Key result
Lower relative back squat strength was significantly associated with seasonal lower extremity injury in both male (p=0.02) and female (p=0.04) collegiate athletes (effect size g=0.85-0.86).
Why the study?
The study was conducted to determine the efficacy of using Division I athletes relative strength in the 1RM barbell back squat to identify seasonal lower extremity injury.
Does relative barbell back squat strength identify seasonal lower extremity injury risk in collegiate athletes?
Observational (n=71)
Does relative barbell back squat strength identify seasonal lower extremity injury risk in collegiate athletes?
Effect estimate: g = 0.85-0.86
p-value: p=0.02 (men), 0.04 (women)
Preseason relative 1RM back squat strength may serve as a useful screening tool for identifying seasonal lower extremity injury risk in collegiate athletes.
Relative back squat strength may flag seasonal injury risk in collegiate athletes; hypothesis-generating and requires prospective validation before screening use.
Case, MJ, Knudson, DV, and Downey, DL. Barbell squat relative strength as an identifier for lower extremity injury in collegiate athletes. J Strength Cond Res 34(5): 1249-1253, 2020-The aim of the study was to determine the efficacy of using the relative strength level of Division I athletes in One repetition maximum (1RM) barbell back squat as an identifier of seasonal lower extremity (LE) injury. One repetition maximum back squat (kg) and reported LE injuries were retrospectively collected for Division I male football (n = 46), female volleyball and softball athletes (n = 25). Maximum preseason relative (body mass normalized) back squat strength values were compared with 2 analyses of variance (p < 0.05) between injured and uninjured male (football) and female athletes (softball & volleyball). Relative back squat strength was significantly lower in injured athletes than uninjured athletes in both men (F = 6.03, p = 0.02) and women (F = 4.68, p = 0.04) with a moderate to large effect size (g = 0.86-0.85). These data indicate the potential of 1RM back squat relative strength serving as one tool in multi-factor preseason screening for LE injury risk in these sports. Male athletes with relative squat strength below 2.2 and female athletes below 1.6 in these sports could be more susceptible to LE injury over a season. Strength professionals should consider using body mass normalized 1RM back squats as a screening tool for seasonal LE injury risk in college athletes.
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Case et al. (2020) conducted an observational in Lower extremity injury (n=71). Relative strength level in 1RM barbell back squat vs. Uninjured athletes was evaluated on Seasonal lower extremity injury (g = 0.85-0.86, p=0.02 (men), 0.04 (women)). Lower relative back squat strength was significantly associated with seasonal lower extremity injury in both male (p=0.02) and female (p=0.04) collegiate athletes (effect size g=0.85-0.86).
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