Leonardo Jose Mataruna-Dos-Santos

Prof. Dr. Leonardo Jose Mataruna-Dos-Santos

Canadian University Dubai
+2
orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

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

Representative Publications

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28 May 2020 in Nutrients
Verified
Journal Article
Open access
PDF file
Achraf AmmarAchraf Ammar
Achraf Ammar
MBMichael Brach
Michael Brach
Khaled TrabelsiKhaled Trabelsi
Khaled Trabelsi
HCHamdi Chtourou
Hamdi Chtourou
Omar BoukhrisOmar Boukhris
Omar Boukhris
OCOn Behalf of the ECLB-COVID19 Consortium
On Behalf of the ECLB-COVID19 Consortium
Background: Public health recommendations and governmental measures during the COVID-19 pandemic have resulted in numerous restrictions on daily living including social distancing, isolation and home confinement. While these measures are imperative to abate the spreading of COVID-19, the impact of these restrictions on health behaviours and lifestyles at home is undefined. Therefore, an international online survey was launched in April 2020, in seven languages, to elucidate the behavioural and lifestyle consequences of COVID-19 restrictions. This report presents the results from the first thousand responders on physical activity (PA) and nutrition behaviours. Methods: Following a structured review of the literature, the “Effects of home Confinement on multiple Lifestyle Behaviours during the COVID-19 outbreak (ECLB-COVID19)” Electronic survey was designed by a steering group of multidisciplinary scientists and academics. The survey was uploaded and shared on the Google online survey platform. Thirty-five research organisations from Europe, North-Africa, Western Asia and the Americas promoted the survey in English, German, French, Arabic, Spanish, Portuguese and Slovenian languages. Questions were presented in a differential format, with questions related to responses “before” and “during” confinement conditions. Results: 1047 replies (54% women) from Asia (36%), Africa (40%), Europe (21%) and other (3%) were included in the analysis. The COVID-19 home confinement had a negative effect on all PA intensity levels (vigorous, moderate, walking and overall). Additionally, daily sitting time increased from 5 to 8 h per day. Food consumption and meal patterns (the type of food, eating out of control, snacks between meals, number of main meals) were more unhealthy during confinement, with only alcohol binge drinking decreasing significantly. Conclusion: While isolation is a necessary measure to protect public health, results indicate that it alters physical activity and eating behaviours in a health compromising direction. A more detailed analysis of survey data will allow for a segregation of these responses in different age groups, countries and other subgroups, which will help develop interventions to mitigate the negative lifestyle behaviours that have manifested during the COVID-19 confinement.

Achraf AmmarAchraf Ammar
Achraf Ammar
HCHamdi Chtourou
Hamdi Chtourou
Omar BoukhrisOmar Boukhris
Omar Boukhris
Khaled TrabelsiKhaled Trabelsi
Khaled Trabelsi
LMLiwa Masmoudi
Liwa Masmoudi
Leonardo Jose Mataruna-Dos-SantosLeonardo Jose Mataruna-Dos-Santos
Leonardo Jose Mataruna-Dos-Santos
Public health recommendations and governmental measures during the new coronavirusdisease (COVID-19) pandemic have enforced numerous restrictions on daily living including socialdistancing, isolation, and home confinement. While these measures are imperative to mitigatespreading of COVID-19, the impact of these restrictions on psychosocial health is undefined. Therefore,an international online survey was launched in April 2020 to elucidate the behavioral and lifestyleconsequences of COVID-19 restrictions. This report presents the preliminary results from more thanone thousand responders on social participation and life satisfaction. Methods: Thirty-five researchorganizations from Europe, North-Africa, Western Asia, and the Americas promoted the surveythrough their networks to the general society, in 7 languages (English, German, French, Arabic,Spanish, Portuguese, and Slovenian). Questions were presented in a differential format with questionsrelated to responses “before” and “during” confinement conditions. Results: 1047 participations(54% women) from Asia (36%), Africa (40%), Europe (21%), and others (3%) were included in theanalysis. Findings revealed psychosocial strain during the enforced COVID-19 home confinement.Large decreases (p<0.001) in the amount of social activity through family (−58%), friends/neighbors(−44.9%), or entertainment (−46.7%) were triggered by the enforced confinement. These negativeeffects on social participation were also associated with lower life satisfaction (−30.5%) during theconfinement period. Conversely, the social contact score through digital technologies significantlyincreased (p<0.001) during the confinement period with more individuals (+24.8%) being sociallyconnected through digital technology. Conclusion: These preliminary findings elucidate the riskof psychosocial strain during the early COVID-19 home confinement period in 2020. Therefore,in order to mitigate the negative psychosocial effects of home confinement, implementation ofnational strategies focused on promoting social inclusion through a technology-based solution isstrongly suggested.

1 January 2021 in Biology of Sport
Verified
Journal Article
Open access
PDF file
Achraf AmmarAchraf Ammar
Achraf Ammar
Khaled TrabelsiKhaled Trabelsi
Khaled Trabelsi
MBMichael Brach
Michael Brach
HCHamdi Chtourou
Hamdi Chtourou
OBOmar Boukhris
Omar Boukhris
AHAnita Hoekelmann
Anita Hoekelmann
Although recognised as effective measures to curb the spread of the COVID-19 outbreak, social distancing and self-isolation have been suggested to generate a burden throughout the population. To provide scientific data to help identify risk factors for the psychosocial strain during the COVID-19...

