Appellant Marcos Amaya sustained a compensable injury to his back on June 2, 2004, when he stepped into a hole while attempting to carry a part of a heavy tree during the course of his employment with appellee Newberry’s 3N Mill. On appeal, he argues that the Workers’ Compensation Commission erred in its decision that he was not entitled to *121additional temporary partial disability benefits and that he was not entitled to additional medical treatment (back surgery). We affirm in part and reverse in part.
Following his undisputed compensable injury, Amaya was treated by Dr. Shannon Card, who ultimately referred him to Dr. Kelly Danks, a neurosurgeon. Dr. Danks recommended that Amaya undergo epidural steroid injections for his back injury after the physical therapy did not resolve all of his symptoms. In a report dated March 14, 2006, Dr. Danks noted:
Marcos returns. He had epidural steroid injection by Dr. Cannon. This only afforded him temporary relief of no more than two weeks. At this time, I have discussed his options with him, which include surgical treatment. He would most probably need a posterior lumbar interbody fusion at L4-5 and L4-S1. I do not believe surgery is going to return him to the status of being able to go back to roofing. At this time, he does not feel like he would like to proceed with surgical treatment. I have given him some Arthrotec to take. I have ordered a functional capacity to be performed on him. I will see him back after this is done.
Amaya underwent an independent medical evaluation by Dr. Steven Cathey on December 8, 2005. Dr. Cathey stated in his evaluation:
IMPRESSION: Chronic low back pain most likely secondary to degenerative lumbar disc disease. Although Mr. Amaya most likely did suffer some type of musculoskelatal injury a year and a half ago, I believe his continued symptoms are more likely related to the degenerative changes documented on the MRI scan than to the occupational injury itself.
RECOMMENDATIONS:
1. Although I would like to have an opportunity to review the MRI scan firsthand, I do not believe Mr. Amaya is a candidate for lumbar disc surgery, spinal fusion, or other neurosurgical intervention. Based on my review of Dr. Danks’ clinic notes, I do not believe he was particularly enthusiastic about the prospects of surgery helping in this case either.
2. I believe epidural steroid injections are a reasonable treatment option at this point. I believe this should also be covered under his *122workers [sic] compensation carrier. I base this on the fact that he was never offered epidural steroid injections during the initial phase of his injury and might have actually responded favorably had this been carried out.
3. Since the patient’s lower back pain has been refractory to trials of physical therapy, medication, etc[. . .], I really do not see much point in continuing these options any further.
4. As far as his job is concerned, I believe Mr. Amaya will either need to return to work at a regular duty or find something else to do where he can handle himself. Again, he does seem motivated to go back to work, and I believe he should be encouraged to along these lines. Perhaps a functional capacity evaluation is in order to help return him to the workforce. He certainly does not seem to be making any progress just sitting around the house every day.
5. I believe he has essentially reached maximal [sic] medical improvement with regard to his occupational injury. Since the degenerative changes noted on the MRI scan are almost certainly preexisting, I do not believe he has sustained any long-term impairment referable to the June 2, 2004, occupational injury.
6. I have encouraged the patient to follow up with Dr. Danks to discuss these issues with him if he remains symptomatic following the epidural steroid injection later this month. As always, I stand ready to reevaluate the patient should new problems arise.
On December 20, 2005, Dr. Cathey noted that he had reviewed Amaya’s MRI scan that he did not have available at the time of the IME. According to Dr. Cathey’s observation:
The study shows congenital spinal stenosis. There is a right para-central disc protrusion at L4-L5 an [sic] a smaller left paracentral disc herniation at L5-S1. I was not, however, impressed with any resulting nerve root compression or spinal stenosis at either L4-L5 or L5-S1.
ASSESSMENT/PLAN: Based on my review of Mr. Maaya’s [sic] MRI scan of his lumbar spine, I do not see an indication for lumbar disc surgery or other neurosurgical intervention. None of the other opinions rendered following his independent medical evaluation have been affected by my review of the MRI scan.
