In medical studies, treatments are tested within a group of study participants. You will be given a sentence of a study report in which your task is to list the phrases that give information about the participants of the study. You should list the phrases in the same order that they appear in the text, separated by commas. If no information about the participants is mentioned, just output "not found". Relevant information about participants include: gender, medical conditions, location, number of people participating. Do not contain participant mentions without relevant information.
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Question: Women who also exercised had additional increases in BMD at the femoral neck ( +0.29 % ) , total hip ( +0.34 % ) , spine ( +0.23 % ) , total radius ( +0.30 % ) , and additional decreases in Alkphase B ( -2.4 % ) and Serum NTx ( -6.5 % ) .

Answer: not found

Question: One third were nonsmokers .

Answer: nonsmokers

Question: A 20-min set of audiotaped instructions on progressive muscle relaxation training ( PMRT ) was given to the patients in the experimental group for home practice .

Answer:
not found