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Table 4 Collagen and collagen cross-links

From: Load magnitude affects patellar tendon mechanical properties but not collagen or collagen cross-linking after long-term strength training in older adults

  CON MRT HRT
0 mths (n = 10) 12 mths (n = 10) 0 mths (n = 13) 12 mths (n = 13) 0 mths (n = 9)a 12 mths (n = 9)a
Collagen (%) 69 ± 3 62 ± 2 61 ± 4 59 ± 2 63 ± 3 61 ± 2
HP (mmol/mol collagen)b 298 ± 28 322 ± 25 314 ± 23 267 ± 21 254 ± 28 292 ± 22
LP (mmol/mol collagen)b 24.8 ± 5.0 26.5 ± 3.8 40.8 ± 4.4 28.8 ± 5.1 37.0 ± 5.9 34.3 ± 3.2
Fluorescence (AU/mol collagen) 1139 [1096–1185] 1235 [1176–1297] 1155 [1124–1187] 1196 [1161–1232] 1263 [1191–1339] 1328 [1285–1372]
  1. Values are means ±SE or geometric mean [lower limit – upper limit]. Data analyzed by repeated measures two-way ANOVA with baseline adjustment and Tukey-Kramer post hoc test
  2. CON = Control, MRT = moderate load resistance training, HRT = Heavy load resistance training
  3. No time x group interactions. ‡: Main effect of time (p < 0.05)
  4. aOne missing sample due to anti-coagulant therapy. bFive missing pairs of samples due to logistics
  5. CON: n = 9, MRT: n = 11, HRT: n = 8