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Validity of the Myotest® in measuring force and power production in the squat and bench press.
J Strength Cond Res. 2011 Aug; 25(8):2293-7.JS

Abstract

The purpose of this study was to verify the concurrent validity of a bar-mounted Myotest® instrument in measuring the force and power production in the squat and bench press exercises when compared to the gold standard of a computerized linear transducer and force platform system. Fifty-four men (bench press: 39-171 kg; squat: 75-221 kg) and 43 women (bench press: 18-80 kg; squat: 30-115 kg) (age range 18-30 years) performed a 1 repetition maximum (1RM) strength test in bench press and squat exercises. Power testing consisted of the jump squat and the bench throw at 30% of each subject's 1RM. During each measurement, both the Myotest® instrument and the Celesco linear transducer of the directly interfaced BMS system (Ballistic Measurement System [BMS] Innervations Inc, Fitness Technology force plate, Skye, South Australia, Australia) were mounted to the weight bar. A strong, positive correlation (r) between the Myotest and BMS systems and a high correlation of determination (R2) was demonstrated for bench throw force (r = 0.95, p < 0.05) (R2 = 0.92); bench throw power (r = 0.96, p < 0.05) (R2 = 0.93); squat jump force (r = 0.98, p < 0.05) (R2 = 0.97); and squat jump power (r = 0.91, p < 0.05) (R2 = 0.82). In conclusion, when fixed on the bar in the vertical axis, the Myotest is a valid field instrument for measuring force and power in commonly used exercise movements.

Authors+Show Affiliations

Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

21747293

Citation

Comstock, Brett A., et al. "Validity of the Myotest® in Measuring Force and Power Production in the Squat and Bench Press." Journal of Strength and Conditioning Research, vol. 25, no. 8, 2011, pp. 2293-7.
Comstock BA, Solomon-Hill G, Flanagan SD, et al. Validity of the Myotest® in measuring force and power production in the squat and bench press. J Strength Cond Res. 2011;25(8):2293-7.
Comstock, B. A., Solomon-Hill, G., Flanagan, S. D., Earp, J. E., Luk, H. Y., Dobbins, K. A., Dunn-Lewis, C., Fragala, M. S., Ho, J. Y., Hatfield, D. L., Vingren, J. L., Denegar, C. R., Volek, J. S., Kupchak, B. R., Maresh, C. M., & Kraemer, W. J. (2011). Validity of the Myotest® in measuring force and power production in the squat and bench press. Journal of Strength and Conditioning Research, 25(8), 2293-7. https://doi.org/10.1519/JSC.0b013e318200b78c
Comstock BA, et al. Validity of the Myotest® in Measuring Force and Power Production in the Squat and Bench Press. J Strength Cond Res. 2011;25(8):2293-7. PubMed PMID: 21747293.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validity of the Myotest® in measuring force and power production in the squat and bench press. AU - Comstock,Brett A, AU - Solomon-Hill,Glenn, AU - Flanagan,Shawn D, AU - Earp,Jacob E, AU - Luk,Hui-Ying, AU - Dobbins,Kathryn A, AU - Dunn-Lewis,Courtenay, AU - Fragala,Maren S, AU - Ho,Jen-Yu, AU - Hatfield,Disa L, AU - Vingren,Jakob L, AU - Denegar,Craig R, AU - Volek,Jeff S, AU - Kupchak,Brian R, AU - Maresh,Carl M, AU - Kraemer,William J, PY - 2011/7/13/entrez PY - 2011/7/13/pubmed PY - 2011/12/13/medline SP - 2293 EP - 7 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 25 IS - 8 N2 - The purpose of this study was to verify the concurrent validity of a bar-mounted Myotest® instrument in measuring the force and power production in the squat and bench press exercises when compared to the gold standard of a computerized linear transducer and force platform system. Fifty-four men (bench press: 39-171 kg; squat: 75-221 kg) and 43 women (bench press: 18-80 kg; squat: 30-115 kg) (age range 18-30 years) performed a 1 repetition maximum (1RM) strength test in bench press and squat exercises. Power testing consisted of the jump squat and the bench throw at 30% of each subject's 1RM. During each measurement, both the Myotest® instrument and the Celesco linear transducer of the directly interfaced BMS system (Ballistic Measurement System [BMS] Innervations Inc, Fitness Technology force plate, Skye, South Australia, Australia) were mounted to the weight bar. A strong, positive correlation (r) between the Myotest and BMS systems and a high correlation of determination (R2) was demonstrated for bench throw force (r = 0.95, p < 0.05) (R2 = 0.92); bench throw power (r = 0.96, p < 0.05) (R2 = 0.93); squat jump force (r = 0.98, p < 0.05) (R2 = 0.97); and squat jump power (r = 0.91, p < 0.05) (R2 = 0.82). In conclusion, when fixed on the bar in the vertical axis, the Myotest is a valid field instrument for measuring force and power in commonly used exercise movements. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/21747293/Validity_of_the_Myotest®_in_measuring_force_and_power_production_in_the_squat_and_bench_press_ L2 - https://doi.org/10.1519/JSC.0b013e318200b78c DB - PRIME DP - Unbound Medicine ER -