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Motivating Activity Through Text Communications - Helping Adults Increase Movement (MATCH AIM)

2026年7月30日 更新者：David Conroy、University of Michigan

Motivating Activity Through Text - Comparing Human and AI Messages (MATCH AIM) Trial

The goal of this clinical trial is to compare the effect of different types of text messages on physical activity levels of middle-aged and older adults and to determine whether these messages are effective in adults age 40 and older who are engaging in less than 90 minutes per week of moderate or higher intensity physical activity. The main questions it aims to answer are:

  • Which types of motivational messages show the greatest effects on changes in daily step counts in a 3-month precision text messaging intervention?
  • What are the effects of personalized text messages on automatic affective evaluations, habit strength (experienced automaticity), exercise identity, working memory capacity, and processing speed?

Participants will:

  • Wear a Fitbit activity tracker continuously for 3 months and are encouraged to continue wearing it through 6 months.
  • Wear an activPAL activity monitor on their thigh for 7-day assessment periods at the beginning of the study, at 3 months, and at 6 months.
  • Complete 3 cognitive assessments ("brain games") per day on their smartphone during the 7-day assessment periods at baseline, 3 months, and 6 months.
  • Be asked to set goals to increase their daily steps over the first 3 months of the study.
  • Receive up to 4 motivational text messages per day for 3 months to encourage physical activity.
  • Keep study-related apps (Fitbit app, AIM app, MetricWire app) open in the background on their smartphone.
  • Complete questionnaires at the beginning of the study, at 3 months, and at 6 months

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

150

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

  • アメリカ
    • Michigan
      • Ann Arbor、Michigan、アメリカ、48109
        • 募集
        • University of Michigan
        • 主任研究者：
          • David E Conroy, PhD
        • コンタクト：
        • コンタクト：

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

  • 大人
  • 高齢者

健康ボランティアの受け入れ

はい

説明

Inclusion Criteria:

  • Be 40 years of age or older
  • Own a smartphone running an Android or iOS operating system
  • Have proficiency with the English language
  • Be capable of providing informed consent
  • Be able to perform moderate physical activity without restrictions
  • Be willing to complete the entire 6-month protocol
  • Be willing to establish a 12-hour window - beginning no later than 9:45 am and ending no later than 9:45 pm - for receiving text messages.

Exclusion Criteria:

  • Residing outside of the continental United States
  • Self-reporting 90 minutes or more of moderate-to-vigorous intensity physical activity per week
  • contraindications to normal physical activity as identified on the Physical Activity Readiness Questionnaire (PAR-Q)
  • Mobility restrictions that interfere with unassisted physical activity
  • Being pregnant or planning to become pregnant during the study
  • Planning to undergo surgery during the course of the study protocol
  • Having a prior diagnosis of Alzheimer's disease or a related dementia
  • Evidence of mild cognitive impairment as indicated by a mini-Montreal Cognitive Assessment (MoCA) test score of 12 or higher
  • Concurrent participation in another study involving weight loss or physical activity
  • Failure to respond to at least 85% of Ecological Momentary Assessment (EMA) prompts during the 7-day qualification phase.

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：4倍

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ：Validated library of text messages
Participants in this arm will receive motivational text messages that have been written and used in previous studies.
行動：Text Messaging Intervention

Participants will receive up to 4 motivational text messages per day during a self-selected 12-hour window. These messages focus on two content areas: 1) Move more, and 2) sit less. Delivery of these messages occurs in two phases:

  1. Random AIM (month 1): Messages are sent at random times within the participant's window to collect baseline data on their behavioral responses.
  2. Precision AIM (months 2 and 3): Messages are sent at optimized times based on person-specific models that are created from the individual's previous responses to text messages from month 1.
実験的：Newly created text messages
Participants in this arm will receive motivational text messages that have not been used in previous studies.
行動：Text Messaging Intervention

Participants will receive up to 4 motivational text messages per day during a self-selected 12-hour window. These messages focus on two content areas: 1) Move more, and 2) sit less. Delivery of these messages occurs in two phases:

  1. Random AIM (month 1): Messages are sent at random times within the participant's window to collect baseline data on their behavioral responses.
  2. Precision AIM (months 2 and 3): Messages are sent at optimized times based on person-specific models that are created from the individual's previous responses to text messages from month 1.

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
Daily Step Count
時間枠：The activPAL is worn on the thigh for a 7-day assessment period before the intervention begins (baseline), after 3 months of intervention, and then again 3 months after the intervention is complete. The total time frame is 6 months.
The primary outcome measure is the average daily step count, which is assessed using a blinded, research-grade activPAL activity monitor, worn on the thigh for a 7-day assessment period.
The activPAL is worn on the thigh for a 7-day assessment period before the intervention begins (baseline), after 3 months of intervention, and then again 3 months after the intervention is complete. The total time frame is 6 months.

