Aerosp Med Hum Perform. 2020 Oct 1;91(10):818-823. doi: 10.3357/AMHP.5622.2020.
Due to the standard collegiate academic calendar (two semesters), U.S. Air Force Reserve Officers Training Corps (ROTC) cadets have an approximate 3-mo break over the summer in which physical training (PT) is neither regulated nor required. The purpose of this investigation was to determine if significant changes in cadet physical fitness assessment (PFA) scores occur after a 3-mo summer break when training is not mandatory. Male ( 28) and female ( 10) cadets performed the PFA in April and August. Cadets were split into two groups depending on if they participated in field training over the summer [FT; 12 (men 6, women 6)] or did not [NFT; 26 (men 22, women 4)] to determine if engaging in field training had any effect on performance. Cadets performed significantly better on run time (7%), pushups (7.6%), sit-ups (5.8%), and overall composite score (3.6%) before summer break compared to after. Significant time group interactions were observed for abdominal circumference and run time. Abdominal circumference paired samples -tests indicated that while the FT group did not differ between the spring and fall time points, the NFT did. There was a main effect for time in which cadets had a significantly larger abdominal circumference in the spring compared to the fall semester. Nonmandatory physical training over summer break may significantly decrease a cadets performance on the PFA. Additionally, it appears that even the inclusion of field training for some cadets was not enough to prevent the detraining that took place over summer break.
由于标准的大学学术日历(两个学期),美国空军后备军官训练团(ROTC)学员在夏季有大约 3 个月的休息时间,在此期间既没有规定也不需要进行体能训练(PT)。本研究的目的是确定在夏季强制训练不要求的情况下,3 个月的夏季休息后学员体能评估(PFA)分数是否会发生显著变化。28 名男性和 10 名女性学员分别于 4 月和 8 月进行 PFA。学员根据是否参加夏季实地训练(FT;12 人[男性 6 人,女性 6 人])或未参加实地训练(NFT;26 人[男性 22 人,女性 4 人])分为两组,以确定参加实地训练是否对成绩有任何影响。与夏季后相比,学员在夏季前的跑步时间(7%)、俯卧撑(7.6%)、仰卧起坐(5.8%)和综合成绩(3.6%)上表现明显更好。观察到腹部周长和跑步时间的显著时间组交互作用。腹部周长配对样本检验表明,FT 组在春季和秋季时间点之间没有差异,而 NFT 组有差异。时间上有一个主要影响,学员在春季的腹部周长明显大于秋季。夏季非强制性体能训练可能会显著降低学员在 PFA 上的表现。此外,即使一些学员参加了实地训练,也似乎不足以防止夏季休息期间发生的脱训。