Author

Adriana Valenzuela

At a commercial fitness center in Lahaina, Hawaii, Adriana Valenzuela, NASM-CPT, NSCA-CSCS, trains clients with an emphasis on functional anatomy. After monitoring gym floors during college kinesiology studies, Valenzuela developed a routine of explaining muscle actions to clients mid-workout, balancing coaching with winter trips Nordic skiing on groomed forest trails.

The Length-Tension Relationship: How It Determines Muscle Force
What Is Horizontal Adduction? Definition & Muscles
How Does the Muscular System Interact With Other Systems?
What Are the 7 Steps of Muscle Contraction?
What Is Pronation Movement? Definition and Mechanics
What Is Contractile Muscle and How Does It Work?
What Muscles Are Responsible for Grip Strength?
What Is Flaccid? Understanding Muscle Tone and Flaccidity
Muscle Anatomy: Structure, Types, and Function
How Does a Chicken Wing Work? Anatomy and Function
What Are the Deep Neck Flexors and Why Are They Important?
What Are Lats Muscles? Anatomy, Function, and Exercises
What Is a Myofibril and How Does It Work?
Sliding Filament Theory of Muscle Contraction
What Is the Multifidus Muscle and Why Is It Important?
Is Your Groin a Muscle? Anatomy of the Groin Region
What Muscles Cause Upward Rotation of the Scapula?
Understanding the Gluteus Maximus: Anatomy and Function
What Does the Bicep Femoris Do? Anatomy and Function
Understanding Hip Abduction: Anatomy, Muscles, and Movement
What Muscles Produce Supination of the Forearm?
The Lumbar Spine and Pelvis: Anatomy, Function, and Health
Where Is Your Chest Wall and What Is It Made Of?
What Are Sarcomeres and How Do They Function?
What Is Skeletal Muscle Index and Why Does It Matter?
What Are Motor Units and How Do They Function?
What Body Parts Heal the Fastest and Why?
Trunk Flexion: Biomechanical and Musculoskeletal Insights
Can Women Have Pecs? The Science of Female Chest Muscles
Multinucleated Muscle: Why Skeletal Muscle Has Many Nuclei