*123On March 21, 2006, Amaya underwent a functional capacity evaluation. The evaluation report noted that he gave an unreliable effort during the evaluation. Specifically, the report stated:
RELIABILITY AND CONSISTENCY OF EFFORT
The results of this evaluation suggest that Mr. Amaya gave an unreliable effort, with 40 of 55 consistency measures within expected limits. Mr. Amaya demonstrated higher than expected coefficient of variations with repetitive trial isometric strength testing, which is an indication of inconsistent effort between repeated trials. Mr. Amaya also had inappropriate results with horizontal strength change testing, which is also an indication of inconsistent effort with isometric strength testing. Mr. Amaya also demonstrated significandy higher force with both the right and left handed rapid grip exchange, which is an indication of sub-maximal effort with the hand grip testing. Mr. Amaya’s AROM with lumbar flexion was significantly limited during formal evaluation but with functional aspects of the testing, Mr. Amaya was noted to have minimal deficits with lumbar flexion. Mr. Amaya demonstrates normal movement patterns throughout testing yet demonstrated moaning with slow movement patterns with formal measurement. Mr. Amaya’s pain reports did not correlate with his movement patterns and overall abilities. He moved freely throughout testing and without significant body mechanic changes that indicated pain. He demonstrates no outward expression of pain and no facial expressions indicating pain as well. These do not correlate with his subjective complaints of pain at a level 7. His movement patterns did not change when his pain was between a 4 and 7. It is further noted that Mr. Amaya was positive on Waddell’s signs for non-organic back pain including passive hip rotation, overreaction to light touch, regional pain over a broad area and axial loading of the spine. These are inappropriate illness responses.
FUNCTIONAL ABILITIES
Mr. Amaya demonstrated inconsistent effort but did demonstrate the ability to perform material handling activities at the Medium level with an occasional lift/carry of 50 lbs. Mr. Amaya is able to perform the following activities on a Constant basis: Push Cart-40Lb, Pull Cart-40 Lb, Reach with 5 lb. Weight, Fingering (L), Fingering (R), Sitting and Standing, Mr. Amaya demonstrates no difficulty with sitting or standing. Mr. Amaya is able to perform the following activities on a Frequent basis: Walk, Balance, Stoop, *124Overhead (R), Handling (L), Handling (R). Mr. Amaya is able to perform the following activities on an Occasional basis: Carry up to 50 Lb.
FUNCTIONAL LIMITATIONS
Mr. Amaya’s true functional limitations remain unknown due to the inconsistencies that he demonstrated but he did not demonstrate the ability to handle material over 50 lbs. He performed at a level that placed him in the Frequent and Constant categories with functional activities.
CONCLUSIONS
Mr. Amaya underwent functional evaluation this date with unreliable results for effort. Overall Mr. Amaya demonstrates the ability to perform work at least at the MEDIUM Physical Demand Classification as determined through the Department of Labor.
After Amaya’s functional capacity evaluation, Dr. Danks authored a letter dated May 3, 2006. He stated that he had not evaluated Amaya since his last visit on March 14, 2006, and had not seen the results of the FCE. Dr. Danks reiterated his prior discussion of surgery and Amaya’s statement that he did not wish to proceed with surgery. Dr. Danks indicated that Amaya’s work limitations would be dictated by the FCE and noted that, in his opinion, Amaya had reached maximum medical improvement.
After considering the evidence presented at the hearing, the Administrative Law Judge found that Amaya had not proved by a preponderance of the evidence that he was entitled to additional medical treatment in the form of back surgery. The Commission affirmed the decision of the Administrative Law Judge on this point.
The Commission then addressed Amaya’s request for additional temporary total disability benefits. Specifically, the Commission was impressed with Dr. Cathey’s December 8, 2005, opinion that Amaya had reached maximum medical improvement. However, the Commission could not conclude that on that date Amaya had reached maximum medical improvement, because it was hamstrung by a prior — unchallenged — ALJ opinion from January 30, 2006, following a January 5, 2006 hearing. In that opinion, the ALJ found that “[Amaya] remains within his healing period for his compensable back injury.” Because there was no appeal from this decision, the Commission in the instant case *125attempted to reconcile the ALJ’s conclusion that Amaya was still in his healing period in late January 2006 with Dr. Cathey’s opinion that he had already reached maximum medical improvement in December 2005.