二次結果の測定

結果測定
メジャーの説明
時間枠
Mechanisms of Behavior Change for Adherence: Habit Strength
時間枠：These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Habit Strength will be assessed using the Behavioral Automaticity Index from the Self-Report Habit Index to measure how automatic the exercise behavior has become. Scores are calculated as the average item responses and range from 1 to 7 with higher scores reflecting greater experienced automaticity (i.e., stronger habits).
These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Mechanisms of Behavior Change for Adherence: Exercise Identity (Reflective)
時間枠：These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Exercise Identity will be assessed using the Exercise Identity Scale to see how much participants view themselves as "exercisers". Scores are based on the average item response and range from 1 to 7 with higher scores representing a stronger exercise identity.
These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Mechanisms of Behavior Change for Adherence: Automatic Affective Evaluations
時間枠：These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Automatic Affective Evaluations will be assessed using a Single-Category Implicit Association Test (SCIAT) to assess non-conscious attitudes toward physical activity. Scores are standardized mean differences of response times between blocks of trials where physical activity is paired with unpleasant attributes and blocks of trials where physical activity is paired with pleasant attributes. Higher scores indicate more favorable automatic affective evaluations of physical activity.
These secondary outcomes are collected at the same major time points as the primary outcome: baseline (month 0), post-intervention (month 3), and follow-up (month 6).
Ambulatory Cognitive Function: Processing Speed
時間枠：These secondary outcomes are collected at the same major time points as the primary outcome: Baseline (month 0), post-intervention (month 3), and follow-up (6 month).
Processing Speed will be assessed with the Mobile Monitoring of Cognitive Change (M2C2) Symbol Search Task. Scores are based on response times for accurate trials so there is no fixed range for scores. Shorter response times indicate faster (better) processing speed; longer response times indicate slower (worse) processing speed.
These secondary outcomes are collected at the same major time points as the primary outcome: Baseline (month 0), post-intervention (month 3), and follow-up (6 month).
Ambulatory Cognitive Function: Working Memory Capacity
時間枠：These secondary outcomes are collected at the same major time points as the primary outcome: Baseline (month 0), post-intervention (month 3), and follow-up (6 month).
Working Memory Capacity will be measured using the M2C2 Grid Memory Task. Scores are based on response accuracy measured as a Euclidean distance score. Shorter distance scores indicate more working memory capacity; longer distance scores indicate less working memory capacity.
These secondary outcomes are collected at the same major time points as the primary outcome: Baseline (month 0), post-intervention (month 3), and follow-up (6 month).

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

University of Michigan

協力者

National Institute on Aging (NIA)

捜査官

  • 主任研究者：David E Conroy, PhD、University of Michigan

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 (実際)

2026年5月11日

一次修了 (推定)

2027年5月3日

研究の完了 (推定)

2027年8月2日

試験登録日

最初に提出

2026年5月4日

QC基準を満たした最初の提出物

2026年5月11日

最初の投稿 (実際)

2026年5月18日

学習記録の更新

投稿された最後の更新 (実際)

2026年7月31日

QC基準を満たした最後の更新が送信されました

2026年7月30日

最終確認日

2026年7月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • HUM00262651
  • P30AG086637 (米国 NIH グラント/契約)

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?

はい

IPD プランの説明

De-identified individual participant data (IPD) underlying the results reported in primary and secondary publications will be shared. This includes baseline behavioral metrics, coarsened demographics, post-intervention outcomes, and follow-up data. To protect participant privacy, all data will be stripped of direct identifiers, ages will be binned into 5-to-10-year bands, geographic markers restricted to broad regions, and timeline dates converted to "days since randomization." Raw, free-text qualitative journal entries will be suppressed entirely due to re-identification risks.

IPD 共有時間枠

Data and supporting documentation will be made available concurrently with the primary peer-reviewed publication of the trial results and will remain accessible for 5 years post-publication. This immediate availability complies with the NIH Data Management and Sharing Policy.

IPD 共有アクセス基準

Access is restricted to qualified external researchers affiliated with an accredited academic or non-profit research institution. Applicants must submit a formal, written research proposal detailing a sound scientific hypothesis and an analytical plan, alongside documentation of local IRB approval/waiver. Approved requestors and their sponsoring institutions must sign a legally binding Data Use Agreement (DUA) that strictly prohibits any re-identification or external data-linking attempts.

IPD 共有サポート情報タイプ

  • STUDY_PROTOCOL
  • SAP
  • ICF

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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

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