Assunção Carvalho Layanna Cibelle de Sousa, de Freitas Marcelo Conrado, Silva Alexandre Sergio, Biasoto Aline Camarão Telles, Martins Maria do Carmo de Carvalho E, de Moura Rayane Carvalho, Brito Ana Karolinne da Silva, Silva Acacio Salvador Veras E, Ribeiro Sérgio Luiz Galan, Rossi Fabrício Eduardo, Dos Santos Marcos Antônio Pereira
Department of Nutrition, Federal University of Piauí, Teresina, Brazil.
Skeletal Muscle Assessment Laboratory, Department of Physical Education, School of Technology and Sciences, São Paulo State University, São Paulo, Brazil.
Front Physiol. 2018 Oct 31;9:1508. doi: 10.3389/fphys.2018.01508. eCollection 2018.
The purpose of this study was to investigate the effects of (SC) nectar supplementation on performance, markers of oxidative stress, muscle damage, and psychological response in Handball players. Twenty-five young athletes (age = 18.6 ± 2.4 years) from an elite high school national level Brazilian Handball team were randomized into two study groups: SC/Jamelon nectar (SC, = 12) and placebo ( = 13). The subjects ingested 10 mL/kg/day of Jamelon nectar or placebo 30 min before the training sessions and immediately after training cessation, for 28 days. Body mass index (BMI) and percentage of fat mass were assessed using bioelectrical impedance analysis. Biomarkers of oxidative stress were measured by lipid peroxidation, which was quantified by malondialdehyde (MDA). Total antioxidant capacity (TAC), creatine kinase (CK) activity, and lactate dehydrogenase (LDH) were determined. The 20 m shuttle run test, vertical jump, and running anaerobic sprint test were assessed to verify performance and the fatigue index was calculated. The Profile of Mood States (POMS) questionnaire was used for psychological evaluation. Both groups demonstrated improved vertical jump performance and a decreased fatigue index over time but without significant differences between them regarding performance. There was statistically significance only for SC in CK, LDH, and MDA, and TAC was greater in the SC compared to placebo. Furthermore, only the SC group demonstrated improved mood disturbance and confusion after the intervention. In conclusion, the present study suggests that SC nectar supplementation reduced biomarkers of oxidative stress and muscle damage, and improved psychological response in young handball players.
本研究的目的是调查补充（SC）花蜜对巴西国家高水平高中手球队运动员的运动表现、氧化应激标志物、肌肉损伤和心理反应的影响。来自巴西国家高水平高中手球队的25名年轻运动员（年龄 = 18.6 ± 2.4岁）被随机分为两个研究组：SC/哈梅隆花蜜组（SC，n = 12）和安慰剂组（n = 13）。受试者在训练前30分钟和训练结束后立即摄入10 mL/kg/天的哈梅隆花蜜或安慰剂，持续28天。使用生物电阻抗分析评估体重指数（BMI）和体脂百分比。通过脂质过氧化测量氧化应激生物标志物，脂质过氧化通过丙二醛（MDA）定量。测定总抗氧化能力（TAC）、肌酸激酶（CK）活性和乳酸脱氢酶（LDH）。进行20米穿梭跑测试、垂直跳跃测试和跑步无氧冲刺测试以评估运动表现，并计算疲劳指数。使用情绪状态量表（POMS）问卷进行心理评估。随着时间的推移，两组的垂直跳跃表现均有所改善，疲劳指数均有所下降，但在运动表现方面两组之间无显著差异。仅SC组的CK、LDH和MDA有统计学意义，且SC组的TAC高于安慰剂组。此外，仅SC组在干预后情绪障碍和困惑有所改善。总之，本研究表明，补充SC花蜜可降低年轻手球运动员的氧化应激和肌肉损伤生物标志物，并改善心理反应。
