Validity and Test-retest Reliability of a Resistance Training Device for Smith Machine Back Squat Exercise

Overview

Journal iScience

Publisher Cell Press

Date 2024 Jan 1

PMID 38161425

Authors

Hao-Ran Qu

De-Xing Qian

Shou-Sheng Xu

Yan-Fei Shen

Affiliations

Soon will be listed here.

Abstract

This study evaluated the validity and test-retest reliability of a resistance training device Jueying (Beijing, China) for Smith machine back squat exercise. Twelve male participants completed two test sessions with an interval of one week. In each test session, participants completed 30%, 45%, 60%, and 75% of 1RM back squats on a Smith machine equipped with Jueying and a linear position transducer GymAware (Canberra, Australia), which measured the velocity and power during the movement simultaneously. Results showed that Jueying was both valid (Pearson correlation coefficient [r] = 0.896-0.999, effect size [ES] = 0.004-0.192) when compared with GymAware and consistent between two tests in terms of reliability (intraclass correlation coefficient [ICC] = 0.79-0.95) to assess speed and power within all exercises. The device could be applied to provide athletes and coaches with effective and reliable data in actual application.

Citing Articles

A Network Meta-Analysis on the Effects of Different Exercise Types in Patients With COPD.

Jian C, Peng X, Yang Y, Xu Y, Wang L, Cai D Respir Care. 2024; 69(9):1189-1200.

PMID: 38503464 PMC: 11349583. DOI: 10.4187/respcare.11476.

References

Banyard H, Nosaka K, Sato K, Haff G . Validity of Various Methods for Determining Velocity, Force, and Power in the Back Squat. Int J Sports Physiol Perform. 2017; 12(9):1170-1176. DOI: 10.1123/ijspp.2016-0627. View

Stone M, OBryant H, McCoy L, Coglianese R, Lehmkuhl M, Schilling B . Power and maximum strength relationships during performance of dynamic and static weighted jumps. J Strength Cond Res. 2003; 17(1):140-7. DOI: 10.1519/1533-4287(2003)017<0140:pamsrd>2.0.co;2. View

Argus C, Gill N, Keogh J . Characterization of the differences in strength and power between different levels of competition in rugby union athletes. J Strength Cond Res. 2011; 26(10):2698-704. DOI: 10.1519/JSC.0b013e318241382a. View

Abernethy P, Wilson G, Logan P . Strength and power assessment. Issues, controversies and challenges. Sports Med. 1995; 19(6):401-17. DOI: 10.2165/00007256-199519060-00004. View

Koo T, Li M . A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research. J Chiropr Med. 2016; 15(2):155-63. PMC: 4913118. DOI: 10.1016/j.jcm.2016.02.012. View

Hass C, Feigenbaum M, Franklin B . Prescription of resistance training for healthy populations. Sports Med. 2001; 31(14):953-64. DOI: 10.2165/00007256-200131140-00001. View

Peterson M, Rhea M, Alvar B . Maximizing strength development in athletes: a meta-analysis to determine the dose-response relationship. J Strength Cond Res. 2004; 18(2):377-82. DOI: 10.1519/R-12842.1. View

Courel-Ibanez J, Martinez-Cava A, Moran-Navarro R, Escribano-Penas P, Chavarren-Cabrero J, Gonzalez-Badillo J . Reproducibility and Repeatability of Five Different Technologies for Bar Velocity Measurement in Resistance Training. Ann Biomed Eng. 2019; 47(7):1523-1538. DOI: 10.1007/s10439-019-02265-6. View

Gonzalez-Badillo J, Yanez-Garcia J, Mora-Custodio R, Rodriguez-Rosell D . Velocity Loss as a Variable for Monitoring Resistance Exercise. Int J Sports Med. 2017; 38(3):217-225. DOI: 10.1055/s-0042-120324. View

10.

Grgic J, Lazinica B, Garofolini A, Schoenfeld B, Saner N, Mikulic P . The effects of time of day-specific resistance training on adaptations in skeletal muscle hypertrophy and muscle strength: A systematic review and meta-analysis. Chronobiol Int. 2019; 36(4):449-460. DOI: 10.1080/07420528.2019.1567524. View

11.

Argus C, Gill N, Keogh J, Hopkins W . Acute effects of verbal feedback on upper-body performance in elite athletes. J Strength Cond Res. 2011; 25(12):3282-7. DOI: 10.1519/JSC.0b013e3182133b8c. View

12.

Dorrell H, Moore J, Smith M, Gee T . Validity and reliability of a linear positional transducer across commonly practised resistance training exercises. J Sports Sci. 2018; 37(1):67-73. DOI: 10.1080/02640414.2018.1482588. View

13.

Lake J, Augustus S, Austin K, Mundy P, McMahon J, Comfort P . The Validity of the Push Band 2.0 during Vertical Jump Performance. Sports (Basel). 2018; 6(4). PMC: 6316333. DOI: 10.3390/sports6040140. View

14.

Garnacho-Castano M, Lopez-Lastra S, Mate-Munoz J . Reliability and validity assessment of a linear position transducer. J Sports Sci Med. 2015; 14(1):128-36. PMC: 4306764. View

15.

Orange S, Metcalfe J, Marshall P, Vince R, Madden L, Liefeith A . Test-Retest Reliability of a Commercial Linear Position Transducer (GymAware PowerTool) to Measure Velocity and Power in the Back Squat and Bench Press. J Strength Cond Res. 2018; 34(3):728-737. DOI: 10.1519/JSC.0000000000002715. View

16.

Grgic J, Scapec B, Pedisic Z, Mikulic P . Test-Retest Reliability of Velocity and Power in the Deadlift and Squat Exercises Assessed by the GymAware PowerTool System. Front Physiol. 2020; 11:561682. PMC: 7510176. DOI: 10.3389/fphys.2020.561682. View

17.

Hopkins W, Marshall S, Batterham A, Hanin J . Progressive statistics for studies in sports medicine and exercise science. Med Sci Sports Exerc. 2008; 41(1):3-13. DOI: 10.1249/MSS.0b013e31818cb278. View

18.

Gonzalez-Badillo J, Sanchez-Medina L . Movement velocity as a measure of loading intensity in resistance training. Int J Sports Med. 2010; 31(5):347-52. DOI: 10.1055/s-0030-1248333. View

19.

Atkinson G, Nevill A . Statistical methods for assessing measurement error (reliability) in variables relevant to sports medicine. Sports Med. 1998; 26(4):217-38. DOI: 10.2165/00007256-199826040-00002. View

20.

Sindiani M, Lazarus A, Dello Iacono A, Halperin I . Perception of changes in bar velocity in resistance training: Accuracy levels within and between exercises. Physiol Behav. 2020; 224:113025. DOI: 10.1016/j.physbeh.2020.113025. View