The Nebraska Workers’ Compensation Court ordered the defendants-appellants, the employer Fagen Inc. and its workers’ compensation carrier, St. Paul Fire and Marine Insurance Company, to pay the plaintiff-appellee, the employee Richard *679E. Cox, benefits as detailed later herein because of injuries Cox sustained in putting on a pair of coveralls while at his workplace. The defendants thereupon appealed to the Nebraska Court of Appeals, arguing, in summary, that the compensation court erred in (1) concluding that Cox suffered a compensable injury, (2) calculating his wage rate, and (3) determining the benefits due him. On our own motion, we removed the appeal to this court.
SCOPE OF REVIEW
A judgment, order, or award of the compensation court may be modified, reversed, or set aside only upon the grounds that (1) the compensation court acted without or in excess of its powers; (2) the judgment, order, or award was procured by fraud; (3) there is not sufficient competent evidence in the record to warrant the making of the judgment, order, or award; or (4) the findings of fact by the compensation court do not support the order or award. Pettit v. State, ante p. 666, 544 N.W.2d 855 (1996); Toombs v. Driver Mgmt., Inc., 248 Neb. 1016, 540 N.W.2d 592 (1995); Buckingham v. Creighton University, 248 Neb. 821, 539 N.W.2d 646 (1995); Neb. Rev. Stat. § 48-185 (Reissue 1993).
FACTS
Cox began working for Fagen in September 1993 as an electrician. His duties included lifting large amounts of wire and pulling the wire through pipes, tasks which required frequent bending, walking, twisting, and climbing.
On December 27, 1993, Cox drove to a jobsite to check a temporary power board. When he arrived at the building, he got out of the truck, went inside, took off his one-piece coveralls, and inspected the board. Afterward, he went to put his coveralls back on; as he lifted his leg to do so, he felt a sharp pain in his back and fell against some crates. Cox testified that he had lifted his leg 3 to 372 feet to put on his coveralls and that this process involved bending and twisting. A fellow employee came upon Cox after his injury and drove him to the office, where the injury was reported. Cox was then taken to a hospital emergency room for treatment.
*680Following his hospital treatment, Cox sought treatment from an orthopedist, who ordered a study of Cox’s lumbar area, which was performed on January 31, 1994. The study indicated some bulging of two lumbar disks and a small protrusion of another lumbar disk which was touching the left anterior aspect of the thecal sac. Because the study indicated that Cox could have nerve trouble and was not getting any better with the treatment provided, the orthopedist referred Cox to a neurologist. The neurologist advised the orthopedist that Cox had a nerve root irritation in the low back and that the study was strongly suggestive of a herniated disk at LI-2. The orthopedist considered the neurologist’s findings to be significant in that they probably indicated the cause of Cox’s pain.
Prior to Cox’s workplace injury, he had seen a chiropractor for treatment for pain in his low back and left leg. The chiropractor treated Cox from June 18 through July 6, 1992, and on March 10 and May 3 and 17, 1993. The orthopedist testified that the injuries Cox reported to the chiropractor were the same injuries that Cox sustained on December 27, 1993.
In March 1994, Fagen offered Cox what Fagen considered to be a light-duty job; as he needed the money, Cox decided to try it, despite the fact that the orthopedist had advised him to remain off work until May 31. On March 29, 1994, Cox reported to work. His duties included “terminating motors,” an activity which required bending and twisting on a constant basis. After that day’s work, Cox experienced pain in his back and had trouble sleeping, but reported to work the next day. There is conflicting testimony as to what then transpired, but it is undisputed that Cox did not return to work thereafter. Cox testified that after reporting to work the second day, he asked for a job that did not require as much twisting and bending,, but that his request was denied and he went home. A former Fagen employee stated that the reason Cox wanted a different job was because it was too cold to terminate motors outside. On March 30, Cox wrote Fagen a letter offering to return if there was light-duty work, but never received a response.
The vocational rehabilitation analysis agreed to by Cox and Fagen, and subsequently approved by the compensation court, *681called for Cox to attend school at Southeast Community College, pursuing a degree in electronics service technology.
The parties also agreed that an analysis of Cox’s loss of earning capacity should be made. In performing the analysis, it was assumed that Cox was earning $600 per week at the time of his injury. Based upon the assumption that Cox was receiving $600 per week, the analyst concluded that Cox had suffered a 60-percent loss of earning capacity because of the injury he suffered on December 27, 1993. (The compensation court found that at the time of the injury, Cox was receiving an average weekly wage of $670.23.)
COMPENSABILITY OF INJURY
In urging that Cox did not sustain a compensable injury, the defendants assert that the injury did not result from an accident arising out of and in the course of employment, as required by Neb. Rev. Stat. § 48-101 (Reissue 1993). See, Johnson v. Holdrege Med. Clinic, ante p. 77, 541 N.W.2d 399 (1996); Mauser v. Douglas & Lomason Co., 192 Neb. 421, 222 N.W.2d 119 (1974).
