Table 1.

Mean semen parameter values during maca and placebo treatment (mean ± standard error; Kruskal-Wallis H test).

		n	Normal sperm morphology (%)	Sperm concentration (×106 mL−1)	Progressively motile sperm count (×106 mL−1)	Motile sperm count (×106 mL−1)	Total sperm count (×106)	Semen volume (mL)
Maca	0 weeks	11	18.18 ± 1.68	77.27 ± 6.79	47.72 ± 4.33	58.00 ± 5.40	277.90 ± 31.18	3.66 ± 0.31
	6 weeks	11	22.22 ± 2.22	86.11 ± 7.48	51.66 ± 2.88	63.22 ± 3.47	241.11 ± 25.54	2.92 ± 0.33
	12 weeks	11	22.00 ± 2.00	87.80 ± 9.86	56.20 ± 7.19	66.30 ± 8.36	332.31 ± 58.98	3.99 ± 0.31
	P value		0.29	0.52	0.28	0.39	0.42	0.11
	H	3.25	1.31	2.56	1.89	1.75	4.46
Placebo	0 weeks	7	20.71 ± 1.70	106.71 ± 15.59	70.00 ± 12.53	83.42 ± 13.73	295.56 ± 69.580	2.77 ± 0.53
	6 weeks	7	23.33 ± 2.10	100.00 ± 10.24	60.00 ± 8.560	71.66 ± 8.620	395.16 ± 152.57	3.57 ± 1.01
	12 weeks	7	17.85 ± 3.75	100.28 ± 12.04	65.71 ± 11.09	74.85 ± 11.43	355.28 ± 96.940	3.44 ± 0.64
	P value		0.44	0.83	0.89	0.72	0.87	0.73
	H	0.23	0.38	0.23	0.67	0.27	0.63