In a seemingly arbitrary conclusion, the Commission affixed the termination date of Amaya’s benefits, not on the date that Dr. Cathey opined, but on the date of the prior hearing, noting: “it is axiomatic that this finding only applied to the facts and evidence as presented at the January 5, 2006, hearing.” The Commission went on to note that since that hearing, Amaya had undergone an FCE (on March 21, 2006) in which he was found “to have given inappropriate pain responses and an unreliable effort.” The Commission also referenced Dr. Danks’s letter dated May 3, 2006, where he agreed that Amaya’s work restrictions would be as reflected in the FCE.
The Commission further noted that the only treatments that Amaya received after the January 5, 2006 hearing were epidural steroid injections (and a follow-up evaluation by Dr. Danks). The Commission found that the injections only afforded Amaya “temporary relief,” and, “as ofjanuary 5, 2006 [Amaya] had reached a plateau in his healing that no form of additional treatment would or could alleviate. At best, [Amaya] only required palliative treatment to maintain him at this present level of healing.” The Commission also went on to note that other than Amaya’s “own self-serving testimony that he is unable to work, there is absolutely no evidence that [he] should be awarded additional temporary total or temporary partial disability benefits.” The Commission believed that Amaya was “clearly not motivated to work” because, otherwise, he would have worked more than a day or two here and there. Based on these findings, the Commission reversed the ALJ’s award of temporary partial disability benefits from January 5, 2006, through March 21, 2006 (the date of Amaya’s FCE), and it is from this reversal (and the denial of his claim for additional treatment) that Amaya now appeals.
In appeals involving claims for workers’ compensation, this court views the evidence and all reasonable inferences deducible therefrom in the light most favorable to the Commission’s decision and affirms the decision if it is supported by substantial evidence. See Kimbell v. Ass’n of Rehab Indus. & Bus. Companion Prop. & Cas., 366 Ark. 297, 235 S.W.3d 499 (2006). Substantial evidence is evidence that a reasonable mind might accept as adequate to support a conclusion. Id. The issue is not whether the appellate *126court might have reached a different result from the Commission; if reasonable minds could reach the result found by the Commission, the appellate court must affirm the decision. Id. Where the Commission denies a claim because of the claimant’s failure to meet his burden of proof, the substantial-evidence standard of review requires that we affirm if the Commission’s decision displays a substantial basis for the denial of relief. Id. We will not reverse the Commission’s decision unless we are convinced that fair-minded persons with the same facts before them could not have reached the conclusions arrived at by the Commission. Dorris v. Townsends of Ark., Inc., 93 Ark. App. 208, 218 S.W.3d 351 (2005).
Questions concerning the credibility of witnesses and the weight to be given to their testimony are within the exclusive province of the Commission. Patterson v. Ark. Dep’t of Health, 343 Ark. 255, 33 S.W.3d 151 (2000). When there are contradictions in the evidence, it is within the Commission’s province to reconcile conflicting evidence and to determine the true facts. Id. The Commission is not required to believe the testimony of the claimant or any other witness, but may accept and translate into findings of fact only those portions of the testimony that it deems worthy of belief. Id . The Commission has the authority to accept or reject medical opinions, and its resolution of the medical evidence has the force and effect of a jury verdict. Poulan Weed Eater v. Marshall, 79 Ark. App. 129, 84 S.W.3d 878 (2002). Thus, we are foreclosed from determining the credibility and weight to be accorded to each witness’s testimony. Arbaugh v. AG Processing, Inc., 360 Ark. 491, 202 S.W.3d. 519 (2005). As our law currently stands, the Commission hears workers’ compensation claims de novo, and this court has stated that we defer to the Commission’s authority to disregard the testimony of any witness, even a claimant, as not credible. See Bray v. Int’l Wire Group, 95 Ark. App. 206, 235 S.W.3d 548 (2006).
In his first point on appeal, Amaya contends that substantial evidence does not support the Commission’s finding that he failed to prove that additional medical treatment (back surgery) was reasonably necessary for treatment of his injury. The law requires that “the employer shall promptly provide for an injured employee such medical, surgical, hospital, . . . and nursing services and medicine ... as may be reasonably necessary in connection with the injury received by the employee.” Ark.Code Ann. § 11 — 9— 508(a) (Supp. 2007). However, Amaya has the burden of proving *127by a preponderance of the evidence that surgery is reasonable and necessary. Patchell v. Wal-Mart Stores, Inc., 86 Ark. App. 230, 184 S.W.2d 31 (2004). What constitutes reasonable and necessary treatment under this statute is a question of fact for the Commission to decide. Gansky v. Hi-Tech Eng’g, 325 Ark. 163, 924 S.W.2d 790 (1996).
