Finger pain during flexion is commonly linked to increased load at the metacarpophalangeal (MP) joint and tightening of the finger flexor muscles

Finger pain during flexion is commonly linked to increased load at the metacarpophalangeal (MP) joint and tightening of the finger flexor muscles.

Supporting the MP joint during movement can reduce mechanical stress, and forearm flexor soft-tissue techniques have been shown to improve finger mobility and decrease pain sensitivity.

Evidence (summarized):

1. Studies show that stabilizing the MP joint decreases strain on the tendon–pulley system during finger flexion (Weinstein et al., Journal of Hand Therapy).

2. Research on forearm soft-tissue mobilization reports improved finger mobility and reduced discomfort in individuals with flexor tendon tightness (Andrade et al., Hand Clinics).