Howe Louis P, Bampouras Theodoros M, North Jamie S, Waldron Mark
Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, UK.
School of Sport, Health and Applied Science, St Mary's University, Twickenham, London, UK.
Int J Sports Phys Ther. 2020 Feb;15(1):64-73.
The identification of asymmetrical inter-limb ankle dorsiflexion range of motion (DF ROM) has the potential to influence the course of treatment during the rehabilitation process, with limitations in ankle DF ROM potentially increasing injury risk. However, reliability for methods to identify ankle DF ROM asymmetries remain under described in the literature.
To determine the reliability of the trigonometric calculation method for measuring ankle DF ROM during the weight-bearing lunge test (WBLT) for both a single limb and the symmetry values. The secondary purpose was to establish values of ankle DF ROM asymmetry and identify the influence of leg dominance on ankle DF ROM.
Cross-sectional study.
Ankle DF ROM was measured bilaterally in 50 healthy and recreationally active participants (28 men, 22 women, age = 22 ± 4 years, height = 172.8 ± 10.8 cm, body mass 71.5 ± 15.1 kg), using the trigonometric measurement method during the WBLT. Each ankle was measured twice in a single testing session to establish within-session reliability.
Values are presented for asymmetries in DF ROM. No differences were identified between the dominant and non-dominant limb ( = 0.862). Within-session reliability for measuring a single limb was classified as 'good' (ICC = 0.98) with a minimal detectable change value of 1.7 °. For measuring ankle DF ROM asymmetry, reliability was established as 'good' (ICC = 0.85) and a minimal detectable change value of 2.1 ° was determined.
Although symmetry in ankle DF ROM may not be assumed, the magnitude of asymmetry may be less than previously reported in a population of recreationally active individuals. Discrepancies between previous research and the findings of the present study may have been impacted by differences in measurement methods. Furthermore, clinicians should be aware that the error associated with measures of asymmetry for ankle DF ROM during the WBLT is greater than that of a single limb.
2b.
识别双侧踝关节背屈活动度（DF ROM）的不对称性可能会影响康复过程中的治疗方案，踝关节DF ROM受限可能会增加受伤风险。然而，文献中对识别踝关节DF ROM不对称性方法的可靠性描述仍不充分。
确定在负重弓步试验（WBLT）中测量单肢及对称性数值时，三角计算法测量踝关节DF ROM的可靠性。次要目的是确定踝关节DF ROM不对称性的数值，并识别腿优势对踝关节DF ROM的影响。
横断面研究。
对50名健康且有运动习惯的参与者（28名男性，22名女性，年龄=22±4岁，身高=172.8±10.8cm，体重71.5±15.1kg）双侧踝关节DF ROM进行测量，在WBLT期间使用三角测量法。每个踝关节在单次测试中测量两次以确定测试内可靠性。
给出了DF ROM不对称性的数值。优势肢与非优势肢之间未发现差异（=0.862）。测量单肢时测试内可靠性被归类为“良好”（ICC=0.98），最小可检测变化值为1.7°。对于测量踝关节DF ROM不对称性，可靠性被确定为“良好”（ICC=0.85），最小可检测变化值为2.1°。
尽管不能假定踝关节DF ROM的对称性，但不对称程度可能小于先前在有运动习惯人群中报道的数值。先前研究与本研究结果之间的差异可能受到测量方法差异的影响。此外，临床医生应意识到，在WBLT期间测量踝关节DF ROM不对称性的误差大于测量单肢时的误差。
2b。
