{"id":13521,"date":"2003-12-01T14:42:10","date_gmt":"2003-12-01T13:42:10","guid":{"rendered":"https:\/\/www.medes.fr\/?post_type=project&p=13521"},"modified":"2023-06-07T14:32:49","modified_gmt":"2023-06-07T12:32:49","slug":"etude-de-confinement","status":"publish","type":"project","link":"https:\/\/www.medes.fr\/en\/project\/etude-de-confinement\/","title":{"rendered":"Confinement study"},"content":{"rendered":"

[et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” _builder_version=”4.18.0″ _module_preset=”default” background_enable_color=”off” background_image=”https:\/\/www.medes.fr\/wp-content\/uploads\/2022\/06\/AdobeStock_279577524-compressed-scaled.jpg” custom_padding=”40px||40px||true|false” custom_padding_tablet=”30px||30px||true|false” custom_padding_phone=”30px||30px||false|false” locked=”off” global_colors_info=”{}” custom_css_after_last_edited=”off|desktop”][et_pb_row _builder_version=”4.18.0″ _module_preset=”default” custom_margin=”|auto|40px|auto|false|false” custom_margin_tablet=”||30px||false|false” custom_margin_phone=”||30px||false|false” custom_margin_last_edited=”on|phone” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.17.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.18.0″ _dynamic_attributes=”content” _module_preset=”default” text_orientation=”center” custom_margin=”||14px||false|false” custom_padding=”||0px|||” header_text_align_tablet=”” header_text_align_phone=”left” header_text_align_last_edited=”on|phone” global_colors_info=”{}”]@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF90aXRsZSIsInNldHRpbmdzIjp7ImJlZm9yZSI6IjxoMT4iLCJhZnRlciI6IjwvaDE+In19@[\/et_pb_text][et_pb_divider color=”#ffae00″ divider_weight=”5px” _builder_version=”4.18.0″ _module_preset=”default” width=”300px” width_tablet=”250px” width_phone=”150px” width_last_edited=”on|phone” module_alignment=”center” custom_margin=”||0px||false|false” custom_padding=”||2px||false|false” module_alignment_tablet=”center” module_alignment_phone=”left” module_alignment_last_edited=”on|phone” locked=”off” global_colors_info=”{}”][\/et_pb_divider][et_pb_text module_class=”projectCategorie” _builder_version=”4.18.0″ _dynamic_attributes=”content” _module_preset=”default” text_font_size=”14px” link_text_color=”#444444″ text_orientation=”center” text_orientation_tablet=”center” text_orientation_phone=”left” text_orientation_last_edited=”on|phone” global_colors_info=”{}” link_text_color__hover_enabled=”on|hover” link_text_color__hover=”#115894″]@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9jYXRlZ29yaWVzIiwic2V0dGluZ3MiOnsiYmVmb3JlIjoiIiwiYWZ0ZXIiOiIiLCJsaW5rX3RvX3Rlcm1fcGFnZSI6Im9uIiwic2VwYXJhdG9yIjoiICIsImNhdGVnb3J5X3R5cGUiOiJwcm9qZWN0X2NhdGVnb3J5In19@[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row use_custom_gutter=”on” gutter_width=”1″ make_equal=”on” module_class=”rowDetails” _builder_version=”4.18.0″ _module_preset=”default” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.18.0″ _module_preset=”default” global_colors_info=”{}” custom_css_main_element_last_edited=”off|phone”][et_pb_blurb title=”Date : ” use_icon=”on” font_icon=”||fa||400″ icon_color=”#115894″ icon_placement=”left” image_icon_width=”30px” image_icon_width_tablet=”28px” image_icon_width_phone=”25px” image_icon_width_last_edited=”on|phone” _builder_version=”4.19.1″ _module_preset=”default” header_text_color=”#444444″ animation=”off” global_colors_info=”{}”]2003
\n[\/et_pb_blurb][et_pb_blurb title=”State of progress :” use_icon=”on” font_icon=”||fa||400″ icon_color=”#115894″ icon_placement=”left” image_icon_width=”30px” image_icon_width_tablet=”28px” image_icon_width_phone=”25px” image_icon_width_last_edited=”on|phone” _builder_version=”4.21.0″ _module_preset=”default” header_text_color=”#444444″ animation=”off” locked=”off” global_colors_info=”{}”]<\/p>\n

