Johnson D J, Leider F E
Percept Mot Skills. 1977 Feb;44(1):323-6. doi: 10.2466/pms.1977.44.1.323.
12 female college students participated in a repeated-measures experiment, receiving an experimental treatment and a control treatment. The former was a 30-min. cold bath to the forearm while the control was a simolar 30-min. period without the cold bath. Subjects' maximum handgrip strength was measured 11 times, immediately prior to treatment, immediately following treatment, and then every 20 min. for 3 hr. The subjects were tested at the same time of the day, on the same day of the week, for two consecutive weeks. Grip strength was significantly decreased immediately following the experimental treatment below pre-treatment measures and post-treatment measures for the control session. Grip strength during the experimental session significantly increased at 80 min. post-treatment when compared to the strength measures for the control at the same time interval or when compared to pre-treatment measures for either treatment. The strength measures for the two treatments remained significantly different over the rest of the testing occasions.
12名女大学生参与了一项重复测量实验，接受了一种实验性治疗和一种对照治疗。前者是对前臂进行30分钟的冷水浴，而对照则是在类似的30分钟内不进行冷水浴。在治疗前、治疗后立即以及随后的3小时内每20分钟测量一次受试者的最大握力，共测量11次。受试者在一天中的同一时间、一周中的同一天接受测试，持续两周。实验性治疗后，握力立即显著低于治疗前的测量值以及对照治疗后的测量值。与相同时间间隔的对照测量值相比，或与两种治疗的治疗前测量值相比，实验治疗期间的握力在治疗后80分钟时显著增加。在其余的测试时段，两种治疗的力量测量值仍存在显著差异。
