BFR Training on a Bike to Augment RC Strength, Leg Strength, and VO2 Peak

Can BFR Training on a Bike Augment RC Strength, Leg Strength, and VO2 Peak

This study will investigate if subjects who bike at 40% of heart rate reserve (HRR) with blood flow restriction (BFR) applied to bilateral thighs for 10 minutes (at 80% limb occlusion pressure) will experience greater gains in 10 rep max for dominant lower extremity leg press, greater gains in rotator cuff strength (hand held dynamometer testing for supraspinatus and external rotators) and greater gains in VO2 peak.

Study Overview

• Status: Recruiting
• Conditions: Can BFR Cycling Augment Strength and VO2peak
• Intervention / Treatment: Other: BFR cycling; Other: Cycling without BFR

Detailed Description

This study will randomize healthy adult subjects to one of two groups: a BFR biking group that performs 10 min of cycling at 40% heart rate reserve (HRR) with bilateral occlusion applied to the proximal thighs (80% LOP) or to a non-biking BFR group perform 10 min of cycling at 40% HRR. After each cycling session subjects will perform 3x15 of the scaption exercise and 3x15 sidelying external rotation with their dominant upper extremity. They will initially start training the shoulder at 30% of 1RM (estimated from an equation formula) for the first 2 weeks followed by increasing training load by 1lbs each exercise every 2 weeks. The training program will last 6 weeks (3x week for 6 weeks, total of 18 sessions).

Pretest and posttests will include: VO2 peak testing on a cycle using Cosmed metabolic cart, hand held dynamometry to measure strength of the supraspinatus and external rotators of the shoulder using traditional manual muscle test positions, and on a separate day 10RM testing on a leg press for the dominant lower extremity.

• Study Type: Interventional
• Enrollment (Anticipated): 50
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Jason Brumitt, PhD; Phone Number: 5035542461; Email: jbrumitt@georgefox.edu

Study Locations

• United States
  • Oregon
    • Newberg, Oregon, United States, 97132
      • Recruiting
      • College of Physical Therapy / George Fox University
      • Contact: Jason Brumitt, PhD; Phone Number: 503-554-2461; Email: jbrumitt@georgefox.edu
    • Newberg, Oregon, United States, 97132
      • Recruiting
      • George Fox University School of Physical Therapy
      • Contact: Jason Brumitt, PhD; Phone Number: 5035542461; Email: jbrumitt@georgefox.edu
      • Contact: Jason Brumitt, PhD; Phone Number: 503-554-2461; Email: jbrumitt@georgefox.edu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria: healthy adults (18 yrs of age and older) -

Exclusion Criteria: no current musculoskeletal symptoms/injuries; no prior lower extremity or shoulder/upper extremity surgery (dominant) during the prior year; no contraindications to BFR training

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Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: BFR cycling; This group will perform cycling with BFR applied bilaterally at 80% LOP for 10 min and cycling at 40% HRR. Next they will perform 3x15 of the scaption and sidelying external rotation exercises. These will initially be performed at 30% 1RM; every 2 weeks load increased by 1lbs.	Other: BFR cycling; Cycling with BFR followed by shoulder exercises
Active Comparator: Cycling without BFR; This group will perform cycling and the same shoulder exercises using the same training parameters; however, BFR will not be applied.	Other: Cycling without BFR; Cycling without BFR followed by shoulder exercises

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
VO2peak	Pretest/posttest measures of VO2peak performance on the bicycle using Cosmed Metabolic Cart	6 weeks
Shoulder Strength	Using a Hand Held Dynamometer; shoulder strength will be measured pretest/posttest for teh supraspinatus and the shoulder external rotators (dominant UE)	6 weeks
10 RM unilateral leg press for the dominant lower extremity	Test 10 RM strength on the leg press for the dominant LE/ pretest/posttest	6 weeks

Collaborators and Investigators

• Sponsor: George Fox University
• Investigators: Principal Investigator: Jason Brumitt, PhD, George Fox University

Study record dates

Study Major Dates

• Study Start (Actual): April 10, 2022
• Primary Completion (Anticipated): January 30, 2023
• Study Completion (Anticipated): January 30, 2023

Study Registration Dates

• First Submitted: April 19, 2022
• First Submitted That Met QC Criteria: April 22, 2022
• First Posted (Actual): April 25, 2022

Study Record Updates

• Last Update Posted (Actual): April 25, 2022
• Last Update Submitted That Met QC Criteria: April 22, 2022
• Last Verified: April 1, 2022

More Information

Terms related to this study

• Other Study ID Numbers: George Fox College of PT

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No