Ended<\/p>\n

[\/et_pb_blurb][et_pb_blurb title=”Objectives : ” use_icon=”on” font_icon=”||fa||900″ icon_color=”#115894″ icon_placement=”left” image_icon_width=”30px” image_icon_width_tablet=”28px” image_icon_width_phone=”25px” image_icon_width_last_edited=”on|phone” _builder_version=”4.21.0″ _module_preset=”default” header_text_color=”#444444″ animation=”off” locked=”off” global_colors_info=”{}”]<\/p>\n

Study of the effects of confinement on the human body
Assessment of risk-taking in degraded conditions<\/p>\n

[\/et_pb_blurb][et_pb_blurb title=”Partners :” use_icon=”on” font_icon=”||fa||400″ icon_color=”#115894″ icon_placement=”left” image_icon_width=”30px” image_icon_width_tablet=”28px” image_icon_width_phone=”25px” image_icon_width_last_edited=”on|phone” _builder_version=”4.21.0″ _module_preset=”default” header_text_color=”#444444″ animation=”off” locked=”off” global_colors_info=”{}”]<\/p>\n

ESA, CNES<\/p>\n

[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” module_id=”Exp\u00e9riencephysiologie” module_class=”section_offre_stage” _builder_version=”4.20.2″ _module_preset=”default” custom_padding=”70px||70px||true|false” custom_padding_tablet=”50px||50px||true|false” custom_padding_phone=”50px||50px||true|false” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ module_class=”col_margin_bottom overflowVisible flexTab” _builder_version=”4.20.2″ _module_preset=”default” min_height=”151.6px” custom_padding=”0px||0px||true|false” global_colors_info=”{}” custom_css_main_element_last_edited=”on|tablet” custom_css_main_element_tablet=”display: block !important;” custom_css_main_element_phone=”display: block !important;”][et_pb_column type=”1_2″ _builder_version=”4.20.2″ _module_preset=”default” custom_padding_tablet=”||25px||false|false” custom_padding_phone=”||25px||false|false” custom_padding_last_edited=”on|tablet” global_colors_info=”{}”][et_pb_text admin_label=”MEDES a men\u00e9 pour l’ESA” _builder_version=”4.20.4″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” locked=”off” global_colors_info=”{}”]<\/p>\n

This study was conducted by MEDES on behalf of ESA and CNES in 2003<\/strong>.<\/strong><\/p>\n

Its goal was to study and assess the influence of the composition of crews (in manned spaceflight) on risk perception and risk taking under conditions of hypnic and chronobiological stress<\/strong>.<\/strong><\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.18.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.medes.fr\/wp-content\/uploads\/2022\/12\/Mission-STS-111-C.-NASA-2002.jpg” title_text=”Equipage de la mission STS 111 a bord de la Station Spatiale Internationale” align_tablet=”center” align_phone=”center” align_last_edited=”on|tablet” _builder_version=”4.20.4″ _module_preset=”default” width_tablet=”65%” width_phone=”100%” width_last_edited=”on|phone” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” _builder_version=”4.20.4″ _module_preset=”default” custom_padding=”0px||60px||false|false” custom_padding_tablet=”40px||40px||true|false” custom_padding_phone=”30px||30px||true|false” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” make_equal=”on” _builder_version=”4.20.4″ _module_preset=”default” custom_margin=”||||false|false” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.20.4″ _module_preset=”default” global_colors_info=”{}” custom_css_main_element_last_edited=”on|tablet” custom_css_main_element_tablet=”margin-bottom: 30px !important” custom_css_main_element_phone=”margin-bottom: 30px !important”][et_pb_text admin_label=”Au dernier trimestre 2021″ _builder_version=”4.20.4″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” locked=”off” global_colors_info=”{}”]<\/p>\n

