이 페이지는 자동 번역되었으며 번역의 정확성을 보장하지 않습니다. 참조하십시오 영문판 원본 텍스트의 경우.

Effects of Hourly Stair-Climbing Exercise Snacks on Metabolic and Vascular Health in Adults With Prediabetes (RISE UP)

2026년 9월 23일 업데이트: Hossein Rafiei, St. Louis University

RISE UP: Rapid Intense Stair Exercise for Unleashing Metabolic Potential in Prediabetes

This study will examine whether very short bouts of stair climbing performed throughout the day can improve blood sugar control and cardiovascular health in adults with prediabetes. Participants will complete three separate study visits in random order: uninterrupted sitting, sitting interrupted by 3-minute light walking breaks each hour, and sitting interrupted by brief stair-climbing exercise "snacks" each hour.

During each visit, the research team will measure glucose, insulin, blood lipids, markers of inflammation and oxidative stress, and blood-vessel function. Continuous glucose monitors, blood samples, heart-rate and blood-pressure measurements, vascular ultrasound, and questionnaires will be used to assess the participants' responses.

The goal of the study is to determine whether brief stair-climbing breaks may be a practical way to reduce the negative effects of prolonged sitting and improve metabolic health in adults with prediabetes.

연구 개요

상태

모병

정황

개입 / 치료

상세 설명

This is a single-site, randomized, counterbalanced crossover pilot study evaluating the acute metabolic, vascular, and behavioral effects of interrupting prolonged sitting with brief stair-climbing exercise snacks in adults with prediabetes. A total of 20 participants will complete all three experimental conditions in randomized order, with a washout period of at least 7 days between visits.

The three experimental conditions are: (1) uninterrupted sitting, (2) sitting interrupted each hour by a 3-minute light walking break, and (3) sitting interrupted each hour by a brief stair-climbing exercise snack consisting of approximately 20 seconds of stair ascent at a fast but safe self-selected pace.

Participants will attend each experimental visit after an overnight fast. Two standardized meals will be provided during each approximately 6-hour experimental visit: Meal 1 at the beginning of the postprandial testing period and Meal 2 approximately 180 minutes later. Metabolic responses will be assessed using continuous glucose monitoring and serial blood sampling for glucose, insulin, lipids, inflammatory markers, and oxidative stress markers. Vascular responses will be assessed using noninvasive ultrasound. Heart rate, blood pressure, ratings of perceived exertion, symptoms, and participant-reported feasibility and acceptability will also be assessed.

The study is designed to determine whether brief hourly stair-climbing exercise snacks improve postprandial glucose and insulin responses and other cardiometabolic outcomes compared with uninterrupted sitting and light walking breaks, and to explore the feasibility and acceptability of this approach in adults with prediabetes.

연구 유형

중재적

등록 (추정된)

20

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

    • Missouri
      • St Louis, Missouri, 미국, 63104

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

설명

Inclusion Criteria:

Age 18 to 69 years, inclusive. Body mass index (BMI) 25.0 to 40.0 kg/m², inclusive.

Objectively confirmed prediabetes based on at least one of the following:

  • HbA1c 5.7% to 6.4%;
  • fasting plasma glucose 100 to 125 mg/dL; or
  • 2-hour plasma glucose 140 to 199 mg/dL during a 75-g oral glucose tolerance test.

Able to understand study procedures and provide written informed consent in English.

Able to safely perform repeated walking and vigorous stair-climbing activity based on medical history, resting vital signs, PAR-Q+ responses, investigator assessment, and medical clearance when required.

Able to safely undergo repeated venous blood collection and IV-catheter placement.

Able to safely consume the standardized study meals. Willing and able to complete all three experimental conditions and comply with fasting, dietary, physical-activity, medication, and pre-visit standardization instructions.

Exclusion Criteria:

BMI below 25.0 kg/m² or above 40.0 kg/m². Diagnosed type 1 or type 2 diabetes mellitus. Laboratory findings that do not confirm prediabetes or that suggest diabetes, including HbA1c ≥6.5%, fasting plasma glucose ≥126 mg/dL, or 2-hour plasma glucose ≥200 mg/dL during a 75-g oral glucose tolerance test.

Cardiovascular, pulmonary, musculoskeletal, neurological, or other medical conditions that would preclude safe participation in the walking or stair-climbing interventions.

Resting vital signs, current symptoms, or other screening findings indicating that exercise participation would be unsafe.

Pregnancy, plans to become pregnant during the study period, or breastfeeding. Current use of medications that may substantially affect glucose metabolism, lipid metabolism, body weight, study outcomes, or safe participation, including insulin, glucose-lowering medications, GLP-1 receptor agonists, pharmacologic weight-loss medications, systemic corticosteroids, or other medications judged by the investigator to interfere with study outcomes or safety.

Contraindications to vascular ultrasound, repeated blood collection, IV-catheter placement, or exercise participation.

Food allergies, intolerances, or dietary restrictions that prevent safe consumption of the standardized study meals.

Known allergy or severe skin sensitivity to adhesives used with continuous glucose monitors.

