A mixture of active phenolic compounds with ascorbic acid

Ascorbic acid group

Ascorbic acid / phytochemical supplement

It is a self-administered questionnaire consisting of 24 items divided into 3 subscales:

• Pain (5 items): during walking, using stairs, in bed, sitting or lying, and standing upright
• Stiffness (2 items): after first waking and later in the day
• Physical Function (17 items): using stairs, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy domestic duties, light domestic duties The test questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4).

The scores for each subscale are summed up, with a possible score range of 0-20 for Pain, 0-8 for Stiffness, and 0-68 for Physical Function. Higher scores on the WOMAC indicate worse pain, stiffness, and functional limitations.

The Visual Analogue Scale - VAS is a unidimensional measure of pain intensity. It is a measurement instrument that tries to measure a characteristic or attitude that is believed to range across a continuum of values and cannot easily be directly measured.

It is a self-administered questionnaire consisting of 24 items divided into 3 subscales:

• Pain (5 items): during walking, using stairs, in bed, sitting or lying, and standing upright
• Stiffness (2 items): after first waking and later in the day
• Physical Function (17 items): using stairs, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy domestic duties, light domestic duties