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From Blueprint to Practice: An Innovative Dynamic 9-Box Grid Improves Exercise Participation and Aerobic Capacity in Graduate Students

NCT07136818 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2025-08-22

No results posted yet for this study

Summary

This study aims to develop and validate an innovative dynamic 9-square grid management model to improve aerobic capacity (AC) and physical activity participation among graduate students. The model integrates real-time exercise volume (quantified via smart wearable devices) and aerobic capacity (assessed by 12-minute run tests) into a two-dimensional grid, stratifying participants into five tiers for differentiated interventions.

Using a 2 × 3 mixed-design (feedback frequency: weekly vs. monthly; time points: baseline/mid/post-intervention), 32 healthy graduate students are randomized into two groups:

Weekly feedback (dynamic position updates + tailored optimization strategies).

Monthly feedback (position updates at monthly intervals).

Key components include:

Multimodal assessment: Objective exercise metrics (Huawei Band 6), AC (12-min run), psychological scales (Exercise Identity Scale, Self-Efficacy for Exercise Scale).

Tiered intervention: Customized strategies based on grid positioning (e.g., "Star Talent" optimization vs. "Urgent Attention" support).

Primary outcomes: Changes in AC, total exercise volume (TEV), exercise identity, and self-efficacy.

The study seeks to determine whether weekly dynamic feedback outperforms monthly feedback in sustaining behavioral change and enhancing physiological adaptation. Ethical approval was obtained from Anqing Normal University (AQNU2024110).

Conditions

  • Improving Low Exercise Engagement
  • Addressing Sedentary Behaviors
  • Enhancing Aerobic Capacity
  • Bridging the Gap Between Exercise Intention and Action

Interventions

BEHAVIORAL

Dynamic 9-Square Grid Health Management with Weekly Feedback

A dual-axis management system categorizing participants into a 3x3 grid based on aerobic capacity (12-min run test) and total exercise volume (smart-device tracked). Includes weekly personalized feedback, tiered exercise prescriptions, and goal recalibration. Arm 1 receives updates every 7 days.

BEHAVIORAL

Dynamic 9-Square Grid Health Management with Monthly Feedback

Identical grid framework as Arm 1 (aerobic capacity + exercise volume assessment), but with monthly (30-day) feedback cycles. Participants receive delayed optimization strategies and tier adjustments once per calendar month, simulating conventional health programs."

Sponsors & Collaborators

  • Hainan Normal University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-10-14
Primary Completion
2024-12-30
Completion
2025-01-10

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07136818 on ClinicalTrials.gov