Comparison of Exercise Intensity Prescription

NCT02351713 | Completed Phase 2

• 1 other identifier: WesternSCU
• Study Type: interventional
• Target: 42
• Locations: 0 countries
• Sites: N/A

Brief Summary

Therefore, the purpose of this study is to compare the effectiveness of two exercise training programs for improving cardiorespiratory fitness: the ACE three-zone training model (i.e., threshold based training) versus the more common ACSM recommended relative percent method (i.e., %HRR). It is hypothesized that:

1. 1.The ACE three-zone training model will elicit greater mean changes in cardiorespiratory fitness (as measured by VO2max) when compared to the relative percent method.
2. 2.Participants in the ACE three-zone training model group will be more likely to have favorable VO2max responses; while comparatively, participants in the relative percent method group would be more likely to experience a VO2max nonresponse to exercise training.

Conditions

Cardiovascular Disease

Keywords

primary prevention

Outcome Measures

Primary Outcomes (2)

• Maximal oxygen uptake (VO2max) as a measure of cardiorespiratory fitness

  12 weeks

• Estimate of 10-year Cardiovascular Disease Risk

  12 weeks

Study Arms (3)

Threshold based method

EXPERIMENTAL

Exercise Week 1 Heart rate (HR) \< first ventilatory threshold (VT1) 3 days 20 min/day Week 2 HR \< VT1 4 days 25 min/day Week 3 HR \< VT1 4 days 30 min/day Week 4 HR \< VT1 5 days 30 min/day Week 5-6 HR ≥ VT1 to \< second ventilatory threshold (VT2) 5 days 30 min/day Weeks 7-8 HR ≥ VT1 to \< VT2 5 days 30 min/day Weeks 9-12 HR ≥ VT2 5 days 30 min/day

Other: Exercise

Relative percent method

EXPERIMENTAL

Exercise Week 1 40-45% heart rate reserve 3 days 20 min/day Week 2 40-45% heart rate reserve 4 days 25 min/day Week 3 40-45% heart rate reserve 4 days 30 min/day Week 4 40-45% heart rate reserve 5 days 30 min/day Week 5-6 50-55% heart rate reserve 5 days 30 min/day Weeks 7-8 50-55% heart rate reserve 5 days 30min/day Weeks 9-12 60-65% heart rate reserve 5 days 30 min/day

Other: Exercise

Control

NO INTERVENTION

Non-exercise control group

Interventions

Exercise OTHER

Continuous aerobic exercise prescribed according to two exercise intensity methods: threshold based method (i.e., ventilatory threshold) and relative percent method (i.e., heart rate reserve).

Relative percent method; Threshold based method

Eligibility Criteria

• Age: 18 Years - 55 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

Sponsors & Collaborators

• Western Colorado University: lead

Related Publications (1)

• Wolpern AE, Burgos DJ, Janot JM, Dalleck LC. Is a threshold-based model a superior method to the relative percent concept for establishing individual exercise intensity? a randomized controlled trial. BMC Sports Sci Med Rehabil. 2015 Jul 4;7:16. doi: 10.1186/s13102-015-0011-z. eCollection 2015.

  PMID: 26146564 DERIVED

MeSH Terms

Conditions

Cardiovascular Diseases

Interventions

Exercise

Intervention Hierarchy (Ancestors)

Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, CARE PROVIDER
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: January 22, 2015
• First Posted: January 30, 2015
• Study Start: May 1, 2014
• Primary Completion: January 1, 2015
• Study Completion: January 1, 2015
• Last Updated: February 3, 2015

Record last verified: 2015-01