[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100564819":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":10,"centralContacts":20,"locations":30,"responsibleParty":61,"collaborators":63,"id":73,"slug":74,"hasResults":75,"nctId":76,"briefTitle":77,"officialTitle":78,"acronym":10,"eligibilityCriteria":79,"healthyVolunteers":80,"sex":81,"minAge":82,"maxAge":83,"enrollmentInfo":84,"targetDuration":10,"studyType":87,"phases":10,"briefSummary":88,"conditions":89,"keywords":93,"overallStatus":57,"whyStopped":10,"lastUpdateSubmitDate":98,"lastUpdatePostDateStruct":99,"startDateStruct":102,"completionDateStruct":104,"leadSponsor":106,"locationsCount":107},{"fullName":5,"class":6},"Martini Hospital Groningen","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Female cyclist",null,"All female cyclist that consent using the data collected by JOIN cycling app and also give permission tracking thier menstrual cycle.\n\nNatrual menstrual cycle. Hormonal contraceptive use Intra-uterine device use (hormonal vs non-hormonal)",[13],"Behavioral: Adjusting training advice",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":10},"BEHAVIORAL","Adjusting training advice","Based on discomfort related to the menstrual cycle the female cyclist can choose to adjust the suggested training.",[9],[21,26],{"name":22,"role":23,"phone":24,"phoneExt":10,"email":25},"Anne Marijn van der Graaf, MD\u002FPhD","CONTACT","0031611474158","annemarijn.graaf@outlook.com",{"name":27,"role":23,"phone":28,"phoneExt":10,"email":29},"Margot Verleg","0031505246078","m.verleg@mzh.nl",[31,55],{"facility":32,"status":33,"city":34,"state":10,"zip":35,"country":36,"countryCode":37,"cosmosGeoPoint":38,"geoPoint":43,"contacts":44},"Martini Ziekenhuis","NOT_YET_RECRUITING","Groningen","9728 NZ","Netherlands","NL",{"type":39,"coordinates":40},"Point",[41,42],6.56667,53.21917,{"lat":42,"lon":41},[45,46,49,51,53],{"name":22,"role":23,"phone":24,"phoneExt":10,"email":25},{"name":47,"role":48,"phone":10,"phoneExt":10,"email":10},"Emma Paternotte, MD","SUB_INVESTIGATOR",{"name":50,"role":48,"phone":10,"phoneExt":10,"email":10},"Frederieke Siemens, MD\u002FPhD",{"name":52,"role":48,"phone":10,"phoneExt":10,"email":10},"Merel Wielink, MD",{"name":54,"role":48,"phone":10,"phoneExt":10,"email":10},"Pamela Schedelaar, MD\u002FPhD",{"facility":56,"status":57,"city":34,"state":10,"zip":35,"country":36,"countryCode":37,"cosmosGeoPoint":58,"geoPoint":60,"contacts":10},"Martini ziekenhuis","RECRUITING",{"type":39,"coordinates":59},[41,42],{"lat":42,"lon":41},{"type":62,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR",[64,67,69,71],{"name":65,"class":66},"Antonius Ziekenhuis","UNKNOWN",{"name":68,"class":6},"Reinier de Graaf Groep",{"name":70,"class":66},"sportgeneeskunde Friesland",{"name":72,"class":66},"sport medisch centrum tilburg","100564819","cycling-through-the-menstrual-cycle-100564819",false,"NCT06634134","Cycling Through the Menstrual Cycle","Hoe Fietst de Vrouwelijke Wielrenner Door Haar Menstruatiecyclus?","Inclusion Criteria:\n\n* JOIN cycling app member\n* female cyclist\n* informed consent period tracking in JOIN\n\nExclusion Criteria:\n\n* none",true,"FEMALE","12 Years","60 Years",{"count":85,"type":86},750,"ESTIMATED","OBSERVATIONAL","With an increase in number of female athletes in sport events, it is becoming more important to gain insight in female related sports physiology. A main difference between male anf female athletes is the menstrual cycle. During the menstrual cycle, female reproductive hormones fluctuate. These hormones are also of influence on endurance, recovery, muscle strenght and mental state. Therefore we hypothesize that training efficiancy, power and motivation to train differ during the menstrual cycle. In case there is a pattern seen during the menstrual cycle, training programs can be individualized taking the menstrual cycle into account leading to more effective training programs.",[90,91,92],"Menstrual Cycle-based Periodized Training","Female Athlete Triad","Menstrual Cycle",[92,94,95,91,96,97],"Artificial Intelligence","Cycling","Female Athletes","Menstrual Cycle-based Periodized training","2025-07-24",{"date":100,"type":101},"2025-07-28","ACTUAL",{"date":103,"type":101},"2024-10-10",{"date":105,"type":86},"2028-01-01",{"name":5,"class":6},2]