Bleeding disorder, current anticoagulant use, history of anemia, recent blood donation, recurrent fainting during blood collection, difficult venous access, or another condition judged to create unacceptable risk from repeated blood sampling or IV-catheter placement.

Inability to safely perform repeated walking or stair climbing. PAR-Q+ result requiring further medical evaluation when the participant does not obtain required written medical clearance.

Any other condition or finding that, in the judgment of the Principal Investigator or qualified study investigator, would make participation unsafe or substantially interfere with completion of study procedures.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 크로스오버 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
간섭 없음: Uninterrupted Sitting

Participants will remain seated throughout the approximately 6-hour experimental visit, except as needed for study procedures. At the time points corresponding to activity bouts in the walking and stair-climbing conditions, participants will remain seated. This condition serves as the sedentary control condition.

활성 비교기: Hourly 3-Minute Light Walking Breaks

Participants will interrupt prolonged sitting with a 3-minute light walking break at approximately 30, 90, 150, 210, 270, and 330 minutes during the approximately 6-hour experimental visit. Walking breaks will therefore occur at 60-minute intervals.

Participants will interrupt prolonged sitting with a 3-minute light walking break at approximately 30, 90, 150, 210, 270, and 330 minutes during the approximately 6-hour experimental visit. Activity breaks are therefore separated by approximately 60 minutes. Participants will otherwise remain seated except as required for study procedures.

실험적: Hourly Stair-Climbing Exercise Snacks

Participants will interrupt prolonged sitting with brief stair-climbing exercise snacks at approximately 30, 90, 150, 210, 270, and 330 minutes during the approximately 6-hour experimental visit. During each bout, participants will ascend approximately three flights of stairs at a fast but safe self-selected pace for about 20 seconds.

Participants will interrupt prolonged sitting with brief stair-climbing exercise snacks at approximately 30, 90, 150, 210, 270, and 330 minutes during the approximately 6-hour experimental visit. During each bout, participants will ascend approximately three flights of stairs at a fast but safe self-selected pace for about 20 seconds. Participants will not run or skip steps, and use of the handrail will be permitted as needed.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
6-Hour Postprandial Glucose Area Under the Curve (AUC)
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma glucose will be measured from a fasting venous blood sample obtained before Meal 1 and from serial venous blood samples collected every 30 minutes through 360 minutes after Meal 1 completion. Meal 1 completion will define the start of the postprandial period, and a second standardized meal will be provided at approximately 180 minutes. Plasma glucose AUC will be calculated across the 6-hour experimental period and compared among uninterrupted sitting, hourly 3-minute light walking breaks, and hourly stair-climbing exercise snacks.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion
6-Hour Postprandial Plasma Insulin Area Under the Curve (AUC)
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma insulin will be measured from a fasting venous blood sample obtained before Meal 1 and from prespecified serial venous blood samples collected through 360 minutes after Meal 1 completion. Meal 1 completion will define time 0, and a second standardized meal will be provided at approximately 180 minutes. Insulin AUC will be calculated across the 0- to 360-minute experimental period and compared among uninterrupted sitting, hourly 3-minute light walking breaks, and hourly stair-climbing exercise snacks.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

2차 결과 측정

결과 측정
측정값 설명
기간
6-Hour Postprandial Plasma Free Fatty Acid Response
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma free fatty acids will be measured from prespecified serial venous blood samples collected during each experimental visit. A fasting baseline sample will be obtained before Meal 1, followed by postprandial sampling through 360 minutes after Meal 1. Free fatty acid responses across the postprandial period will be compared among uninterrupted sitting, hourly 3-minute light walking breaks, and hourly stair-climbing exercise snacks.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion
6-Hour Postprandial Plasma Triglyceride Response
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma triglycerides will be measured from prespecified serial venous blood samples collected during each experimental visit. A fasting baseline sample will be obtained before Meal 1, followed by postprandial sampling through 360 minutes after Meal 1. Triglyceride responses across the postprandial period will be compared among the three experimental conditions.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion
Postprandial Plasma Malondialdehyde (MDA)
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma malondialdehyde (MDA), a marker of oxidative stress, will be measured from prespecified venous blood samples collected during each experimental visit. A fasting baseline sample will be obtained before Meal 1, with postprandial assessment through 360 minutes after Meal 1. MDA responses will be compared among uninterrupted sitting, hourly 3-minute light walking breaks, and hourly stair-climbing exercise snacks.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion
Postprandial Plasma Inflammatory Cytokines (TNF-α and IL-6)
기간: From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion

Plasma tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) will be measured from prespecified venous blood samples collected during each experimental visit. A fasting baseline sample will be obtained before Meal 1, with postprandial assessment through 360 minutes after Meal 1. TNF-α and IL-6 responses will be compared among uninterrupted sitting, hourly 3-minute light walking breaks, and hourly stair-climbing exercise snacks.

