Figure 3From: Validation of a single biopsy approach and bolus protein feeding to determine myofibrillar protein synthesis in stable isotope tracer studies in humansThe relationship between obtaining sequential muscle biopsies (2BX) and utilizing the single biopsy approach with a long incorporation time (1BX LONG) in study 1. There was a significant (r = 0.9, P = 0.003) correlation between rates of myofibrillar protein synthesis (FSR, %/hr) using the 2BX and 1BX LONG approaches. Dark line: line of linear best fit, with 95% confidence interval, for 1BX LONG versus 2 BX - y = 0.64 ± 0.16x + 0.01 ± 0.001. Dashed line: line of identity. Note: only 7 points are visible since two points share the same values (outline in bold).Back to article page