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Effect of supportive equipment on force, velocity, and power in the squat.
J Strength Cond Res. 2012 Dec; 26(12):3204-8.JS

Abstract

The purpose of this investigation was to examine various kinetic and kinematic variables associated with squats without and with the use of a squat suit (SS). No previous investigation has examined the effect of an SS on squat performance. Participants were 8 elite or professional level male powerlifters (height = 178.59 ± 3.5 cm; body mass = 106.8 ± 30.4 kg; age = 25 ± 2.2 years; mean 1 repetition maximum [1RM] =197.7 ± 53 kg). Subjects participated in 3 testing sessions, with the first session involving a 1RM squat without a squat suit (NSS). Sessions 2 and 3 involved a testing session completing 2 trials in the squat at 3 intensities (80, 90, and 100% of 1RM) either without (NSS) or with an SS. The session and order of the intensities were all randomized. Force-time, velocity-time, and power-time graphs were calculated from data from a force plate and 2 linear position transducers attached to the barbell. Peak eccentric force was significantly higher during SS at 100% of 1RM (NSS-100 = 3196.2 ± 470.6, SS-100 = 3369.7 ± 589.9 N). Peak concentric velocity was significantly higher during SS in comparison to NSS at all intensities. Peak concentric power was significantly higher during SS at 80% of 1RM (NSS-80 = 1566.5 ± 388.4 W, SS-80 = 1770.4 ± 483.2 W) and 90% of 1RM (NSS-90 = 1493.1 ± 296.2 W, SS-90 = 1723.8 ± 449.5 W). The current investigation has demonstrated significantly different kinetic and kinematic characteristics between squats without (NSS) and with an SS, which could ultimately aid in enhancing squat performance.

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Authors+Show Affiliations

Blatnik JA
Neuromuscular Laboratory, Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, North Carolina, USA.
Skinner JW
No affiliation info available
McBride JM
No affiliation info available

MeSH

AdultBiomechanical PhenomenaClothingHumansLegLinear ModelsMaleMovementMuscle, SkeletalPressureTransducersWeight Lifting

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22996018

Citation

Blatnik, Justin A., et al. "Effect of Supportive Equipment On Force, Velocity, and Power in the Squat." Journal of Strength and Conditioning Research, vol. 26, no. 12, 2012, pp. 3204-8.
Blatnik JA, Skinner JW, McBride JM. Effect of supportive equipment on force, velocity, and power in the squat. J Strength Cond Res. 2012;26(12):3204-8.
Blatnik, J. A., Skinner, J. W., & McBride, J. M. (2012). Effect of supportive equipment on force, velocity, and power in the squat. Journal of Strength and Conditioning Research, 26(12), 3204-8. https://doi.org/10.1519/JSC.0b013e3182736641
Blatnik JA, Skinner JW, McBride JM. Effect of Supportive Equipment On Force, Velocity, and Power in the Squat. J Strength Cond Res. 2012;26(12):3204-8. PubMed PMID: 22996018.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of supportive equipment on force, velocity, and power in the squat. AU - Blatnik,Justin A, AU - Skinner,Jared W, AU - McBride,Jeffrey M, PY - 2012/9/22/entrez PY - 2012/9/22/pubmed PY - 2013/5/28/medline SP - 3204 EP - 8 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 26 IS - 12 N2 - The purpose of this investigation was to examine various kinetic and kinematic variables associated with squats without and with the use of a squat suit (SS). No previous investigation has examined the effect of an SS on squat performance. Participants were 8 elite or professional level male powerlifters (height = 178.59 ± 3.5 cm; body mass = 106.8 ± 30.4 kg; age = 25 ± 2.2 years; mean 1 repetition maximum [1RM] =197.7 ± 53 kg). Subjects participated in 3 testing sessions, with the first session involving a 1RM squat without a squat suit (NSS). Sessions 2 and 3 involved a testing session completing 2 trials in the squat at 3 intensities (80, 90, and 100% of 1RM) either without (NSS) or with an SS. The session and order of the intensities were all randomized. Force-time, velocity-time, and power-time graphs were calculated from data from a force plate and 2 linear position transducers attached to the barbell. Peak eccentric force was significantly higher during SS at 100% of 1RM (NSS-100 = 3196.2 ± 470.6, SS-100 = 3369.7 ± 589.9 N). Peak concentric velocity was significantly higher during SS in comparison to NSS at all intensities. Peak concentric power was significantly higher during SS at 80% of 1RM (NSS-80 = 1566.5 ± 388.4 W, SS-80 = 1770.4 ± 483.2 W) and 90% of 1RM (NSS-90 = 1493.1 ± 296.2 W, SS-90 = 1723.8 ± 449.5 W). The current investigation has demonstrated significantly different kinetic and kinematic characteristics between squats without (NSS) and with an SS, which could ultimately aid in enhancing squat performance. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/22996018/Effect_of_supportive_equipment_on_force_velocity_and_power_in_the_squat_ L2 - https://doi.org/10.1519/JSC.0b013e3182736641 DB - PRIME DP - Unbound Medicine ER -