group = 34) in the Ankara, Turkey school district.

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During the novel coronavirus (COVID-19) pandemic, physical activity (PA) behaviors were altered worldwide due to public health measures such as "lockdown." This study described PA among adults residing in 11 countries during COVID-19 lockdown and examined factors associated with PA engagement. We conducted a cross-sectional anonymous survey among adults (≥18 years old) in 11 countries (Brazil, Bulgaria, China, India, Ireland, Malaysia, North Macedonia, Singapore, Spain, Turkey, United States).

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Despite the global impact of COVID-19, studies comparing the effects of COVID-19 on population mental health across countries are sparse. This study aimed to compare anxiety and depression symptoms during the COVID-19 lockdown among adults from 11 countries and to examine their associations with country-level COVID-19 factors and personal COVID-19 exposure. A cross-sectional survey was conducted among adults (≥18 years) in 11 countries (Brazil, Bulgaria, China, India, Ireland, North Macedonia, Malaysia, Singapore, Spain, Turkey, United States).

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The COVID-19 pandemic has drastically reduced physical activity (PA) behaviors of many people. Physical education (PE) is considered one of the privileged instruments to promote youths' PA. We aimed to investigate the effects of lockdown on PE teachers' behaviors promoting their students' out-of-school PA and differences between three European countries.

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Background: Physical activity participation (PAP) has been proven to improve health and promote optimal growth among adolescents. However, most adolescents do not meet the current physical activity (PA) recommendations in Turkey. The role of the social environment and social factors on PAP is being increasingly recognized.

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1,163 middle school students (586 girls, 577 boys; Grades 6-8) were selected through a stratified random sampling method to examine their attitudes toward physical education (PE) by grade, student's sex, sports participation characteristics, and teacher's sex. They were administered the Attitude Toward Physical Education Scale for Children. Factorial analysis of variance indicated that Grade 8 students' mean attitude scores were less positive than those of Grade 6 students, but the attitudes of boys and of sports participants were more positive than of girls and nonsports participants.

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The purpose of this study was to examine sensation seeking, physical self-perception, and intrinsic and extrinsic motives of rock climbers and to compare these psychological constructs with respect to their years of climbing experience and the difficulty of their climbing routes. 64 climbers (M age=29.1 yr.

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The purpose of this study was to measure the precompetitive anxiety and affective states of climbers, particularly with regard to sex and types of competition. 37 men (M=25.9, SD=3.

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The purpose of this study was to examine mountaineers' (expert, less-experienced, nonparticipant) risk perception in 19 outdoor-adventure sports related to their sex and sports experience. A total of 299 experienced mountaineers (90 women, 209 men), 321 less-experienced mountaineers (110 women, 211 men) and 193 volunteers nonparticipants in sport (95 women and 98 men) took part. Data were collected with items on a Likert-type 5-point scale.

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The purpose of this study was to examine attitudes toward physical education (PE and PE class preferences of high school Turkish students in terms of school gender composition; 213 girls and 249 boys from coeducational public schools, and 196 girls and 210 boys from single-sex vocational schools participated in the study. The Attitudes Toward Physical Education Scale was administered and the results of 2 x 2 (Gender x School Type) ANOVA indicated that students in coeducational schools in general, and boys had more favorable attitudes. Additionally, chi-square analysis demonstrated significant differences in PE class preferences between students from single-sex and coeducational schools and between girls and boys.

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This study assessed attitudes of high school students toward physical education with regard to sex and sport participation. A total of 440 sport participants (175 girls and 265 boys) and of 427 nonsport participants (227 girls and 200 boys), all of whom were 15 yr. old, voluntarily participated.

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