Department of Physical Therapy and Rehabilitation Sciences, College of Nursing and Health Professions, Drexel University, Philadelphia, PA.
Department of Physical Therapy, University of Delaware, Newark.
J Athl Train. 2022 May 1;57(5):470-477. doi: 10.4085/1062-6050-0135.21.
Swimmers are known for experiencing high training loads and a high incidence of overuse injuries, but few researchers have investigated the relationship between the two at the collegiate level.
To determine the association between workload and noncontact musculoskeletal injury in collegiate swimmers.
Prospective cohort study.
College natatorium.
A total of 37 National Collegiate Athletic Association Division III swimmers, 26 uninjured (age = 19 years [interquartile range = 3 years], height = 175 ± 11 cm, mass = 70.2 ± 10 kg) and 11 injured (age = 19 years [interquartile range = 3 years], height = 173 ± 9 cm, mass = 69.4 ± 13.5 kg) individuals.
MAIN OUTCOME MEASURE(S): Logistic regression using generalized estimating equations was conducted to calculate odds ratios (ORs) with 95% CIs for injury relative to high workloads and high acute:chronic workload ratio (ACWRs). Injury rates for several ranges of workloads and ACWRs were also calculated.
A total of 11 participants (29.7%) sustained 12 injuries, with 7 injuries occurring during the participants' winter training trip. Injury was associated with high acute workloads (OR = 27.1; 95% CI = 8.2, 89.8) and high ACWRs (OR = 25.1; 95% CI = 7.7, 81.4) but not high chronic (OR = 2.6; 95% CI = 0.3, 20.0) or overall (OR = 1.00; 95% CI = 0.99, 1.01) workloads. High acute workloads (>37.2 km/wk) and ACWRs (>1.56) increased the injury rate from ≤1% to 15% and 14%, respectively, compared with all lower acute workloads and ACWRs.
Collegiate swimmers tolerated high workloads spread out during the season. However, caution should be used when prescribing high acute workloads and high ACWRs (eg, winter training trip) because of the increased odds of injury.
众所周知，游泳运动员的训练负荷较高，过度使用损伤的发生率也较高，但很少有研究人员在大学水平上调查两者之间的关系。
确定大学生游泳运动员的工作量与非接触性肌肉骨骼损伤之间的关联。
前瞻性队列研究。
大学游泳馆。
共有 37 名美国全国大学体育协会第三分部游泳运动员，26 名未受伤（年龄= 19 岁[四分位数范围= 3 岁]，身高= 175±11cm，体重= 70.2±10kg）和 11 名受伤（年龄= 19 岁[四分位数范围= 3 岁]，身高= 173±9cm，体重= 69.4±13.5kg）的个体。
使用广义估计方程的逻辑回归计算相对于高工作量和高急性/慢性工作量比（ACWR）的受伤比值比（OR）及其 95%置信区间（CI）。还计算了几个工作量和 ACWR 范围的受伤率。
共有 11 名参与者（29.7%）遭受 12 次损伤，其中 7 次损伤发生在参与者的冬季训练旅行中。受伤与高急性工作量（OR=27.1；95%CI=8.2，89.8）和高 ACWR（OR=25.1；95%CI=7.7，81.4）相关，但与高慢性（OR=2.6；95%CI=0.3，20.0）或总工作量（OR=1.00；95%CI=0.99，1.01）无关。高急性工作量（>37.2km/wk）和 ACWR（>1.56）使高急性工作量和 ACWR 分别从≤1%增加到 15%和 14%，而所有较低的急性工作量和 ACWR 则低于 1%。
大学生游泳运动员可以耐受赛季中较高的工作量。然而，当规定高急性工作量和高 ACWR（例如，冬季训练旅行）时，应谨慎使用，因为受伤的几率会增加。
