Tags

Type your tag names separated by a space and hit enter

Effects of exercise with and without different degrees of blood flow restriction on torque and muscle activation.
Muscle Nerve. 2015 May; 51(5):713-21.MN

Abstract

INTRODUCTION

An unresolved question in resistance training combined with blood flow restriction (BFR) is what percentage of estimated arterial occlusion pressure provides the most robust acute muscular response.

METHODS

Forty participants were assigned to Experiments 1, 2, or 3. Each experiment completed exercise protocols differing by pressure, exercise load, and/or volume. Torque was measured pre- and postexercise, and muscle activation was measured pre- and during each set.

RESULTS

Pressure and load did not affect torque greatly. Muscle activation increased in all conditions (P < 0.05) and was higher with 30% 1RM compared with 20% 1RM. Pressure appeared to increase muscle activation from 40% to 50% arterial occlusion [66% vs. 87% maximal voluntary contraction (30% 1RM)] but was not further increased with higher pressure.

CONCLUSION

Different levels of BFR may alter the acute muscular response to a degree, although higher pressures do not appear to augment these changes.

Authors+Show Affiliations

Department of Health, Exercise Science, and Recreation Management, The University of Mississippi, Oxford, Mississippi, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

25187395

Citation

Loenneke, Jeremy P., et al. "Effects of Exercise With and Without Different Degrees of Blood Flow Restriction On Torque and Muscle Activation." Muscle & Nerve, vol. 51, no. 5, 2015, pp. 713-21.
Loenneke JP, Kim D, Fahs CA, et al. Effects of exercise with and without different degrees of blood flow restriction on torque and muscle activation. Muscle Nerve. 2015;51(5):713-21.
Loenneke, J. P., Kim, D., Fahs, C. A., Thiebaud, R. S., Abe, T., Larson, R. D., Bemben, D. A., & Bemben, M. G. (2015). Effects of exercise with and without different degrees of blood flow restriction on torque and muscle activation. Muscle & Nerve, 51(5), 713-21. https://doi.org/10.1002/mus.24448
Loenneke JP, et al. Effects of Exercise With and Without Different Degrees of Blood Flow Restriction On Torque and Muscle Activation. Muscle Nerve. 2015;51(5):713-21. PubMed PMID: 25187395.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of exercise with and without different degrees of blood flow restriction on torque and muscle activation. AU - Loenneke,Jeremy P, AU - Kim,Daeyeol, AU - Fahs,Christopher A, AU - Thiebaud,Robert S, AU - Abe,Takashi, AU - Larson,Rebecca D, AU - Bemben,Debra A, AU - Bemben,Michael G, PY - 2014/09/01/accepted PY - 2014/9/5/entrez PY - 2014/9/5/pubmed PY - 2015/7/21/medline KW - KAATSU KW - amplitude KW - muscle hypertrophy KW - muscle strength KW - occlusion training SP - 713 EP - 21 JF - Muscle & nerve JO - Muscle Nerve VL - 51 IS - 5 N2 - INTRODUCTION: An unresolved question in resistance training combined with blood flow restriction (BFR) is what percentage of estimated arterial occlusion pressure provides the most robust acute muscular response. METHODS: Forty participants were assigned to Experiments 1, 2, or 3. Each experiment completed exercise protocols differing by pressure, exercise load, and/or volume. Torque was measured pre- and postexercise, and muscle activation was measured pre- and during each set. RESULTS: Pressure and load did not affect torque greatly. Muscle activation increased in all conditions (P < 0.05) and was higher with 30% 1RM compared with 20% 1RM. Pressure appeared to increase muscle activation from 40% to 50% arterial occlusion [66% vs. 87% maximal voluntary contraction (30% 1RM)] but was not further increased with higher pressure. CONCLUSION: Different levels of BFR may alter the acute muscular response to a degree, although higher pressures do not appear to augment these changes. SN - 1097-4598 UR - https://www.unboundmedicine.com/medline/citation/25187395/Effects_of_exercise_with_and_without_different_degrees_of_blood_flow_restriction_on_torque_and_muscle_activation_ L2 - https://doi.org/10.1002/mus.24448 DB - PRIME DP - Unbound Medicine ER -