Study objectives<\/h2>\n

As part of the preparation for long duration missions and the prospect of interplanetary missions, the aim of this project was to estimate the vulnerability to risk taking of 12 healthy male volunteers compared with 12 healthy female volunteers under conditions of sleep deprivation and chronobiological stress<\/strong>.<\/strong><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” _builder_version=”4.19.5″ _module_preset=”default” background_color=”gcid-942266d1-29d0-40a6-9a6c-57957e6d0be3″ custom_padding=”60px||60px||true|false” custom_padding_tablet=”40px||40px||true|false” custom_padding_phone=”30px||30px||true|false” global_colors_info=”{%22gcid-942266d1-29d0-40a6-9a6c-57957e6d0be3%22:%91%22background_color%22%93}”][et_pb_row use_custom_gutter=”on” make_equal=”on” _builder_version=”4.19.1″ _module_preset=”default” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.19.1″ _module_preset=”default” background_enable_image=”off” global_colors_info=”{}” custom_css_main_element_last_edited=”on|phone” custom_css_main_element_phone=”margin-bottom: 30px !important”][et_pb_text admin_label=”Pourquoi une immersion s\u00e8che ?” _builder_version=”4.21.0″ header_2_text_align=”right” background_size=”initial” background_position=”top_left” background_repeat=”repeat” text_orientation=”right” header_2_text_align_tablet=”left” header_2_text_align_phone=”left” header_2_text_align_last_edited=”on|tablet” text_orientation_tablet=”left” text_orientation_phone=”left” text_orientation_last_edited=”on|tablet” locked=”off” global_colors_info=”{}”]<\/p>\n

Implementation of the study<\/h2>\n

\n

Chronobiological stress conditions were achieved through isolation and\u00a0<\/span>confinement<\/span>\u00a0<\/span>lasting eight days in the Space Clinic, combined with conditions of low-intensity artificial lighting such as that recommended for spacecraft by NASA.<\/p>\n

Acute sleep deprivation of 24 hours was induced at the end of this period of isolation and\u00a0<\/span>confinement<\/span>.<\/p>\n

The volunteers also underwent acute sleep deprivation without prior isolation and\u00a0<\/span>confinement<\/span>, in order to assess the effects of this deprivation alone.<\/p>\n

The 24 healthy volunteers were divided into four groups of six (three men and three women per group).<\/p>\n

A battery of tests to assess risk taking, level of alertness and performance was conducted during the eight days of isolation and\u00a0<\/span>confinement<\/span>, before and after the sleep deprivation, and after sleep deprivation not preceded by a period of\u00a0<\/span>confinement<\/span>\u00a0<\/span>(normal living conditions with controlled sleep-wake hours).<\/p>\n

The consequences of the stress conditions typified by the acute sleep deprivation and chronobiological stress were also evaluated on the endocrine and immune systems (cortisol and cytokines assayed in saliva) and on regulation of the cardiovascular system by the autonomic nervous system (heart rate variability).<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” _builder_version=”4.18.0″ _module_preset=”default” custom_padding=”60px||60px||true|false” custom_padding_tablet=”40px||40px||true|false” custom_padding_phone=”30px||30px||true|false” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”2_3,1_3″ use_custom_gutter=”on” make_equal=”on” custom_padding_last_edited=”off|tablet” _builder_version=”4.19.1″ _module_preset=”default” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”2_3″ _builder_version=”4.18.0″ _module_preset=”default” global_colors_info=”{}” custom_css_main_element_last_edited=”on|tablet” custom_css_main_element_tablet=”margin-bottom: 30px !important;” custom_css_main_element_phone=”margin-bottom: 30px !important;”][et_pb_text admin_label=”Pourquoi une immersion s\u00e8che ?” _builder_version=”4.21.0″ header_2_text_align=”right” background_size=”initial” background_position=”top_left” background_repeat=”repeat” text_orientation=”right” header_2_text_align_tablet=”left” header_2_text_align_phone=”left” header_2_text_align_last_edited=”on|tablet” text_orientation_tablet=”left” text_orientation_phone=”left” text_orientation_last_edited=”on|tablet” locked=”off” global_colors_info=”{}”]<\/p>\n

Conclusions<\/h2>\n

Les r\u00e9sultats de cette recherche sol ont eu pour but de permettre de pr\u00e9ciser les cons\u00e9quences de la privation de sommeil et du stress chronobiologique sur la prise de risque, les performances, et les param\u00e8tres physiologiques li\u00e9s au stress.<\/p>\n

