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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
25
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.
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
Erasme Hospital
Brussels, Belgium
Change in Lactate
mmol/l
Time frame: within 2 minutes after TR training session on day 1
change in Testosterone
nmol/l
Time frame: within 2 minutes after TR training session on day 1
change Glucocorticoid Cortisol
nmol/l
Time frame: within 2 minutes after TR training session on day 1
change in Growth Hormone
ng/ml
Time frame: within 2 minutes after TR training session on day 1
change in ph
venoust
Time frame: within 2 minutes after TR training session on day 1
change PCO2 venoust
mm Hg
Time frame: within 2 minutes after TR training session on day 1
Borg scale
Borg Rating of Perceived Exertion - Borg modified (0 = no exertion at all -10 maximal exertion)
Time frame: within 4 minutes after TR training session on day 1
Pleasure of the session scale
0 = worse 10 = better
Time frame: within 4 minutes after TR training session on day 1
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