Gerlach Kristen E, Burton Harold W, Dorn Joan M, Leddy John J, Horvath Peter J
Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, NY, USA.
J Int Soc Sports Nutr. 2008 Jan 3;5:1. doi: 10.1186/1550-2783-5-1.
Our purpose was to determine the relationship between energy intake, energy availability, dietary fat and lower extremity injury in adult female runners. We hypothesized that runners who develop overuse running-related injuries have lower energy intakes, lower energy availability and lower fat intake compared to non-injured runners.
Eighty-six female subjects, running a minimum of 20 miles/week, completed a food frequency questionnaire and informed us about injury incidence over the next year.
Injured runners had significantly lower intakes of total fat (63 +/- 20 vs. 80 +/- 50 g/d) and percentage of kilocalories from fat (27 +/- 5 vs. 30 +/- 8 %) compared with non-injured runners. A logistic regression analysis found that fat intake was the best dietary predictor, correctly identifying 64% of future injuries. Lower energy intake and lower energy availability approached, but did not reach, a significant association with overuse injury in this study.
Fat intake is likely associated with injury risk in female runners. By documenting these associations, better strategies can be developed to reduce running injuries in women.
我们的目的是确定成年女性跑步者的能量摄入、能量可利用性、膳食脂肪与下肢损伤之间的关系。我们假设，与未受伤的跑步者相比，发生过度使用性跑步相关损伤的跑步者能量摄入更低、能量可利用性更低且脂肪摄入量更低。
八十六名女性受试者，每周至少跑20英里，完成了一份食物频率问卷，并告知我们她们在接下来一年中的受伤发生率。
与未受伤的跑步者相比，受伤的跑步者总脂肪摄入量（63±20克/天对80±50克/天）和来自脂肪的千卡百分比（27±5%对30±8%）显著更低。逻辑回归分析发现，脂肪摄入量是最佳的饮食预测指标，能正确识别64%的未来损伤。在本研究中，较低的能量摄入和较低的能量可利用性接近但未达到与过度使用性损伤的显著关联。
脂肪摄入量可能与女性跑步者的损伤风险相关。通过记录这些关联，可以制定更好的策略来减少女性跑步损伤。
