Postgraduate A.V. Losev^1
1Surgut State University, Surgut

Objective of the study was to rate benefits of the wavelike strength training components in volleyball training micro-cycles by comparative analysis of the pre-and post-training strength rates, with the 8-week training including daily and weekly wavelike intensity variation periods. Subject to the study were 20 volleyball players split up into two groups. Group 1 and Group 2 were trained as required by the daily and weekly wavelike intensity variation models, respectively. The strength building progress was rated by a single-attempt maximum (SAM) test, with the trainees making SAM in the following exercises: leg press; Scott bench press; training simulator assisted legs flexions; training simulator assisted legs extensions; bench press; and arms extension sitting on crossover. Every trainee was offered 3 attempts to find the best weight in each test, with the individual best result registered. The study data showed benefits of the daily and weekly strength training intensity variations as verified by the progress made in the tests. The strength progress due to the weighted training practices was particularly high at the beginner stage (weeks 1 through 4) as a result of the neuron adaptation with (1) expansion of the motor units employed; (2) growing frequency of the impulses; and (3) improvements in the inter-muscular coordination patterns. Later on (weeks 5 through 8), the strength building progress was secured by the muscle growth process.

Keywords: strength training, training, volleyball, periodization.

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