Eccentric Training and Biceps Femoris Architecture and Strength: A Systematic Review With Meta-Analysis.

doi:10.4085/1062-6050-194-19

Paper

Eccentric Training and Biceps Femoris Architecture and Strength: A Systematic Review With Meta-Analysis.

Published Mar 27, 2020 · Rémy Gérard, Léo Gojon, P. Declève

Journal of athletic training

Q1 SJR score

28

Citations

4

Influential Citations

Full textSemantic Scholar

Abstract

OBJECTIVE To determine the effects of an eccentric hamstrings strength-training program, performed for at least 4 weeks by healthy adults, on muscle architecture and eccentric strength. DATA SOURCES A systematic search was performed through October 2018 in the following electronic databases: PubMed, PEDro, CINAHL and SPORTDiscus. A combination of the following search terms was used: eccentric strength training, eccentric loading, nordic hamstring, hamstring strength, fascicle length, pennation angle, muscle thickness, muscle architecture, biceps femoris long head, biceps femoris, and hamstring muscles. STUDY SELECTION Included articles were randomized controlled trials that allowed comparisons between isolated eccentric strength training for the biceps femoris muscle and other programs. DATA EXTRACTION Data from the included studies were extracted by 2 independent reviewers. These data included the study design, participant characteristics, inclusion and exclusion criteria of clinical studies, exercise and intervention characteristics, outcome measures, and the main results of the study. When meta-analysis was possible, we performed quantitative analysis. Ten randomized controlled trials were included. DATA SYNTHESIS Limited to moderate evidence indicated that eccentric strength training was associated with an increase in fascicle length (mean difference [MD] = 1.97; 95% confidence interval [CI] = 1.48, 2.46), an increase in muscle thickness (MD = 0.10; 95% CI = 0.06, 0.13), and a decrease in pennation angle (MD = 2.36; 95% CI = 3.11, 1.61). Conflicted to moderate evidence indicated that eccentric hamstrings strength was increased after eccentric strength training compared with concentric strength training (standardized mean difference [SMD] = 1.06; 95% CI = 0.26, 1.86), usual level of activity (SMD = 2.72; 95% CI = 1.68, 3.77), and static stretching (SMD = 0.39; 95% CI = -0.97, 1.75). CONCLUSIONS In healthy adults, an eccentric strength-training program produced architectural adaptations of the long head of the biceps femoris muscle and increased eccentric hamstrings strength.

Meta-Analysis

Study Snapshot

Eccentric strength-training programs in healthy adults can improve muscle architecture and increase eccentric hamstring strength.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Sign up to use Study Snapshot

Consensus is limited without an account. Create an account or sign in to get more searches and use the Study Snapshot.

Create an account

Paper

Eccentric Training and Biceps Femoris Architecture and Strength: A Systematic Review With Meta-Analysis.

Sign up to use Study Snapshot

References

Predisposing factors to hamstring neuromuscular deficits—implications for prevention and rehabilitation of hamstring strain injuries: a narrative review

Sensory input impairment, neural tension, fatigue, competitive anxiety, and lumbar-pelvic motor control deficits are serious risk factors for hamstring strain injuries and re-injury.

The effect of Nordic hamstring exercise training volume on biceps femoris long head architectural adaptation

Nordic hamstring exercise increases biceps femoris long head fascicle length and eccentric knee flexor strength, but architectural adaptations revert to baseline levels within two weeks of cessation.

Changes in muscle architecture of biceps femoris induced by eccentric strength training with nordic hamstring exercise

Eccentric strength training with nordic hamstring exercise alters the biceps femoris long head's architecture, potentially impacting injury prevention and rehabilitation programs.

Chronic Adaptations to Eccentric Training: A Systematic Review

Eccentric training is more effective than traditional resistance training in improving muscle strength, power, and speed performance, with unique adaptations in muscle-tendon units.

Four Weeks of Nordic Hamstring Exercise Reduce Muscle Injury Risk Factors in Young Adults

A 4-week Nordic hamstring exercise program effectively reduces multiple hamstring injury risk factors in physically active young adults without significant changes in muscle thickness.

Citations

Acute effects of resistance exercise on the muscle architecture and tissue organization of the maximal isometrically contracted and uncontracted gastrocnemius medialis muscle.

Resistance exercise alters muscle architecture for more than 15 minutes, but tissue organization reverts to baseline within 15 minutes.

The Effects of Nordic Hamstring Exercise on Performance and Injury in the Lower Extremities: An Umbrella Review

Nordic Hamstring Exercise (NHE) improves athletic performance and prevents hamstring injuries, with high-volume followed by low-volume maintenance achieving more positive results.

Laceration of the Distal Biceps Femoris Tendon

Evidence-based interventions for hamstring strain may be useful for managing partial tendon laceration injuries, improving range of motion, strength, and aerobic fitness.

A 6-week randomized-controlled field study: effect of isokinetic eccentric resistance training on strength, flexibility and muscle structure of the shoulder external rotators in male junior handball players

Eccentric isokinetic training significantly improves strength and muscle structure in male junior handball players, but does not change range of motion.

The Effects of an 8-Week Strength Training Toward the Specific Preparation Phase on Male Volleyball Athletes’ Performance

An 8-week strength training program, conducted during a specific preparation phase, significantly improves power, strength, and flexibility in male junior volleyball athletes.

Resistance Training Practices of Brazilian Olympic Sprint and Jump Coaches: Toward a Deeper Understanding of Their Choices and Insights (Part III)

Brazilian Olympic sprint and jump coaches primarily use various resistance training methods and exercises to maximize their athletes' sprint and jump capabilities.