Table.

Means and SEM. Values are neurotrophin (NT) concentration (pg/ml), YA= Young Adult. Open cells represent detraining data from the laryngeal brainstem nuclei (NA) and muscle (TA). These data were not analyzed due to the lack of an initial exercise effect on the laryngeal tissue.

NT	Location		Control		Exercise		2W		4W
			Mean	SEM	Mean	SEM	Mean	SEM	Mean	SEM
NT4	BSC	YA	40447	7278	84578	18838	76744	19468	59983	11523
		Old	43113	5390	41886	6800	38904	5112	33402	4206
	HN	YA	40482	8228	74547	16076	52964	9872	47394	7602
		Old	33745	5836	34885	7833	26533	3989	27782	2946
	NA	YA	54954	11099	68808	12173
		Old	38618	6404	37893	5072
	EDL	YA	16542	6722	29858	6707	21663	2343	21168	3635
		Old	22575	7825	12279	2848	20235	3860	12181	1770
	GG	YA	10783	2593	7357	1830	17618	4653	13375	5102
		Old	8111	1943	9797	1849	14536	5790	9257	1610
	TA	YA	46989	3635	66573	10547
		Old	82788	8724	83013	18156
BDNF	BSC	YA Old	168	62	133	43	252	80	163	36
			85	28	376	205	137	40	170	34
	HN	YA Old	337	105	471	91	530	107	450	105
			296	83	1049	381	341	89	377	61
	NA	YA Old	107	35	206	77
			144	23	555	308
	EDL	YA Old	401	180	584	236	188	62	338	178
			228	152	586	279	129	36	351	306
	GG	YA Old	325	133	129	43	311	47	328	90
			220	70	375	122	282	98	192	33
	TA	YA Old	657	230	351	148
			165	79	486	32
TrkB	BSC	YA Old	645	191	1277	567	709	262	483	159
			775	324	733	190	771	237	1379	844
	HN	YA Old	834	323	1354	612	956	419	792	267
			974	414	1059	352	1058	280	960	492
	NA	YA Old	920	360	436	203
			506	238	787	279
	EDL	YA Old	3882	613	5278	834	3620	413	2785	427
			4268	773	3193	889	3490	788	5069	1116
	GG	YA Old	2584	636	2815	692	3210	302	2184	482
			2041	475	2575	433	2496	420	3145	637
	TA	YA Old	4635	1151	8568	2204
			6826	1851	9894	4433