All the variables of nutrition show significant positive correlation with the handgrip strength in laborers except for triceps skin-fold thickness.
Triceps skin-fold thickness (mm) showed a significant negative correlation with handgrip strength (r = -0.46, P = 0.001).
Height, weight, waist size, and triceps skin-fold thickness
Triceps skin-fold thickness
(TS) (mm) was measured using Harpenden calipers.
Anthropometric measurements included body mass index (BMI), triceps skin-fold thickness (TSF), and arm muscle area (AMA) .
Anthropometric variables [mean(SD)] in hospitalized and institutionalized patients Anthropometric variables Men Women n=24 n=24 Hospitalized patients Body mass index 23.0 (4.0) 22.4 (3.9) Triceps skin-fold thickness 1.04 (0.4)[sections] 1.42 (0.4) Arm muscle area 46.1 (16.2) 46.6(13.4) Institutionalized patients Body mass index 22.8 (2.4) 22.0 (3.8) Triceps skin-fold thickness 0.99 (0.3)[subsections] 1.55(0.5) Arm muscle area 45.6 (1.26) 45.8(13.8) [sections] p < 0.01, [subsections] < vs.
Triceps skin-fold thickness and mid-arm circumference were measured in the right arm midway between the tip of the acromion and the olecranon using a Holtain skin-fold caliper which has a pressure of 10 g/ [mm.sup.2] of contact surface area over its entire operating range.
Body weight was below 80% of age- and sex-specific average values in 13.7%, and triceps skin-fold thickness was subnormal in 30.3% of patients, suggesting energy malnutrition.
This was further reflected in the distribution of values for triceps skin-fold thickness
. The mean was 11.87 (SD 5.2); when comparing the values for TSF with percentiles for community-dwelling elderly people, 10% of patients were below the 5th percentile, and 57%, mostly women, above the 75th percentile.
Arm muscle circumference (AMC) was calculated according to the formula AMC = MAC - (TSF x 0.314) where TSF is triceps skin-fold thickness.
TSF = triceps skin-fold thickness; FFM = fat-free mass.