Table 3.
Associations between probable and confirmed sarcopenia and self-reported and accelerometer-measured physical activity in older adults not meeting the physical activity guidelines (n = 313)
| No sarcopenia | Probable sarcopenia and sacopenia | |||
|---|---|---|---|---|
| OR | OR | 95% CI | p value | |
| Age (years) | 1.0 | 1.1 | 1.0–1.2 | 0.007 |
| Sex | ||||
| Women | 1.0 | reference | ||
| Men | 1.0 | 0.6 | 0.3–1.2 | 0.149 |
| Category for self-reported PAa | 0.083 | |||
| 0 | 1.0 | 3.2 | 0.6–17.3 | 0.171 |
| 1 | 1.0 | 5.3 | 1.2–24.6 | 0.032 |
| 2 | 1.0 | 5.5 | 1.2–25.7 | 0.031 |
| 3 | 1.0 | 2.2 | 0.4–11.4 | 0.340 |
| 4–5 | 1.0 | reference | ||
| Category for self-reported PAa | ||||
| 0–2 | 1.0 | 2.8 | 1.3–6.1 | 0.009 |
| 3–5 | 1.0 | Reference | ||
| PA Model 1b | ||||
| SED time (30 min/day) | 1.0 | 1.0 | 0.9–1.1 | 0.782 |
| LPA time (30 min/day) | 1.0 | 1.0 | 0.9–1.2 | 0.976 |
| MVPA time (30 min/day) | 1.0 | 0.8 | 0.4–1.3 | 0.304 |
| PA Model 2c | ||||
| SED time (30 min/day) | 1.0 | 1.0 | 0.8–1.1 | 0.530 |
| LPA time (30 min/day) | 1.0 | 1.0 | 0.9–1.2 | 0.971 |
| MVPA time (30 min/day) | 1.0 | 0.7 | 0.4–1.3 | 0.229 |
Reference: no sarcopenia. Sarcopenia refers to sarcopenia and probable sarcopenia
OR, odds ratio; CI, confidence interval; PA, physical activity
a Adjusted for age and sex
b Model 1 adjusted for age and sex. Only one activity variable was used as an exposure per regression
c Model 2 further adjusted for other intensities of physical activity
Category 0 is for the lowest and 5 for the highest levels of self-reported PA. Categories 4 and 5 were combined due to the low response frequency in category 5. There were 21 participants missing data on accelerometer-measured PA (n = 21)