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Abstract: The Maasai are known for their unique customs, including dancing, singing, and jumping. The tribe’s traditional jumping rituals, performed by young warriors called ‘Morani,’ demonstrate their strength and skill through repetitive hops, often lasting several hours. These jumps are comparable to the countermovement jumps (CMJ) of elite Western athletes. This study compared different types of jumps (CMJ), squat jump (SJ) and repetitive hops) among three groups: (a) Maasai (n = 30), (b) Slovenian high-jump athletes and sprinters (n = 20), and (c) non-athletes in Slovenia (n = 20). Participants were male, aged 16–35. The My Jump 2 app was used to measure jump height. Results showed that during CMJ, the Maasai averaged 38.1 cm ± 7.3 cm; athletes 52.46 cm ± 9.07 cm; non-athletes 33.72 cm ± 7.22 cm. In the SJ, the Maasai averaged 35.87 cm ± 6.59 cm; athletes 49.74 cm ± 7.3 cm; non-athletes 32.57 cm ± 6.21 cm. For repetitive hops, the Maasai averaged 36.2 cm ± 7.75 cm; athletes 35.93 cm ± 5.98 cm; non-athletes 20.98 cm ± 7.07 cm. Athletes showed higher jump heights in CMJ and SJ compared to the Maasai (p < 0.001, d = 1.28; p < 0.001, d = 2.00) and non-athletes (p < 0.001, d = 2.29; p < 0.001, d = 2.53). However, in repetitive hops, the Maasai performed similarly to athletes (p = 0.991, d = 0.04), while non-athletes had significantly lower results (p < 0.001, d = 2.05). These findings suggest that the Maasai’s cultural practices enhance musculoskeletal adaptation from an early age, emphasizing that proficiency is greatest in regularly practiced tasks, such as repetitive jumps and hops.
Keywords: Maasai, athletes, jumps
Published in RUP: 01.03.2026; Views: 425; Downloads: 1
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Abstract: This study aimed to compare isometric strength, range of motion (RoM), and strength ratios of shoulder internal and external rotators between female volleyball and hand ball players Twenty-five volleyball players (age = 21.8 ± 4.8 years, height = 178.5 ± 7.1 cm, mass = 69.3 ± 7.7 kg) and twenty-four handball players (age = 19.5 ± 2.9 years, height = 169.7 ± 6.4 cm, mass = 67.6 ± 8.4 kg), all competing in the Slovenian 1st national league, participated. Maximal isometric strength and passive RoM of internal and external rotation were measured bilaterally using a handheld dynamometer and goniometer, respectively. A significant group × side interaction was observed for internal rotation RoM (F = 5.41; p = 0.024; η2 = 0.10), with volleyball players showing lower RoM on the dominant side (p = 0.001; d = 0.89), but this was not the case for handball players (p = 0.304). External rotation strength also showed a significant interaction (F = 9.34; p = 0.004; η2 = 0.17); volleyball players were stronger in the non-dominant arm (p = 0.033), while handball players were stronger in the dominant arm (p = 0.041). The external-to-internal rotation strength ratio was significantly lower on the dominant side in volleyball players compared to handball players (p = 0.047; d = 0.59). Findings suggest sport-specific adaptations and asymmetries in shoulder function, emphasizing the need for sport-specific and individually tailored injury prevention strategies. Volleyball players, in particular, may benefit from targeted strengthening of external rotators and flexibility training to address imbalances.
Keywords: isometric testing, joint asymmetry, injury prevention, overhead athletes, muscle balance
Published in RUP: 31.07.2025; Views: 973; Downloads: 26
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Keywords: skeletal muscles, muscle fibers, contractile properties, body-builders, power athletes
Published in RUP: 08.08.2016; Views: 6461; Downloads: 211
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