Specific collagen peptides increase adaptions of patellar tendon morphology following 14-weeks of high-load resistance training: A randomized-controlled trial

Figures & data

Figure 1. A/B: Patellar tendon CSA from pre to post in SCP (A) and PLA (B) group along entire tendon length from 0% (proximal) to 100% (distal). C: Percent change in patellar tendon CSA at 60% and 70% of tendon length. All data are mean and SEM. * indicates significant effects of time within group. # indicates significant time*group interaction effects.

Table 1. ANOVA time*group interaction values for all patellar tendon sites.

Tendon site	F	p-value	ηp^2
0%	F(1,29) = 0.060	p = 0.808	0.002
10%	F(1,29) = 1.477	p = 0.234	0.048
20%	F(1,29) = 0.819	p = 0.373	0.027
30%	F(1,29) = 2.131	p = 0.155	0.068
40%	F(1,29) = 2.181	p = 0.151	0.070
50%	F(1,29) = 2.897	p = 0.099	0.091
60%	F(1,29) = 6.180	p = 0.019	0.176
70%	F(1,29) = 7.669	p = 0.010	0.209
80%	F(1,29) = 2.880	p = 0.100	0.090
90%	F(1,29) = 3.930	p = 0.057	0.119
100%	F(1,29) = 0.914	p = 0.347	0.031

Bold indicates significant time*group interaction (p < 0.05).

Figure 2. Patellar tendon stiffness from pre to post of SCP and PLA group. Data shows mean with individual pre to post values. * indicates significant within-group differences between pre and post (p < 0.01).

Figure 3. A/B: Rectus femoris CSA from pre to post in SCP (A) and PLA (B) group along entire muscle length from 0% (proximal) to 100% (distal) shown in mean and SEM. C/D: Pre to post analysis of 1RM measurement of SCP and PLA group for leg press (C) and knee extension (D) presented as mean with individual pre to post values. * indicates significant within-group differences between pre and post.