[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100606822":3},{"organization":4,"armGroups":7,"interventions":39,"overallOfficials":44,"centralContacts":63,"locations":70,"responsibleParty":113,"collaborators":115,"id":118,"slug":119,"hasResults":120,"nctId":121,"briefTitle":122,"officialTitle":123,"acronym":124,"eligibilityCriteria":125,"healthyVolunteers":126,"sex":127,"minAge":128,"maxAge":129,"enrollmentInfo":130,"targetDuration":44,"studyType":133,"phases":134,"briefSummary":136,"conditions":137,"keywords":144,"overallStatus":73,"whyStopped":44,"lastUpdateSubmitDate":150,"lastUpdatePostDateStruct":151,"startDateStruct":154,"completionDateStruct":156,"leadSponsor":158,"locationsCount":159},{"fullName":5,"class":6},"European University Miguel de Cervantes","OTHER",[8,14,19,24,29,34],{"label":9,"type":10,"description":11,"interventionNames":12},"High-intensity interval training (running)","EXPERIMENTAL","Participants will perform a high-intensity interval training based on six sets of 2-minute runs at an intensity of 90-95% of the maximal aerobic speed (MAS) on a treadmill. The recovery between each set will be 2 minutes, during which the subject will walk at an intensity of 50-60% of MAS.",[13],"Other: High-intensity interval training, running",{"label":15,"type":10,"description":16,"interventionNames":17},"High-intensity interval training (cycling)","Participants will perform a high-intensity interval training based on six sets of 2-minute cycling will be performed at an intensity of 90-95% of the maximal heart rate on a stationary bike. The recovery between each set will be 2 minutes, during which the subject will cycle at an intensity of 50-60% of maximal heart rate.",[18],"Other: High-intensity interval training, cycling",{"label":20,"type":10,"description":21,"interventionNames":22},"High-intensity functional training","Participants will perform a high-intensity functional training based on three sets of six repetitions will be performed at 80% of the one repetition maximum (1-RM) for six exercises. The recovery between exercises will be the minimum time required to switch from one exercise to the next, and between sets, it will be two minutes. Participants will be instructed to move the load as quickly as possible during each repetition.",[23],"Other: High-intensity functional training",{"label":25,"type":10,"description":26,"interventionNames":27},"Moderate-intensity functional training","Participants will perform a moderate-intensity functional training based on three sets of six repetitions will be performed at 60% of the 1-RM for six exercises. The recovery between exercises will be the minimum time required to switch from one exercise to the next, and between sets, it will be two minutes. Participants will be instructed to move the load as quickly as possible during each repetition.",[28],"Other: Moderate-intensity functional training",{"label":30,"type":10,"description":31,"interventionNames":32},"High-intensity traditional training","Participants will perform a high-intensity traditional training based on three sets of six repetitions will be performed at 80% of the 1-RM for six exercises. The recovery after each set will be two minutes of passive rest. Participants will be instructed to move the load as quickly as possible during each repetition.",[33],"Other: High intensity traditional strength training",{"label":35,"type":10,"description":36,"interventionNames":37},"Moderate-intensity traditional training","Participants will perform a high-intensity traditional training based on three sets of six repetitions will be performed at 60% of the 1-RM for six exercises. The recovery after each set will be two minutes of passive rest. Participants will be instructed to move the load as quickly as possible during each repetition.",[38],"Other: Moderate intensity traditional strength training",[40,45,49,52,55,59],{"type":6,"name":41,"description":42,"armGroupLabels":43,"otherNames":44},"High-intensity interval training, running","Six sets of 2-minute runs will be performed at an intensity of 90-95% of the maximal aerobic speed (MAS) on a treadmill. The recovery between each set will be 2 minutes, during which the subject will walk at an intensity of 50-60% of MAS.",[9],null,{"type":6,"name":46,"description":47,"armGroupLabels":48,"otherNames":44},"High-intensity interval training, cycling","Six sets of 2-minute cycling will be performed at an intensity of 90-95% of the maximal heart rate on a stationary bike. The recovery between each set will be 2 minutes, during which the subject will cycle at an intensity of 50-60% of maximal heart rate.",[15],{"type":6,"name":20,"description":50,"armGroupLabels":51,"otherNames":44},"Three sets of six repetitions will be performed at 80% of the one repetition-maximum (1-RM) for six exercises. The recovery between exercises will be the minimum time required to switch from one exercise to the next, and between sets, it will be two minutes. Participants will be instructed to move the load as quickly as possible during each repetition.",[20],{"type":6,"name":25,"description":53,"armGroupLabels":54,"otherNames":44},"Three sets of six repetitions will be performed at 60% of the 1-RM for six exercises. The recovery between exercises will be the minimum time required to switch from one exercise to the