ArticlePeerJ2019
Test-retest reliability of a smartphone app for measuring core stability for two dynamic exercises.
Article in PeerJ, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Smartphone-Assessed Single-Leg Deadlift Stability is Associated with Sprint Velocity in Youth Soccer Players: A Cross-Sectional Study.Journal of musculoskeletal & neuronal interactions · 2026Article
- Gender-Specific Relationships Between Ankle Mobility, Foot Strength, and Trunk Control in Futsal Players: A Cross-Sectional Study.Journal of musculoskeletal & neuronal interactions · 2025Article
- Short-term effects of lumbopelvic complex stability training in elite female road cyclists.Journal of musculoskeletal & neuronal interactions · 2022Article
- Effect of cycling exercise on lumbopelvic control performance in elite female cyclists.Journal of musculoskeletal & neuronal interactions · 2021Article
- Are Core Stability Tests Related to Single Leg Squat Performance in Active Females?International journal of environmental research and public health · 2021Article
- Observational Screening Guidelines and Smartphone Accelerometer Thresholds to Establish the Intensity of Some of the Most Popular Core Stability Exercises.Frontiers in physiology · 2021Article
- Data Quality and Reliability Assessment of Wearable EMG and IMU Sensor for Construction Activity Recognition.Sensors (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRecently, there has been growing interest in using smartphone applications to assess gait speed and quantify isometric core stability exercise intensity. The purpose of this study was to investigate the between-session reliability and minimal detectable change of a smartphone app for two dynamic exercise tests of the lumbopelvic complex.
methodsThirty-three healthy young and active students (age: 22.3 ± 5.9 years, body weight: 66.9 ± 11.3 kg, height: 167.8 ± 10.3 cm) participated in this study. Intraclass correlation coefficient (ICC), coefficient of variation (%CV), and Bland-Altman plots were used to verify the reliability of the test. The standard error of measurement (SEM) and the minimum detectable difference (MDD) were calculated for clinical applicability.
resultsThe ICCs ranged from 0.73 to 0.96, with low variation (0.9% to 4.8%) between days of assessments. The Bland-Altman plots and one-sample
conclusionThe OCTOcore app is a reliable tool to assess core stability for two dynamic exercises. A minimal change of 3.5 mm/s-2 is needed to be confident that the change is not a measurement error between two sessions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.