Abstract

Rock climbers may experience fatigue in the form of pain in the forearm muscles, potentially leading to an inability to maintain their grip, which could result in a fall. Ischemic Preconditioning (IPC), which is the process of repeatedly occluding and reperfusing blood flow to an extremity via an inflatable cuff, has been s8hown to improve time until failure. The purpose of this study is to determine the effect of IPC on time until failure in a rock-climbing-specific task. 13 participants (8-males & 5-females) completed two separate (IPC and Control) isometric rock-climbing-specific fingertip holds. The IPC protocol consisted of 3 cycles of 5 minutes of occlusion followed by 5 minutes of reperfusion. In the control test, participants were asked to rest for 30 minutes. Participants were asked to repeatedly hold 40% of their maximum voluntary isometric contraction for 8 sec., resting for 2 sec., until they were no longer able to reach the target intensity. For both sessions, EMG and NIRS monitors were used to assess muscular activation & oxygen saturation in the blood at the forearm. A Paired-samples T-Test was utilized to analyze the data. Time until failure was significantly longer following IPC than in the control condition (216.38 ± 93.50 sec. vs. 180.61 ± 70.43 sec. respectively; P

Class Standing

Graduate Student

Department

Health and Human Performance, School of

Faculty Advisor

Matthew Kilgas

Faculty Advisor Email

mkilgas@nmu.edu

Date

2022

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