1 A short chain of amino acids is referred to as a peptide (or oligopeptide); a long chain of many (hundreds or thousands) amino acids is referred to as a polypeptide. 2  Each cell makes thousands of different KINDS of proteins.  Different kinds of proteins are composed of a different sequence of amino acids.
SHARE SHARE TWEET EMAIL. Weight training can help improve your endurance and speed as a long distance runner. It can also help you manage your weight by increasing your body's metabolism, a difficult task without strength training.To mix long distance running and weight training, you need careful planning and caution, so you can avoid burnout through overtraining.For best possible results, your program should challenge your body without causing any major pain.HARE SHARE TWEET EMAIL. Weight training can help improve your endurance and speed as a long distance runner. It can also help you manage your weight by increasing your body's metabolism, a difficult task without strength training.
In most fartlek training sessions intervals are kept relatively short and frequent. Anything too long simply becomes more like interval training. Each interval might range from 10 seconds up to 5 minutes for example. For long distance runners (anything from 1500m to 10k) more structured sessions are beneficial.