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. 2021 Apr 21;9:e10537. doi: 10.7717/peerj.10537

Table 4. Time point ES in anthropometric and performance variables in response to 8 weeks training intervention.

Variable Group ES (95% Cl)
Pre to mid Mid to post Pre to post
Chest circumference (cm) RT2 0.53 [−0.28 to 1.35]b 0.24 [−0.56 to 1.04]b 0.77 [−0.06 to 1.6]c
RT4 0.58 [−0.2 to 1.37]b 0.14 [−0.63 to 0.91]a 0.75 [−0.04 to 1.55]c
CG 0.11 [−0.77 to 0.98] −0.04 [−0.92 to 0.84] 0.07 [−0.81 to 0.95]
Thigh circumference (cm) RT2 0.66 [−0.13 to 1.45]c 0.03 [−0.74 to 0.8]a 0.72 [−0.07 to 1.52]c
RT4 0.21 [−0.59 to 1.01]b 0.02 [−0.78 to 0.82]a 0.22 [−0.58 to 1.02]b
CG −0.22 [−1.1 to 0.65] −0.08 [−0.95 to 0.8] −0.38 [−1.26 to 0.51]
Arm circumference (cm) RT2 0.36 [−0.42 to 1.13]b 0.21 [−0.56 to 0.99]b 0.62 [−0.17 to 1.41]c
RT4 0.14 [−0.66 to 0.94]a 0.09 [−0.71 to 0.89]a 0.06 [−0.74 to 0.86]a
CG −0.34 [−1.22 to 0.55] −0.32 [−1.2 to 0.56] −0.56 [−1.45 to 0.33]
1RM bench press (kg) RT2 0.96 [0−.15 to 1.77]c 0.13 [−0.64 to 0.9]a 0.89 [−0.08 to 1.7]c
RT4 0.6 [−0.22 to 1.42]b 0.47 [−0.34 to 1.28]b 1.07 [−0.22 to 1.93]c
CG −0.11 [−0.99 to 0.76] 0.18 [−0.7 to 1.06] 0.06 [−0.82 to 0.93]
1RM leg press (kg) RT2 1.35 [0.5 to 2.2]d 0.96 [0.15 to 1.77]c 2.33 [1.34 to 3.33]e
RT4 0.96 [0.12 to 1.81]c 0.52 [0.29 to 1.34]b 1.6 [0.68 to 2.52]d
CG 0.03 [−0.85 to 0.91] −0.02 [−0.89 to 0.86] 0.01 [−0.86 to 0.89]
1RM arm curl (kg) RT2 1.17 [0.22 to 2.12]c 0.11 [−0.66 to 0.87]a 0.84 [−0.04 to 1.64]c
RT4 1.21 [0.34 to 2.08]d 0.18 [−0.62 to 0.98]a 1.15 [0.29 to 2.02]c
CG 0.0 [−0.88 to 0.88] 0.27 [−0.61 to 1.15] 0.25 [−0.63 to 1.13]
Bench press endurance (repetitions) RT2 0.11 [−0.66 to 0.88]a 0.0 [−0.77 to 0.77]a 0.1 [−0.66 to 0.87]a
RT4 0.51 [−0.31 to 1.32]b 0.18 [−0.62 to 0.98]a 0.79 [−0.04 to 1.62]c
CG 0.09 [−0.79 to 0.96] 0.07 [−0.81 to 0.95] 0.17 [−0.71 to 1.05]
Leg press endurance (repetitions) RT2 0.57 [−0.21 to 1.35]b 0.48 [−0.3 to 1.26]b 0.9 [−0.09 to 1.71]c
RT4 1.51 [0.61 to 2.42]d 0.03 [−0.77 to 0.83]a 1.33 [0.45 to 2.22]d
CG 0.13 [−0.75 to 1] −0.29 [−1.17 to 0.59] −0.23 [−1.11 to 0.65]
Countermovement jump (cm) RT2 0.88 [0.08 to 1.69]c 0.44 [−0.33 to 1.22]b 1.59 [0.71 to 2.48]d
RT4 0.91 [0.07 to 1.75]c 0.25 [−0.55 to 1.06]b 0.95 [0.11 to 1.8]c
CG 0.1 [−0.78 to 0.98] 0.02 [−0.85 to 0.9] 0.07 [−0.81 to 0.95]
Medicine ball throw (m) RT2 0.3 [−0.47 to 1.07]b 0.19 [−0.58 to 0.96]a 0.49 [−0.29 to 1.27]b
RT4 0.25 [−0.55 to 1.05]b 0.2 [−0.6 to 1.01]a 0.45 [−0.36 to 1.26]b
CG 0.03 [−0.85 to 0.9] 0.0 [−0.88 to 0.88] 0.02 [−0.85 to 0.9]

Notes:

a

Trivial.

b

Small.

c

Moderate.

d

Large.

e

Very large ES.

RT2: 2 times per week resistance training, RT4: 4 times per week resistance training, CG: control group.