This study aimed to determine whether velocity of downward (eccentric:ECC) phase affect jump height, mean and peak velocity, power, force, and rate of force development (RFD) of upward (concentric:CON) phase during jump squat (JSQ) with moderate load. Fifteen university rugby players were performed JSQ conducted with ECC velocity of 2 seconds (ECC2s) and their maximum velocity (ECCMax) at 30% and 50% load of squat one repetition maximum (SQ1RM). JSQ with ECCMax showed significantly higher values of jumping height, mean and peak velocity, power, force, and RFD, in comparison with JSQ with ECC2s. These results suggest that during JSQ with a moderate load, performance of CON phase was revealed to be enhanced with faster velocity of ECC phase.

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In this report, we focus on the case of an Olympic medalist in women's weightlifting competition, and report on the circumstances that led to her winning an Olympic medal in terms of her performance, mindset, and relationship with her coach. The subjects were athletes who won medals at the London Olympic Games and her coach. The analysis used a semi-structured interview and a trajectory equifinality model. As a result, it was suggested that the attitude that can create a relaxed state in a nervousness may have been a factor in winning medals at international competitions.

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In this report, we focus on the case of an Olympic medalist in women's weightlifting competition, and report on the circumstances that led to her winning an Olympic medal in terms of her physical, technique, performance, mindset, and relationship with her coach. The subjects were athletes who won medals at the Rio de Janeiro Games and her coach. The analysis used a semistructured interview and a trajectory equifinality model. As a result, top athletes who have reached their peak need guidance that emphasizes the qualitative aspects of rest and training. In addition, it was suggested that having psychological elements such as " To make up one's mind ", "fighting spirit " and "confidence " may be necessary to win a medal at the Olympics.

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