EMG Pattern of Lower Extremity Muscle for iSAAC a New Resistance Training Machine

Seiichi Yokoi, Toyoyuki Honjo, Naruhiro Shiozawa, Toshiyuki Kurihara, Takatoshi Higuchi, Tadao Isaka

2014

Abstract

Many researchers have investigated muscle contraction, often focusing on eccentric contraction. However, some studies have revealed that concentric-only training contributes to increased concentric strength. Moreover, eccentric contraction induces more muscle damage than concentric contraction. Even though there is great demand for eccentric contraction in practice, concentric contraction is essential for an athlete’s performance. To focus on concentric contraction exercise, we developed a concentric-only exercise machine designated Intelligent System of Advanced Actuation for Concentric Training (iSAAC). In this study, we compared the EMG patterns of squat (SQT), seated leg press (LP), and iSAAC. We observed a unique EMG pattern and the generation of explosive power during knee extension with iSAAC. Therefore, iSAAC enables athletes to enhance the concentric strength of their lower extremity muscles.

References

1. Baechle, T. R., Earle, R.W., 2000. Essentials of strength training and conditioning, Human Kinetics, Champaign, IL, 2nd edition.
2. Blazevich, A. J., et al., 2007. "Influence of concentric and eccentric resistance training on architectural adaptation in human quadriceps muscles." J Appl Physiol 103(5): 1565-1575.
3. Seger, J. Y., et al., 1998. "Specific effects of eccentric and concentric training on muscle strength and morphology in humans." Eur J Appl Physiol Occup Physiol 79(1): 49-57.
4. Kovacevic, Erol, et al., 2013 "The effects of concentric isokinetic training on jumping performance." Homo Sporticus 15.2: 29-34.

Paper Citation

in Harvard Style

Yokoi S., Honjo T., Shiozawa N., Kurihara T., Higuchi T. and Isaka T. (2014). EMG Pattern of Lower Extremity Muscle for iSAAC a New Resistance Training Machine . In - icSPORTS, ISBN , pages 0-0

in Bibtex Style

@conference{icsports14,
author={Seiichi Yokoi and Toyoyuki Honjo and Naruhiro Shiozawa and Toshiyuki Kurihara and Takatoshi Higuchi and Tadao Isaka},
title={EMG Pattern of Lower Extremity Muscle for iSAAC a New Resistance Training Machine},
booktitle={ - icSPORTS,},
year={2014},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}

in EndNote Style

TY - CONF
JO - - icSPORTS,
TI - EMG Pattern of Lower Extremity Muscle for iSAAC a New Resistance Training Machine
SN -
AU - Yokoi S.
AU - Honjo T.
AU - Shiozawa N.
AU - Kurihara T.
AU - Higuchi T.
AU - Isaka T.
PY - 2014
SP - 0
EP - 0
DO -