Nicotine supplementation enhances simulated game performance of archery athletes

Table 2 The heart rate variability in both groups at different stages

Outcomes	Condition	Time					Condition effect		Time effect		Condition x Time
Outcomes	Condition	S1	S2	S3	S4	S5	p	η_p²	p	η_p²	p	η_p²
HR (bpm)							.028	.474	<.001	.815	.039	.319
	PLA	82.23 ± 6.50	82.50 ± 6.83	79.75 ± 5.96	95.41 ± 5.33^aaa	81.72 ± 6.85
	NIC	79.51 ± 5.15	84.49 ± 6.85^a	84.24 ± 8.14	101.70 ± 8.04^aaa,##	87.85 ± 9.53^a
pNN50 (%)							.229	.175	<.001	.562	.023	.290
	PLA	14.16 ± 7.83	13.26 ± 9.94	18.37 ± 10.05	5.56 ± 3.63^aa	17.03 ± 9.56
	NIC	18.86 ± 9.94	8.77 ± 5.16^aa	13.08 ± 6.40	5.25 ± 2.82 ^aa	12.21 ± 8.21
LF(n.u.)							.371	.081	.008	.396	.588	.067
	PLA	68.30 ± 7.22	69.41 ± 7.55	64.62 ± 8.00	77.39 ± 12.74^a	61.63 ± 11.14^a
	NIC	65.56 ± 12.90	72.01 ± 8.11^a	68.33 ± 9.10	77.52 ± 10.05 ^aa	65.35 ± 10.56
HF(n.u.)							.371	.081	.008	.396	.588	.067
	PLA	31.70 ± 7.22	30.59 ± 7.55	35.38 ± 8.00	22.61 ± 12.74^a	38.37 ± 11.14^a
	NIC	34.44 ± 12.90	27.99 ± 8.11^a	31.67 ± 9.10	22.48 ± 10.05^aa	34.65 ± 10.56
LF/HF							.655	.021	.002	.565	.516	.065
	PLA	2.44 ± 0.75	2.61 ± 0.81	2.14 ± 0.91	5.28 ± 3.31^a	2.02 ± 1.00
	NIC	2.26 ± 0.98	3.15 ± 1.17^a	2.70 ± 1.58	4.73 ± 2.04^aa	2.33 ± 0.83

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