Giyasettin Demirhan

Prof. Giyasettin Demirhan

Hacettepe University Faculty of Sport Sciences
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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KDKele Ding
Kele Ding
JYJingzhen Yang
Jingzhen Yang
MCMing Kai Chin
Ming Kai Chin
LSLindsay M Sullivan
Lindsay M Sullivan
Giyasettin DemirhanGiyasettin Demirhan
Giyasettin Demirhan
OTon behalf of Global Community Health–COVID-19 Collaborative Research Team
on behalf of Global Community Health–COVID-19 Collaborative Research Team
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). Mental health (anxiety, depression, resilient coping, hope) and other study data were collected between June–August 2020. Of the 13,263 participants, 62.8% were female and 51.7% were 18–34 years old. Participants living in Brazil had the highest anxiety and depression symptoms while participants living in Singapore had the lowest. Greater personal COVID-19 exposure was associated with increased anxiety and depression symptoms, but country-level COVID-19 factors were not. Higher levels of hope were associated with reduced anxiety and depression; higher levels of resilient coping were associated with reduced anxiety but not depression. Substantial variations exist in anxiety and depression symptoms across countries during the COVID-19 lockdown, with personal COVID-19 exposure being a significant risk factor. Strategies that mitigate COVID-19 exposure and enhance hope and resilience may reduce anxiety and depression during global emergencies.

1 June 2017 in Thinking Skills and Creativity
Verified
Journal Article
Closed access
FUFatma Saçli Uzunöz
Fatma Saçli Uzunöz
Giyasettin DemirhanGiyasettin Demirhan
Giyasettin Demirhan

Erica GobbiErica Gobbi
Erica Gobbi
SMSilvio Maltagliati
Silvio Maltagliati
PSPhilippe Sarrazin
Philippe Sarrazin
SFSelenia di Fronso
Selenia di Fronso
Alessandra ColangeloAlessandra Colangelo
Alessandra Colangelo
ACAttilio Carraro
Attilio Carraro
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. A sample of 1146 PE teachers (59.5% females) from France, Italy, and Turkey answered an online questionnaire about guiding students to engage in out-of-school PA, helping them to set PA goals, encouraging in self-monitoring PA, the pedagogical formats of these behaviors and feedback asked to students. RM-MANCOVAs were performed with a two-time (before and during the lockdown), three country (France, Italy, Turkey), two gender factorial design, using teaching years and perceived health as covariates. A significant multivariate main effect time × country × gender (p < 0.001) was reported for the behaviors promoting students’ PA, with French and Italian teachers increasing some behaviors, while Turkish teachers showing opposite trends. Significant multivariate main effects time × country were found for formats supporting the behaviors (p < 0.001) and for asked feedback formats (p < 0.001). The massive contextual change imposed by lockdown caused different reactions in teachers from the three countries. Findings are informative for PA promotion and PE teachers’ education.

KDKele Ding
Kele Ding
JYJingzhen Yang
Jingzhen Yang
MCMing Kai Chin
Ming Kai Chin
LSLindsay M Sullivan
Lindsay M Sullivan
JDJ. Larry Durstine
J. Larry Durstine
OTon behalf of Global Community Health-COVID-19 Collaborative Research Team
on behalf of Global Community Health-COVID-19 Collaborative Research Team
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). Of 11,775 participants, 63.7% were female and 52.8% were 18–34 years old. More than 40% of participants were insufficiently active (43.9%) and reported a decrease in their PA during lockdown (44.8%). Statistically significant differences were observed in (1) proportions of participants being insufficiently active, (2) level of PA, and (3) decrease in PA across the 11 countries. More stringent governmental policy responses were associated with greater likelihood of being insufficiently active during lockdown (adjusted odds ratio = 1.22, 95% confidence interval = 1.03, 1.45). Higher depression or anxiety scores were associated with greater likelihood of decreased level of PA during lockdown.We found substantial reductions in PA levels during COVID-19 lockdown across countries. Country-specific PA promotion interventions are needed during this and similar global emergencies.

1 June 2004 in Perceptual and Motor Skills
Verified
Journal Article
Closed access
CKCanan Koca
Canan Koca
Giyasettin DemirhanGiyasettin Demirhan
Giyasettin Demirhan
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. The Attitudes Toward Physical Education Scale was administered to assess participants' attitudes toward physical education. The results of 2 × 2 (Sex × Sports Participation) analysis of variance indicated a significant difference in attitudes toward physical education between sport participants and nonsport participants, with the former scoring higher, and a difference between boys and girls, with boys scoring higher. However, there was no significant interaction between sex and sports participation on attitudes toward physical education. In general, sport participants had more favorable Attitudes Toward Physical Education scores than nonsport participants, and high school boys scored significantly higher than girls. There was a significant difference in Attitudes Toward Physical Education scores between female and male high school students, with boys having more favorable attitude scores.

1 June 2005 in Perceptual and Motor Skills
Verified
Journal Article
Closed access
Giyasettin DemirhanGiyasettin Demirhan
Giyasettin Demirhan
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. Test-retest over 15 days ranged from .64–86. A two-way variance analysis of sex × group showed that men's mean risk perception was lower than that of women for orienteering, mountain biking, rowing, surfing, sailing, nordic skiing, tour skiing, snowboarding, parachuting, and cliff jumping. Also, experienced mountaineers' mean risk perception was lower than that of those less experienced.