A terme, les r\u00e9sultats ont pour objectif de permettre une meilleure organisation de la composition des \u00e9quipages des vols spatiaux et de l\u2019attribution de t\u00e2ches en fonction des risques encourus entre les hommes et les femmes.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.19.1″ _module_preset=”default” background_enable_image=”off” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.medes.fr\/wp-content\/uploads\/2022\/11\/P37436_HD-scaled.jpg” alt=”Dry Immersion – 21-09-2021″ title_text=”P37436_HD” force_fullwidth=”on” disabled_on=”off|off|off” _builder_version=”4.19.1″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ module_class=”sectionFixe” _builder_version=”4.18.0″ _module_preset=”default” background_color=”RGBA(255,255,255,0)” positioning=”none” position_origin_f=”center_right” horizontal_offset=”0px” custom_padding=”0px||0px||true|false” custom_css_main_element=”position: fixed !important;||right: 0 !important;||left: unset !important;||top: 57%!important;||transform: translateY(-50%);” locked=”off” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ make_equal=”on” _builder_version=”4.18.0″ _module_preset=”default” width=”100%” max_width=”100%” custom_padding=”0px||0px||true|false” custom_css_main_element=” overflow: visible !important;” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.18.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb image=”https:\/\/www.medes.fr\/wp-content\/uploads\/2023\/04\/Sans-titre-18.png” icon_placement=”left” image_icon_width=”50px” module_class=”boutonFixe” _builder_version=”4.20.2″ _module_preset=”default” background_color=”#ffae00″ image_icon_custom_margin=”||||false|false” image_icon_custom_padding=”|14px|||false|false” custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/ressources\/actualites\/” global_colors_info=”{}”]Nos actualit\u00e9s
\n[\/et_pb_blurb][et_pb_blurb use_icon=”on” font_icon=”||divi||400″ icon_color=”#FFFFFF” icon_placement=”left” image_icon_width=”30px” module_class=”boutonFixe” _builder_version=”4.20.2″ _module_preset=”default” background_color=”#D6D6D6″ custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/nos-projets\/” global_colors_info=”{}”]Nos projets
\n[\/et_pb_blurb][et_pb_blurb use_icon=”on” font_icon=”u||divi||400″ icon_color=”#FFFFFF” icon_placement=”left” image_icon_width=”30px” module_class=”boutonFixe” _builder_version=”4.20.2″ _module_preset=”default” background_color=”#5e5e5e” custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/contact\/” global_colors_info=”{}”]Une question ?
\n[\/et_pb_blurb][et_pb_blurb use_icon=”on” font_icon=”||fa||400″ icon_color=”#FFFFFF” icon_placement=”left” image_icon_width=”30px” module_class=”boutonFixe” _builder_version=”4.20.2″ _module_preset=”default” background_color=”gcid-54b54a1e-9ad0-4545-b0eb-2cf1c6cd3982″ custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/clinique-spatiale-medes\/devenir-volontaire\/” global_colors_info=”{%22gcid-54b54a1e-9ad0-4545-b0eb-2cf1c6cd3982%22:%91%22background_color%22%93}”]Devenir volontaire ?
\n[\/et_pb_blurb][et_pb_blurb use_icon=”on” font_icon=”||fa||400″ icon_color=”#FFFFFF” icon_placement=”left” image_icon_width=”30px” module_class=”boutonFixe” _builder_version=”4.19.5″ _module_preset=”default” background_color=”gcid-4eb119fd-82df-4fd0-ae59-ab7f1c508199″ custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/clinique-spatiale-medes\/les-etudes-cliniques\/” global_colors_info=”{%22gcid-4eb119fd-82df-4fd0-ae59-ab7f1c508199%22:%91%22background_color%22%93}”]Nos \u00e9tudes cliniques
\n[\/et_pb_blurb][et_pb_blurb use_icon=”on” font_icon=”s||divi||400″ icon_color=”#FFFFFF” icon_placement=”left” image_icon_width=”28px” module_class=”boutonFixe” _builder_version=”4.20.2″ _module_preset=”default” background_color=”#002130″ custom_padding=”10px|10px|10px|10px|true|true” animation=”off” link_option_url=”\/a-la-une\/recrutement\/” global_colors_info=”{}”]Urgent ! Recrutement volontaires
\n[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

