This study evaluated the kinetic differences between the traditional back squat (T-BS) and Smith machine back squat (SM-BS) performed at a variety of loads. Ten subjects were tested in six conditions including the T-BS and SM-BS each performed at 50%, 80%, and 100% of the subject’s five repetition maximum load on a force platform. The analysis of vertical ground reaction forces (GRF) revealed significant main effects for exercise load (p ≤ 0.001) but not for squat condition or the interaction of load and squat condition (p > 0.05). The analysis of sagittal plane GRF revealed significant main effects for exercise load (p ≤ 0.05), squat condition (p ≤ 0.001), and the interaction between load and condition (p ≤ 0.05). The analysis of frontal plane GRF revealed no main effects (p > 0.05). The SM-BS offers the user a resistance stimuli in the sagittal plane against which the exerciser can produce greater sagittal force.
New Investigator Award
Reisimer, Josh J.; Stockero, Alyssa M.; Takahashi, Casey I.; Lange, Dylan T.; Duffin, Garrett T.; and Ebben, William
"MULTI-PLANAR ANALYSIS OF THE TRADITIONAL BACK SQUAT AND SMITH MACHINE BACK SQUAT,"
ISBS Proceedings Archive: Vol. 37
, Article 19.
Available at: https://commons.nmu.edu/isbs/vol37/iss1/19