The question that we must resolve in the first point is whether the Commission’s decision denying Amaya’s back surgery is supported by substantial evidence. The evidence shows that Amaya was treated conservatively for his back injury with steroid injections. In a report dated March 14, 2006, Dr. Danks noted that the injections only provided temporary relief and that he had discussed various treatment options with Amaya — including surgery. However, Dr. Danks also noted that “[a]t this time [Amaya] does not feel like he would like to proceed with surgical treatment.” As a result, Dr. Danks ordered an FCE. The FCE was performed on March 21, 2006, and showed that, despite Amaya’s “unreliable effort,” he could still perform medium-level work. This finding is in direct conflict with Amaya’s testimony that he could only work an average of two days per week before having to rest several days. After the FCE, Dr. Danks authored a letter dated May 3, 2006. He noted in the letter that he had not seen Amaya since March 14, 2006, and that he had not seen the results of the FCE. Dr. Danks went on to conclude that in his opinion Amaya had reached maximum medical improvement. Finally, and most importantly, there was evidence presented showing that Dr. Cathey unequivocally opined that Amaya’s back troubles were degenerative and that he was not a surgical candidate.
After a review of the evidence, we affirm the Commission on this point. The opinions from Amaya’s own physician coupled with Cathey’s strong position that Amaya is not a surgical candidate satisfactorily establish that Amaya failed to meet his burden of proving that he was entitled to back surgery.
We now turn our attention to Amaya’s second point of appeal, that the Commission erred in its reversal of the ALJ’s award of temporary partial disability benefits through March 21, 2006 (the date of Amaya’s FCE). In order to be entitled to temporary partial disability benefits, Amaya had the burden of proving by a preponderance of the evidence that he remained in his healing period and that he suffered a partial incapacity to earn wages. Ark. State Highway & Transp. Dep’t v. Breshears, 272 Ark. 244, 613 S.W.2d 392 (1981). Amaya had the benefit of a prior hearing (held *128on January 5, 2006, with the corresponding opinion filed January 30, 2006), which awarded Amaya temporary partial disability benefits beginning on June 3, 2004, and continuing through a date “yet to be determined.” In the subsequent hearing the ALJ determined that the benefits would run through March 21, 2006, the date of Amaya’s FCE. However the Commission reversed this award, and determined that Amaya’s healing period concluded on January 5, 2006. The Commission’s decision was based on the opinion rendered by Dr. Cathey back in December of 2005 that Amaya had reached maximum medical improvement. Because there was an unchallenged finding that on January 5, 2006, Amaya was still in his healing period, the Commission was unable to terminate benefits on December 20, 2005, the date Dr. Cathey opined that Amaya had reached maximum medical improvement.
The Commission discounted the fact that Dr. Cathey stated (back in December of 2005) that Amaya should have steroid injections for his back trouble and that workers’ compensation should pay for the treatment. Cathey’s December opinion also recommended that Amaya follow up with Dr. Danks (which Amaya did on March 14). The Commission concluded that the two injections Amaya received in 2006 were only “pain management” and his doctor’s visit was just a “follow-up” — not active treatment.
We disagree. Our court has previously concluded that steroid injections are active treatment, and Dr. Cathey affirmatively described them as such. See Breakfield v. In & Out, Inc., 79 Ark. App. 402, 88 S.W.3d 861 (2002). Further, the record demonstrates that Amaya was still under a doctor’s care as late as March 14, 2006. Amaya was not officially released to return to work until March 21, 2006, the date of his FCE. As such, based on the substantial evidence presented at the hearing, Amaya’s disability benefits should not have been terminated on January 5, 2006. The Commission’s decision on this issue is reversed, and the case is remanded for an award of temporary partial disability benefits through March 21, 2006.
Affirmed in part and reversed and remanded in part.
Pittman, C.J., Glover, Baker, and Miller, JJ., agree.
Griffen, J., dissents.