Table 2 Descriptive statistics, group differences, and effect sizes for the total volume of resistance training, session heart rate, and fatigue indicators across the three individualized sessions

Control group (n = 23)

Experimental group (n = 23)

M

SD

(%Max HR)

M

SD

(%Max HR)

t

p

Δ

d

Heart rate (bpm) session 1

124.98

9.66

(67.4%)

124.89

17.17

(67.2%)

0.02

.982

0.10

0.01

Heart rate (bpm) session 2

127.79

11.23

(68.9%)

123.95

14.53

(66.7%)

1.00

.321

3.84

0.30

Heart rate (bpm) session 3

125.65

11.22

(67.8%)

121.19

13.20

(65.2%)

1.23

.224

4.45

0.36

M

SD

M

SD

t

p

Δ

d

Total volume (kg) session 1

6701

2047

7289

2918

-0.79

.433

-588.00

-0.23

Total volume (kg) session 2

7813

2245

8160

3328

-0.41

.681

-346.96

-0.12

Total volume (kg) session 3

8165

2446

8854

3635

-0.75

.455

-688.69

-0.22

Hooper index session 1

10.00

2.98

11.00

3.26

-1.09

.284

-1.00

-0.32

Hooper index session 2

9.78

2.92

10.04

3.07

-0.30

.769

-0.26

-0.09

Hooper index session 3

9.65

2.98

9.48

3.44

0.18

.855

0.17

0.05