This study was conducted by MEDES on behalf of ESA and CNES in 2003.<\/p>\n

Its goal was to study and assess the influence of the composition of crews (in manned spaceflight) on risk perception and risk taking under conditions of hypnic and chronobiological stress.<\/p>\n","protected":false},"author":1,"featured_media":12764,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"

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2003<\/p>

[\/et_pb_blurb][et_pb_blurb title=\"Etat d'avancement :\" use_icon=\"on\" font_icon=\"\uf14a||fa||400\" icon_color=\"#115894\" icon_placement=\"left\" image_icon_width=\"30px\" image_icon_width_tablet=\"28px\" image_icon_width_phone=\"25px\" image_icon_width_last_edited=\"on|phone\" _builder_version=\"4.18.0\" _module_preset=\"default\" header_text_color=\"#444444\" animation=\"off\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Termin\u00e9<\/p>

[\/et_pb_blurb][et_pb_blurb title=\"Objectifs : \" use_icon=\"on\" font_icon=\"\uf140||fa||900\" icon_color=\"#115894\" icon_placement=\"left\" image_icon_width=\"30px\" image_icon_width_tablet=\"28px\" image_icon_width_phone=\"25px\" image_icon_width_last_edited=\"on|phone\" _builder_version=\"4.19.1\" _module_preset=\"default\" header_text_color=\"#444444\" animation=\"off\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Etude des effets du confinement sur le corps humain
Evaluation de la prise de risque en condition d\u00e9grad\u00e9e<\/p>

[\/et_pb_blurb][et_pb_blurb title=\"Partenaires :\" use_icon=\"on\" font_icon=\"\uf2b5||fa||400\" icon_color=\"#115894\" icon_placement=\"left\" image_icon_width=\"30px\" image_icon_width_tablet=\"28px\" image_icon_width_phone=\"25px\" image_icon_width_last_edited=\"on|phone\" _builder_version=\"4.19.1\" _module_preset=\"default\" header_text_color=\"#444444\" animation=\"off\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

ESA, CNES<\/p>

[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\"1\" custom_padding_last_edited=\"on|tablet\" module_id=\"Exp\u00e9riencephysiologie\" module_class=\"section_offre_stage\" _builder_version=\"4.20.2\" _module_preset=\"default\" custom_padding=\"70px||70px||true|false\" custom_padding_tablet=\"50px||50px||true|false\" custom_padding_phone=\"50px||50px||true|false\" locked=\"off\" global_colors_info=\"{}\"][et_pb_row column_structure=\"1_2,1_2\" module_class=\"col_margin_bottom overflowVisible flexTab\" _builder_version=\"4.20.2\" _module_preset=\"default\" min_height=\"151.6px\" custom_padding=\"0px||0px||true|false\" global_colors_info=\"{}\" custom_css_main_element_last_edited=\"on|tablet\" custom_css_main_element_tablet=\"display: block !important;\" custom_css_main_element_phone=\"display: block !important;\"][et_pb_column type=\"1_2\" _builder_version=\"4.20.2\" _module_preset=\"default\" custom_padding_tablet=\"||25px||false|false\" custom_padding_phone=\"||25px||false|false\" custom_padding_last_edited=\"on|tablet\" global_colors_info=\"{}\"][et_pb_text admin_label=\"MEDES a men\u00e9 pour l'ESA\" _builder_version=\"4.20.4\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Cette \u00e9tude a \u00e9t\u00e9 r\u00e9alis\u00e9e en 2003 par MEDES pour l'Agence Spatiale Europ\u00e9enne et pour le Centre National d'Etudes Spatiales.<\/strong><\/p>

Elle a \u00e9t\u00e9 mise en place dans le but d'\u00e9tudier et \u00e9valuer l'influence de la composition des \u00e9quipages (de vols habit\u00e9s) sur la perception et la prise de risque dans des conditions de stress hypnique et chronobiologique.<\/strong><\/p>

[\/et_pb_text][et_pb_text admin_label=\"Exp\u00e9riences de physiologie en micropesanteur\" _builder_version=\"4.20.4\" _module_preset=\"default\" header_font=\"Oswald light||||||||\" custom_margin=\"||30px||false|false\" custom_margin_tablet=\"||25px||false|false\" custom_margin_phone=\"||25px||false|false\" custom_margin_last_edited=\"on|tablet\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Contexte de l'\u00e9tude<\/h2>

