Fig. 3
Correlations are presented between BMI and CC for THA, HFS and control groups. Relationship between body mass index (BMI) and calf circumference (CC) is mapped. The BMI (kg/m2) is compared with CC (cm) as an indicator for sarcopenia. There was a strong positive correlation (r = .566, p < .001, marked by a line) between BMI and CC among the groups, THA (30), HFS (21) and Control (20) groups. Eleven people: 5 THA (3 male, 2 female), 1 HFS (male) and 5 in the Control group (3 male, 2 female), 15% in total, had elevated CC. Above the set limit (> 38 cm), an increase of fall risk can be observed and mobility disability is more likely [30]. THA denotes total hip arthroplasty, HFS hip fracture surgery, BMI body mass index, kg kilogram, cm centimetre and m2 means square meter