Table 3.

Values of the measured variables in jumps performed with different additional loads, expressed as percentages relative to jumping without an additional load (normalized to 100%). Men, n = 18

Additional load (%BW)	Jump height (%)	Force variables (%)					Time variables (%)
		IB	IA	FBA	FAA	FIM	tP	tB	tA	tT
0	100	100	100	100	100	100	100	100	100	100
10	89	99	104	102	103	100	104	113	106	106
20	80	111	107	114	108	98	96	114	110	104
30	72	117	110	122	112	95	98	119	115	107

JH – jump height, IB – force impulse during the braking phase, IA – force impulse during the acceleration phase, FBA – average force during the braking phase, FAA – average force during the acceleration phase, FIM – force of impact at landing, tP – duration of the preparatory phase, tB – duration of the braking phase, tA – duration of the acceleration phase, tT – total duration of the jump