Effect of resistance training and detraining on the oxidative stress in obese older women

Padilha, Camila de Souza; Ribeiro, Alex Silva; Silva, Danilo Rodrigues Pereira da; Nascimento, Matheus Amarante do; Okino, Alessandra Miyuki; Venturini, Danielle; Barbosa, Décio Sabbatini; Cyrino, Edilson Serpeloni

doi:10.5007/1980-0037.2015v17n5p517

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Revista Brasileira de Cineantropometria & Desempenho Humano

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Original Article • Rev. bras. cineantropom. desempenho hum. 17 (5) • Sep-Oct 2015 • https://doi.org/10.5007/1980-0037.2015v17n5p517 copy

Effect of resistance training and detraining on the oxidative stress in obese older women

Efeito do treinamento com pesos e do destreinamento sobre o estresse oxidativo em mulheres idosas obesas

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The aim of this study was to investigate the effect of resistance training (RT) followed by a similar detraining period on the modulation of oxidative stress (OS) in obese older women. Fourteen obese women (age: 68.7 ± 4.8 years, body mass: 71.3 ± 14.8 kg, height: 156.3 ± 7.2 cm, body fat: 44.3 ± 4.4%) were submitted to 12 weeks of a RT program followed by a similar detraining period. Advanced oxidation protein products (AOPP) and total radical-trapping antioxidant potential (TRAP) were used as oxidative stress indicators. AOPP was not changed by RT or detraining (P = 0.31). Furthermore, TRAP was increased with RT (+ 15.1%; P < 0.001) and remained high even after 12 weeks of detraining (10.5%; P < 0.001). The results suggest that OS can be improved by RT and the 12-week detraining period does not seem to be enough to reverse adaptations induced by RT in obese older women.

Key words:
Antioxidant capacity; Resistance exercises; Obesity

Variables	Minimum	Maximum	Mean	Standard deviation
Age (years)	62	71	68.7	4.8
Body mass (kg)	51.9	103.6	71.3	14.8
Height (cm)	148	170.5	156.3	7.2
Body fat (%)	30.2	51.5	44.3	4.4

Variables	Pre	Post	Detraining	P
Muscular strength
Chest press (kg)	39.7 ± 5.4	46.8 ± 8.5^* * P < 0.05 vs. Pre.	43.9 ± 7.3^* * P < 0.05 vs. Pre. ^† † P < 0.05 vs. Post. TRAP = total radical-trapping antioxidant potential. AOPP = advanced oxidation protein products.	< 0.001
Knee extension (kg)	47.1 ± 13.2	53.5 ± 13.9^* * P < 0.05 vs. Pre.	44.5 ± 13.9^† † P < 0.05 vs. Post. TRAP = total radical-trapping antioxidant potential. AOPP = advanced oxidation protein products.	< 0.001
Body composition
Body fat (%)	44.3 ± 4.4	43.0 ± 4.8^* * P < 0.05 vs. Pre.	43.9 ± 4.1^† † P < 0.05 vs. Post. TRAP = total radical-trapping antioxidant potential. AOPP = advanced oxidation protein products.	< 0.01
Muscle mass (kg)	19.0 ± 3.5	20.0 ± 4.2^* * P < 0.05 vs. Pre.	19.7 ± 4.1^* * P < 0.05 vs. Pre. ^† † P < 0.05 vs. Post. TRAP = total radical-trapping antioxidant potential. AOPP = advanced oxidation protein products.	< 0.01
Oxidative stress
TRAP (µmol Trolox)	688.6 ± 90.3	792.6 ± 130.8^* * P < 0.05 vs. Pre.	761.2 ± 120.2^* * P < 0.05 vs. Pre. ^† † P < 0.05 vs. Post. TRAP = total radical-trapping antioxidant potential. AOPP = advanced oxidation protein products.	< 0.001
AOPP (µmol/L)	95.6 ± 22.0	90.0 ± 21.0	86.8 ± 25.2	0.31

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