IJCS | Volume 31, Nº4, July / August 2018

396 Macedo et al. Periodized model for prescribed exercises Int J Cardiovasc Sci. 2018;31(4)393-404 Original Article Training protocols All subjects of both groups carried out AT and RT for 12 weeks, 3 sessions per week (36 sessions) on non- consecutive days. The AT was carried out on a treadmill (Movement models RT250, LX160 and LX150), while, in the RT, ankle weights, dumbbells, and a muscle toning machine (MEGAMOVEMENT II station) were used. Resistance protocol The RTwas made in upper and lower limbs, being two sessions for lower limbs and one session for upper limbs. Hence, 24 sessions of AT were carried out on a treadmill and with lower resistance exercise (LRE), whereas, in the other 12 sessions, the treadmill and upper resistance exercise (URE) were used. Thus, every two consecutive sessions of treadmill + LRE were followed by one of treadmill + URE. The exercise selection for RT was similar in the two groups and included: leg extension, leg curl, hip flexion, knee flexion, hip abduction and adduction, ankles planti-flexion and hip flexion associated with knee flexion, elbow flexion and extension, shoulder abduction, scapular adduction, shoulders anterior flexion, pendulum exercise for the decoaptation of the shoulder joint, bench press, lat pulldown, biceps and triceps curl and pulley. The two groups carried out three sets of 15 repetitions of each exercise and the intensity of the RT varied from 30% to 50% of the loads obtained in the 1RM test. The difference between the two groups was that, in the PG, the intensity was increased progressively in each microcycle (four weeks) and, in the NPG, the intensity was increased according to patient’s resilience (Table 1). According to the ACSM, 10 the rest intervals between sets were of 1 to 2 minutes. Aerobic protocol The intensity of the AT on the electric treadmill for the two groups was defined from the result obtained in the CPT. The heart rate (HR) corresponding to the VT1 was defined as the lower limit training (HRVT1), whereas the HR corresponding to the VT2 was defined as the upper limit training (HRVT2). The interval betweenHRVT1 and HRVT2 corresponded to the ideal training intensity for each patient, known as the target zone (TZ). 3 The two groups began the AT program with 25 minutes of activity divided into 5 minutes of warm-up, Table 1 - Resistance and aerobic training programs for NPG and PG Training periods Sets Repetitions Load (%1RM) Resistance training NPG Weeks 1 - 12 3 15 30-50% GP Weeks 1 - 4 3 15 30% Weeks 5 - 8 3 15 40% Weeks 9 - 12 3 15 50% Endurance training Intensity NPG Weeks 1 - 12 HRVT1 to HRVT2 GP Weeks 1 - 6 HRVT1 Weeks 7 - 12 Interval training (2 min HVT1+AHR, 1 min HRVT2) PG: periodized exercise training group; NPG: non-periodized exercise training group; HRVT1: heart rate ventilatory threshold 1; HRVT2: heart rate ventilatory threshold 2; AHR: average heart rate. 15 minutes of training in the TZ and the 5 final minutes of cool down. After every three sessions, 5 extra minutes of training within the TZ were added. From the 10 th to the 36 th session, the total work time was of 40 minutes, 30 of which were within the TZ. The 5 minutes of warm up and cool down each were maintained throughout the 36 sessions. The NPG trained along the 36 sessions within the TZ range proposed prescribed by HR (corresponding to the VT1 and VT2 of the CPT) without a predict load progression. The patient chose the training intensity, provided it was within the TZ (Figure 2A). The AT of PG was divided in two microcycles of 18 sessions. First the average of HR (AHR) was determined betweenHRVT1 andHRVT2, obtained from the formula: AHR = (HRVT2-HRVT1)/2. The training intensity until the 18th session was determined by HRVT1 + AHR. This was designated as target zone 1 (TZ1). The second target zone (TZ2) was determined by the interval between HRVT1 + AHR and HRVT2. For instance, if the patient displayed HR in VT1 of 100 bpm and 130 bpm in VT2,