Q During recent running I found that I lacked energy, and even though my heart rate was sky-high, I seemed to be plodding around every run. I went to my GP, and he diagnosed an underactive thyroid and prescribed Thyroxine. After a month, however
variability," says Dr Tim Church, coauthor of exercise guide Move Yourself. Think of it as having only two gears to tackle the Alpe d'Huez when you need 20. Low heart-rate variability leaves you at a higher risk for a fatal heart attack.Muscles:When you
improved range of motion in the hip flexors.StressYou don't need a full-body rubdown to feel good. In a 2010 study from Sweden, one 80-minute hand-and-foot massage significantly lowered subjects' heart rates, cortisol levels and insulin levels - all
. Circadian rhythms of heart rate, respiration and oxygen consumption increase during normal waking hours, and our heart rate is about 20 per cent higher at noon than it is at midnight (even if you sleep at noon). Injury risksTriathletes are also more likely
and maintain a reasonable pace, you still only have about 2,000 calories worth of glycogen stored in your muscles – enough to get most runners to about mile 18 or 20," he says. "As glycogen reserves are used up and fatty acid metabolism increases, your heart
and Griffith University in Australia. In fact, a 2009 study of over 10,000 subjects reported that between-meal nibblers were 69 per cent more likely to pack on pounds over five years.Frequent eating only works if you choose nutritious foods and are forever
used to warn pregnant women against exercise, fearing that the heat or high heart rate would harm the fetus. Plenty of women listened and felt stressed, tense, and fat throughout their pregnancies. Doctors now say that women who dont exercise may
says.Dr Jaques advises women to keep their heart rate at or below 140 beats per minute (bpm) while exercising. Experiments on pregnant dogs suggest that running at an intensity greater than 70 per cent VO2max (the point of maximum oxygen capacity
be manifested in a slightly raised resting heart rate. Make a habit of taking your pulse rate as soon as you wake up - if anything changes, you'll soon notice. An increase of 10bpm or more indicates that your body hasn't recovered from recent training
to exercise only at 140 bpm heart rate or below, for example, may be over-cautious for many athletes.If you're having an uncomplicated pregnancy and you were already running beforehand, then as long as everything is progressing as it should be and your doctor
