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首页> 外文期刊>Journal of athletic training >Cooling of Lower Extremity Muscles According to Subcutaneous Tissue Thickness.
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Cooling of Lower Extremity Muscles According to Subcutaneous Tissue Thickness.

机译：根据皮下组织厚度冷却下肢肌肉。

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When using an ice bag, previous researchers recommended cooling times based on the amount of subcutaneous tissue. Unfortunately, many clinicians are unaware of these recommendations or whether they can be applied to other muscles. To examine if muscles of the lower extremity cool similarly based on recommended cooling times. Crossover study. Athletic training laboratory. Fourteen healthy participants volunteered (8 men, 6 women; age = 21.1 ± 2.2 years, height = 174.2 ± 4.5 cm, weight = 74.0 ± 7.5 kg). Subcutaneous tissue thickness was measured at the largest girth of the thigh, medial gastrocnemius, and medial hamstring. Participants were randomized to have either the rectus femoris or medial gastrocnemius and medial hamstring tested first. Using sterile techniques, the examiner inserted a thermocouple 1 cm into the muscle after accounting for subcutaneous tissue thickness. After the temperature stabilized, a 750-g ice bag was applied for 10 to 60 minutes to the area(s) for the recommended length of time based on subcutaneous adipose thickness (0 to 5 mm [10 minutes]; 5.5 to 10 mm (25 minutes]; 10.5 to 15 mm [40 minutes]; 15.5 to 20 mm [60 minutes)]. After the ice bag was removed, temperature was monitored for 30 minutes. At least 1 week later, each participant returned to complete testing of the other muscle(s). Intramuscular temperature (°C) at baseline, end of treatment time (0 minutes), and posttreatment recovery (10, 20, and 30 minutes postintervention). At the end of treatment, temperature did not differ by subcutaneous tissue thickness (10 minutes = 29.0°C ± 3.8°C, 25 minutes = 28.7°C ± 3.2°C, 40 minutes = 28.7°C ± 6.0°C, 60 minutes = 30.0°C ± 2.9°C) or muscle (rectus femoris = 30.1°C ± 3.8°C, gastrocnemius = 28.6°C ± 5.4°C, hamstrings = 28.1°C ± 2.5°C). No significant interaction was present for subcutaneous tissue thickness or muscle ( P ≥ .126). Lower extremity muscles seemed to cool similarly based on the recommended cooling times for subcutaneous tissue thickness. Clinicians should move away from standardized treatment times and adjust the amount of cooling time by ice-bag application based on subcutaneous tissue thickness.
机译：使用冰袋时，先前的研究人员建议基于皮下组织的量的冷却时间。不幸的是，许多临床医生都没有意识到这些建议或者是否可以应用于其他肌肉。根据推荐的冷却时间检查下肢的肌肉是否同样冷却。交叉研究。运动训练实验室。十四名健康与会者自愿（8名男子，6名女性;年龄= 21.1±2.2岁，身高= 174.2±4.5厘米，重量= 74.0±7.5千克）。在大腿，内侧腓肠肌和内侧腿筋的最大周长下测量皮下组织厚度。参与者被随机分配给Recetus股骨疮或内侧腓肠肌和先进的腿筋先测试。使用无菌技术，检查器在占皮下组织厚度后将热电偶1厘米插入肌肉。在稳定温度后，基于皮下脂肪厚度（0至5mm [10分钟]，将750g冰袋施加10至60分钟到区域，以进行推荐的时间长度（0至5mm]; 5.5至10 mm（ 25分钟]; 10.5至15mm [40分钟]; 15.5至20mm [60分钟）]。除了冰袋后，监测温度30分钟。至少1周后，每个参与者都返回完成测试另一个肌肉。基线的肌内温度（℃），治疗时间结束（0分钟）和后处理恢复（10,20,20和30分钟后切割）。在治疗结束时，温度没有差异皮下组织厚度（10分钟= 29.0°C±3.8℃，25分钟= 28.7°C±3.2℃，40分钟= 28.7°C±6.0°C，60分钟= 30.0°C±2.9°C）或肌肉（直肠股骨= 30.1°C±3.8°C，Gastrocnemius = 28.6°C±5.4°C，Hamstrings = 28.1°C±2.5°C）。皮下组织厚度或肌肉没有显着的相互作用（p≥.126） 。基于推荐的冷却时间，下肢肌肉似乎类似于皮下组织厚度的推荐冷却时间。临床医生应远离标准化的处理时间，并根据皮下组织厚度通过冰袋施用调整冷却时间的量。

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