8. Ahmed has chosen to start circuit training in order to develop his muscular strength for rugby. Explain the advantages of choosing circuit training as opposed to using resistance machines. How can Ahmed apply the principle of progressive overload to his training?

Resistance training is often confused with weight training, but it is not always ... their fitness regime in order to improve power and strength on the rugby pitch. ... Studies have shown that strength training can benefit the heart, improve .

Explanation:

answer(b) keep oxygenated and deoxygenated blood separate;

during longer space exploration trips, crewmembers may develop vision impairment risks and short-term cardiac atrophy or a decrease in the size, strength, weight, and activity of the heart during space flight because they can experience microgravity. in addition, the long-term medical condition is loss of bone mineral density and radiation exposure.