Finger Flexors (Lumbricals, Interossei)
Location. Palm and fingers
Pain referral. Palm, fingers
- Palm
- Fingers (palmar surface)
Aching in individual fingers worsened by sustained gripping or repetitive flexion tasks
Location. Palm and fingers
Pain referral. Palm, fingers
Finger pain. Aching in individual fingers worsened by sustained gripping or repetitive flexion tasks
Palm ache. Deep palmar discomfort from intrinsic hand muscle trigger point activation and tension
Stiffness in fingers. Reduced finger mobility and range of motion from taut bands in hand muscles
Difficulty making fist. Incomplete finger flexion due to pain and stiffness from intrinsic muscle trigger points
Repetitive gripping. Sustained grip activities overload finger flexors and intrinsic hand muscles causing fatigue
Typing. Prolonged rapid finger movements during keyboard use fatigue lumbricals and interossei
Playing instruments. Sustained finger pressure and rapid movements during practice overload intrinsic hand muscles
Crochet/knitting. Repetitive fine finger movements during needlework cause cumulative hand muscle strain
Tool use. Forceful gripping of tools demands sustained intrinsic hand muscle contraction and effort
Rest your forearm on a table with your palm facing up. Using the thumb of your opposite hand, apply firm pressure along the fleshy muscles on the inner forearm, working from the elbow crease down toward the wrist. Pause on any especially tender spots and hold for 10-15 seconds before continuing.
Place your hand flat on a table with your palm down and fingers straight. Gently press down on each finger in turn to achieve a full extension stretch. Hold each stretch for 10 seconds. Then place all fingertips at the table edge and gently press your palm flat to stretch all flexors simultaneously.
Start with your hand open and fingers straight. Move through five positions in sequence: straight fingers, hook fist (bend at middle joints only), full fist, tabletop (bend at knuckles only), and straight fist (bend at knuckles and tips). Hold each position for 3 seconds and perform 10 complete cycles.
Place a rubber band around all five fingertips. Spread your fingers apart against the resistance of the band, hold for 5 seconds, then slowly release. Perform 3 sets of 15 repetitions. Use a thicker band to increase resistance as your strength improves.
Reduce sustained gripping time by taking 2-minute breaks every 15-20 minutes during manual work, climbing, or repetitive hand tasks. Alternate between grip-intensive and non-grip tasks throughout the day. Use ergonomic grips and power tools where possible to reduce manual demand.
If finger locking, persistent numbness, or significant weakness continues despite self-care, consult a hand specialist or orthopedic surgeon. They can perform specific clinical tests and imaging to differentiate trigger points from trigger finger, carpal tunnel syndrome, or early osteoarthritis.