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The Effect of the 3/7 vs 3X9 Method in Resistance Training on Metabolic Stress in Cardiac Rehabilitation

Acute Effects of the 3/7 Method and 3X9 Method in Resistance Training on Testosterone, Glucocorticoid Cortisol, Growth Hormone and Lactate in Heart Failure and Coronary Artery Disease During Cardiac Rehabilitation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05391620
Enrollment
25
Registered
2022-05-26
Start date
2022-02-22
Completion date
2022-10-25
Last updated
2024-02-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease, Heart Failure, Resistance Training

Keywords

Cardiac rehabilition, exercise therapy, metabolic stress

Brief summary

The study proposes to measure the effect of resitance training (RT) (3/7 method) on biological markers of muscle hypertrophy in a cardiac population. 3/7 method consisting of five sets of an increasing number of repetitions (3 to 7) during successive sets and brief inter-set intervals (15 s). This method is compare to 3X9 method, 3 series of 9 repetitions with inter-set (1min).The training exercise consisted of contraction on machine (leg press, triceps press, leg curl, traction, leg extension) with load of \ 70% of one repetition maximal (1RM). Before these trainings all subject perform HIIT on bicycles (2 min high intensity (80% Wmax) and 2 min low intensity (50% Wmax) during 30 minutes. The investigators collect blood sample before exercice, after HIIT and after RT. It is randomized cross-over study.

Detailed description

The subjects come on two different days minimum 2 days and maximum 10 days between the two tests. They were instructed to avoid exercise the day before they participated in the study. The investigators collect blood 2 minutes after endurance training (HIIT) and 2 min after RT training.

Interventions

OTHERCardiac rehabilitation with 3/7 method

HIIT ( 2 min 80% wmax: 2 min 50% wmax) during 30 minutes 3/7 method 3 rep (15 sec of rest), 4 rep (15 sec), 5 rep (15 sec), 6 rep (15 sec), 7 rep. (total volume : 25 repetitions) at 70 of 1 repetition Leg press, Dips Press, Leg curl, Traction and Leg extension. 1 minute between each machine is planned.

OTHERCardiac rehabilitation with 3X9 method

HIIT ( 2 min 80% wmax: 2 min 50% wmax) during 30 minutes 3X9 method 9 rep 1 minute of rest, 9 rep (1 min) and 9 rep (total volume : 27 repetitions) at 70 of 1 repetition Leg press, Dips Press, Leg curl, Traction and Leg extension. 1 minute between each machine is planned

Sponsors

Université Libre de Bruxelles
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Clinical Coronary artery diseases * Heart failure with reduced ejection fraction

Exclusion criteria

* angina * acutely decompensated heart failure * electrocardiographic evidence of ischemia * significant valvular disease * orthopedic/neurologic disorders that limited exercise

Design outcomes

Primary

MeasureTime frameDescription
Change in Lactatewithin 2 minutes after TR training session on day 1mmol/l
change in Testosteronewithin 2 minutes after TR training session on day 1nmol/l
change Glucocorticoid Cortisolwithin 2 minutes after TR training session on day 1nmol/l
change in phwithin 2 minutes after TR training session on day 1venoust
change PCO2 venoustwithin 2 minutes after TR training session on day 1mm Hg
change in Growth Hormonewithin 2 minutes after TR training session on day 1ng/ml

Secondary

MeasureTime frameDescription
Borg scalewithin 4 minutes after TR training session on day 1Borg Rating of Perceived Exertion - Borg modified (0 = no exertion at all -10 maximal exertion)
Pleasure of the session scalewithin 4 minutes after TR training session on day 10 = worse 10 = better

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026