Research Article
Evidence That Sleep Is an Indicator of Overtraining during the Competition Phase of Adolescent Sprinters
Table 5
Correlation calculated on pooled data for both adapted and maladapted athletes.
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| (1) Performance | — | — | — | — | — | — | — | — | — | — | — | — | (2) Internal TL | −0.27 | — | — | — | — | — | — | — | — | — | — | — | (3) Training volume | −0.79 | 0.14 | — | — | — | — | — | — | — | — | — | — | (4) Fatigue | −0.69 | 0.57 | 0.69 | — | — | — | — | — | — | — | — | — | (5) Tension | −0.16 | 0.47 | 0.21 | 0.62 | — | — | — | — | — | — | — | — | (6) Depression | −0.35 | 0.45 | 0.34 | 0.72 | 0.80 | — | — | — | — | — | — | — | (7) Absolute sIgA | 0.55∗ | −0.01 | −0.50 | −0.45 | −0.22 | 0.35 | — | — | — | — | — | — | (8) TMD | −0.44 | 0.61 | 0.44 | 0.84 | 0.85 | 0.91 | −0.33 | — | — | — | — | — | (9) TST | 0.60 | −0.25 | −0.70 | −0.83 | −0.51∗ | −0.56 | 0.53 | −0.69 | — | — | — | — | (10) SE% | 0.91 | −0.29 | −0.76 | −0.76 | −0.22 | −0.46 | 0.58 | −0.50 | −0.62 | — | — | — | (11) SOL | −0.48 | 0.35 | 0.23 | 0.42 | 0.20 | 0.13 | 0.22 | 0.35 | −0.52 | −0.43 | — | — | (12) WASO | −0.66 | 0.03 | 0.56∗ | 0.17 | −0.07 | −0.19 | −0.29 | 0.08 | −0.19 | −0.55 | 0.29 | — |
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; . TL: training load; sIgA: secretory immunoglobulin A; TMD: total mood disturbance; TST: total sleep time; SE%: sleep efficiency; SOL: sleep onset latency; WASO: wake after sleep onset. |