Table 1.
Descriptive statistics of subjects included in the primary analysis cohort (N = 111).
| Variable | Primary analysis cohort (N = 111) |
|
|---|---|---|
| Mean (SDa) | Min-Max | |
| Age | 57.1 (6.4) | 46–73 |
| Body Mass Index | 30.4 (6.4) | 19.7–53.2 |
| Baseline KOOSb Pain | 48.0 (17.0) | 8.3–91.7 |
| Baseline KOOS Activities of Daily Living | 38.6 (18.9) | 2.9–88.2 |
| Baseline mean hamstrings muscle strength (lbs) | 27.5 (14.7) | 4.2–84.6 |
| Baseline mean quadriceps muscle strength (lbs) | 34.4 (18.5) | 4.7–105.7 |
| Absolute change in KOOS Pain between baseline and 3 months | 17.1 (17.4) | −16.7–63.9 |
| Absolute change in KOOS Pain between baseline and 12 months | 27.1 (20.4) | −22.2–77.8 |
| Absolute change in KOOS Activities of Daily Living between baseline and 3 months | 15.8 (18.3) | −32.4–61.8 |
| Absolute change in KOOS Activities of Daily Living between baseline and 12 months | 22.9 (19.1) | −16.2–67.6 |
| Absolute change in hamstrings strength (lbs) between baseline and 3 months | 3.5 (9.4) | −20.4–26.9 |
| Absolute change in quadriceps strength (lbs) between baseline and 3 months | 3.6 (11.2) | −28.1–30.7 |
a
SD indicates standard deviation
b
KOOS indicates Knee Injury and Osteoarthritis Outcomes Score; scaled 0–100, 100 worst