Back Squat v Front Squat v Transformer-bar Squat: Part 2 Biomechanical Differences

Back Squat v Front Squat v Transformer-bar Squat:

SERIES (2/3)
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Biomechanical Differences
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METHODS:
10 males and 8 females performed 6 squat conditions:

• Back Squats with straight bar.
• Front Squats with straight bar.
• Back Squats with transformer bar.
• Front squats with transformer bar.
• Posterior loads with transformer bar.
• Anteriorly loads with transformer bar.
• A constant load of 70% of the person’s 1RM in the straight-bar front squat was used.

Kinematic and kinetic data were collected to quantify joint biomechanics at an estimated parallel squat position in the descending and ascending phases.
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FINDINGS:

• Squats with more anteriorly placed load significantly decreased trunk flexion and pelvis anterior tilt angles.
• Squats with more anteriorly placed loads increased low-back extension.
• Hip, knee, and ankle extension were generally similar.
• Participants adjusted their trunk and pelvis to mediate the effects of load placements on low-back and lower extremity moments.

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NEXT UP:
3️⃣Clinical Implications
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SOURCES:
Maja Goršič , LuAnna E. Rochelle , Jacob S. Layer , Derek T. Smith , Domen Novak & Boyi Dai (2020): Biomechanical comparisons of back and front squats with a straight bar and four squats with a transformer bar, Sports Biomechanics, DOI: 10.1080/14763141.2020.1832563

Via @physicaltherapyresearch on Instagram, reposted with permission

Dalton Urrutia, MSc PT

Dalton is a Physical Therapist from Oregon, currently living and running the performance physiotherapy clinic he founded in London for Grapplers and Strength & Conditioning athletes. Dalton runs the popular instagram account @physicaltherapyresearch, where he posts easy summaries of current and relevant research on health, fitness, and rehab topics. 

Want to learn more or contact him?

Reach out online:

@physicaltherapyresearch

@Grapplersperformance

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