Working out in the Afternoon
) For example, if you can make it to the gym only from 2:30 to 3:30 pm and keep doing that on a consistent basis, you will reap the benefits as your body adjusts to that time and actually perform better than other times during the day. Another interesting research finds that if you stick to a program long enough at the same time of day, it will result in better performance, efficient oxygen consumption and less perceived effort and exhaustion. (
). Specific and consistent training like this helps your body adapts towards better performance.
Other Factors that Affect Performance
Muscle temperature: your body and muscles are still cold and stiff in the morning which gives you more injury risk. So if you’re a morning exerciser, make sure to warm up well. Muscle strength actually increases during the late afternoon when your muscles are at their warmest temperature. (https://www.ncbi.nlm.nih.gov/pubmed/21029194).
Testosterone Level: Testosterone plays a vital role in muscle growth and strength in both men and women. The body actually produces more testosterone during late afternoon resistance training than it does during morning workouts. (https://www.ncbi.nlm.nih.gov/pubmed/20560706)
Effect on Sleep: Exercise will increase your heart rate and body temperature helping you wake up. So even if your muscles are cold and stiff in the morning and you are feeling groggy. Getting an exercise in first thing could help solve that! Given its effect on heart rate and body temperature, exercise in the late evening or at night may keep you up and disrupt your sleep. If you want to get a good night’s sleep, avoid exercising before bed. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270305/)
Effect on appetite: Losing weight is about calorie balance and also eating the nutrient dense calories. A study found that 45 minutes of moderate exercise in the morning helped reduced appetite after the workout.
(https://www.ncbi.nlm.nih.gov/pubmed/22617393) This can prevent us overeating our calories during the day and keep insulin levels low in the morning, which helps burn more body fat. It’s also been found that we burn 20 percent more fat exercising on an empty stomach, which works best first thing in the morning.https://www.ncbi.nlm.nih.gov/pubmed/23340006