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Abstract

ABSTRACT

Previous research has explored exposing distal extremities to cold temperatures as a strategy to enhance exercise performance (ExPer). While some studies have found acute ergogenic benefits to indices such as repetitions-to-failure and muscle activity, overall findings remain equivocal. No studies to date have evaluated interset palm cooling (IPC) effects across a full-body (FB) resistance training (RT) protocol. Thus, it remains unclear whether IPC may aid in physiological or performance-oriented outcomes in an ecologically valid context. PURPOSE: This study’s primary purpose was to evaluate the effects of IPC during a FB RT protocol on volume load (VL). The secondary aim was to evaluate the effects on psychophysiological (PsyPhy) markers. METHODS: In a crossover design, participants completed 3 sessions with ≥72 hours between (1 familiarization session consisting of 10-repetition maximum testing and 2 randomized experimental sessions consisting of an identical FB RT protocol). Experimental sessions were either the IPC (2 min. at 10-15°C between RT sets) or the CON (2 min at 22-28°C between RT sets) condition. IPC and CON employed identical application timing and fixed temperature ranges using a water-cooling device (CoolMitt®, Arteria Technology, Inc.). Assessments included exercise performance (VL, REPS, fatigue index, pre-post countermovement jump (CMJ)) and PsyPhy markers (discomfort, session rating of perceived exertion, heart rate, blood lactate, and tympanic temperature). RESULTS: 25 participants (F=12; M=13) completed the study. No statistically significant (p2=0.077 [0.00,0.25]). CONCLUSION: The current study suggests that IPC is unlikely to enhance ExPer or PsyPhy responses in a FB RT protocol and does not have broad utility as a RT ergogenic aid.

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