Study findings demonstrate knee pain may reduce muscle function, according to research published in the Journal of Pain.
Researchers tested experimental knee pain in 18 healthy subjects on two different days. Muscle strength in knee extension and flexion were measured at angular velocities 0, 60, 120 and 180 degrees/second before, during and after hypertonic saline injections into the infrapatellar fat pad, which induced the experimental pain. On a separate day, isotonic saline injections were used as controls.
Pain intensity was measured on a 0- to 100-mm visual analogue scale. Knee pain reduced muscle strength by 5-15 percent compared to the control in both knee extension and flexion at all angular velocities. Researchers concluded reduced muscle strength was positively correlated to pain intensity.
Read the study about knee pain and muscle function.
Read other coverage about pain management:
- Wayne State University to Study Chronic Cancer Pain in African Americans
- Daily Dose Strongly Associated With Opioid-Related Mortality Among Nonmalignant Pain Patients
- Florida's Surgeon General Signs Prescription Drug Monitoring Program Into Effect
Researchers tested experimental knee pain in 18 healthy subjects on two different days. Muscle strength in knee extension and flexion were measured at angular velocities 0, 60, 120 and 180 degrees/second before, during and after hypertonic saline injections into the infrapatellar fat pad, which induced the experimental pain. On a separate day, isotonic saline injections were used as controls.
Pain intensity was measured on a 0- to 100-mm visual analogue scale. Knee pain reduced muscle strength by 5-15 percent compared to the control in both knee extension and flexion at all angular velocities. Researchers concluded reduced muscle strength was positively correlated to pain intensity.
Read the study about knee pain and muscle function.
Read other coverage about pain management:
- Wayne State University to Study Chronic Cancer Pain in African Americans
- Daily Dose Strongly Associated With Opioid-Related Mortality Among Nonmalignant Pain Patients
- Florida's Surgeon General Signs Prescription Drug Monitoring Program Into Effect