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Prehensile strength test

GB Guillermo Barahona-Fuentes
ÁO Álvaro Huerta Ojeda
GR Gabriela Lizana Romero
PD Pedro Delgado-Floody
DJ Daniel Jerez-Mayorga
MY María-Mercedes Yeomans-Cabrera
LC Luis Javier Chirosa-Ríos
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Before starting the test, for 5 min, each participant performed a standardized warm-up—upper limb dynamic movements. Subsequently, the participants stood with the shoulder adducted in neutral rotation. The elbow should be in 180° extension, and the forearm and wrist should be in a neutral position [34]. Then, the digital hand dynamometer (JAMAR Plus® + , USA) was placed in the participant's hand. Then, the investigator indicated the word "squeeze" to start the test and "relax" to finish. The maximum voluntary contraction of the prehensile strength test was 3–5 s. Each participant performed the test twice with each hand (first the right hand and then the left hand). There was a 120-s pause between each repetition and a 1-min rest before assessing the other limb. All participants received verbal support during the execution of the test. The average result of the two repetitions for each hand resulted in handgrip muscle strength (HGS). This was used for the characterization of sample 1.

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