Compared to subjects who reported no physical activity, those who reported 64 minutes per day had the greatest reduction in risk of premature death (39 percent lower risk). Walking contributed most to physical activity in the study. Would you be willing to trade an hour of sitting in front of the tube each day for an hour of walking?more
Cardio Benefits of High-Intensity Interval Training
Better cardio in less time Overweight and diabetic people can benefit One of my previous posts extolled the benefits of interval training (IT). To refresh your memory, IT refers to periods of movement, such as running or stair climbing or rowing, with each movement period followed by a recovery period, such as walking slowly. IT…more
Do Seniors Need More Protein to Avoid Sarcopenia?
The participants ate one of two meal types. (1) 90 grams of high-quality protein per day for seven days in equal amounts at daily meals (about 30 grams each). (2) 90 grams of high-quality protein per day for seven days with most of the protein at dinner (63 grams), 11 grams at breakfast, and 16 grams at lunch. Over a 24-hour period, participants who ate equal amounts of protein at each meal synthesized about 30 percent more muscle protein compared participants who ate most of their protein at dinner. Thus, some researchers now recommend eating 25 – 30 grams of protein at each daily meal to promote maximum muscle protein synthesis.more
Legacy Effects of Physical Training
Unsurprisingly, cardiorespiratory fitness, measured as peak oxygen consumption, declined for members of all four groups over 10 years. But the exercisers showed significantly lower decline (4.7 percent) than the control group (9.6 percent). Vigorous exercisers showed even lower decline (3.0 percent). Average waist circumference increased significantly more for the control group (2 inches) than the exercisers (less than one-half inch). Mean arterial blood pressure dropped for all participant groups over 10 years. Curiously, blood pressure for the low moderate exercisers declined the most (5 mm Hg) relative to the control group. Fasting insulin levels decreased significantly (in a healthy direction) for the lower moderate exercisers compared to the control group. Blood glucose increased for all groups over 10 years with no significant differences between the groups. This lack of differences may have reflected the fact that about half of the participants were taking medications that could affect blood sugar levels.more