How Do Muscles Contract?

Muscle contraction occurs when actin and myosin filaments slide past each other. Thus, resulting in the shortening of a sarcomere.

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Neural Adaptations to Strength Training

The neural adaptations of strength training refers to improvements in motor unit recruitment and rate coding. Click here to learn more!

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Satellite Cells and Muscle Regeneration

Muscle satellite cells are stem cells found between the external lamina and sarcolemma. They play a crucial role in muscle fiber regeneration.

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The Push/Pull/Legs Training Split – What Are The Pros And Cons?

The push/pull/legs split refers to dividing your weekly training into push (chest, shoulders, triceps), pull (back, biceps), and leg (quads, glutes, hamstrings, calves) days. It…

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Muscle Fiber Recruitment: The Size Principle

The size principle means that motor units (motor neuron and muscle fibers innervated by it) are activated in an order from smallest to largest.

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Muscle Fiber Recruitment: The All-Or-None Law

The all-or-none law states that if a stimulus exceeds an activation threshold, all the muscle fibers in a motor unit are simultaneously activated, and at full force.

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The Upper Body/Lower Body Split – What Are The Pros And Cons?

The upper body/lower body split divides your muscles into two groups, allowing you to focus on specific muscles on different days of the week. Here's what you need to know!

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Periodization Of Training – A Full Guide

Periodization refers to dividing your yearly conditioning program into smaller blocks (microcycle, mesocycle, and macrocycle). Each phase has a specific training focus.

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Ultimate Guide To Workout Splits – Organize Your Training Better

Workout splits refer to different ways of dividing your exercises throughout the week. There are several ways to do this. Here are the most common ones!

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Target Heart Rate Zones Explained – How To Use Them Correctly

Heart rate zones can be used to determine optimal training intensity. They are calculated as percentages of your maximum heart rate.

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