5 November 2020 in PLOS ONE
Verified
Journal Article
Open access
PDF file
Achraf AmmarAchraf Ammar
Achraf Ammar
PMPatrick Mueller
Patrick Mueller
Khaled TrabelsiKhaled Trabelsi
Khaled Trabelsi
HCHamdi Chtourou
Hamdi Chtourou
OBOmar Boukhris
Omar Boukhris
AHAnita Hoekelmann
Anita Hoekelmann
Background: Public health recommendations and government measures during the COVID-19 pandemic have enforced restrictions on daily-living. While these measures are imperative to abate the spreading of COVID-19, the impact of these restrictions on mental health and emotional wellbeing is undefined. Therefore, an international online survey (ECLB-COVID19) was launched on April 6, 2020 in seven languages to elucidate the impact of COVID-19 restrictions on mental health and emotional wellbeing. Methods: The ECLB-COVID19 electronic survey was designed by a steering group of multidisciplinary scientists, following a structured review of the literature. The survey was uploaded and shared on the Google online-survey-platform and was promoted by thirty-five research organizations from Europe, North-Africa, Western-Asia and the Americas. All participants were asked for their mental wellbeing (SWEMWS) and depressive symptoms (SMFQ) with regard to “during” and “before” home confinement. Results: Analysis was conducted on the first 1047 replies (54% women) from Asia (36%), Africa (40%), Europe (21%) and other (3%). The COVID-19 home confinement had a negative effect on both mental-wellbeing and on mood and feelings. Specifically, a significant decrease (p < .001 and Δ% = 9.4%) in total score of the SWEMWS questionnaire was noted. More individuals (+12.89%) reported a low mental wellbeing “during” compared to “before” home confinement. Furthermore, results from the mood and feelings questionnaire showed a significant increase by 44.9% (p < .001) in SMFQ total score with more people (+10%) showing depressive symptoms “during” compared to “before” home confinement. Conclusion: The ECLB-COVID19 survey revealed an increased psychosocial strain triggered by the home confinement. To mitigate this high risk of mental disorders and to foster an Active and Healthy Confinement Lifestyle (AHCL), a crisis-oriented interdisciplinary intervention is urgently needed.

1 January 2021 in Biology of Sport
Verified
Journal Article
Open access
PDF file
Khaled TrabelsiKhaled Trabelsi
Khaled Trabelsi
Achraf AmmarAchraf Ammar
Achraf Ammar
LMLiwa Masmoudi
Liwa Masmoudi
OBOmar Boukhris
Omar Boukhris
HCHamdi Chtourou
Hamdi Chtourou
AHAnita Hoekelmann
Anita Hoekelmann
Symptoms of psychological distress and disorder have been widely reported in people under quarantine during the COVID-19 pandemic; in addition to severe disruption of peoples’ daily activity and sleep patterns. This study investigates the association between physical-activity levels and sleep...

23 October 2021 in Sports Medicine
Verified
Journal Article
Open access
PDF file
JWJad Adrian Washif
Jad Adrian Washif
AFAbdulaziz Farooq
Abdulaziz Farooq
Isabel KrugIsabel Krug
Isabel Krug
DPDavid Pyne
David Pyne
EVEvert Verhagen
Evert Verhagen
KCKarim Chamari
Karim Chamari
Objective: Our objective was to explore the training-related knowledge, beliefs, and practices of athletes and the influence of lockdowns in response to the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Methods: Athletes (n = 12,526, comprising 13% world class, 21% international, 36% national, 24% state, and 6% recreational) completed an online survey that was available from 17 May to 5 July 2020 and explored their training behaviors (training knowledge, beliefs/attitudes, and practices), including specific questions on their training intensity, frequency, and session duration before and during lockdown (March–June 2020). Results: Overall, 85% of athletes wanted to “maintain training,” and 79% disagreed with the statement that it is “okay to not train during lockdown,” with a greater prevalence for both in higher-level athletes. In total, 60% of athletes considered “coaching by correspondence (remote coaching)” to be sufficient (highest amongst world-class athletes). During lockdown, < 40% were able to maintain sport-specific training (e.g., long endurance [39%], interval training [35%], weightlifting [33%], plyometric exercise [30%]) at pre-lockdown levels (higher among world-class, international, and national athletes), with most (83%) training for “general fitness and health maintenance” during lockdown. Athletes trained alone (80%) and focused on bodyweight (65%) and cardiovascular (59%) exercise/training during lockdown. Compared with before lockdown, most athletes reported reduced training frequency (from between five and seven sessions per week to four or fewer), shorter training sessions (from ≥ 60 to < 60 min), and lower sport-specific intensity (~ 38% reduction), irrespective of athlete classification. Conclusions: COVID-19-related lockdowns saw marked reductions in athletic training specificity, intensity, frequency, and duration, with notable within-sample differences (by athlete classification). Higher classification athletes had the strongest desire to “maintain” training and the greatest opposition to “not training” during lockdowns. These higher classification athletes retained training specificity to a greater degree than others, probably because of preferential access to limited training resources. More higher classification athletes considered “coaching by correspondence” as sufficient than did lower classification athletes. These lockdown-mediated changes in training were not conducive to maintenance or progression of athletes’ physical capacities and were also likely detrimental to athletes’ mental health. These data can be used by policy makers, athletes, and their multidisciplinary teams to modulate their practice, with a degree of individualization, in the current and continued pandemic-related scenario. Furthermore, the data may drive training-related educational resources for athletes and their multidisciplinary teams. Such upskilling would provide athletes with evidence to inform their training modifications in response to germane situations (e.g., COVID related, injury, and illness).