The aim of this study was to investigate the relationship of mechanical characteristics between upper and lower limbs of the same participants, when they are measured in arm cranking device and cycle ergometer respectively. A group of nine (9) male students of Physical Education (age 22.8 years ± 3.1, body mass 75.1 kg ± 12.14, height 176.6 cm ± 10.4, body mass index 23.9 kg. m-2 ± 1.8, mean ± standard deviation) participated in this study and realized five (5) short maximal sprints, with duration seven seconds each one, against increasing breaking force, with lower and upper extremities. This force ? velocity test was used to determine the theoretical values of maximal force (F0) and velocity (v0) indices of upper and lower limbs, the corresponding anaerobic maximal power (Pmax ) and its optimal braking force. A well-established inverse linear relationship between braking force and pedaling frequency (r=0.99) was found for both ergometers for each participant. The results showed that upper extremities had lower Pmax related to body mass (65.1 % of the value of lower extremities, t=5.14, p<0.05), F0 (62.5 %, t=4.9, p<0.05), optimal force with respect to F0 (95.26 %, t=2.47, p<0.05) and higher v0 (109 %, t=2.43, p<0.05). Key words: anaerobic alactic power, arm cranking, cycle ergometer, body mass, men.