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(14 found)

SCJ 47.4 The Rationale and Application of Eccentric-Based Exercises in Sports: Practical Suggestions for Its Implementation

CATD 0.2

Considering the great popularity of eccentric-based training, the purpose of this review is to first provide the scientific rationale for its use; second, summarize the eccentric-based training modalities that can be used; and finally, offer practical recommendations on how to implement eccentricbased modalities to enhance sports performance. The molecular and neural mechanisms underlying eccentric actions are partially distinct from those of concentric and isometric actions. During eccentric actions, theories suggest a strain-induced modulation of actin-myosin interactions at the crossbridge level, activation of structural protein titin, and winding of titin on actin. Eccentric acute physiological responses differ from concentric exercise responses, including variations in neuromuscular, metabolic, hormonal, and anabolic signaling. Eccentric training elicits greater improvements in muscle strength, power, and stretch-shortening cycle function compared with concentric-only or traditional resistance training. Therefore, eccentric-based training can lead to unique neuromuscular (e.g., improved coordination of motor units) and morphological (e.g., increased muscle fascicle length and enhanced distal cross-sectional area) adaptations that could play a key role in sport performance. Practitioners may implement eccentric exercises with external loads, fully eccentric-based exercises (e.g., Nordic hamstring curl), accentuated eccentric loading, flywheel resistance exercise, and plyometrics to develop specific physical adaptations in line with their goals. Eccentric work (e.g., for hamstrings) can be obtained during other exercises such as downhill running tasks, decelerations, and sprinting activities. Practitioners need to be aware that no single “silver bullet” training modality exists; consequently, practitioners should use a combination of eccentric-based training approaches with their athletes to obtain the desired adaptations.

Hamstring Training for Injury Prevention – Part I

January 1, 2013

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This article provides a review of the anatomy of the hamstring muscles and includes ways to minimize the severity and frequency of hamstring strains.

Coaches Exercise Science Program design injury prevention hamstring injury hamstring strain; hamstring training

Muscle Extensibility Testing for the Lower Extremity – A Review for the Personal Trainer

June 5, 2020

Article

The purpose of this article is to provide personal trainers with a review of common muscle extensibility tests of the lower extremity.

Personal trainers Client Consultation|Assessment Muscle Extensibility Flexibility Mobility Client Assessment

Squat Loading Position Considerations Based on Clients’ Needs

June 28, 2024

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This article will analyze and compare squats with different loading positions to draw out practical applications for the personal trainer.

Personal trainers Exercise Science Program design Squat Gluteal Activation Quadriceps Safety Bar Smith Machine

Are the Seated Leg Extension, Leg Curl, and Adduction Machine Exercises Non-Functional or Risky?

June 1, 2017

Article

This article highlights the scientific evidence on exercises like the seated leg extension, leg curl, and adduction machines to highlight their potential benefits on enhanced performance and potentially reducing injury risk.

Personal trainers Exercise Science Program design Safety PTQ injury risk seated leg extension seated leg curl adduction machine personal training

Risk-Benefit Considerations for Deadlifting in Rehabilitating Low-Back Injuries

April 30, 2025

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This article highlights the key benefits of deadlifts in exercise therapy, addressing the often-overlooked issue of low-back pain in strength and conditioning.

Coaches Exercise Science Exercise Technique Program design Organization and Administration Testing and Evaluation Client Consultation|Assessment Basic Pathophysiology and Science of Health Status or Condition and Disorder or Disease Workout Injury Joint Health Resistance training Lumbar Spine posterior-chain rehabilitation exercise Low-Back Injury Weight Lifting Exercise Therapy Deadlift

Sport-Specific Training – A Guide to Exercise Selection

November 24, 2023

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This article seeks to help simplify the exercise selection process by providing clarity on how different exercises can aid in enhancing performance and potentially reduce injury risk.

Personal trainers Exercise Science Program design Sport-Specific Exercise Selection Joint Angle Squat

Injury Prevention for Tactical Personnel – Compiling the Evidence and Lessons Learned

July 1, 2019

Article

Musculoskeletal injuries are the primary source of disability in the United States military. With the integration of movement screens and the implementation of tactical strength and conditioning facilitators there can be success in reducing the amount of musculoskeletal injuries in the tactical populations.

TSAC Facilitators Exercise Science Program design Organization and Administration Testing and Evaluation Reducing Injuries FMS TSAC TSAC-F Injury Prevention

Population-Specific TSAC Research Column

January 12, 2024

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The purpose of the following article is to discuss current interventions surrounding prevention of musculoskeletal injury and improved physical fitness across military, fire, and police populations.

TSAC Facilitators Program design Testing and Evaluation Military Fire Police Wildland Firefighters Musculoskeletal Force Plate VO2Max

Reducing the Risk of ACL Injuries in American Football Players— Early Investment for Long-Term Gains

March 18, 2019

Article Members Only

Football is a high intensity collision based sport that has an inherent risk of injury in both competition and practice. The focus of ACL injuries and the development of injury prevention programs have been key in the development of youth athletes to keep them participating in sport with reduced risk of injury.

Coaches Exercise Technique Program design Organization and Administration

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