scholarly journals Exertion in Kangoo Jumps Aerobic: Evaluation and Interpretation Using Spectroscopic Technique Determinations

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Cristina Popa ◽  
Mihai Patachia ◽  
Stefan Banita ◽  
Dan Constantin Dumitras
Keyword(s):  
Exercise Program ◽  
Spectroscopic Technique ◽  
The Body ◽  
Radical Reactions ◽  
Exhaled Breath ◽  
Free Radical Reactions ◽  
Laser Photoacoustic Spectroscopy ◽  
By Products ◽  
Aerobic Evaluation ◽  
Real World Problems

Laser photoacoustic spectroscopy (LPAS) is growing quickly in its applications to real world problems—one of the problems is to prevent obesity—being a candidate technology for breath analysis applications. The ongoing paper is aiming to investigate the evaluation of oxidative stress in womens practicing Kangoo Jumps (KJ) aerobics. Because it is not possible to directly measure free radicals in the body, we approach that by measuring the by-products (breath ethylene) that result from free radical reactions. We found out that the mixture of exhaled breath in women's after the KJ exercises contains low concentration of ethylene compared to the exhaled breath of the women before the start of exercise program. This result can add valuable information to the contribution to reduce the generation of prooxidants during and after KJ aerobics.

scholarly journals UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL AKAR SAMBILOTO (Andrographis paniculata (Burm.F.) Ness.) DENGAN METODE DPPH

2021 ◽  
Vol 4 (1) ◽  
pp. 20
Author(s):  
Yuri Pratiwi Utami
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Ethanol Extract ◽  
The Body ◽  
Andrographis Paniculata ◽  
Radical Reactions ◽  
Root Extract ◽  
Free Radical Reactions ◽  
Traditional Medicinal Plants ◽  
Percentage Yield

AbstractAntioxidants are compounds that can inhibit free radical reactions in the body. One of Indonesia's traditional medicinal plants that have antioxidant activity is sambiloto (Andrographis paniculata (Brum) Ness.). This study aimed to examine the antioxidant activity of the extract of bitter root (A. paniculata (Brum) Ness.). The ethanol extract was obtained by extracting the bitter root powder by maceration for 3x24 hours and remaceration for 2x24 hours. The resulting extract is a thick blackish brown extract and has a distinctive odor with a percentage yield of 6.67%. Antioxidant activity was measured by reducing DPPH free radicals with UV-Vis spectrophotometry at a wavelength of 517 nm. The results showed that sambiloto root extract had very strong antioxidant activity with an IC5016,634 g/mL value against DPPH free radicals.Keywords : Bitter root, antioxidant, DPPH   AbstrakAntioksidan merupakan senyawa yang dapat menghambat reaksi radikal bebas dalam tubuh. Salah satu tumbuhan obat tradisional Indonesia yang memiliki aktivitas sebagai antioksidan adalah sambiloto (Andrographis paniculata (Brum) Ness.). Penelitian ini bertujuan untuk menguji aktivitas antioksidan ekstrak akar sambiloto (A. paniculata  (Brum) Ness.).  Ekstrak etanol diperoleh dengan mengektraksi serbuk akar sambiloto dengan cara maserasi selama 3x24 jam dan dilakukan remaserasi kembali selama 2x24 jam. Ekstrak yang dihasilkan merupakan ekstrak kental berwarna coklat kehitaman dan bau khas dengan persen rendamen sebesar 6.67 %. Aktivitas antioksidan diukur melalui peredaman radikal bebas DPPH dengan spektrofotometri UV-Vis pada panjang gelombang 517 nm. Hasil Penelitian menunjukkan ekstrak akar sambiloto yang  memiliki aktivitas antioksidan sangat kuat dengan nilai IC5016,634 µg/mL terhadap radikal bebas  DPPH.Kata Kunci : Akar sambiloto, antioksidan, DPPH

The initial reaction mechanism and thermal sensitivity of a fluoropolymer-containing energetic molecular system: the coupling effect of interfacial interactions and free radical reactions

CrystEngComm ◽  
2021 ◽  
Vol 23 (16) ◽  
pp. 3006-3014
Author(s):  
Wen Qian
Keyword(s):  
Free Radical ◽  
Coupling Effect ◽  
Molecular System ◽  
Thermal Sensitivity ◽  
Radical Reactions ◽  
Initial Reaction ◽  
Interfacial Interactions ◽  
Free Radical Reactions ◽  
Molecular Systems ◽  
Reactive Molecular Dynamics

A strategy combining classic and reactive molecular dynamics is applied to find the coupling effect of interfacial interactions and free radical reactions during the initial thermal decomposition of fluoropolymer-containing molecular systems.

