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Showing posts from November, 2026

What Happens to Your Muscles During Resistance Training at a Cellular Level?

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Have you ever finished a strength training session, looked at your tired arms or legs, and wondered what is actually happening inside your body? There is a lot more going on than simply lifting weights and feeling sore afterwards! When learning through a Personal Training course in Brisbane , understanding what happens inside the muscles can help us become better trainers and explain exercise to clients in a way they can actually understand. So, let us take a closer look at what happens beneath the skin when we lift weights, use resistance bands or work against our own body weight. It is pretty interesting stuff! Your Muscle Fibres Get to Work When we perform resistance exercises, our muscles have to work against an external force. Think about doing a squat, pushing a dumbbell overhead or completing a push-up. During these movements, muscle fibres are activated to help produce the force needed to complete the exercise. Inside each muscle fibre are tiny structures called myofibrils. The...