next, and between sets, it will be two minutes. Participants will be instructed to move the load as quickly as possible during each repetition.",[25],{"type":6,"name":56,"description":57,"armGroupLabels":58,"otherNames":44},"Moderate intensity traditional strength training","Three sets of six repetitions will be performed at 60% of the 1-RM for six exercises. The recovery after each set will be two minutes of passive rest. Participants will be instructed to move the load as quickly as possible during each repetition.",[35],{"type":6,"name":60,"description":61,"armGroupLabels":62,"otherNames":44},"High intensity traditional strength training","Three sets of six repetitions will be performed at 80% of the 1-RM for six exercises. The recovery after each set will be two minutes of passive rest. Participants will be instructed to move the load as quickly as possible during each repetition.",[30],[64,69],{"name":65,"role":66,"phone":67,"phoneExt":44,"email":68},"Susana López Ortiz, PhD","CONTACT","983001000","cbaladron@icicor.es",{"name":65,"role":66,"phone":44,"phoneExt":44,"email":68},[71],{"facility":72,"status":73,"city":74,"state":74,"zip":75,"country":76,"countryCode":77,"cosmosGeoPoint":78,"geoPoint":83,"contacts":84},"Miguel de Cervantes European University","RECRUITING","Valladolid","47012","Spain","ES",{"type":79,"coordinates":80},"Point",[81,82],-4.72353,41.65541,{"lat":82,"lon":81},[85,90,94,97,99,101,103,105,108,110,112],{"name":86,"role":66,"phone":87,"phoneExt":88,"email":89},"Francisco Javier Gutiérrez Pecharromán","+34 983001000","22293","dit@uemc.es",{"name":91,"role":66,"phone":87,"phoneExt":92,"email":93},"Susana López-Ortiz, PhD","22292","slopezo@uemc.es",{"name":95,"role":96,"phone":44,"phoneExt":44,"email":44},"María Merino-País, MsC","SUB_INVESTIGATOR",{"name":98,"role":96,"phone":44,"phoneExt":44,"email":44},"Celia García-Chico, MsC",{"name":100,"role":96,"phone":44,"phoneExt":44,"email":44},"Sergio Maroto-Izquierdo, PhD",{"name":102,"role":96,"phone":44,"phoneExt":44,"email":44},"Saúl Peñín-Grandes, PhD",{"name":104,"role":96,"phone":44,"phoneExt":44,"email":44},"Alejandro Santos-Lozano, PhD",{"name":106,"role":107,"phone":44,"phoneExt":44,"email":44},"Pablo Elpidio García Granja, PhD","PRINCIPAL_INVESTIGATOR",{"name":109,"role":107,"phone":44,"phoneExt":44,"email":44},"Carlos Baladrón Zorita, PhD",{"name":111,"role":96,"phone":44,"phoneExt":44,"email":44},"Miguel Matesanz González, BSc",{"name":91,"role":107,"phone":44,"phoneExt":44,"email":44},{"type":114,"investigatorFullName":44,"investigatorTitle":44,"investigatorAffiliation":44,"oldNameTitle":44,"oldOrganization":44},"SPONSOR",[116],{"name":117,"class":6},"Hospital Clínico Universitario de Valladolid","100606822","acute-effects-of-high-intensity-interval-aerobic-and-functional-training-at-different-intensities-100606822",false,"NCT07180550","Acute Effects of High-intensity Interval Aerobic and Functional Training at Different Intensities","Evaluation of the Acute Effects of High-intensity Interval Aerobic Training, Moderate- and High-intensity Functional Training, and Moderate-intensity Functional Training","HIIT-HIFT-FT","Inclusion Criteria:\n\n* Be 18 years of age or older.\n* Have at least 6 months of experience in strength training with intensities greater than 75% of one maximum repetition (1-RM).\n* Be classified as active according to the International Physical Activity Questionnaire (IPAQ) score.\n\nExclusion Criteria:\n\n* Musculoskeletal injury within the 6 months prior to the first visit to the laboratory.\n* Recent major surgery (\\\u003C3 months).\n* Having a medical condition in which physical activity is contraindicated (assessed with the Physical Activity Readiness Questionnaire, PAR-Q+).",true,"ALL","18 Years","100 Years",{"count":131,"type":132},27,"ESTIMATED","INTERVENTIONAL",[135],"NA","Moderate-intensity physical exercise is widely recognized for its health benefits, yet time constraints limit adherence. High-intensity interval training (HIIT) has gained popularity as a more time-efficient alternative, eliciting significant cardiovascular, respiratory, metabolic, and neuromuscular responses. More recently, functional strength exercises have been integrated into high-intensity training, leading to high-intensity functional training (HIFT) and moderate-intensity functional training (MIFT). However, the acute physiological responses to these modalities remain underexplored compared to traditional HIIT (running or cycling) and strength training. This study aims to assess and compare the acute cardiovascular, metabolic, and neuromuscular responses of HIFT, MIFT, HIIT, and traditional strength training in healthy, physically active adults to inform their potential application in special populations.",[138,139,140,141,142,143],"High Intensity Interval Training (Cycling)","High Intensity Interval Training (Running)","High Intensity Functional Training","Moderate Intensity Functional Training","High Intensity Traditional Strength Training","Moderate Intensity Traditional Strength Training",[145,146,147,148,149],"Metabolic demand","Oxygen consumption","Heart rate variability","Interval training","Strength training","2026-03-09",{"date":152,"type":153},"2026-03-10","ACTUAL",{"date":155,"type":153},"2025-10-12",{"date":157,"type":132},"2027-01-31",{"name":5,"class":6},1]