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January 1, 2019International journal of exercise scienceOpen Access

Can Blood Flow Restricted Exercise Improve Ham:Quad Ratios Better Than Traditional Training?

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Why the study?

Muscular deficiencies between the quadriceps and hamstrings are prevalent among women and often lead to knee injury and ACL tears, but whether short-term resistance training with blood flow restriction improves hamstring:quadriceps ratios was unclear.

Does short term resistance training with blood flow restriction improve hamstring:quadricep ratios better than traditional training in young women?

Population

14 women aged 18-25 yrs

Comparison

Traditional resistance training combined with BFR vs traditional resistance training alone

Design

Randomized trial

Follow-up

6 weeks

Authors

MBMichael G. BembenPreventive CardiologyKMKirsten M. MitcheltreeUniversity of OklahomaRLRebecca LarsonUniversity of Oklahoma

Discussion

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Implication

BFR training does not improve H:Q ratios over high-load in young women; confirms equivalent hamstring strength gains.

Structured PICO

Does short term resistance training with blood flow restriction improve hamstring:quadricep ratios better than traditional training in young women?

P
Population
14 women (18-25 yrs) with potential muscular deficiencies between quadriceps and hamstrings
I
Intervention
Blood flow restriction (BFR) resistance training in combination with traditional resistance training (RT+BFR: n=6). Trained 3 days/week for 6 weeks. First 5 exercises similar to RT group, but performed two-leg hamstring curl under BFR at 50% of occlusive pressure and 30% 1RM, completing 4 sets (30, 15, 15, 15) with 30 seconds rest between sets.
C
Comparator
Traditional resistance training (RT: n=8). Trained 3 days/week for 6 weeks. Completed 3 sets of 10 reps at 70% of their one-repetition maximum (1RM) with 1-minute rest between sets.
O
Outcome
Hamstring:quadricep ratios (H:Q) at four testing speeds (60°/s, 180°/s, 240°/s, and 300º/s) post-trainingsurrogate

Low-load blood flow restriction training improves hamstring strength similarly to traditional high-load training, but neither significantly alters hamstring:quadricep ratios in young women.

Cite This Study

Bemben et al. (2019) studied this question.

synapsesocial.com/papers/6a2173845c0c8498e2580950https://doi.org/10.70252/noia5666
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Assessment of Physical Activity: An International Perspective2000 · 1,128 citations
  2. 2Muscular adaptations after two different volumes of blood flow‐restricted training2012 · 156 citations
  3. 3The effects of resistance exercise with and without different degrees of blood-flow restriction on perceptual responses2015 · 72 citations
  4. 4Blood Flow Restriction Training: Implementation into Clinical Practice2017 · 69 citations
  5. 5Cross-Transfer Effects of Resistance Training with Blood Flow Restriction2008 · 235 citations