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Individualized Training to Improve Aerobic Capacity and 2,000 m Rowing Performance in Youth Rowers

2026年5月15日 更新者:Johnattan Cano Montoya、Universidad San Sebastián

Effects of Ventilatory Threshold-Based Individualized Training on Aerobic Capacity and 2,000 m Rowing Performance in Youth Rowers From Valdivia: A Randomized Controlled Trial

The goal of this randomized clinical trial is to learn whether an individualized rowing training program based on ventilatory thresholds can improve aerobic capacity and 2,000 m rowing performance in youth rowers from Valdivia, Chile. The study will include male and female rowers aged 14 to 18 years who train regularly at Club de Remeros Arturo Prat.

The main questions it aims to answer are:

Does ventilatory threshold-based individualized training improve maximal oxygen uptake compared with the usual club training program? Does ventilatory threshold-based individualized training improve 2,000 m rowing ergometer performance compared with the usual club training program?

Researchers will compare an individualized training group with a usual training group to see if prescribing exercise intensity based on each rower's ventilatory thresholds produces greater improvements in aerobic capacity, rowing performance, and related physiological measures.

Participants will:

Complete baseline and post-intervention assessments, including a cardiopulmonary exercise test on a rowing ergometer, blood lactate measurements during an incremental rowing test, a 2,000 m rowing ergometer test, body composition assessment, and respiratory muscle strength testing.

Be randomly assigned to either an individualized training group or a usual training group.

Complete a 12-week rowing training program. Use heart rate monitors during study training sessions so that training intensity, adherence, and safety can be monitored.

Report any discomfort, injuries, or adverse events during the study.

The individualized training group will train according to heart rate zones derived from each participant's ventilatory thresholds measured at baseline. The usual training group will continue the club's regular training program. The study will also explore individual variability in training response and the proportion of participants who respond or do not respond to each training approach.

調査の概要

詳細な説明

This study will be conducted in youth rowers from Club de Remeros Arturo Prat in Valdivia, Chile. Rowing performance over 2,000 m depends on aerobic capacity, submaximal physiological markers, and the ability to sustain high power output during a race-specific effort. In many youth rowing settings, training intensity is commonly prescribed using coach experience, stroke rate, perceived exertion, heart rate responses, and field-based performance tests. However, individualized physiological markers, such as the first and second ventilatory thresholds, may provide a more precise approach to exercise intensity prescription.

This randomized controlled trial will compare a 12-week individualized rowing training program based on ventilatory thresholds with the usual training program used by the club. Participants will be male and female rowers aged 14 to 18 years who train regularly under technical supervision. After baseline assessments, participants will be randomly assigned to either an individualized training group or a usual training group.

Both groups will maintain a comparable overall rowing training volume. The main difference between groups will be how training intensity is prescribed and monitored. In the individualized training group, heart rate training zones will be derived from each participant's baseline ventilatory thresholds obtained during cardiopulmonary exercise testing on a rowing ergometer. In the usual training group, participants will continue the regular club training program, guided by the coaching staff according to usual practice.

Participants will be assessed before and after the intervention. The primary outcomes will be maximal oxygen uptake and 2,000 m rowing ergometer performance. Secondary outcomes will include power output associated with ventilatory thresholds, blood lactate response during incremental exercise, body composition, maximal inspiratory and expiratory pressures, training adherence, training load, and adverse events. The study will also explore the magnitude of training effects, interindividual variability in response, and the proportion of responders and non-responders in each group.

The purpose of this trial is to determine whether ventilatory threshold-based individualized training produces greater physiological and performance adaptations than usual training in youth rowers under real-world club training conditions.

研究の種類

介入

入学 (推定)

44

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • Los Ríos Region
      • Valdivia、Los Ríos Region、チリ、Valdivia
        • Universidad San Sebastián, Valdivia Campus
        • コンタクト:
        • コンタクト:
        • 主任研究者:
          • Johnattan Cano Montoya, MSc.

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 子
  • 大人

健康ボランティアの受け入れ

はい

説明

Inclusion Criteria:

  • Active membership in Club de Remeros Arturo Prat of Valdivia.
  • Age between 14 and 18 years.
  • Systematic rowing training of at least 3 sessions per week under technical supervision.
  • Participation in federated competitions or internal selection processes.
  • Medical clearance for intense physical exercise issued by a treating physician or competent institution, such as a pre-participation medical evaluation.

