The Intelligent Cardiopulmonary Rehabilitation System: A Feasibility Study

Completed

• Conditions: Cardiac Rehabilitation
• Interventions: Device: ICRS

• Registration Number: NCT04914169
• Lead Sponsor: Taipei Medical University WanFang Hospital

Brief Summary

The Intelligent Cardiopulmonary Rehabilitation System (ICRS) was developed to automatically control the resistance of pedaling in combination with the conventional stationary bike by monitoring the user's heart rate for clinical use. To test its feasibility, 8 healthy participants were recruited to complete 12 sessions (3 times per week for 4 weeks) of indoor cycling on the stationary bicycle with ICRS. Subjects were received cardiopulmonary exercise testing (CPET) before and after the biking sessions.The 60-80% of heart rate reserve (HRR) of each participant was determined according to their first CPET results. The algorithm of ICRS was designed to enable the bicycle to adjust its training intensity in accordance with the subject's 60-80% HRR which was detected by wearing a wristband heart rate monitor during cycling. With ICRS, the participants' heart rates during training were expected to fall in the 60-80% HRR, increasing their cardiopulmonary fitness after 12 sessions of indoor cycling.

Detailed Description

Not available

Study Timeline

• Study Start: 2020-04-15
• Study First Submitted: 2021-05-24
• Study First Submitted QC: 2021-05-30
• Study First Posted: 2021-06-04
• Primary Completion: 2021-07-13
• Study Completion: 2021-07-30
• Status Verified: 2021-08
• Last Update Submitted: 2021-08-03
• Last Update Posted: 2021-08-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• age of 20-50
• no regular exercise habits
• no documented cardiopulmonary disease

Exclusion Criteria

• abnormal lung function
• medications affecting exercise capacity
• hypertension
• diabetes mellitus
• recent illness including upper respiratory tract infection
• the presence of any factor that may limit ability to participate in the CPET

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Indoor cycling training	ICRS	8 subjects were asked to complete indoor cycling training, 3 times a week for 4 weeks. Each session of training consisted of 30-minute stationary biking (5 minutes of warm-up, 20 minutes of training and 5 minutes of cooldown).

Primary Outcome Measures

Name	Time	Method
Peak oxygen consumption (VO2-peak)	4 weeks	Oxygen consumption (VO2- peak) were measured during our cardiopulmonary test (with a incremental biking and a gas analyzer). The workload was increased at a ramp rate of 5-10 W/min. A cadence at 50\~70 rpm was to be maintained.

Secondary Outcome Measures

Name	Time	Method
Compliance of training during the training sessions	4 weeks	The percentage of time that a subject's heart rate falls in his or her estimated 60-80% HRR over the 12 sessions of training.
Peak workload	4 weeks	The peak workload is measured during a the cardiopulmonary exercise test with a ramped stationary biking.
Averaged workload during the training sessions	4 weeks	The averaged workload (watt) that a subject paddled on the stationary bike over the 12 sessions of training.

Trial Locations

Locations (1)

Wan Fan Hospital; 🇨🇳 Taipei, Taiwan