प्रशिक्षण आवर्तिता (Periodization) के संदर्भ में, टेपरिंग (Tapering) को मुख्य रूप से किसके लिए डिज़ाइन किया गया है?

Which of the following descriptions of drug side effects in athletes are correct? (i) hGH can lead to acromegaly and cardiomyopathy; (ii) Androstenedione use is associated with a higher risk of testicular cancer; (iii) Caffeine can cause dehydration and palpitations; (iv) Narcotics use for masking pain leads to addiction.

Evaluate these statements regarding cardiovascular training effects: (i) Aerobic training significantly increases resting stroke volume; (ii) Resting heart rate decreases due to increased stroke volume; (iii) Capillarisation increases the efficiency of nutrient and oxygen delivery; (iv) Cardiac hypertrophy involves thickening of the myocardium.