Exclusion Criteria:

  • History of uncontrolled cardiovascular, respiratory, or metabolic disease that contraindicates intense exercise, such as structural heart disease, clinically significant arrhythmias, or uncontrolled asthma.
  • Acute or chronic musculoskeletal injury that prevents completion of the training program or study assessments.
  • Use of medications that may substantially modify the physiological response to exercise, such as beta-blockers, or declared history of doping.
  • Acute illness at the time of assessment, including fever, infection, or respiratory symptoms.
  • Cognitive, language, or behavioral difficulties that prevent understanding instructions or complying with the study protocol.
  • Simultaneous participation in another exercise intervention study.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:他の
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:独身

武器と介入

参加者グループ / アーム
介入・治療
実験的:Individualized Training
Participants in this arm will complete a 12-week individualized rowing training program. Training intensity will be prescribed using heart rate zones derived from each participant's first and second ventilatory thresholds measured during baseline cardiopulmonary exercise testing on a rowing ergometer. Training sessions will include rowing on a rowing ergometer and/or on water, according to the club schedule. Coaches will adjust stroke rate, power output, effort duration, or recovery periods to maintain the target intensity zone. Heart rate monitors will be used during study training sessions to monitor intensity and adherence.
A 12-week rowing training program in which exercise intensity is individualized using heart rate zones derived from the first and second ventilatory thresholds measured at baseline during cardiopulmonary exercise testing on a rowing ergometer. Three training zones will be defined for each participant: below the first ventilatory threshold, between the first and second ventilatory thresholds, and above the second ventilatory threshold. Coaches will adjust stroke rate, power output, effort duration, or recovery periods to maintain the target intensity zone during study training sessions.
アクティブコンパレータ:Usual Training
Participants in this arm will continue the usual 12-week rowing training program used by the club. Training will be prescribed and supervised by the coaching staff according to standard practice, including coach experience, stroke rate, perceived exertion, heart rate responses, training volume, and field-based performance references. The overall rowing training volume will be comparable to the individualized training group. Heart rate monitors will be used during study training sessions to document training load, intensity, and adherence.
A 12-week usual rowing training program prescribed and supervised by the club coaching staff according to standard practice. Training intensity will be guided by usual coaching criteria, including stroke rate, perceived exertion, heart rate responses, training volume, and field-based performance references. Heart rate monitors will be used during study training sessions to document training load, intensity, and adherence.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in Maximal Oxygen Uptake
時間枠:Baseline and 12 weeks
Change in maximal oxygen uptake measured during a maximal cardiopulmonary exercise test on a rowing ergometer. VO2max will be defined as the highest oxygen uptake value obtained during the incremental test according to predefined maximality criteria. Unit of Measure: mL/kg/min
Baseline and 12 weeks
Change in 2,000 m Rowing Ergometer Performance Time
時間枠:Baseline and 12 weeks
Change in the total time required to complete a standardized 2,000 m rowing ergometer test performed at maximal self-selected intensity. Unit of Measure: seconds
Baseline and 12 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Peak Power Output
時間枠:Baseline and 12 weeks
Change in peak power output achieved during the maximal incremental cardiopulmonary exercise test on a rowing ergometer. Unit: watts.
Baseline and 12 weeks
Change in Power Output at the First Ventilatory Threshold
時間枠:Baseline and 12 weeks
Change in rowing ergometer power output associated with the first ventilatory threshold identified during cardiopulmonary exercise testing. Unit of Measure: watts
Baseline and 12 weeks
Change in Power Output at the Second Ventilatory Threshold
時間枠:Baseline and 12 weeks
Change in rowing ergometer power output associated with the second ventilatory threshold identified during cardiopulmonary exercise testing. Unit of Measure: watts
Baseline and 12 weeks
Change in Oxygen Uptake at the First Ventilatory Threshold
時間枠:Baseline and 12 weeks
Change in oxygen uptake associated with the first ventilatory threshold measured during the incremental cardiopulmonary exercise test on a rowing ergometer. Unit: mL/kg/min
Baseline and 12 weeks
Change in Oxygen Uptake at the Second Ventilatory Threshold
時間枠:Baseline and 12 weeks
Change in oxygen uptake associated with the second ventilatory threshold measured during the incremental cardiopulmonary exercise test on a rowing ergometer. Unit: mL/kg/min
Baseline and 12 weeks
Change in Power Output at 4 mmol/L Blood Lactate Concentration
時間枠:Baseline and 12 weeks
Change in rowing ergometer power output associated with a blood lactate concentration of 4 mmol/L during the incremental rowing exercise test. Capillary blood lactate will be measured at the end of each stage, and the corresponding power output will be used to characterize the submaximal metabolic response to increasing exercise intensity. Unit of Measure: watts
Baseline and 12 weeks
Change in Body Fat Percentage
時間枠:Baseline and 12 weeks
Change in body fat percentage assessed by multifrequency bioelectrical impedance analysis under standardized measurement conditions. Unit of Measure: percentage of body mass.
Baseline and 12 weeks
Change in Body Fat mass
時間枠:Baseline and 12 weeks
Change in body fat assessed by multifrequency bioelectrical impedance analysis under standardized measurement conditions. Unit of Measure: kg
Baseline and 12 weeks
Change in Skeletal Muscle Mass
時間枠:Baseline and 12 weeks
