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The effects of eccentric versus concentric resistance training on muscle strength and mass analysis.

The aim of this systematic review was to determine if eccentric exercise is superior to concentric exercise in stimulating gains in muscle strength and mass. Meta-analyses were performed for comparisons between eccentric and concentric training as means to improve muscle strength and mass. In order to determine the importance of different parameters of training, subgroup analyses of intensity of exercise, velocity of movement and mode of contraction were also performed. Twenty randomised controlled trials studies met the inclusion criteria. Meta-analyses showed that when eccentric exercise was performed at higher intensities compared with concentric training, total strength and eccentric strength increased more significantly. However, compared with concentric training, strength gains after eccentric training appeared more specific in terms of velocity and mode of contraction. Eccentric training performed at high intensities was shown to be more effective in promoting increases in muscle mass measured as muscle girth. In addition, eccentric training also showed a trend towards increased muscle cross-sectional area measured with magnetic resonance imaging or computerised tomography. Subgroup analyses suggest that the superiority of eccentric training to increase muscle strength and mass appears to be related to the higher loads developed during eccentric contractions. The specialised neural pattern of eccentric actions possibly explains the high specificity of strength gains after eccentric training. Further research is required to investigate the underlying mechanisms of this specificity and its functional significance in terms of transferability of strength gains to more complex human movements.

Healthy lunch ideas.
Don’t forget to eat your greens 🙂
At least 5 portions of a variety of fruit and vegetables every day.

Physical activity guidelines for adults aged 19 to 64.

Adults should do some type of physical activity every day. Exercise just once or twice a week can reduce the risk of heart disease or stroke.

Speak to your GP first if you have not exercised for some time, or if you have medical conditions or concerns. Make sure your activity and its intensity are appropriate for your fitness.

Adults should aim to:

Do strengthening activities that work all the major muscle groups (legs, hips, back, abdomen, chest, shoulders and arms) on at least 2 days a week
do at least 150 minutes of moderate intensity activity a week or 75 minutes of vigorous intensity activity a week
spread exercise evenly over 4 to 5 days a week, or every day
reduce time spent sitting or lying down and break up long periods of not moving with some activity
You can also achieve your weekly activity target with:

Several short sessions of very vigorous intensity activity
a mix of moderate, vigorous and very vigorous intensity activity

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Energy systems in your body used during exercise.