Comparative analysis of the effects of static isometric stretching and isometric contractions in handball
I.Y. Yotov
, D. S. Dasheva
, B. R. Zlatev
Резюме: This study investigates the relationship between stretching and isometric strength and their effects on specific force parameters. Few studies have examined their impact on particular muscle groups, especially in handball. The aim is to compare the effects of static isometric stretching and isometrics on strength characteristics in handball players. Comparing these two training methods may help identify which is more effective at enhancing handball players’ physical performance. Protocols and methods: The system is entirely wireless and utilises miniature sensors (probes) placed on the skin over targeted muscles, allowing athletes to move freely in natural settings such as running, jumping, and changing direction. The activities involved the following muscles: m. deltoideus posterior, m. deltoideus medius, m. deltoideus anterior, m. biceps brachii caput brevis, m. biceps brachii caput longum, m. triceps brachii caput laterale, m. triceps brachii caput longum, and m. brachioradialis. Additionally, three force parameters were measured: Fmax, F relative, and Fx. Results: ANOVA analysis indicates a statistically significant difference between SS8 and IC for all evaluated muscles. There are no statistically significant differences in strength indicators across the three measurements, as demonstrated by the Wilcoxon statistics. Conclusions: When comparing static stretching with isometric holds on force parameters, the data show no significant differences. For the measured muscles, there are statistically significant differences in some assessments. Isometric holds may offer greater benefits and/or fewer adverse effects. Further research should explore the effects of isometric holds combined with dynamic warm-ups on both short- and long-term performance in handball. Additional studies are required to determine how these findings can be incorporated into training practices.
Series on Biomechanics, Vol.39, No. 4 (2025), 48-57
DOI: 10.7546/SB.06.04.2025
Ключови думи: force parameters; handball; isometric contraction; muscle interaction; Static stretching
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| Дата на публикуване: 2025-12-12
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