We have held that for purposes of the foregoing statute, an injury is accidental if either its cause was accidental in character or its effect was unexpected or unforeseen, and the injury happened suddenly and violently. Crosby v. American Stores, 207 Neb. 251, 298 N.W.2d 157 (1980); Wolfe v. American Community Stores, 205 Neb. 763 , 290 N.W.2d 195 (1980); Eliker v. D. H. Merritt & Sons, 195 Neb. 154, 237 N.W.2d 130 (1975). The occurrence must also produce at the time objective symptoms of injury. Union Packing Co. v. Klauschie, 210 Neb. 331, 314 N.W.2d 25 (1982). In addition,
[t]he claimant shall have a burden of proof to establish by a preponderance of the evidence that such unexpected or unforeseen injury was in fact caused by the employment. There shall be no presumption from the mere occurrence of such unexpected or unforeseen injury that the injury was in fact caused by the employment.
Neb. Rev. Stat. § 48-151(2) (Reissue 1993).
Here, there is no question that the act of putting on his coveralls produced in Cox an effect which was unexpected or *682unforeseen, which happened suddenly and violently, and which produced at the time objective symptoms of injury. Moreover, there is sufficient competent evidence in the record to support the trial judge’s finding that Cox’s injury was in fact caused by his employment. Thus, the evidence clearly establishes that an accident occurred, as that term is defined in § 48-101.
The question, then, is whether the accident arose out of and in the course of Cox’s employment with Fagen. As recently reaffirmed, there are two components to the “arising out of and in the course of employment” test. The term “arising out of” describes the accident and its origin, cause, and character, that is, whether it resulted from the risks arising within the scope of the employee’s job. The term “in the course of” refers to the time, place, and circumstances surrounding the accident. The two phrases are conjunctive, and the claimant must establish by a preponderance of the evidence that both conditions exist. Johnson, supra; Union Packing Co., supra.
The “in the course of” requirement has been defined as testing the “work connection as to time, place, and activity; that is, it demands that the injury be shown to have arisen within the time and space boundaries of the employment, and in the course of an activity whose purpose is related to the employment.” Moore v. The Sisk Co., 216 Neb. 451, 454, 343 N.W.2d 767, 769 (1984). In his treatise, Professor Arthur Larson notes that the “course of employment embraces all activities connected with changing clothes before and after work .... Similar acts during work hours are also of course covered . . . .” 1A Arthur Larson & Lex K. Larson, The Law of Workmen’s Compensation § 21.61 at 5-54 and 5-56 (1995). As Cox was putting on the coveralls during work hours, his injury occurred in the course of employment. As a consequence, this requirement is satisfied.
That brings us to the “arising out of” requirement, which is primarily concerned with causation. Determination of causation is ordinarily a matter for the trier of fact. Tarvin v. Mutual of Omaha Ins. Co., 238 Neb. 851, 472 N.W.2d 727 (1991); Heiliger v. Walters & Heiliger Electric, Inc., 236 Neb. 459, 461 N.W.2d 565 (1990). Factual determinations by the compensation court will not be set aside on appeal unless such *683determinations are clearly erroneous. Toombs v. Driver Mgmt., Inc., 248 Neb. 1016, 540 N.W.2d 592 (1995); Aken v. Nebraska Methodist Hosp., 245 Neb. 161, 511 N.W.2d 762 (1994). In this case, the compensation court determined that the injury arose out of Cox’s employment.
On appeal, the defendants assert the compensation court erred in deciding this causation issue against them. The defendants find significant the fact that Cox had a preexisting back condition and that when Cox sustained his injury, he was engaged in what the defendants termed “everyday activity.” Even if we were to agree with the defendants’ characterization that Cox was engaged in “everyday activity,” the defendants nonetheless ask this court to ignore our prior holdings which are consistent with a majority of jurisdictions that have considered the issue.
Professor Larson describes situations such as Cox’s as mixed risks — that is, where risks personal to the employee, such as a preexisting back condition, mix with those risks distinctively associated with employment. “The law does not weigh the relative importance of the two causes, nor does it look for primary and secondary causes; it merely inquires whether the employment was a contributing factor. If it was, the concurrence of the personal cause will not defeat compensability.” 1 Larson & Larson, supra, § 7.40 at 3-14.
Injuries arising out of risks or conditions personal to the claimant do not arise out of the employment unless the employment contributes to the risk or aggravates the injury. When the employee has a preexisting physical weakness or disease, this employment contribution may be found ... in placing the employee in a position which [precipitates] the effects of the condition by strain or trauma.
Id., § 12.00 at 3-349. “Preexisting disease or infirmity of the employee does not disqualify a claim under the ‘arising out of employment’ requirement if the employment aggravated, accelerated, or combined with the disease or infirmity to produce the death or disability for which compensation is sought.” Id., § 12.21 at 3-381.
