Department of Statistics and Probability, Michigan State University, East Lansing, MI 48824, USA.
Department of Kinesiology, Michigan State University, East Lansing, MI 48824, USA.
Int J Environ Res Public Health. 2023 Jan 22;20(3):2033. doi: 10.3390/ijerph20032033.
Grip strength (GS) is correlated with major muscle group strength; weakness and asymmetry in older adults are predictive of future disease and functional limitation risk. GS at different ages and hand symmetry for Olympic-style weightlifters and their association with performance have not been established. GS was measured in 164 athletes participating in the 2022 World Master Weightlifting Championships. The objectives wereto study the magnitude of the age-associated decline in GS in weightlifters and the association of GS with weightlifting performance. Hand symmetry was considered as a potential factor in successful lifts. Ages ranged from 35 to 90 (mean 53 years). Participants reported weekly training averages of 8.3 h of weightlifting and 4.1 additional hours of physical activities. The age-associated decline in GS was less steep than the decline in weightlifting performance. GS was lower in weightlifters compared to athletes in other sports that require grasping or force application (t = -2.53, =0.053 for females; t = -2.62, = 0.029 for males). The rate of decline was similar across different populations (weightlifters, other athletes, community-dwelling adults). Height and age were associated with GS, but performance level and training hours were not. GS was associated with snatch performance (t = 3.56, < 0.001) but not with clean and jerk (t = 0.48, = 0.633).
握力（GS）与主要肌肉群力量相关；老年人的力量减弱和不对称性可预测未来的疾病和功能受限风险。不同年龄的 GS 和奥林匹克举重运动员的手部对称性及其与表现的关系尚未确定。我们测量了参加 2022 年世界大师举重锦标赛的 164 名运动员的 GS。目的是研究举重运动员 GS 随年龄增长的下降幅度，以及 GS 与举重表现的关系。手部对称性被认为是成功举重的一个潜在因素。年龄范围为 35 至 90 岁（平均 53 岁）。参与者报告每周举重平均训练时间为 8.3 小时，其他体育活动为 4.1 小时。GS 随年龄的下降幅度不如举重表现下降得那么陡峭。与需要抓握或力量应用的其他运动项目的运动员相比，举重运动员的 GS 较低（女性 t = -2.53，= 0.053；男性 t = -2.62，= 0.029）。不同人群（举重运动员、其他运动员、社区居住成年人）的下降率相似。身高和年龄与 GS 相关，但表现水平和训练时间无关。GS 与抓举表现相关（t = 3.56，< 0.001），但与挺举无关（t = 0.48，= 0.633）。