Change in skeletal muscle mass assessed by multifrequency bioelectrical impedance analysis under standardized measurement conditions. Unit of Measure: kg
Baseline and 12 weeks
Change in Fat-Free Mass
時間枠:Baseline and 12 weeks
Change in fat-free mass assessed by multifrequency bioelectrical impedance analysis under standardized measurement conditions. Unit of Measure: kg
Baseline and 12 weeks
Change in Maximal Inspiratory Pressure
時間枠:Baseline and 12 weeks
Change in maximal inspiratory pressure measured using a digital manovacuometer. The highest acceptable and reproducible value will be recorded. Unit of Measure: cmH2O
Baseline and 12 weeks
Change in Maximal Expiratory Pressure
時間枠:Baseline and 12 weeks
Change in maximal expiratory pressure measured using a digital manovacuometer. The highest acceptable and reproducible value will be recorded. Unit of Measure: cmH2O
Baseline and 12 weeks
Training Adherence
時間枠:Throughout the 12-week intervention
Percentage of planned training sessions completed during the 12-week intervention period. Unit of Measure: percentage of planned sessions.
Throughout the 12-week intervention
Adverse Events
時間枠:Throughout the 12-week intervention
Number of adverse events and injuries recorded during the 12-week intervention period and during study assessments. Unit of Measure: number of events.
Throughout the 12-week intervention
Interindividual Variability in Maximal Oxygen Uptake Response
時間枠:Baseline and 12 weeks
Interindividual variability in maximal oxygen uptake response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: mL/kg/min
Baseline and 12 weeks
Interindividual Variability in 2,000 m Rowing Ergometer Performance Time Response
時間枠:Baseline and 12 weeks
Interindividual variability in 2,000 m rowing ergometer performance time response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: seconds
Baseline and 12 weeks
Interindividual Variability in Peak Power Output Response
時間枠:Baseline and 12 weeks
Interindividual variability in peak power output response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: watts.
Baseline and 12 weeks
Interindividual Variability in Power Output at the First Ventilatory Threshold Response
時間枠:Baseline and 12 weeks
Interindividual variability in power output at the first ventilatory threshold response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: watts
Baseline and 12 weeks
Interindividual Variability in Power Output at the Second Ventilatory Threshold Response
時間枠:Baseline and 12 weeks
Interindividual variability in power output at the second ventilatory threshold response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: watts
Baseline and 12 weeks
Interindividual Variability in Power Output at 4 mmol/L Blood Lactate Concentration Response
時間枠:Baseline and 12 weeks
Interindividual variability in power output at 4 mmol/L blood lactate concentration response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: watts.
Baseline and 12 weeks
Interindividual Variability in Body Fat Percentage Response
時間枠:Baseline and 12 weeks
Interindividual variability in body fat percentage response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: percentage of body mass
Baseline and 12 weeks
Interindividual Variability in Skeletal Muscle Mass Response
時間枠:Baseline and 12 weeks
Interindividual variability in skeletal muscle mass response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: kg
Baseline and 12 weeks
Interindividual Variability in Maximal Inspiratory Pressure Response
時間枠:Baseline and 12 weeks
Interindividual variability in maximal inspiratory pressure response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: cmH2O
Baseline and 12 weeks
Interindividual Variability in Maximal Expiratory Pressure Response
時間枠:Baseline and 12 weeks
Interindividual variability in maximal expiratory pressure response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: cmH2O
Baseline and 12 weeks
Interindividual Variability in Oxygen Uptake at the First Ventilatory Threshold Response
時間枠:Baseline and 12 weeks
Interindividual variability in oxygen uptake at the first ventilatory threshold response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: mL/kg/min
Baseline and 12 weeks
Interindividual Variability in Oxygen Uptake at the Second Ventilatory Threshold Response
時間枠:Baseline and 12 weeks
Interindividual variability in oxygen uptake at the second ventilatory threshold response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: mL/kg/min
Baseline and 12 weeks
Change in Total Fat Mass
時間枠:Baseline and 12 weeks
Change in total fat mass assessed by multifrequency bioelectrical impedance analysis under standardized measurement conditions. Unit of Measure: kg
Baseline and 12 weeks
Interindividual Variability in Total Fat Mass Response
時間枠:Baseline and 12 weeks
Interindividual variability in total fat mass response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: kg
Baseline and 12 weeks
Interindividual Variability in Fat-Free Mass Response
時間枠:Baseline and 12 weeks
Interindividual variability in fat-free mass response will be estimated using the standard deviation of individual responses. This will be calculated as the square root of the difference between the squared standard deviation of change scores in the individualized training group and the squared standard deviation of change scores in the usual training group. Unit of Measure: kg
Baseline and 12 weeks

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一般刊行物

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年6月1日

一次修了 (推定)

2026年10月1日

研究の完了 (推定)

2026年10月1日

試験登録日

最初に提出

2026年5月15日

QC基準を満たした最初の提出物

2026年5月15日

最初の投稿 (実際)

2026年5月22日

学習記録の更新

投稿された最後の更新 (実際)

2026年5月22日

QC基準を満たした最後の更新が送信されました

2026年5月15日

最終確認日

2026年5月1日

詳しくは

本研究に関する用語

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

IPD プランの説明

Individual participant data will not be shared due to the inclusion of minors, the small sample size, and the potential risk of indirect participant identification in a specific youth rowing club setting. Deidentified aggregate results may be shared in scientific publications and presentations.

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米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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