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La prise de risque est un probl\u00e8me cl\u00e9 en terme de s\u00e9curit\u00e9 pendant les vols spatiaux ; en particulier pour les missions de longue dur\u00e9e et\/ou interplan\u00e9taires. Ce secteur de recherche a aussi beaucoup d\u2019applications dans l\u2019am\u00e9lioration de la s\u00e9curit\u00e9 des syst\u00e8mes homme\/machine.<\/p>

On sait qu\u2019il existe des diff\u00e9rences importantes entre les hommes et les femmes dans la perception et la prise de risque. Par ailleurs, la prise de risque est influenc\u00e9e par les troubles du sommeil et les perturbations chronobiologiques qui sont des facteurs importants de l\u2019environnement spatial.<\/p>

Les astronautes ont tendance \u00e0 dormir moins et les modifications de l\u2019exposition lumineuse (\u00e9clairage faible des v\u00e9hicules spatiaux et changements de l\u2019alternance lumi\u00e8re-obscurit\u00e9 (rapide en orbite basse) peuvent affecter leurs rythmes circadiens. Des fluctuations de la vigilance peuvent conduire \u00e0 des changements au niveau de la perception et de la prise de risque.<\/p>

[\/et_pb_text][\/et_pb_column][et_pb_column type=\"1_2\" _builder_version=\"4.18.0\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_image src=\"https:\/\/www.medes.fr\/wp-content\/uploads\/2022\/12\/Mission-STS-111-C.-NASA-2002.jpg\" title_text=\"Equipage de la mission STS 111 a bord de la Station Spatiale Internationale\" align_tablet=\"center\" align_phone=\"center\" align_last_edited=\"on|tablet\" _builder_version=\"4.20.4\" _module_preset=\"default\" width_tablet=\"65%\" width_phone=\"100%\" width_last_edited=\"on|phone\" global_colors_info=\"{}\"][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\"1\" custom_padding_last_edited=\"on|phone\" _builder_version=\"4.20.4\" _module_preset=\"default\" custom_padding=\"0px||60px||false|false\" custom_padding_tablet=\"40px||40px||true|false\" custom_padding_phone=\"30px||30px||true|false\" global_colors_info=\"{}\"][et_pb_row use_custom_gutter=\"on\" make_equal=\"on\" _builder_version=\"4.20.4\" _module_preset=\"default\" custom_margin=\"||||false|false\" custom_padding=\"0px||0px||true|false\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.20.4\" _module_preset=\"default\" global_colors_info=\"{}\" custom_css_main_element_last_edited=\"on|tablet\" custom_css_main_element_tablet=\"margin-bottom: 30px !important\" custom_css_main_element_phone=\"margin-bottom: 30px !important\"][et_pb_text admin_label=\"Au dernier trimestre 2021\" _builder_version=\"4.20.4\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Objectifs de l'\u00e9tude<\/h2>

Dans le cadre de la pr\u00e9paration des missions de longues dur\u00e9es et de la perspective de missions interplan\u00e9taires, l\u2019objectif de ce projet est d\u2019estimer la vuln\u00e9rabilit\u00e9 \u00e0 la prise de risque de 12 volontaires sains de sexe masculin compar\u00e9e \u00e0 celle de 12 volontaires sains de sexe f\u00e9minin dans des conditions de privation de sommeil et de stress chronobiologique.<\/strong><\/p>

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\"1\" custom_padding_last_edited=\"on|phone\" _builder_version=\"4.19.5\" _module_preset=\"default\" background_color=\"gcid-942266d1-29d0-40a6-9a6c-57957e6d0be3\" custom_padding=\"60px||60px||true|false\" custom_padding_tablet=\"40px||40px||true|false\" custom_padding_phone=\"30px||30px||true|false\" global_colors_info=\"{%22gcid-942266d1-29d0-40a6-9a6c-57957e6d0be3%22:%91%22background_color%22%93}\"][et_pb_row use_custom_gutter=\"on\" make_equal=\"on\" _builder_version=\"4.19.1\" _module_preset=\"default\" custom_padding=\"0px||0px||true|false\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.19.1\" _module_preset=\"default\" background_enable_image=\"off\" global_colors_info=\"{}\" custom_css_main_element_last_edited=\"on|phone\" custom_css_main_element_phone=\"margin-bottom: 30px !important\"][et_pb_text admin_label=\"Pourquoi une immersion s\u00e8che ?\" _builder_version=\"4.19.5\" header_2_text_align=\"right\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" text_orientation=\"right\" header_2_text_align_tablet=\"left\" header_2_text_align_phone=\"left\" header_2_text_align_last_edited=\"on|tablet\" text_orientation_tablet=\"left\" text_orientation_phone=\"left\" text_orientation_last_edited=\"on|tablet\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Deroulement de l'\u00e9tude<\/h2>

