DiCesare Christopher A, Adams James R, Claytor Randal P, Ward Rose M, Cox Ronald H
Human Performance Laboratory, Department of Kinesiology & Health, Miami University, Oxford, Ohio, USA.
Int J Health Sci (Qassim). 2017 Apr-Jun;11(2):16-20.
The risk for cardiovascular disease is well-documented. Perhaps surprisingly, specific athletic populations, including American football players, exhibit increased risk for cardiovascular disease as presented by elevated blood pressure. There is evidence suggesting a link between muscle fiber type distribution and resting blood pressure. Acknowledging this association, it becomes important to clarify an individual's risk for developing cardiovascular disease later in adulthood. The purpose of this study was to assess football performance measures-in particular proxies for muscular power-and their effect on resting blood pressure in football athletes.
A total of 80 collegiate-level football players participated in this study. Each participant's body fat %, body mass index, waist circumference, and mean arterial pressure (MAP) were measured. Participants performed one-repetition maximums of bench press, back squat, 40-yard dash, and vertical leap, and a power index (PI) defined as the product of vertical leap and mass. Linear regressions were run between body composition variables and performance measures for all players and a subset of skill players only.
The PI was found to be positively, significantly correlated with MAP in all players ( = 0.269; = 0.035) and the skill players subset ( = 0.425; = 0.004).
The results of the present study indicate an association between muscle fiber type distribution, as indicated by muscular power capacity, and resting blood pressure.
心血管疾病的风险已有充分记录。也许令人惊讶的是，包括美国橄榄球运动员在内的特定运动员群体，由于血压升高，患心血管疾病的风险增加。有证据表明肌肉纤维类型分布与静息血压之间存在联系。认识到这种关联后，明确个体成年后期患心血管疾病的风险就变得很重要。本研究的目的是评估橄榄球运动表现指标——特别是肌肉力量的替代指标——及其对橄榄球运动员静息血压的影响。
共有80名大学水平的橄榄球运动员参与了本研究。测量了每位参与者的体脂百分比、体重指数、腰围和平均动脉压（MAP）。参与者进行了卧推、深蹲、40码冲刺和垂直纵跳的一次最大重复量测试，并计算了一个力量指数（PI），该指数定义为垂直纵跳高度与体重的乘积。对所有运动员以及仅一部分技术型运动员的身体成分变量和运动表现指标进行了线性回归分析。
在所有运动员（r = 0.269；P = 0.035）和技术型运动员子集中（r = 0.425；P = 0.004），发现PI与MAP呈正相关且具有显著性。
本研究结果表明，由肌肉力量能力所指示的肌肉纤维类型分布与静息血压之间存在关联。
