EFFECTS OF TWO TRAINING MODALITIES WITH VARIED LOAD ON MUSCLE STRENGTH CHARACTERISTICS IN HEALTHY MALES
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2018, Vol 28, Issue 81
Abstract
Aim. The aim of the study was to assess the effects of changes in lower limb muscle torque moments after applying two training variants with different load distribution over subsequent days of the microcycle. Basic procedures. The study included 36 students of the University of Physical Education in Warsaw (age: 21.4 ± 1.1 years, body mass 78.4 ± 7.5 kg, body height 180.1 ± 6.1 cm), who were randomly assigned to two groups implementing different training protocols: group A (n = 18, age 21.3 ± 0.9) – a fixed number of series in the microcycle (6), and group B (n = 18, age 21.7 ± 1.2) – a variable number of series in the microcycle (4-8). Training sessions were carried out on a station consisting of a trainer in the form of an inclined plane which was equipped with a dynamometric platform allowing registration of rebound force as a function of time (integrated with the TRP5v2 programme). The training programme lasted 4 weeks, followed by a 2-week recovery phase. The effects were observed at weekly intervals, both during and 2 weeks after completion of training (8 measurements). The measurement results for muscle torque moments in different joints of the lower limbs were evaluated under static conditions (extensors and flexors in the knee and hip joints as well as flexors in the ankle joint). Data was subjected to two-way analysis of variance (2×2 ANOVA) for repeated measurements. Main findings. Post-hoc testing revealed that the interaction effect occurred only in the case of muscle torque of the knee flexors – MTKF [N×m] (F(1,36) = 3.891, η2p = 0.103, p < 0.01). There were observed effects for time in group B in the case of hip extensor muscle torque - MTHE [N × m] (F(1,36) = 3.560, η2 p = 0.420, p < 0.01) – increase by 21.0%, and ankle flexor muscle torque – MTAF [N × m] (F(1,36) = 7.314, η2p = 0.181, p < 0.01) – increase by 12.5%. In group B, the total muscle torque increase for all (11.2%) of the examined joints was almost twice as high as in group A (6.9%). Conclusions. The training protocol used in group B (modulated number of series) was more effective than the training protocol with a fixed number of series to develop muscle torque moments in the knee joint. Both training protocols showed high efficiency in the increase of muscle torque moments of the hip joint extensors and in the ankle joint, therefore, they may be recommended in training programmes optimizing the level of strength and strength-speed abilities.<br/><br/>
Authors and Affiliations
Edyta Predel, Michał Boraczyński, Tomasz Boraczyński, Magdalena Karczewska
Keywords
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