Any time you increase/change your intensity or the exertion level (e.g. incline or resistance) enough to challenge your body beyond what you're acclimated to and make you 'work' harder, is a great thing. It is during this acclimation period where it is HARDER that you gain the most benefit. So you need to keep changing it up every month or maybe even every couple weeks. Don't forget to mix in a different machine or exercise type that will work different muscle groups every now and then.OK, I've been doing treadmill since the beginning of the year and have lost around 30 lbs so far (went from 230 down to around 200 lbs right now). It seems I have hit a huge plateau though so lately I've been doing about 1 hour on treadmill at around 3-3.3 mph at 7-8 incline 6-7 days a week. I would sweat like crazy by the end and the calorie counter would tell that I have burned 500+ calories and covered around 3 miles in distance. Would doing this help me lose further weight or should I switch over to jogging/faster walking on treadmill?
Also, how is your nutrition? A couple-few days per week, you should try to work-out in the morning on an empty stomach, then wait 45 ~ 60 minutes post workout before you eat. If you have some hypoglycemia issues, you can try to eat a couple hundred calories in really lean protein with little fat and carbs in the morning prior to your workout. e.g. some scrambled egg whites and a non-starchy veggie, or something else that is almost entirely protein with very little fat and carbs
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