Abstract
This study sought to determine if total resistance training volume (RTvol) could predict functional outcome (Physical Demand Level; PDL) following a sports performance based rehabilitation program in workers' compensation rotator cuff repair patients (n=42). RTvol = Weight * Sets * Repetitions; daily average for the first and last week. PDL was measured at program completion (KEY Method) and classified by occasional occupational lifting requirements: LIGHT (L; 20lbs), LIGHT-MEDIUM (LM; 35lbs), MEDIUM (M; 50 lbs), MEDIUM-HEAVY (MH; 75lbs), HEAVY (H; 100lbs), VERY HEAVY (VH; >100lbs). ANOVA analyzed relationships between PDL and RTvol Fisher's Exact Test was used post-hoc. Paired t-test assessed first/last week change. Alpha=0.05. Data are mean±SEM. PDLs were L=1, LM=6, MH=13, H=10, VH=12. For analysis the L patient was eliminated. First week RTvol were: LM 5751±1329 lbs; MH 10502±1152 lbs; H 16910±1965 lbs; VH 18879±2555 lbs. First week RTvol was higher in H and VH groups compared to LM and MH groups. RTvol increased during the program in all groups. Last week RTvol were: LM 7299±806 lbs; MH 20386±1697 lbs; H 27430±2589 lbs; VH 33399±2354 lbs. Last week RTvol increased significantly between each successive PDL group. Linear regression yielded a correlation coefficient of R2=0.61 for the relationship between RTvol and PDL. These results suggest that RTvol can predict PDL following a rehabilitation program.
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