Reproductive toxicology (Elmsford, N.Y.) · 2026
22Effects of Resistance Exercise on Testicular Oxidative Status and Spermatogenic Indices Following RF-EMF Exposure in Adult Male Rats.
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Hatami Homeira, Paknahad Soheila, Khojasteh Seyed Mahdi Banan, Hamidian Gholamreza, Ghasemloo Elham
Аннотация
ACKGROUND: RF-EMFs may adversely affect male reproductive function through oxidative stress and disruption of spermatogenesis. This study investigated whether resistance exercise performed before RF-EMF exposure attenuates testicular alterations in adult male rats.
METHODS: Forty-two adult male Wistar rats were randomly assigned to six groups: Control, Exercise, 7-day RF-EMF, 14-day RF-EMF, Exercise+7-day RF-EMF, and Exercise+14-day RF-EMF. Exercise groups underwent 8 weeks of ladder-climbing resistance training before RF-EMF exposure. Animals were exposed to 850MHz RF-EMF for 4h/day for 7 or 14 consecutive days. Testicular MDA, TOS, SOD, CAT, TAC, CREB and CREM mRNA expression, and histological indices of spermatogenesis were evaluated.
RESULTS: Fourteen-day RF-EMF exposure significantly increased MDA, SOD, CAT, and TOS and reduced TDI and SPI, while TOS increased after both 7 and 14 days. Resistance training was associated with lower MDA and TOS in RF-EMF-exposed animals, with significant reductions in MDA after 14 days and TOS after both exposure durations. SOD and CAT were lower in the Exercise+14-day RF-EMF group, whereas TAC was higher in exercise groups under all exposure conditions. TDI was higher after both 7 and 14 days, while SPI increased only after 14 days. CREB expression did not differ significantly among groups. CREM showed a significant main effect of resistance training, with higher expression in the Exercise group under the No Wave condition.
CONCLUSIONS: Resistance training before RF-EMF exposure was associated with attenuation of oxidative and histological testicular alterations, suggesting a potential protective role against RF-EMF-related reproductive effects.
METHODS: Forty-two adult male Wistar rats were randomly assigned to six groups: Control, Exercise, 7-day RF-EMF, 14-day RF-EMF, Exercise+7-day RF-EMF, and Exercise+14-day RF-EMF. Exercise groups underwent 8 weeks of ladder-climbing resistance training before RF-EMF exposure. Animals were exposed to 850MHz RF-EMF for 4h/day for 7 or 14 consecutive days. Testicular MDA, TOS, SOD, CAT, TAC, CREB and CREM mRNA expression, and histological indices of spermatogenesis were evaluated.
RESULTS: Fourteen-day RF-EMF exposure significantly increased MDA, SOD, CAT, and TOS and reduced TDI and SPI, while TOS increased after both 7 and 14 days. Resistance training was associated with lower MDA and TOS in RF-EMF-exposed animals, with significant reductions in MDA after 14 days and TOS after both exposure durations. SOD and CAT were lower in the Exercise+14-day RF-EMF group, whereas TAC was higher in exercise groups under all exposure conditions. TDI was higher after both 7 and 14 days, while SPI increased only after 14 days. CREB expression did not differ significantly among groups. CREM showed a significant main effect of resistance training, with higher expression in the Exercise group under the No Wave condition.
CONCLUSIONS: Resistance training before RF-EMF exposure was associated with attenuation of oxidative and histological testicular alterations, suggesting a potential protective role against RF-EMF-related reproductive effects.