*684Moreover, in a case where a claimant with a history of back problems reinjured his back while moving a refrigerator for his employer, this court held:
In a workers’ compensation case involving a preexisting condition, the claimant must prove by a preponderance of evidence that the claimed injury or disability was caused by the claimant’s employment and is not merely the progression of a condition present before the employment-related incident alleged as the cause of the disability. [Citations omitted.] However, a workers’ compensation claimant may recover when an injury, arising out of and in the course of employment, combines with a preexisting condition to produce disability, notwithstanding that in the absence of the preexisting condition no disability would have resulted.
Miner v. Robertson Home Furnishing, 239 Neb. 525, 531, 476 N.W.2d 854, 859 (1991).
We do not accept the defendants’ characterization that Cox was performing “everyday activity” when he sustained his injury. Putting on coveralls over workboots and other heavy clothing at a jobsite is clearly not an everyday nonemployment activity. However, even if Cox’s injury would have been sustained during what could fairly be considered “everyday activity, ” if this everyday activity constituted a risk contributed by employment, and the activity combined with a preexisting condition to cause injury, then compensation is due.
It cannot be said that the compensation court was clearly erroneous in the determination that Cox’s injury was caused by his employment. It was Cox’s employment which put him in the position which precipitated the trauma he suffered. At a minimum, Cox’s employment combined with his preexisting condition to produce the disability for which he sought compensation. The medical evidence is such that the compensation court as the finder of fact could reasonably conclude that the act of putting on the coveralls caused the injury. In view of that medical evidence, it cannot be said that the compensation court erred in finding that Cox’s injury arose out of his employment with Fagen.
*685WAGE RATE
In contending that the compensation court erred in failing to consider Cox’s past wage history when calculating his loss of earning capacity benefits, the defendants argue that Cox’s position with Fagen was only temporary and that, as such, his past wage history, in which he made less than he was making at Fagen, should have been considered.
Neb. Rev. Stat. § 48-121(2) (Reissue 1993) of the Nebraska Workers’ Compensation Act provides in pertinent part: “For disability partial in character ... the compensation shall be sixty-six and two-thirds percent of the difference between the wages received at the time of the injury and the earning power of the employee thereafter . . . .” The statute does not provide for consideration of past wage history, whether the claimant was employed in a temporary position or otherwise.
The compensation court therefore did not err in considering only the wages Cox was receiving at the time of his injury; to do otherwise would have been to contradict the explicit wording of the statute.
BENEFITS DUE
Finally, the defendants claim that the compensation court erred in concluding that Cox was entitled to temporary total disability benefits after March 30, 1994, and to permanent partial disability benefits and vocational rehabilitation.
In urging that Cox was not entitled to temporary total disability benefits after March 30, 1994, the defendants point out that Fagen offered Cox a position that he could return to on March 29, 1994, which was within his physical limitations and that Cox quit that position the following day, thereby waiving any future claim for temporary total disability from that date.
The compensation court found that Cox continued to be temporarily totally disabled until May 25, 1994, the day he was released to work by the orthopedist. (Actually, the orthopedist stated in his deposition that he did not release Cox to work until May 31, 1994.) Whether a workers’ compensation claimant has sustained a disability which is total or partial and which is temporary or permanent is a question of fact. Schmid v. Nebraska Intergov. Risk Mgt. Assn., 239 Neb. 412, 476 N.W.2d *686243 (1991); Roan Eagle v. State, 237 Neb. 961, 468 N.W.2d 382 (1991). Generally, whether a worker has reached maximum medical improvement is a question of fact. Foreman v. State, 240 Neb. 716, 483 N.W.2d 752 (1992). In addition, whether the job offered by Fagen to Cox was within Cox’s physical limitations is also a question of fact.
The evidence adduced showed that the orthopedist did not release Cox to work until May 25, 1994, and Cox himself testified that the job provided him by Fagen was too strenuous, because it involved too much bending, twisting, and walking. He also testified that he requested a different position without such strain, but when such request was denied, he left. Based on this evidence, the compensation court’s findings with respect to the period of Cox’s temporary total disability cannot be said to be clearly erroneous.
The defendants also urge that “[a]ny future loss of earning capacity should be considered de minimus [sic] in light of the fact that [Cox] had the opportunity to return to [Fagen] earning the same rate of pay as an electrician.” Brief for appellants at 31.
Thus, according to the defendants, the compensation court erred in awarding Cox permanent partial disability benefits and vocational rehabilitation. But as stated earlier, whether Fagen offered Cox a job on March 29, 1994, that was within his physical limitations was a question of fact. Implicit in the compensation court’s finding that Cox was temporarily totally disabled through May 25, 1994, is that Cox did not have the opportunity to return to Fagen at the same rate of pay as an electrician. The compensation court therefore did not err in awarding Cox the benefits it awarded.
CONCLUSION
For the foregoing reasons, the award of the compensation court is affirmed. Cox is awarded the sum of $2,500 to be applied to the services of his attorneys in this court, including the appearance at oral argument.
Affirmed.