. 2021 May 3;18(9):4874. doi: 10.3390/ijerph18094874

Table 1.

Performance, muscle morphology, and electromechanical delay PRE and POST the high volume (HV) and the high intensity (HI) bench press protocol. IBPF = isometric bench press force test; pRFD20 = peak rate of force development; PEC MT = muscle thickness of pectoral muscle; TR MT = muscle thickness of triceps muscle; PEC EMD = electromechanical delay of pectoral muscle; TR EMD = electromechanical delay of triceps muscle.

Assessment	Time Point	HV (Mean ± SD)	HI (Mean ± SD)	Trial Difference
IBPF (N)	PRE	439.3 ± 108.4	446.5 ± 78.3	F = 1.951 p = 0.196 η² = 0.178
IBPF (N)	POST	383.4 ± 102.1	410.8 ± 89.2	F = 1.951 p = 0.196 η² = 0.178
pRFD (N s⁻¹)	PRE	3297.0 ± 1205.6	3644.5 ± 1197.0	F = 0.213 p = 0.655 η² = 0.023
pRFD (N s⁻¹)	POST	3102.5 ± 1115.2	3307.5 ± 929.2	F = 0.213 p = 0.655 η² = 0.023
PEC MT (mm)	PRE	13.2 ± 2.7	13.2 ± 2.2	F = 17.951 p = 0.002 η² = 0.666
PEC MT (mm)	POST	16.3 ± 3.5	13.7 ± 2.1	F = 17.951 p = 0.002 η² = 0.666
TR MT (mm)	PRE	17.2 ± 2.4	17.1 ± 2.7	F = 18.632 p < 0.001 η² = 0.791
TR MT (mm)	POST	20.3 ± 3.1	17.1 ± 2.2	F = 18.632 p < 0.001 η² = 0.791
PEC EMD (ms)	PRE	116.4 ± 26.0	116.9 ± 39.5	F = 5.654 p = 0.039 η² = 0.361
PEC EMD (ms)	POST	143.8 ± 26.6	118.5 ± 31.5	F = 5.654 p = 0.039 η² = 0.361
TR EMD (ms)	PRE	118.7 ± 29.0	111.2 ± 22.1	F = 0.036 p = 0.854 η² = 0.004
TR EMD (ms)	POST	131.5 ± 16.1	125.5 ± 23.8	F = 0.036 p = 0.854 η² = 0.004