Because different tissues use varying amounts of energy, the BMR is influenced by the amounts of lean body mass, mostly muscle, in the body. Higher BMR levels result from greater levels of lean body mass. Since males tend to have more lean body mass than women, their BMR is generally higher.
What increases basal metabolic rate?
Amount of physical activity – hard-working muscles need plenty of energy to burn. Regular exercise increases muscle mass and teaches the body to burn kilojoules at a faster rate, even when at rest. Drugs – like caffeine or nicotine, can increase the BMR.
What increases basal metabolic rate quizlet?
An over-secretion of thyroid hormones (hyperthyroidism) speeds up BMR; under-secretion of thyroid hormones (hypothyroidism) lowers BMR. The change may be as great as 50%. Very hot and very cold environment temperatures increases the BMR because they body expands more energy to regulate its own temperature.
What factor most affects basal metabolic rate quizlet?
Terms in this set (13)
- AGE. lean body mass diminishes with age, slowing the BMR.
- HEIGHT. in tall, thin people, the BMR is higher.
- GROWTH. in children, teens and pregnant women the BMR is higher.
- BODY COMPOSITION (gender) more lean tissue means higher BMR. …
- FEVER. …
- Stresses. …
- Environmental temperature. …
What are factors that can increase or decrease BMR explain each quizlet?
Factor that can increase or decrease BMR are gender, hormones, body size, body composition, and age. Gender can affect BMR because women process more body fat and less muscle mass than men of a similar size.
What is a good BMR score?
Most men have a BMR of about 1,600 to 1,800 kCals a day. Most women have a BMR of 1,550 kCals a day.
Is it good to have a high or low basal metabolic rate?
“A higher BMR means you need to burn more calories to sustain yourself throughout the day. A lower BMR means your metabolism is slower. Ultimately, leading a healthy lifestyle, exercising, and eating well is what’s important,” said Trentacosta.
What is your basal metabolic rate?
Basal Metabolic Rate is the number of calories required to keep your body functioning at rest. BMR is also known as your body’s metabolism; therefore, any increase to your metabolic weight, such as exercise, will increase your BMR. To get your BMR, simply input your height, gender, age and weight below.
Which group has the highest metabolic rate?
Hummingbirds, with their tiny bodies and high levels of activity, have the highest metabolic rates of any animals — roughly a dozen times that of a pigeon and a hundred times that of an elephant. To maintain those rates, hummers have to consume about their weight in nectar daily.
How does basal metabolic rate related to energy quizlet?
Basal metabolic rate describes the total amount of energy expended during resting. … Basal metabolic rate describes the total amount of energy expended during resting. You just studied 41 terms!
Which of the following hormones affects basal metabolic rate?
The basal metabolic rate, which is the amount of calories required by the body at rest, is determined by two hormones produced by the thyroid gland: thyroxine, also known as tetraiodothyronine or T4, and triiodothyronine, also known as T3.
Which gender tends has higher BMR?
Basal metabolic rate
Men usually have a higher BMR than women since they tend to have more muscle. Older adults usually have a lower BMR than younger people since their muscle mass tends to decrease with age. The BMR accounts on average for about three quarters of an individual’s energy needs.