Les conditions de stress chronobiologique ont \u00e9t\u00e9 r\u00e9alis\u00e9es par un isolement et un\u00a0confinement<\/span>\u00a0de 8 jours au sein de la Clinique Spatiale, associ\u00e9 \u00e0 des conditions d\u2019\u00e9clairage artificiel de faible intensit\u00e9 telle que celle recommand\u00e9e pour les v\u00e9hicules spatiaux (recommandations NASA pour les v\u00e9hicules spatiaux).<\/p>

Une privation aigu\u00eb de sommeil de 24 heures a \u00e9t\u00e9 r\u00e9alis\u00e9e \u00e0 la fin de cette p\u00e9riode d\u2019isolement et de\u00a0confinement<\/span>.<\/p>

Les volontaires ont subi \u00e9galement une privation aigu\u00eb de sommeil sans isolement et\u00a0confinement<\/span>\u00a0pr\u00e9alables afin d\u2019\u00e9valuer les seuls effets de cette privation.<\/p>

Les 24 volontaires sains ont \u00e9t\u00e9 r\u00e9partis en 4 groupes de 6 (3 hommes et 3 femmes par groupe).<\/p>

Une batterie de tests permettant d\u2019\u00e9valuer la prise de risque, le niveau de vigilance et de performance a \u00e9t\u00e9 r\u00e9alis\u00e9e pendant les 8 jours d\u2019isolement et\u00a0confinement<\/span>\u00a0avant et apr\u00e8s la privation de sommeil, et apr\u00e8s privation de sommeil non pr\u00e9c\u00e9d\u00e9e d\u2019une p\u00e9riode de\u00a0confinement<\/span>\u00a0(conditions de vie habituelles avec horaires veille-sommeil contr\u00f4l\u00e9s).<\/p>

Les cons\u00e9quences des conditions de stress que repr\u00e9sentent la privation aigu\u00eb de sommeil et le stress chronobiologique ont \u00e9t\u00e9 \u00e9valu\u00e9es \u00e9galement au niveau des syst\u00e8mes endocrinien et immunologique (cortisol et cytokines dos\u00e9s dans la salive), et de la r\u00e9gulation du syst\u00e8me cardiovasculaire par le syst\u00e8me nerveux autonome (variabilit\u00e9 de la fr\u00e9quence cardiaque)<\/p>

\u00a0<\/p>

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\"1\" custom_padding_last_edited=\"on|phone\" _builder_version=\"4.18.0\" _module_preset=\"default\" custom_padding=\"60px||60px||true|false\" custom_padding_tablet=\"40px||40px||true|false\" custom_padding_phone=\"30px||30px||true|false\" locked=\"off\" global_colors_info=\"{}\"][et_pb_row column_structure=\"2_3,1_3\" use_custom_gutter=\"on\" make_equal=\"on\" custom_padding_last_edited=\"off|tablet\" _builder_version=\"4.19.1\" _module_preset=\"default\" custom_padding=\"0px||0px||true|false\" global_colors_info=\"{}\"][et_pb_column type=\"2_3\" _builder_version=\"4.18.0\" _module_preset=\"default\" global_colors_info=\"{}\" custom_css_main_element_last_edited=\"on|tablet\" custom_css_main_element_tablet=\"margin-bottom: 30px !important;\" custom_css_main_element_phone=\"margin-bottom: 30px !important;\"][et_pb_text admin_label=\"Pourquoi une immersion s\u00e8che ?\" _builder_version=\"4.19.1\" header_2_text_align=\"right\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" text_orientation=\"right\" header_2_text_align_tablet=\"left\" header_2_text_align_phone=\"left\" header_2_text_align_last_edited=\"on|tablet\" text_orientation_tablet=\"left\" text_orientation_phone=\"left\" text_orientation_last_edited=\"on|tablet\" locked=\"off\" global_colors_info=\"{}\"]<\/p>

