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ELECTROMYOGRAPHY (EMG)

EMG represents the level of activation of the muscle or muscle activity. Muscle activity throughout each repetition was averaged and presented as a % of the muscle activity recorded when the exercise was performed under the traditional weight condition (100%). A 100% value indicates that the muscle activity in that condition was the same as the muscle activity measured when the exercise was performed with traditional weights. Values greater than 100% indicate that the muscle activity in that condition was the greater than that measured when the exercise was performed with traditional weights. Values less than 100% indicate that the muscle activity in that condition was the less than that measured when the exercise was performed with traditional weights.

OVERVIEW

Exercises using the Waveweight were evaluated in the USC Human Performance Laboratory at the CATZ Training Center in Pasadena, CA on June 30th, 2017 by ETScience, LLC. Exercises performed using the Waveweight were compared to the same exercises performed using traditional weights. Muscle activity of 6 muscle groups were compared between conditions for 5 exercises using standard electromyography procedures. One male subject was instrumented for electromyography (EMG) analysis. The external oblique muscle was chosen to represent abdominal muscle activation and the erector spinae represented the back extensors. Six wireless bipolar surface electrodes were placed over the muscle groups listed:

MUSCLE GROUPS TESTED

Erector Spinae 

External Oblique 

Pectoralis Major 

Triceps 

Biceps 

Deltoid

EXERCISES PERFORMED

Overhead Press 

Biceps Curl 

Overhead Squat 

Upright Twist/Bus Driver 

Alternating Shoulder Press

SUMMARY

Overall, greater muscle activity was observed in the muscle groups tested when exercises were performed using the Waveweight compared to traditional weight lifting movements. The increases were as much as 300% in the triceps, pectoralis major and external oblique muscles in specific exercises. Increases up to 200% were observed across exercises in various muscle groups.  

Exercises performed using the Waveweight were compared to the same exercises performed using traditional weights.  Muscle activity of 6 muscle groups were compared between conditions for 5 exercises. 100% indicates that the muscle activity in that condition was the same as that measured when the exercise was performed with traditional weights. Values greater than 100% indicate that the muscle activity in that condition was the greater than that measured when the exercise was performed with traditional weights.  Values less than 100% indicate that the muscle activity in that condition was the less than that measured when the exercise was performed with traditional weights. See graphs below.

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