Effects of a motor imagery-based exercise protocol on chronic pain and emotional distress in patients with fibromyalgia syndrome: A pilot study

2021 ◽  
pp. 1-10
Author(s):  
Teresa Paolucci ◽  
Francesco Agostini ◽  
Massimiliano Mangone ◽  
Andrea Torquati ◽  
Simona Scienza ◽  
...  
Keyword(s):  
Motor Imagery ◽  
Fibromyalgia Syndrome ◽  
Coping Behavior ◽  
Exercise Program ◽  
Rehabilitation Program ◽  
The Body ◽  
Control Group ◽  
Exercise Protocol ◽  
And Coping

BACKGROUND: Fibromyalgia (FM) is a chronic condition characterized by widespread muscular or musculoskeletal pain of at least 3 months’ duration, occurring above and below the waist, on both sides of the body. OBJECTIVE: The aim of this study was to evaluate the effectiveness of a rehabilitation program based on motor imagery versus a conventional exercise program in FM in terms of pain, functional and psychological outcomes. METHODS: Twenty-nine female subjects were randomly assigned to a group receiving motor imagery-based rehabilitation (MIG) or to a control group (CG) performing conventional rehabilitation. Outcome assessments were performed before (T0) and after 10 sessions of treatment (T1) and at a 12-week follow-up (T2). Pain, function and psychological measurements were conducted by means of different questionnaires. RESULTS: Both treatments improved all outcomes at post-treatment (T1) and follow-up (T2). The MIG showed a significant improvement in anxiety disorder associated with FM with respect to the CG, as well as improvements in coping strategies. CONCLUSIONS: Rehabilitation treatment based on motor imagery showed a stronger effect on anxiety and coping behavior than traditional physiotherapy in patients with FM. Integrated psychological support would be desirable in this setting. Further research is needed to explore the aspects investigated in more depth.

Further studies on free-radical pathology in the major central nervous system disorders: effect of very high doses of methylprednisolone on the functional outcome, morphology, and chemistry of experimental spinal cord impact injury

1982 ◽  
Vol 60 (11) ◽  
pp. 1415-1424 ◽  
Author(s):  
H. B. Demopoulos ◽  
E. S. Flamm ◽  
M. L. Seligman ◽  
D. D. Pietronigro ◽  
J. Tomasula ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Central Nervous System ◽  
Nervous System ◽  
Free Radical ◽  
Tissue Injury ◽  
Functional Restoration ◽  
Radical Reactions ◽  
Free Radical Reactions ◽  
Cord Injury

The hypothesis that pathologic free-radical reactions are initiated and catalyzed in the major central nervous system (CNS) disorders has been further supported by the current acute spinal cord injury work that has demonstrated the appearance of specific, cholesterol free-radical oxidation products. The significance of these products is suggested by the fact that: (i) they increase with time after injury; (ii) their production is curtailed with a steroidal antioxidant; (iii) high antioxidant doses of the steroidal antioxidant which curtail the development of free-radical product prevent tissue degeneration and permit functional restoration. The role of pathologic free-radical reactions is also inferred from the loss of ascorbic acid, a principal CNS antioxidant, and of extractable cholesterol. These losses are also prevented by the steroidal antioxidant. This model system is among others in the CNS which offer distinctive opportunities to study, in vivo, the onset and progression of membrane damaging free-radical reactions within well-defined parameters of time, extent of tissue injury, correlation with changes in membrane enzymes, and correlation with readily measurable in vivo functions.

scholarly journals Sustainable Sources from Aquatic Organisms for Cosmeceuticals Ingredients

Cosmetics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 48
Author(s):  
Carmen G. Sotelo ◽  
María Blanco ◽  
Patricia Ramos ◽  
José A. Vázquez ◽  
Ricardo I. Perez-Martin
Keyword(s):  
Social Issues ◽  
Good Condition ◽  
Aquatic Organisms ◽  
The Body ◽  
Fishing Activity ◽  
Marine Biomass ◽  
Cosmetic Industry ◽  
Wide Range ◽  
Long Life ◽  
By Products

Long life expectancy of populations in the developing world together with some cultural and social issues has driven the need to pay special attention to health and physical appearance. Cosmeceuticals are gaining interest in the cosmetic industry as their uses fulfills a double purpose: the requirements of a cosmetic (clean, perfume, protect, change the appearance of the external parts of the body or keeping them in good condition) with a particular bioactivity function. The cosmetics industry, producing both cosmetics and cosmeceuticals, is currently facing numerous challenges to satisfy different attitudes of consumers (vegetarianism, veganism, cultural or religious concerns, health or safety reasons, eco-friendly process, etc.). A currently growing trend in the market is the interest in products of low environmental impact. Marine origin ingredients are increasingly being incorporated into cosmeceutical preparations because they are able to address several consumer requirements and also due to the wide range of bioactivities they present (antioxidant, whitening, anti-aging, etc.). Many companies claim “Marine” as a distinctive marketing signal; however, only a few indicate whether they use sustainable ingredient sources. Sustainable marine ingredients might be obtained using wild marine biomass through a sustainable extractive fishing activity; by adopting valorization strategies including the use of fish discards and fish by-products; and by sustainably farming and culturing marine organisms.

Solvent Effects on the Oxidative Free Radical Reactions of 2-Amino-1,4-naphthoquinones.

ChemInform ◽  
2005 ◽  
Vol 36 (14) ◽  
Author(s):  
Chao-Ming Tseng ◽  
Yi-Lung Wu ◽  
Che-Ping Chuang
Keyword(s):  
Free Radical ◽  
Solvent Effects ◽  
Radical Reactions ◽  
Free Radical Reactions

Simulation of dioxygen free radical reactions

1993 ◽  
Vol 21 (3) ◽  
pp. 256S-256S ◽  
Author(s):  
PEDRO MONIZ-BARRETO ◽  
DAVID A. FELL
Keyword(s):  
Free Radical ◽  
Radical Reactions ◽  
Free Radical Reactions
Sign in / Sign up

Export Citation Format

Share Document