This study aimed to describe the percentage of intrinsic foot muscles (IFM) activation during maximal toe grip in amateur runners. In this descriptive study, ten amateur runners (age = 22.5 ± 2.8 years; height = 1.67 ± 0,08 m; weight = 67.6 ± 12.0 kg; sex= five female, five male) were evaluated. All volunteers provided prior informed consent. Myoelectric activity was assessed in six IFM: extensor digitorum brevis (EDB), first dorsal interossei (DI), abductor digiti minimi (ADM), flexor digitorum brevis/quadratus plantae (FDB/QP), flexor hallucis brevis (FHB), and abductor hallucis (AH). This measurement was conducted through surface electromyography (EMG) during maximum toe grip. The amplitude of these signals was expressed as a percentage of their peak amplitude during a maximum voluntary contraction (%MCV), which was captured in specific tests for each IFM. All data were analyzed using descriptive statistics, including measures of central tendency (mean) and dispersion (standard deviation). The FDB/QP (71.0 ± 10.9%MVC), DI (62.4 ± 24.1%MVC), and ADM (46.1 ± 18.1%MVC) muscles exhibited greater activity during maximum toe grip. In contrast, the muscle that displayed the lowest activity during grip was the EDB (7.5 ± 5.7%MVC). In conclusion, it was observed that the level of activation of each IFM during grip varied, with higher activation in the FDB/QP muscle, which is directly involved in plantar flexion of the metatarsophalangeal joint.