High-intensity Interval Training on Cardiorespiratory Fitness in Overweight Women
Effect of Low-volume High-intensity Interval Training on Cardiorespiratory Fitness and Total Body Fat in Overweight Women
High-intensity interval training (HIIT) is currently considered one of the most effective strategies to improved cardiorespiratory fitness, which is recognized as a protective factor for cardiovascular diseases and metabolic diseases such as overweight and obesity. However, current evidence is still limited and requires clarity (frequency, time per session and intensity) regarding to greater increases attributed to HIIT.
The aim of this study is to compare the effect of a low-volume high-intensity interval training versus a moderate-intensity continuous exercise on maximal oxygen consumption in overweight women 18 to 44 years old.
연구 개요
상태
정황
상세 설명
Thirty-six women will be randomly assigned to one of two aerobic exercise on a real-life setting supervised for a physical activity instructor. The interventions will performed three times a week for ten-weeks (on alternate days).
The first two weeks will correspond to the conditioning period (30 minutes between 55-65% of maximum heart rate (HRmax). From week three, 18 participants will perform 30 minutes of continuous exercise at an intensity between 65-75 % of HRmax, and the remaining 18 will complete 21.5 minutes of interval exercise at an intensity between 90-95% of HRmax, with recoveries between 50-55% of HRmax.
All Participants will be evaluated to measure their maximal oxygen consumption, total body fat, waist circumference, body mass index, systolic blood pressure, diastolic blood pressure, prior to start the interventions and at the end of the program (week 11).
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Antioquia
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Medellín, Antioquia, 콜롬비아
- Universidad de Antioquia
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Overweight (≥ 25 kg/m-2) women 18 to 44 years.
- Healthy volunteers.
- Perform ≤ 600 Met/min/week.
Exclusion Criteria:
- Perform high-intensity interval exercise in the last six month.
- Smoker.
- History of asthma.
- History of diabetes.
- History of hypertension.
- History of cardiovascular disease.
- History of coronary heart disease.
- Arrhythmias.
- Personal history of surgical procedures in the last three months
- Uncontrolled non-communicable diseases
- Under medical treatment with anticoagulants, beta-blockers, calcium antagonists, bronchodilators, and/or steroids.
- Psychological, neuromotor and/or osteo-muscular conditions that may affect participation in an exercise program.
- Psychoactive drug abuse.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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실험적: 고강도 인터벌 트레이닝
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21.5 minutes of high-intensity interval exercise at an intensity between 90-95 of HRmax (15x30 s), with recoveries at 50-60% of HRmax (14x60 s).
24 sessions, 3x weekly of walking and running outdoors on a sports field in a supervised manner.
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활성 비교기: Moderate-intensity continuous exercise
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30 minutes of continuous exercise at an intensity between 65-75% of HRmax.
24 sessions, 3x weekly of walking and jogging outdoors on a sports field in a supervised manner
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Change in maximal oxygen consumption
기간: Baseline and after 10 weeks
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Maximal oxygen consumption will be obtained using a graded exercise test on a treadmill (Trackmaster® model TMX 425C) using a portable K4b2 gas analyzer (Cosmed Inc., IL, USA)
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Baseline and after 10 weeks
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Change in total body fat
기간: Baseline and after 10 weeks
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Total body fat will be obtained using an Omron® HBF-510 (Omron Healthcare, Inc. Bannockburn, IL, USA) bioelectrical impedance machine.
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Baseline and after 10 weeks
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공동 작업자 및 조사자
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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. .
High-intensity interval training에 대한 임상 시험
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