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The article focuses on a study on the effects of the application of the roller massager on quadriceps and knee-joint range of motion (ROM). It states that roller massaging led to increase in the knee joint ROM after 60 seconds, as compared to massaging after 20 seconds. It also reports that roller massaging for 60 seconds resulted in higher degree of feeling of pain, than the massaging for 20 seconds. It mentions roller massage is painful and induced muscle activity.

The objective of this study was to determine how a high-intensity circuit-training (HICT) program affects key physiological health markers in sedentary obesemen. Eight obese (body fat percentage> 26%) males completed a four-week HICT program, consisting of three 30-minute exercise sessions per week, for a total of 6 hours of exercise. Participants' heart rate (HR), blood pressure (BP), rating of perceived exertion, total work (TW), and time to completion were measured each exercise session, body composition was measured before and after HICT, and fasting blood samples were measured before throughout, and after HICT program. Blood sample measurements included total cholesterol, triacylglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, glucose, and insulin. Data were analyzed by paired t-tests and one-way ANOVA with repeated measures. Statistical significance was set to ρ < 0.05. Data analyses revealed significant (ρ < 0.05) improvements in resting HR (16% decrease), systolic BP (5.5% decrease), TW(50.7%), fat tissue percentage (3.6%), lean muscle tissue percentage (2%), cholesterol (13%), triacylglycerol (37%), and insulin (18%) levels from before to after HICT program. Overall, sedentary obese males experienced a significant improvement in biochemical, physical, and body composition characteristics from a HICT program that was only 6 hours of the total exercise. [ABSTRACT FROM AUTHOR]