strength training

Muscle power

Muscle power

What determines the power a muscle can generate? A number of factors including:  1. The position of the muscle relative to the length-tension relationship 2. Number and size of motor units i.e. #number of cross-bridges in parallel (ideal for force) 3. Length of the muscle fibres i.e. # of cross-bridges in series (ideal for velocity)(…)

Do brand new muscle fibres grow following resistance training?

Do brand new muscle fibres grow following resistance training?

Does muscle hyperplasia (increased muscle number cells) occur following resistance training in humans? Probably not.  Data suggests that when an average muscle area is divided by the average muscle fibre area (taken from muscle biopsy), the cross-sectional area of muscle is more related to the are of the muscle fibres than the muscle fibre size(…)

Can muscles get bigger with resistance training?

Can muscles get bigger with resistance training?

Does resistance training lead to an increase in muscle fibre size? It appears so.  The cross-sectional area of muscle fibres can increase by up to 70% following resistance training. Similarly, Seynnes et al. reported a 5% increase in the cross-sectional area of quadriceps (thigh) muscles after four weeks of resistance training. It appears that a(…)

Resistance training in children and adolescents

Resistance training in children and adolescents

Should children and adolescents resistance train? The research says yes.  The Canadian Society for Exercise Physiology have published a position stand on this topic and raise the following points in their abstract: – There is no minimum age for resistance training in children – Resistance training should include a proper warm-up, cool-down and appropriate exercises(…)