Validity of Wearable Sensor for Jump Height (Jump)

Evaluatıon of the Valıdıty of a Wearable Motıon Analysıs Sensor in Assessıng Jump Heıght

This study aims to evaluate the concurrent validity of a wearable motion sensor (BTS G-sensor) in measuring countermovement jump (CMJ) height. Healthy female volunteers between 18 and 35 years of age will perform CMJ tests. Jump height will be measured simultaneously using the BTS G-sensor and the My Jump smartphone application, which has previously demonstrated validity and reliability. The study will assess the level of agreement between the two measurement methods.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers; Physical Fitness (G11.427.410.698)
• Intervention / Treatment: Device: BTS G-sensor; Device: BTS G-sensor

Detailed Description

Vertical jump height is widely used as an indicator of lower limb strength and functional performance. Force platforms are the gold standard for jump height measurement but are expensive and not always practical. Wearable motion sensors and smartphone applications have been developed as low-cost and portable alternatives.

This observational study is designed to examine the concurrent validity of the BTS G-sensor, a wearable inertial measurement unit, for measuring countermovement jump (CMJ) height. Measurements obtained from the BTS G-sensor will be compared with those from the My Jump smartphone application, a validated reference tool.

Healthy female volunteers aged 18-35 years will perform countermovement jumps after a standardized warm-up. Each participant's jump height will be simultaneously recorded by both methods. Data will be analyzed using correlation and agreement analyses to determine the level of consistency between the two methods.

This is an observational validation study. Both the BTS G-sensor and the My Jump application were used simultaneously for measurement purposes only. No interventional procedure or assignment was applied to participants.

Clarification on Study Type:

This is an observational validation study. Both the BTS G-sensor and the My Jump smartphone application were used simultaneously for measurement purposes only. No participant assignment or interventional procedure was applied.

• Study Type: Observational
• Enrollment (Actual): 29

Contacts and Locations

Study Locations

• Turkey (Türkiye)
  • Ankara, Turkey (Türkiye), 06520
    • Yuksek Ihtisas University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

Healthy female volunteers between the ages of 18 and 35 years were recruited from Ankara Yildirim Beyazıt University. Participants had no recent orthopedic injuries, no neurological conditions, and were not using medications that could affect balance.

Description

• Inclusion Criteria:Female volunteers aged 18-35 years
• No history of orthopedic injury in the past 6 months
• No neurological disorders
• Not taking medications affecting balance
• Exclusion Criteria: Body Mass Index (BMI) > 25
• History of orthopedic surgery
• Impaired lower extremity joint range of motion
• Inability to complete the test protocol
• Measurement errors or missing data

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Healthy Volunteers; Healthy female participants aged 18-35 years performed countermovement jumps. Jump height was measured simultaneously using the BTS G-sensor and the My Jump application.	Device: BTS G-sensor; A wearable motion analysis sensor used to assess countermovement jump height.; Other Names: my jump lab; Device: BTS G-sensor; A wearable inertial measurement unit (IMU) used to assess countermovement jump (CMJ) height.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Jump Height Measured with BTS G-sensor Compared to My Jump Application	Countermovement jump (CMJ) height measured simultaneously with the BTS G-sensor and the My Jump smartphone application. Agreement between the two methods will be analyzed using correlation and Bland-Altman plots.	single testing session, Day 1
Jump Height measured with BTS G-sensor compared to My Jump application	The countermovement jump (CMJ) height will be measured simultaneously using the BTS G-sensor and the My Jump smartphone application. Correlation and agreement between the two methods will be assessed.	single testing session, Day 1

Collaborators and Investigators

• Sponsor: Busra Kalkan Balak

Publications and helpful links

Helpful Links

• Ankara Yildirim Beyazıt University Faculty of Health Sciences

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2025
• Primary Completion (Actual): June 30, 2025
• Study Completion (Actual): June 30, 2025

Study Registration Dates

• First Submitted: September 29, 2025
• First Submitted That Met QC Criteria: December 14, 2025
• First Posted (Actual): December 29, 2025

Study Record Updates

• Last Update Posted (Actual): December 29, 2025
• Last Update Submitted That Met QC Criteria: December 14, 2025
• Last Verified: September 1, 2025

More Information

Terms related to this study

• Keywords: validity; physical fitness; wearable electronic devices; jumping
• Other Study ID Numbers: AnkaraYBU-02-1155; 02-1155 (Other Identifier: Ankara Yıldırım Beyazıt University Faculty of Health Sciences Ethics Committee)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED
• IPD Plan Description: It is not yet determined whether individual participant data (IPD) will be shared. Decisions will depend on future institutional policies and publication requirements.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No