From fasting baseline before Meal 1 through 360 minutes after Meal 1 completion
Change in Superficial Femoral Artery Diameter
기간: Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion

Superficial femoral artery diameter will be assessed using noninvasive Duplex ultrasound before and after each experimental condition. B-mode ultrasound images will be used to quantify arterial diameter, and changes will be compared among uninterrupted sitting, hourly light walking breaks, and hourly stair-climbing exercise snacks.

Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion
Change in Superficial Femoral Artery Blood-Flow Velocity
기간: Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion

Superficial femoral artery blood-flow velocity will be assessed using Doppler ultrasound before and after each experimental condition. Changes in blood-flow velocity will be compared among uninterrupted sitting, hourly light walking breaks, and hourly stair-climbing exercise snacks.

Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion
Change in Superficial Femoral Artery Shear Pattern
기간: Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion

Superficial femoral artery shear patterns will be derived from vascular ultrasound measurements obtained before and after each experimental condition. Changes in shear patterns will be compared among uninterrupted sitting, hourly light walking breaks, and hourly stair-climbing exercise snacks.

Baseline before Meal 1 and at the end of the 6-hour experimental period, approximately 360 minutes after Meal 1 completion
Heart Rate Response to Activity Bouts
기간: Immediately before and immediately after activity bouts at approximately 30, 90, 150, 210, 270, and 330 minutes after Meal 1 completion

Heart rate will be recorded immediately before and immediately after each walking or stair-climbing bout, with measurements obtained at corresponding matched time points during the uninterrupted-sitting condition. Heart rate responses will be compared among the three experimental conditions.

Immediately before and immediately after activity bouts at approximately 30, 90, 150, 210, 270, and 330 minutes after Meal 1 completion
Rating of Perceived Exertion During Activity Bouts
기간: Immediately after activity bouts at approximately 30, 90, 150, 210, 270, and 330 minutes after Meal 1 completion

Rating of perceived exertion will be assessed using the Borg Rating of Perceived Exertion Scale (6-20) immediately after each walking and stair-climbing bout. Higher scores indicate greater perceived exertion. Ratings will be used to characterize perceived exercise intensity across the active conditions.

Immediately after activity bouts at approximately 30, 90, 150, 210, 270, and 330 minutes after Meal 1 completion
End-of-Study Acceptability and Practicality Questionnaire Responses
기간: After completion of the final experimental visit, approximately 3 to 6 weeks after enrollment

Participants will complete the RISE UP End-of-Study Acceptability, Practicality, and Potential Adoption Questionnaire after the final experimental visit. Items assess acceptability, enjoyment, practicality, confidence, perceived usefulness, and willingness for future adoption. Agreement items use a 5-point response scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Higher scores indicate greater agreement with the individual statement. Because the questionnaire includes both positively and negatively worded items and no overall score will be calculated, higher scores do not uniformly indicate a better or worse outcome. Individual questionnaire items will be summarized separately.

After completion of the final experimental visit, approximately 3 to 6 weeks after enrollment
Participant-Reported Barriers and Facilitators to Implementation
기간: After completion of the final experimental visit, approximately 3 to 6 weeks after enrollment

Participants will report perceived barriers and facilitators to implementing brief stair-climbing exercise snacks in daily life using questionnaire items and open-ended responses. Closed-ended barrier items use a 5-point response scale ranging from 1 (Strongly disagree) to 5 (Strongly agree), with higher scores indicating greater agreement that the specified factor represents a barrier. Open-ended responses will be summarized qualitatively. No overall barriers or facilitators score will be calculated.

After completion of the final experimental visit, approximately 3 to 6 weeks after enrollment

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

수사관

  • 수석 연구원: Hossein Rafiei, PhD, RD, ACSM-CPT, St. Louis University

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

일반 간행물

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 10월 1일

기본 완료 (추정된)

2027년 7월 1일

연구 완료 (추정된)

2027년 7월 1일

연구 등록 날짜

최초 제출

2026년 9월 16일

QC 기준을 충족하는 최초 제출

2026년 9월 23일

처음 게시됨 (실제)

2026년 9월 29일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 9월 29일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 9월 23일

마지막으로 확인됨

2026년 9월 1일

추가 정보

이 연구와 관련된 용어

기타 연구 ID 번호

  • STUDY00000085
  • PROJ-000884 (기타 보조금/기금 번호: Saint Louis University)

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

예

IPD 계획 설명

De-identified individual participant data underlying the results reported in the primary publication may be shared upon reasonable request to the Principal Investigator, subject to institutional policies, applicable ethical and privacy requirements, and execution of an appropriate data-use agreement when required.

IPD 공유 기간

Beginning 6 months after publication of the primary study results and continuing for 5 years.

IPD 공유 액세스 기준

De-identified individual participant data underlying the published results and selected supporting materials may be made available to qualified researchers upon reasonable request to the Principal Investigator. Requests should include a scientifically sound proposal describing the planned analyses and intended use of the data. Access will be subject to applicable Saint Louis University policies, ethical and privacy requirements, and execution of a data-use agreement when required. Data will not include direct participant identifiers.

IPD 공유 지원 정보 유형

  • 연구_프로토콜
  • 수액

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .