Department of Physical Education, Federal University of de Juiz de Fora, Juiz de Fora, Brazi.
Center of Health Sciences and Sports, Department of Physical Education, Santa Catarina State University, Florianópolis, Brazil.
J Strength Cond Res. 2019 Dec;33(12):3392-3399. doi: 10.1519/JSC.0000000000002404.
Horta, TAG, Bara Filho, MG, Coimbra, DR, Miranda, R, and Werneck, FZ. Training load, physical performance, biochemical markers, and psychological stress during a short preparatory period in Brazilian elite male volleyball players. J Strength Cond Res 33(12): 3392-3399, 2019-The aim of this study was to assess the relationship between training load (TL) and physical performance, biochemical markers, and psychological stress during a short preparatory period (SPP) in Brazilian elite male volleyball players. Twelve volleyball players from a team competing in the Brazilian Men's Volleyball Super League were enrolled (26.9 ± 4.6 years). Countermovement jump (CMJ), creatine kinase (CK), testosterone (T), cortisol (Cr), T/Cr ratio, and Recovery and Stress Questionnaire for athletes (RESTQ-Sport) were collected at baseline, after second, fourth, and sixth week. Training load was quantified daily using the rating of perceived exertion. Differences were noted between total weekly training load (TWTL) (F3,33 = 50.907; p = 0.0001), CK (F3,33 = 16.157; p = 0.0001), and T (F3,33 = 3.283; p = 0.03). No differences were seen in CMJ (F3,33 = 1.821; p = 0.16), Cr (F3,33 = 2.409; p = 0.08), or T/Cr ratio (F3,33 = 1.527; p = 0.23). The RESTQ-Sport demonstrated differences between moments in social stress (F3,33 = 2.297; p = 0.04; η = 0.25), success (F3,33 = 4.350; p = 0.01; η = 0.19), general well-being (F3,33 = 4.465; p = 0.01; η = 0.36), and injury (F3,33 = 2.792; p = 0.05; η = 0.62). The results showed a significant correlations of small to moderate magnitude between TWTL and CK (r = 0.32; p = 0.05). In conclusion, a short PP in volleyball leads to increased TL, CK level, and psychological stress. Training load was related with the increase of CK, suggesting muscle damage without increased physical performance.
霍塔、塔格、巴雷罗·菲尔霍、MG、科英布拉、DR、米兰达、R 和韦内克，FZ。在巴西精英男排运动员的短期准备期内，训练负荷、身体表现、生化标志物和心理压力之间的关系。J 力量与调理研究 33(12)：3392-3399，2019 年-本研究旨在评估巴西男排精英运动员短期准备期（SPP）内训练负荷（TL）与身体表现、生化标志物和心理压力之间的关系。招募了一支参加巴西男子排球超级联赛的球队的 12 名排球运动员（26.9±4.6 岁）。在基线、第 2、4 和 6 周时，分别采集了纵跳（CMJ）、肌酸激酶（CK）、睾酮（T）、皮质醇（Cr）、T/Cr 比值和运动员恢复与应激问卷（RESTQ-Sport）。使用感知用力量表每天量化训练负荷。总周训练负荷（TWTL）（F3,33 = 50.907；p = 0.0001）、CK（F3,33 = 16.157；p = 0.0001）和 T（F3,33 = 3.283；p = 0.03）之间存在差异。CMJ（F3,33 = 1.821；p = 0.16）、Cr（F3,33 = 2.409；p = 0.08）或 T/Cr 比值（F3,33 = 1.527；p = 0.23）未见差异。RESTQ-Sport 在社会压力（F3,33 = 2.297；p = 0.04；η=0.25）、成功（F3,33 = 4.350；p = 0.01；η=0.19）、整体幸福感（F3,33 = 4.465；p = 0.01；η=0.36）和受伤（F3,33 = 2.792；p = 0.05；η=0.62）方面存在差异。结果显示，TWTL 与 CK 之间存在小到中等强度的显著相关性（r = 0.32；p = 0.05）。总之，排球的短期 PP 会导致 TL、CK 水平和心理压力增加。训练负荷与 CK 的增加有关，表明肌肉损伤而没有增加身体表现。
