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. 2014 Dec 30:44:19-28.
doi: 10.2478/hukin-2014-0107. eCollection 2014 Dec 9.

Training effectiveness of the inertial training and measurement system

Mariusz Naczk  1 , Wioletta Brzenczek-Owczarzak  1 , Jarosław Arlet  1 , Alicja Naczk  1 , Zdzisław Adach  1
Affiliations

Training effectiveness of the inertial training and measurement system

Mariusz Naczk et al. J Hum Kinet. .

Abstract

The purpose of this study was to evaluate the efficacy of inertial training with different external loads using a new original device - the Inertial Training and Measurement System (ITMS). Forty-six physical education male students were tested. The participants were randomly divided into three training groups and a control group (C group). The training groups performed inertial training with three different loads three times weekly for four weeks. The T0 group used only the mass of the ITMS flywheel (19.4 kg), the T5 and T10 groups had an additional 5 and 10 kg on the flywheel, respectively. Each training session included three exercise sets involving the shoulder joint adductors. Before and after training, the maximal torque and power were measured on an isokinetic dynamometer during adduction of the shoulder joint. Simultaneously, the electromyography activity of the pectoralis major muscle was recorded. Results of the study indicate that ITMS training induced a significant increase in maximal muscle torque in the T0, T5, T10 groups (15.5%, 13.0%, and 14.0%, respectively). Moreover, ITMS training caused a significant increase in power in the T0, T5, T10 groups (16.6%, 19.5%, and 14.5%, respectively). The percentage changes in torque and power did not significantly differ between training groups. Electromyography activity of the pectoralis major muscle increased only in the T0 group after four weeks of training. Using the ITMS device in specific workouts allowed for an increase of shoulder joint adductors torque and power in physical education students.

Keywords: ITMS training; power; shoulder muscles; strength.

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Figures

Figure 1
Figure 1
Participants position during training and the ITMS
Figure 2
Figure 2
Relative changes in maximal torque T0 - group participated in training with no load in addition to the weight of the flywheel; T5 - group participated in training with the flywheel loaded with additional 5 kg; T10 - group participated in training with the flywheel loaded with additional 10 kg; C - control group; * - significant difference from baseline, # - significant difference from the control, (p ≤ 0,05).
Figure 3
Figure 3
Relative changes in maximal power T0 - group participated in training with no load in addition to the weight of the flywheel; T5 - group participated in training with the flywheel loaded with additional 5 kg; T10 - group participated in training with the flywheel loaded with additional 10 kg; C - control group; * - significant difference from baseline, # - significant difference from the control, (p ≤ 0,05).
Picture 1
Picture 1
The Inertial Training and Measurement System
See this image and copyright information in PMC

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