A utilização de um novo sistema de coleta de dados (Sistema Impulse) para análise cinemática em aparelhos convencionais de musculação.

Abstract

The aim of this study was to compare the time and displacement of vertical weight in a workout equipaments between a new data collection system (Impulse System) and Kinovea Experimental Version (KEV) software. Ten male volunteers (age = 26.3 ± 2.4, height = 179.70 ± 4.6 cm, body mass = 85.4 ± 14.5 kg), healthy, physically active at the time of data collection and with experience of at least one year of strength training, performed exercises in two equipaments of conventional use in the gyn, the leg extension and the lat pulldown. Two cadences were used in the research, 2s (Cad1) and 0.66s (Cad2), per phase of the movement. Volunteers started the procedure by doing a familiarization series, which was not used in the analyzes, with 10 repetitions and then without rest pre-determined, did a series of 8 repetitions. After 1 minute of passive rest the volunteer repeated the procedure, but with a lower cadence (Cad2). At the end, the protocol was repeated on the second equipaments. For most of the results in the amplitude variable, a significant difference (p <0.05) was observed between the two data collection systems. On the other hand, the results of the comparative time for each phase of the movement, a significant difference (p <0.05) was observed only in the eccentric phase of the lat pulldown Cad2 (p = 0.043). There was a strong correlation in all analyzes between KEV and SI, where the analyzes of time and amplitude were: r = 0.997, r = 0.997 in the leg extension; and r = 0.996, r = 0.997, for lat pulldown.The conclusion of this study is that the Impulse System has the autonomy to perform kinematic analyzes with precision.