If you use a weight that will make you fail between 30 and 40 seconds then you found your ideal weight, if you’re failing at 20 seconds you can be sure that weight is too heavy.
यदि तपाई सोच्नु हुन्छ कि २०–३० वर्षको उमेर मात्र कामोत्तेजनाका लागि उत्तम समय हो, त्यसो हो भने तपाई गलत हुनुहुन्छ ।