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NSCA’s Coaching Podcast, Season 6 Episode 9: Lacey Jahn
Hear from Lacey Jahn, Head Strength and Conditioning Coach for the United States Marine Corps East School of Infantry. Jahn shares her unusual path into strength and conditioning with NSCA Coaching and Sport Science Program Manager, Eric McMahon, including stops in curriculum development and working as a lifeguard. Learn more about tactical strength and conditioning jobs, athletic qualities as they relate tactical performance in the military, and the how to approach attending strength and conditioning education events as a young coach.
You can reach out to Lacey on Instagram: @laceylyrla | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs
Coaches Professional Development
Nutrition Research Column – January 2025 – Does Creatine Monohydrate Help Optimize Occupational Performance Outcomes?
July 11, 2025
This column from TSAC Report 76, examines the performance benefits of supplementing creatine monohydrate for tactical athletes. Visit NSCA online to learn about nutrition, and performance fitness.
TSAC Facilitators Exercise Science Nutrition Testing and Evaluation Client Consultation|Assessment Safety Basic Pathophysiology and Science of Health Status or Condition and Disorder or Disease Professional Development Protein Carbohydrates Tactical Personnel Athletic Performance Supplements Creatine Occupational Performance Nutrition
High School Sports and Strength and Conditioning – Implications for Tactical Organizations
February 26, 2021
This article explores the concept of how lifestyle behaviors encouraged at the high school-level could affect fitness during adulthood, with a focus on both sport and strength and conditioning participation.
TSAC Facilitators Program design Law Enforcement Academy Sports Recruits TSAC-F Motivation hs-coaching
NSCA Announces 2025 Election Results
The National Strength and Conditioning Association (NSCA) announces the results of its 2025 Elections, as selected by NSCA Members
Tactical Training and the Menstrual Cycle – From the Field Experience from Naval Special Operations Training
April 8, 2022
This article serves to educate people about the menstrual cycle in the tactical female population. It provides a framework for how to work through the phases of menstruation to increase training response, and thus, overall success in military training.
TSAC Facilitators Exercise Science Program design Basic Pathophysiology and Science of Health Status or Condition and Disorder or Disease Special Forces Menstrual Cycle Hormones Premenstrual Syndrome
Biomechanical Effects of Loaded Marching and Resulting Training Recommendations
February 13, 2026
This TSAC Report article highlights ruck performance for tactical athletes with key insights on load carriage biomechanics, gait changes, and training strategies to reduce injury. Visit NSCA online to learn more about military strength training.
TSAC Facilitators Exercise Science Exercise Technique Program design Organization and Administration Testing and Evaluation Safety Basic Pathophysiology and Science of Health Status or Condition and Disorder or Disease Professional Development Injury Prevention Exercise Research Aerobic Conditioning Combat Readiness Ground Reaction Force (GRF) Endurance Training Lower-body Workout Biomechanics
Performance Under Stress – Implications for Tactical Personnel
March 10, 2023
This article discusses performance under stress, as well as factors influencing this performance in tactical personnel.
TSAC Facilitators Exercise Science Tactical Personnel Stress Emergency Responders Cognition Military
TSAC Research Column – July 2021
April 29, 2022
This article is part of a continuing series of tactical strength and conditioning (TSAC) research reviews. It is designed to bring awareness to new research findings of relevance to tactical strength and conditioning communities.
TSAC Facilitators Exercise Science Program design Testing and Evaluation Firefighters Police Officers Load Carry Age Soldiers Fitness Field Test Change of Direction
Periodization Approach Utilizing Progressive Overload Method for Physical Training Program in ROTC Cadets
August 1, 2017
The Physical Readiness Training Manual includes many exercises intended to keep military personnel in optimal physical condition while staying at a low risk to injury. Additionally, the application of progressive overload may be beneficial to periodization programming in ROTC cadet preparation for the Army Physical Fitness Test.
TSAC Facilitators Program design periodization TSAC-F TSAC ROTC progressive overload
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