Conclusions<\/h2>

Les r\u00e9sultats de cette recherche sol ont eu pour but de permettre de pr\u00e9ciser les cons\u00e9quences de la privation de sommeil et du stress chronobiologique sur la prise de risque, les performances, et les param\u00e8tres physiologiques li\u00e9s au stress.<\/p>

A terme, les r\u00e9sultats ont pour objectif de permettre une meilleure organisation de la composition des \u00e9quipages des vols spatiaux et de l\u2019attribution de t\u00e2ches en fonction des risques encourus entre les hommes et les femmes.<\/p>

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Nos actualit\u00e9s<\/p>

[\/et_pb_blurb][et_pb_blurb use_icon=\"on\" font_icon=\"\ue101||divi||400\" icon_color=\"#FFFFFF\" icon_placement=\"left\" image_icon_width=\"30px\" module_class=\"boutonFixe\" _builder_version=\"4.20.2\" _module_preset=\"default\" background_color=\"#D6D6D6\" custom_padding=\"10px|10px|10px|10px|true|true\" animation=\"off\" link_option_url=\"\/nos-projets\/\" global_colors_info=\"{}\"]<\/p>

Nos projets<\/p>

[\/et_pb_blurb][et_pb_blurb use_icon=\"on\" font_icon=\"u||divi||400\" icon_color=\"#FFFFFF\" icon_placement=\"left\" image_icon_width=\"30px\" module_class=\"boutonFixe\" _builder_version=\"4.20.2\" _module_preset=\"default\" background_color=\"#5e5e5e\" custom_padding=\"10px|10px|10px|10px|true|true\" animation=\"off\" link_option_url=\"\/contact\/\" global_colors_info=\"{}\"]<\/p>

Une question ?<\/p>

[\/et_pb_blurb][et_pb_blurb use_icon=\"on\" font_icon=\"\uf007||fa||400\" icon_color=\"#FFFFFF\" icon_placement=\"left\" image_icon_width=\"30px\" module_class=\"boutonFixe\" _builder_version=\"4.20.2\" _module_preset=\"default\" background_color=\"gcid-54b54a1e-9ad0-4545-b0eb-2cf1c6cd3982\" custom_padding=\"10px|10px|10px|10px|true|true\" animation=\"off\" link_option_url=\"\/clinique-spatiale-medes\/devenir-volontaire\/\" global_colors_info=\"{%22gcid-54b54a1e-9ad0-4545-b0eb-2cf1c6cd3982%22:%91%22background_color%22%93}\"]<\/p>

Devenir volontaire ?<\/p>

[\/et_pb_blurb][et_pb_blurb use_icon=\"on\" font_icon=\"\uf15c||fa||400\" icon_color=\"#FFFFFF\" icon_placement=\"left\" image_icon_width=\"30px\" module_class=\"boutonFixe\" _builder_version=\"4.19.5\" _module_preset=\"default\" background_color=\"gcid-4eb119fd-82df-4fd0-ae59-ab7f1c508199\" custom_padding=\"10px|10px|10px|10px|true|true\" animation=\"off\" link_option_url=\"\/clinique-spatiale-medes\/les-etudes-cliniques\/\" global_colors_info=\"{%22gcid-4eb119fd-82df-4fd0-ae59-ab7f1c508199%22:%91%22background_color%22%93}\"]<\/p>

Nos \u00e9tudes cliniques<\/p>

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Urgent ! Recrutement volontaires<\/p>

[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","_et_gb_content_width":"","footnotes":""},"project_category":[79,75],"project_tag":[],"class_list":["post-13521","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-clinical-study","project_category-space-clinic"],"acf":[],"yoast_head":"\nConfinement study - Medes<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.medes.fr\/en\/project\/etude-de-confinement\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Confinement study - Medes\" \/>\n<meta property=\"og:description\" content=\"This study was conducted by MEDES on behalf of ESA and CNES in 2003. 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