RESEARCH ROUND-UP Health surveys – a biased view
and those from lower social classes – are often under- represented in the samples. The East of England Healthy Hearts Study is a large
N E
health and fitness survey of UK youth. Ninety-eight per cent of schoolchildren who were asked to take part in
ational health surveys misrepresent the UK’s health status because certain key groups – overweight individuals, especially females,
the 2007 study did so. Two years later they were invited back to be re-tested, but not all the original participants returned. Parents were 13 times more likely not to let girls take part in 2009. They were also 10 times more likely not to let children who were overweight in 2007 be re-tested in 2009. Children who were overweight in 2007 were also more likely to refuse to be weighed in 2009, even if their parents provided consent.
Christine Voss, East of England Healthy Hearts Study team, University of Essex
Breakfast and adolescent memory
ating a certain type of breakfast before going to school could enhance adolescents’ ability to learn during the morning.
Researchers at Loughborough University measured
changes in memory and attention among 41 adolescents who consumed breakfasts of varying glycaemic indices (GI), as well as a group who skipped breakfast. Memory and attention were better maintained across
the morning following a low GI breakfast, compared to other groups. Performance was assessed in terms of response times (how fast the adolescents responded) and accuracy (how many of their responses were correct). Both measures were enhanced following the low GI breakfast. Interestingly, the more difficult the tests, the greater the effect of the low GI breakfast in comparison with the other groups.
Simon Cooper, research student, Loughborough University
56 Exercise and dietary behaviour
the University of Leeds. Lean people tend to consume a smaller weight of
W
high-fat foods in their diet, suggesting they have a biological mechanism that recognises intake of fat. Obese individuals tend to eat the same amount of food but select foods with much higher fat content. In the study, obese people initially demonstrated a
control of eating based on the weight of food eaten, not the amount of calories contained in that food. However, during a 12-week supervised exercise programme, they demonstrated a progressive reduction in self-selected high- fat food. Exercise was therefore seen to have a beneficial effect on dietary behaviour, helping people reduce the intake of high-risk, bodyweight-increasing foods.
Catherine Gibbon, researcher, University of Leeds
hen people engage in regular exercise, they regulate their fat intake better and move towards a healthier diet, say researchers at
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156 |
Page 157 |
Page 158 |
Page 159 |
Page 160 |
Page 161 |
Page 162 |
Page 163 |
Page 164 |
Page 165 |
Page 166 |
Page 167 |
Page 168 |
Page 169 |
Page 170 |
Page 171 |
Page 172 |
Page 173 |
Page 174 |
Page 175 |
Page 176 |
Page 177 |
Page 178 |
Page 179 |
Page 180 |
Page 181 |
Page 182 |
Page 183 |
Page 184 |
Page 185 |
Page 186 |
Page 187 |
Page 188 |
Page 189 |
Page 190 |
Page 191 |
Page 192 |
Page 193 |
Page 194 |
Page 195 |
Page 196 |
Page 197 |
Page 198 |
Page 199 |
Page 200 |
Page 201 |
Page 202 |
Page 203 |
Page 204 |
Page 205 |
Page 206 |
Page 207 |
Page 208 |
Page 209 |
Page 210 |
Page 211 |
Page 212 |
Page 213 |
Page 214 |
Page 215 |
Page 216 |
Page 217 |
Page 218 |
Page 219 |
Page 220